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Vera-Vives AM, Novel P, Zheng K, Tan SL, Schwarzländer M, Alboresi A, Morosinotto T. Mitochondrial respiration is essential for photosynthesis-dependent ATP supply of the plant cytosol. THE NEW PHYTOLOGIST 2024; 243:2175-2186. [PMID: 39073122 DOI: 10.1111/nph.19989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 06/29/2024] [Indexed: 07/30/2024]
Abstract
Plants rely on solar energy to synthesize ATP and NADPH for photosynthetic carbon fixation and all cellular need. Mitochondrial respiration is essential in plants, but this may be due to heterotrophic bottlenecks during plant development or because it is also necessary in photosynthetically active cells. In this study, we examined in vivo changes of cytosolic ATP concentration in response to light, employing a biosensing strategy in the moss Physcomitrium patens and revealing increased cytosolic ATP concentration caused by photosynthetic activity. Plants depleted of respiratory Complex I showed decreased cytosolic ATP accumulation, highlighting a critical role of mitochondrial respiration in light-dependent ATP supply of the cytosol. Consistently, targeting mitochondrial ATP production directly, through the construction of mutants deficient in mitochondrial ATPase (complex V), led to drastic growth reduction, despite only minor alterations in photosynthetic electron transport activity. Since P. patens is photoautotrophic throughout its development, we conclude that heterotrophic bottlenecks cannot account for the indispensable role of mitochondrial respiration in plants. Instead, our results support that mitochondrial respiration is essential for ATP provision to the cytosol in photosynthesizing cells. Mitochondrial respiration provides metabolic integration, ensuring supply of cytosolic ATP essential for supporting plant growth and development.
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Affiliation(s)
- Antoni M Vera-Vives
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, Padova, 35131, Italy
| | - Piero Novel
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, Padova, 35131, Italy
| | - Ke Zheng
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Schlossplatz 8, Münster, D-48143, Germany
| | - Shun-Ling Tan
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, Padova, 35131, Italy
| | - Markus Schwarzländer
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Schlossplatz 8, Münster, D-48143, Germany
| | - Alessandro Alboresi
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, Padova, 35131, Italy
| | - Tomas Morosinotto
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, Padova, 35131, Italy
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2
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Forner J, Kleinschmidt D, Meyer EH, Gremmels J, Morbitzer R, Lahaye T, Schöttler MA, Bock R. Targeted knockout of a conserved plant mitochondrial gene by genome editing. NATURE PLANTS 2023; 9:1818-1831. [PMID: 37814021 PMCID: PMC10654050 DOI: 10.1038/s41477-023-01538-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 09/07/2023] [Indexed: 10/11/2023]
Abstract
Fusion proteins derived from transcription activator-like effectors (TALEs) have emerged as genome editing tools for mitochondria. TALE nucleases (TALENs) have been applied to delete chimaeric reading frames and duplicated (redundant) genes but produced complex genomic rearrangements due to the absence of non-homologous end-joining. Here we report the targeted deletion of a conserved mitochondrial gene, nad9, encoding a subunit of respiratory complex I. By generating a large number of TALEN-mediated mitochondrial deletion lines, we isolated, in addition to mutants with rearranged genomes, homochondriomic mutants harbouring clean nad9 deletions. Characterization of the knockout plants revealed impaired complex I biogenesis, male sterility and defects in leaf and flower development. We show that these defects can be restored by expressing a functional Nad9 protein from the nuclear genome, thus creating a synthetic cytoplasmic male sterility system. Our data (1) demonstrate the feasibility of using genome editing to study mitochondrial gene functions by reverse genetics, (2) highlight the role of complex I in plant development and (3) provide proof-of-concept for the construction of synthetic cytoplasmic male sterility systems for hybrid breeding by genome editing.
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Affiliation(s)
- Joachim Forner
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm, Germany
| | - Dennis Kleinschmidt
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm, Germany
| | - Etienne H Meyer
- Institut für Pflanzenphysiologie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany
| | - Jürgen Gremmels
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm, Germany
| | - Robert Morbitzer
- ZMBP, Allgemeine Genetik, Universität Tübingen, Tübingen, Germany
| | - Thomas Lahaye
- ZMBP, Allgemeine Genetik, Universität Tübingen, Tübingen, Germany
| | - Mark A Schöttler
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm, Germany
| | - Ralph Bock
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm, Germany.
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3
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Röhricht H, Przybyla-Toscano J, Forner J, Boussardon C, Keech O, Rouhier N, Meyer EH. Mitochondrial ferredoxin-like is essential for forming complex I-containing supercomplexes in Arabidopsis. PLANT PHYSIOLOGY 2023; 191:2170-2184. [PMID: 36695030 PMCID: PMC10069907 DOI: 10.1093/plphys/kiad040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 01/11/2023] [Indexed: 06/02/2023]
Abstract
In eukaryotes, mitochondrial ATP is mainly produced by the oxidative phosphorylation (OXPHOS) system, which is composed of 5 multiprotein complexes (complexes I-V). Analyses of the OXPHOS system by native gel electrophoresis have revealed an organization of OXPHOS complexes into supercomplexes, but their roles and assembly pathways remain unclear. In this study, we characterized an atypical mitochondrial ferredoxin (mitochondrial ferredoxin-like, mFDX-like). This protein was previously found to be part of the bridge domain linking the matrix and membrane arms of the complex I. Phylogenetic analysis suggested that the Arabidopsis (Arabidopsis thaliana) mFDX-like evolved from classical mitochondrial ferredoxins (mFDXs) but lost one of the cysteines required for the coordination of the iron-sulfur (Fe-S) cluster, supposedly essential for the electron transfer function of FDXs. Accordingly, our biochemical study showed that AtmFDX-like does not bind an Fe-S cluster and is therefore unlikely to be involved in electron transfer reactions. To study the function of mFDX-like, we created deletion lines in Arabidopsis using a CRISPR/Cas9-based strategy. These lines did not show any abnormal phenotype under standard growth conditions. However, the characterization of the OXPHOS system demonstrated that mFDX-like is important for the assembly of complex I and essential for the formation of complex I-containing supercomplexes. We propose that mFDX-like and the bridge domain are required for the correct conformation of the membrane arm of complex I that is essential for the association of complex I with complex III2 to form supercomplexes.
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Affiliation(s)
| | - Jonathan Przybyla-Toscano
- Present address: Laboratoire Physiologie Cellulaire & Végétale, Institut de Recherche Interdisciplinaire de Grenoble, Université Grenoble Alpes, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Commissariat à l’Energie Atomique et aux Energie Alternatives, Centre National de la Recherche Scientifique, F-38000 Grenoble, France
| | - Joachim Forner
- Department of Organelle Biology, Biotechnology and Molecular Ecophysiology, Max-Planck-Institute of Molecular Plant Physiology, D-14476 Potsdam-Golm, Germany
| | - Clément Boussardon
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, S-90187 Umeå, Sweden
| | - Olivier Keech
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, S-90187 Umeå, Sweden
| | - Nicolas Rouhier
- Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Interactions Arbres-Microorganismes (IAM), Université de Lorraine, F-54000 Nancy, France
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4
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Mitochondrial Complex I Disruption Causes Broad Reorchestration of Plant Lipidome Including Chloroplast Lipids. Int J Mol Sci 2022; 24:ijms24010453. [PMID: 36613895 PMCID: PMC9820630 DOI: 10.3390/ijms24010453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/28/2022] [Accepted: 12/09/2022] [Indexed: 12/29/2022] Open
Abstract
Mitochondrial complex I (CI) plays a crucial role in oxidising NADH generated by the metabolism (including photorespiration) and thereby participates in the mitochondrial electron transfer chain feeding oxidative phosphorylation that generates ATP. However, CI mutations are not lethal in plants and cause moderate phenotypes, and therefore CI mutants are instrumental to examine consequences of mitochondrial homeostasis disturbance on plant cell metabolisms and signalling. To date, the consequences of CI disruption on the lipidome have not been examined. Yet, in principle, mitochondrial dysfunction should impact on lipid synthesis through chloroplasts (via changes in photorespiration, redox homeostasis, and N metabolism) and the endoplasmic reticulum (ER) (via perturbed mitochondrion-ER crosstalk). Here, we took advantage of lipidomics technology (by LC-MS), phospholipid quantitation by 31P-NMR, and total lipid quantitation to assess the impact of CI disruption on leaf, pollen, and seed lipids using three well-characterised CI mutants: CMSII in N. sylvestris and both ndufs4 and ndufs8 in Arabidopsis. Our results show multiple changes in cellular lipids, including galactolipids (chloroplastic), sphingolipids, and ceramides (synthesised by ER), suggesting that mitochondrial homeostasis is essential for the regulation of whole cellular lipidome via specific signalling pathways. In particular, the observed modifications in phospholipid and sphingolipid/ceramide molecular species suggest that CI activity controls phosphatidic acid-mediated signalling.
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Lin WC, Chen YH, Gu SY, Shen HL, Huang KC, Lin WD, Chang MC, Chang IF, Hong CY, Cheng WH. CFM6 is an Essential CRM Protein Required for the Splicing of nad5 Transcript in Arabidopsis Mitochondria. PLANT & CELL PHYSIOLOGY 2022; 63:217-233. [PMID: 34752612 DOI: 10.1093/pcp/pcab161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 05/21/2023]
Abstract
Plant chloroplast RNA splicing and ribosome maturation (CRM)-domain-containing proteins are capable of binding RNA to facilitate the splicing of group I or II introns in chloroplasts, but their functions in mitochondria are less clear. In the present study, Arabidopsis thaliana CFM6, a protein with a single CRM domain, was expressed in most plant tissues, particularly in flower tissues, and restricted to mitochondria. Mutation of CFM6 causes severe growth defects, including stunted growth, curled leaves, delayed embryogenesis and pollen development. CFM6 functions specifically in the splicing of group II intron 4 of nad5, which encodes a subunit of mitochondrial complex I, as evidenced by the loss of nad5 intron 4 splicing and high accumulation of its pretranscripts in cfm6 mutants. The phenotypic and splicing defects of cfm6 were rescued in transgenic plants overexpressing 35S::CFM6-YFP. Splicing failure in cfm6 also led to the loss of complex I activity and to its improper assembly. Moreover, dysfunction of complex I induced the expression of proteins or genes involved in alternative respiratory pathways in cfm6. Collectively, CFM6, a previously uncharacterized CRM domain-containing protein, is specifically involved in the cis-splicing of nad5 intron 4 and plays a pivotal role in mitochondrial complex I biogenesis and normal plant growth.
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Affiliation(s)
- Wei-Chih Lin
- Institute of Plant and Microbial Biology, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei 115, Taiwan
- Institute of Plant Biology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Ya-Huei Chen
- Institute of Plant and Microbial Biology, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei 115, Taiwan
- Graduate Institute of Life Sciences, National Defense Medical Center, No.161, Sec. 6, Minquan E. Rd., Neihu Dist., Taipei 114, Taiwan
| | - Shin-Yuan Gu
- Institute of Plant and Microbial Biology, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei 115, Taiwan
| | - Hwei-Ling Shen
- Institute of Plant and Microbial Biology, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei 115, Taiwan
| | - Kai-Chau Huang
- Institute of Plant and Microbial Biology, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei 115, Taiwan
| | - Wen-Dar Lin
- Institute of Plant and Microbial Biology, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei 115, Taiwan
| | - Men-Chi Chang
- Department of Agronomy, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Ing-Feng Chang
- Institute of Plant Biology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Chwan-Yang Hong
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Wan-Hsing Cheng
- Institute of Plant and Microbial Biology, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei 115, Taiwan
- Institute of Plant Biology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
- Graduate Institute of Life Sciences, National Defense Medical Center, No.161, Sec. 6, Minquan E. Rd., Neihu Dist., Taipei 114, Taiwan
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6
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Kim HJ, Kato N, Ndathe R, Thyssen GN, Jones DC, Ratnayaka HH. Evidence for thermosensitivity of the cotton (Gossypium hirsutum L.) immature fiber (im) mutant via hypersensitive stomatal activity. PLoS One 2021; 16:e0259562. [PMID: 34898615 PMCID: PMC8668099 DOI: 10.1371/journal.pone.0259562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 10/22/2021] [Indexed: 11/18/2022] Open
Abstract
Thickness of cotton fiber, referred to as fiber maturity, is a key determinant of fiber quality, lint yield, and textile performance. The cotton immature fiber (im) mutant has been used to study fiber maturity since its fiber is thinner than the wild type near isogeneic line (NIL), Texas Marker-1 (TM-1). The im phenotype is caused by a single recessive mutation of a pentatricopeptide repeat (PPR) gene that reduces the activity of mitochondrial complex I and up-regulates stress responsive genes. However, the mechanisms altering the stress responses in im mutant are not well understood. Thus, we characterized growth and gas exchange in im and TM-1 under no stress and also investigated their stress responses by comparing gas exchange and transcriptomic profiles under high temperature. Phenotypic differences were detected between the NILs in non-fiber tissues although less pronounced than the variation in fibers. At near optimum temperature (28±3°C), im maintained the same photosynthetic performance as TM-1 by means of greater stomatal conductance. In contrast, under high temperature stress (>34°C), im leaves reduced photosynthesis by decreasing the stomatal conductance disproportionately more than TM-1. Transcriptomic analyses showed that the genes involved in heat stress responses were differentially expressed between the NIL leaves. These results indicate that the im mutant previously reported to have low activity of mitochondrial complex I displays increased thermosensitivity by impacting stomatal conductance. They also support a notion that mitochondrial complex I activity is required for maintenance of optimal photosynthetic performance and acclimation of plants to high temperature stress. These findings may be useful in the future efforts to understand how physiological mechanisms play a role in determining cotton fiber maturity and may influence stress responses in other crops.
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Affiliation(s)
- Hee Jin Kim
- USDA-ARS, Southern Regional Research Center, Cotton Fiber Bioscience Research Unit, New Orleans, LA, United States of America
- * E-mail: (HJK); (HHR)
| | - Naohiro Kato
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States of America
| | - Ruth Ndathe
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States of America
| | - Gregory N. Thyssen
- USDA-ARS, Southern Regional Research Center, Cotton Fiber Bioscience Research Unit, New Orleans, LA, United States of America
| | - Don C. Jones
- Cotton Incorporated, Cary, NC, United States of America
| | - Harish H. Ratnayaka
- Department of Biology, Xavier University of Louisiana, New Orleans, LA, United States of America
- * E-mail: (HJK); (HHR)
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7
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Bentolila S, Gipson AB, Kehl AJ, Hamm LN, Hayes ML, Mulligan RM, Hanson MR. A RanBP2-type zinc finger protein functions in intron splicing in Arabidopsis mitochondria and is involved in the biogenesis of respiratory complex I. Nucleic Acids Res 2021; 49:3490-3506. [PMID: 33660772 PMCID: PMC8034646 DOI: 10.1093/nar/gkab066] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/22/2021] [Accepted: 02/25/2021] [Indexed: 11/14/2022] Open
Abstract
The RanBP2 zinc finger (Znf) domain is a prevalent domain that mediates protein interaction and RNA binding. In Arabidopsis, a clade of four RanBP2 Znf-containing proteins, named the Organelle Zinc (OZ) finger family, are known or predicted to be targeted to either the mitochondria or the plastids. Previously we reported that OZ1 is absolutely required for the editing of 14 sites in chloroplasts. We now have investigated the function of OZ2, whose null mutation is embryo lethal. We rescued the null mutant by expressing wild-type OZ2 under the control of the seed-specific ABSCISIC ACID-INSENSITIVE3 (ABI3) promoter. Rescued mutant plants exhibit severely delayed development and a distinctive morphological phenotype. Genetic and biochemical analyses demonstrated that OZ2 promotes the splicing of transcripts of several mitochondrial nad genes and rps3. The splicing defect of nad transcripts results in the destabilization of complex I, which in turn affects the respiratory ability of oz2 mutants, turning on the alternative respiratory pathway, and impacting the plant development. Protein-protein interaction assays demonstrated binding of OZ2 to several known mitochondrial splicing factors targeting the same splicing events. These findings extend the known functional repertoire of the RanBP2 zinc finger domain in nuclear splicing to include plant organelle splicing.
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Affiliation(s)
- Stéphane Bentolila
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
| | - Andrew B Gipson
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
| | - Alexander J Kehl
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
| | - Lauren N Hamm
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
| | - Michael L Hayes
- Department of Chemistry and Biochemistry, California State University Los Angeles, Los Angeles, CA 90032, USA
| | - R Michael Mulligan
- Department of Developmental and Cell Biology, University of California Irvine, Irvine, CA 90032, USA
| | - Maureen R Hanson
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
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8
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Tang D, Wei F, Khan A, Munsif F, Zhou R. Degradation of mitochondrial structure and deficiency of complex I were associated with the transgenic CMS of rice. Biol Res 2021; 54:6. [PMID: 33612118 PMCID: PMC7898427 DOI: 10.1186/s40659-020-00326-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 12/10/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mitochondria play a significant role in plant cytoplasmic male sterility (CMS). In our previous study, mitochondrial complex I genes, nad4, nad5, and nad7 showed polymorphisms between the transgenic CMS line M2BS and its wild type M2B. The sterility mechanism of the M2BS at cytological, physiological, biochemical, and molecular level is not clear. RESULTS Cytological observation showed that the anthers were light yellow, fissured, invalid in KI-I2, and full of irregularly typical abortion pollen grains in M2BS. Transmission electron microscopic (TEM) observation revealed no nucleus and degraded mitochondria with obscure cristae in anther cells of M2BS. The results of staining for H2O2 presented a large number of electron dense precipitates (edp) in intercellular space of anther cells of M2BS at anthesis. Moreover, the anther respiration rate and complex I activity of M2BS were significantly lower than those of wild type M2B during pollen development. Furthermore, RNA editing results showed only nad7 presented partially edited at 534th nucleotides. The expression of nad5 and nad7 revealed significant differences between M2B and M2BS. CONCLUSIONS Our data demonstrated that mitochondrial structural degradation and complex I deficiency might be associated with transgenic CMS of rice.
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Affiliation(s)
- Danfeng Tang
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plant, Nanning, 530023 China
- Guangxi Engineering Research Center of TCM Resource Intelligent Creation, Guangxi Botanical Garden of Medicinal Plants, Nanning, 530023 China
| | - Fan Wei
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plant, Nanning, 530023 China
- Guangxi Engineering Research Center of TCM Resource Intelligent Creation, Guangxi Botanical Garden of Medicinal Plants, Nanning, 530023 China
| | - Aziz Khan
- College of Agriculture, Guangxi University, Nanning, 530004 China
| | - Fazal Munsif
- College of Agriculture, Guangxi University, Nanning, 530004 China
| | - Ruiyang Zhou
- College of Agriculture, Guangxi University, Nanning, 530004 China
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9
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Wang Y, Selinski J, Mao C, Zhu Y, Berkowitz O, Whelan J. Linking mitochondrial and chloroplast retrograde signalling in plants. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190410. [PMID: 32362265 PMCID: PMC7209950 DOI: 10.1098/rstb.2019.0410] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Retrograde signalling refers to the regulation of nuclear gene expression in response to functional changes in organelles. In plants, the two energy-converting organelles, mitochondria and chloroplasts, are tightly coordinated to balance their activities. Although our understanding of components involved in retrograde signalling has greatly increased in the last decade, studies on the regulation of the two organelle signalling pathways have been largely independent. Thus, the mechanism of how mitochondrial and chloroplastic retrograde signals are integrated is largely unknown. Here, we summarize recent findings on the function of mitochondrial signalling components and their links to chloroplast retrograde responses. From this, a picture emerges showing that the major regulators are integrators of both organellar retrograde signalling pathways. This article is part of the theme issue 'Retrograde signalling from endosymbiotic organelles'.
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Affiliation(s)
- Yan Wang
- Department of Animal, Plant and Soil Sciences, Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
| | - Jennifer Selinski
- Department of Animal, Plant and Soil Sciences, Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
| | - Chunli Mao
- Department of Animal, Plant and Soil Sciences, Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia.,Department of Animal Science and Technology, Grassland Science, China Agricultural University, Beijing 100193, People's Republic of China
| | - Yanqiao Zhu
- Department of Animal, Plant and Soil Sciences, Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia.,Department of Animal Science and Technology, Grassland Science, China Agricultural University, Beijing 100193, People's Republic of China
| | - Oliver Berkowitz
- Department of Animal, Plant and Soil Sciences, Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
| | - James Whelan
- Department of Animal, Plant and Soil Sciences, Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
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10
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Takenaka M, Jörg A, Burger M, Haag S. RNA editing mutants as surrogates for mitochondrial SNP mutants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 135:310-321. [PMID: 30599308 DOI: 10.1016/j.plaphy.2018.12.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/13/2018] [Accepted: 12/16/2018] [Indexed: 06/09/2023]
Abstract
In terrestrial plants, RNA editing converts specific cytidines to uridines in mitochondrial and plastidic transcripts. Most of these events appear to be important for proper function of organellar encoded genes, since translated proteins from edited mRNAs show higher similarity with evolutionary conserved polypeptide sequences. So far about 100 nuclear encoded proteins have been characterized as RNA editing factors in plant organelles. Respective RNA editing mutants reduce or lose editing activity at different sites and display various macroscopic phenotypes from pale or albino in the case of chloroplasts to growth retardation or even embryonic lethality. Therefore, RNA editing mutants can be a useful resource of surrogate mutants for organellar encoded genes, especially for mitochondrially encoded genes that it is so far unfeasible to manipulate. However, connections between RNA editing defects and observed phenotypes in the mutants are often hard to elucidate, since RNA editing factors often target multiple RNA sites in different genes simultaneously. In this review article, we summarize the physiological aspects of respective RNA editing mutants and discuss them as surrogate mutants for functional analysis of mitochondrially encoded genes.
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Affiliation(s)
- Mizuki Takenaka
- Department of Botany, Graduate School of Science, Kyoto University, Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan.
| | - Anja Jörg
- Molekulare Botanik, Universität Ulm, Albert-Einstein-Allee 11, 89069, Ulm, Germany
| | - Matthias Burger
- Molekulare Botanik, Universität Ulm, Albert-Einstein-Allee 11, 89069, Ulm, Germany
| | - Sascha Haag
- Molekulare Botanik, Universität Ulm, Albert-Einstein-Allee 11, 89069, Ulm, Germany
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11
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Lothier J, De Paepe R, Tcherkez G. Mitochondrial complex I dysfunction increases CO 2 efflux and reconfigures metabolic fluxes of day respiration in tobacco leaves. THE NEW PHYTOLOGIST 2019; 221:750-763. [PMID: 30133747 DOI: 10.1111/nph.15393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Accepted: 07/15/2018] [Indexed: 06/08/2023]
Abstract
Mutants affected in complex I are useful to understand the role played by mitochondrial electron transport and redox metabolism in cellular homeostasis and signaling. However, their respiratory phenotype is incompletely described and a specific examination of day respiration (Rd ) is lacking. Here, we used isotopic methods and metabolomics to investigate the impact of complex I dysfunction on Rd in two respiratory mutants of forest tobacco (Nicotiana sylvestris): cytoplasmic male sterile II (CMSII) and nuclear male sterile 1 (NMS1), previously characterized for complex I disruption. Rd was higher in mutants and the inhibition of leaf respiration by light was lower. Higher Rd values were caused by increased (phosphoenol)pyruvate (PEP) metabolism at the expense of anaplerotic (PEP carboxylase (PEPc) -catalyzed) activity. De novo synthesis of Krebs cycle intermediates in the light was larger in mutants than in the wild-type, although numerically small in all genotypes. Carbon metabolism in mutants involved alternative pathways, such as alanine synthesis, and an increase in amino acid production with the notable exception of aspartate. Our results show that the alteration of NADH re-oxidation activity by complex I does not cause a general inhibition of catabolism, but rather a re-orchestration of fluxes in day respiratory metabolism, leading to an increased CO2 efflux.
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Affiliation(s)
- Jérémy Lothier
- Institut de Recherche en Horticulture et Semences, UMR 1345 INRA-Université d'Angers, 42 rue Georges Morel, 49071, Beaucouzé Cedex, France
| | - Rosine De Paepe
- Institute of Plant Sciences Paris-Saclay, UMR 9213/UMR1403, Université Paris Sud, CNRS-INRA, Université d'Evry, Université Paris-Diderot, Bâtiment 630, 91405, Orsay Cedex, France
| | - Guillaume Tcherkez
- Research School of Biology, Australian National University, ANU College of Science, 2601, Canberra, ACT, Australia
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12
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Hu T, Tian Y, Zhu J, Wang Y, Jing R, Lei J, Sun Y, Yu Y, Li J, Chen X, Zhu X, Hao Y, Liu L, Wang Y, Wan J. OsNDUFA9 encoding a mitochondrial complex I subunit is essential for embryo development and starch synthesis in rice. PLANT CELL REPORTS 2018; 37:1667-1679. [PMID: 30151559 DOI: 10.1007/s00299-018-2338-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 08/22/2018] [Indexed: 05/23/2023]
Abstract
Loss of function of a mitochondrial complex I subunit (OsNDUFA9) causes abnormal embryo development and affects starch synthesis by altering the expression of starch synthesis-related genes and proteins. Proton-pumping NADH: ubiquinone oxidoreductase (also called complex I) is thought to be the largest and most complicated enzyme of the mitochondrial respiratory chain. Mutations of complex I subunits have been revealed to link with a number of growth inhibitions in plants. However, the function of complex I subunits in rice remains unclear. Here, we isolated a rice floury endosperm mutant (named flo13) that was embryonic lethal and failed to germinate. Semi-thin sectioning analysis showed that compound starch grain development in the mutant was greatly impaired, leading to significantly compromised starch biosynthesis and decreased 1000-grain weight relative to the wild type. Map-based cloning revealed that FLO13 encodes an accessory subunit of complex I protein (designated as OsNDUFA9). A single nucleotide substitution (G18A) occurred in the first exon of OsNDUFA9, introducing a premature stop codon in the flo13 mutant gene. OsNDUFA9 was ubiquitously expressed in various tissues and the OsNDUFA9 protein was localized to the mitochondria. Quantitative RT-PCR and protein blotting indicated loss of function of OsNDUFA9 altered gene expression and protein accumulation associated with respiratory electron chain complex in the mitochondria. Moreover, transmission electron microscopic analysis showed that the mutant lacked obvious mitochondrial cristae structure in the mitochondria of endosperm cell. Our results demonstrate that the OsNDUFA9 subunit of complex I is essential for embryo development and starch synthesis in rice endosperm.
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Affiliation(s)
- Tingting Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
- Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai Area, Xuzhou, 221131, China
| | - Yunlu Tian
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jianping Zhu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yunlong Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ruonan Jing
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jie Lei
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yinglun Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yanfang Yu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jingfang Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoli Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaopin Zhu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuanyuan Hao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Linglong Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yihua Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Jianmin Wan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China.
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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13
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Podgórska A, Ostaszewska-Bugajska M, Tarnowska A, Burian M, Borysiuk K, Gardeström P, Szal B. Nitrogen Source Dependent Changes in Central Sugar Metabolism Maintain Cell Wall Assembly in Mitochondrial Complex I-Defective frostbite1 and Secondarily Affect Programmed Cell Death. Int J Mol Sci 2018; 19:ijms19082206. [PMID: 30060552 PMCID: PMC6121878 DOI: 10.3390/ijms19082206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/20/2018] [Accepted: 07/24/2018] [Indexed: 12/13/2022] Open
Abstract
For optimal plant growth, carbon and nitrogen availability needs to be tightly coordinated. Mitochondrial perturbations related to a defect in complex I in the Arabidopsis thalianafrostbite1 (fro1) mutant, carrying a point mutation in the 8-kD Fe-S subunit of NDUFS4 protein, alter aspects of fundamental carbon metabolism, which is manifested as stunted growth. During nitrate nutrition, fro1 plants showed a dominant sugar flux toward nitrogen assimilation and energy production, whereas cellulose integration in the cell wall was restricted. However, when cultured on NH4+ as the sole nitrogen source, which typically induces developmental disorders in plants (i.e., the ammonium toxicity syndrome), fro1 showed improved growth as compared to NO3− nourishing. Higher energy availability in fro1 plants was correlated with restored cell wall assembly during NH4+ growth. To determine the relationship between mitochondrial complex I disassembly and cell wall-related processes, aspects of cell wall integrity and sugar and reactive oxygen species signaling were analyzed in fro1 plants. The responses of fro1 plants to NH4+ treatment were consistent with the inhibition of a form of programmed cell death. Resistance of fro1 plants to NH4+ toxicity coincided with an absence of necrotic lesion in plant leaves.
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Affiliation(s)
- Anna Podgórska
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, I. Miecznikowa 1, 02-096 Warsaw, Poland.
| | - Monika Ostaszewska-Bugajska
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, I. Miecznikowa 1, 02-096 Warsaw, Poland.
| | - Agata Tarnowska
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, I. Miecznikowa 1, 02-096 Warsaw, Poland.
| | - Maria Burian
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, I. Miecznikowa 1, 02-096 Warsaw, Poland.
| | - Klaudia Borysiuk
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, I. Miecznikowa 1, 02-096 Warsaw, Poland.
| | - Per Gardeström
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, SE-90187 Umeå, Sweden, .
| | - Bożena Szal
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, I. Miecznikowa 1, 02-096 Warsaw, Poland.
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14
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Gupta KJ, Kumari A, Florez-Sarasa I, Fernie AR, Igamberdiev AU. Interaction of nitric oxide with the components of the plant mitochondrial electron transport chain. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:3413-3424. [PMID: 29590433 DOI: 10.1093/jxb/ery119] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 03/20/2018] [Indexed: 05/03/2023]
Abstract
Mitochondria are not only major sites for energy production but also participate in several alternative functions, among these generation of nitric oxide (NO), and its different impacts on this organelle, is receiving increasing attention. The inner mitochondrial membrane contains the chain of protein complexes, and electron transfer via oxidation of various organic acids and reducing equivalents leads to generation of a proton gradient that results in energy production. Recent evidence suggests that these complexes are sources and targets for NO. Complex I and rotenone-insensitive NAD(P)H dehydrogenases regulate hypoxic NO production, while complex I also participates in the formation of a supercomplex with complex III under hypoxia. Complex II is a target for NO which, by inhibiting Fe-S centres, regulates reactive oxygen species (ROS) generation. Complex III is one of the major sites for NO production, and the produced NO participates in the phytoglobin-NO cycle that leads to the maintenance of the redox level and limited energy production under hypoxia. Expression of the alternative oxidase (AOX) is induced by NO under various stress conditions, and evidence exists that AOX can regulate mitochondrial NO production. Complex IV is another major site for NO production, which can also be linked to ATP generation via the phytoglobin-NO cycle. Inhibition of complex IV by NO can prevent oxygen depletion at the frontier of anoxia. The NO production and action on various complexes play a major role in NO signalling and energy metabolism.
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Affiliation(s)
| | - Aprajita Kumari
- National Institute for Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Igor Florez-Sarasa
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, Barcelona, Spain
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Abir U Igamberdiev
- Department of Biology, Memorial University of Newfoundland, St. John's, NL, A1B, Canada
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15
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Senkler J, Rugen N, Eubel H, Hegermann J, Braun HP. Absence of Complex I Implicates Rearrangement of the Respiratory Chain in European Mistletoe. Curr Biol 2018; 28:1606-1613.e4. [PMID: 29731306 DOI: 10.1016/j.cub.2018.03.050] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/31/2018] [Accepted: 03/21/2018] [Indexed: 01/06/2023]
Abstract
The mitochondrial oxidative phosphorylation (OXPHOS) system, which is based on the presence of five protein complexes, is in the very center of cellular ATP production. Complexes I to IV are components of the respiratory electron transport chain that drives proton translocation across the inner mitochondrial membrane. The resulting proton gradient is used by complex V (the ATP synthase complex) for the phosphorylation of ADP. Occurrence of complexes I to V is highly conserved in eukaryotes, with exceptions being restricted to unicellular parasites that take up energy-rich compounds from their hosts. Here we present biochemical evidence that the European mistletoe (Viscum album), an obligate semi-parasite living on branches of trees, has a highly unusual OXPHOS system. V. album mitochondria completely lack complex I and have greatly reduced amounts of complexes II and V. At the same time, the complexes III and IV form remarkably stable respiratory supercomplexes. Furthermore, complexome profiling revealed the presence of 150 kDa complexes that include type II NAD(P)H dehydrogenases and an alternative oxidase. Although the absence of complex I genes in mitochondrial genomes of mistletoe species has recently been reported, this is the first biochemical proof that these genes have not been transferred to the nuclear genome and that this respiratory complex indeed is not assembled. As a consequence, the whole respiratory chain is remodeled. Our results demonstrate that, in the context of parasitism, multicellular life can cope with lack of one of the OXPHOS complexes and give new insights into the life strategy of mistletoe species.
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Affiliation(s)
- Jennifer Senkler
- Institut für Pflanzengenetik, Leibniz Universität Hannover, Herrenhäuser Straße 2, 30419 Hannover, Germany
| | - Nils Rugen
- Institut für Pflanzengenetik, Leibniz Universität Hannover, Herrenhäuser Straße 2, 30419 Hannover, Germany
| | - Holger Eubel
- Institut für Pflanzengenetik, Leibniz Universität Hannover, Herrenhäuser Straße 2, 30419 Hannover, Germany
| | - Jan Hegermann
- Institut für Funktionelle und Angewandte Anatomie, Medizinische Hochschule Hannover, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
| | - Hans-Peter Braun
- Institut für Pflanzengenetik, Leibniz Universität Hannover, Herrenhäuser Straße 2, 30419 Hannover, Germany.
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16
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Ren X, Pan Z, Zhao H, Zhao J, Cai M, Li J, Zhang Z, Qiu F. EMPTY PERICARP11 serves as a factor for splicing of mitochondrial nad1 intron and is required to ensure proper seed development in maize. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:4571-4581. [PMID: 28981788 PMCID: PMC5853838 DOI: 10.1093/jxb/erx212] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 06/02/2017] [Indexed: 05/20/2023]
Abstract
Group II introns are common in the mitochondrial genome of higher plant species. The splicing of these introns is a complex process involving the synergistic action of multiple factors. However, few of these factors have been characterized in maize. In this study, we found that the Empty pericarp11 (Emp11) gene, which encodes a P-type pentatricopeptide repeat (PPR) protein, is required for the development of maize seeds. The loss of Emp11 function seriously impairs embryo and endosperm development, resulting in empty pericarp seeds in maize, and alteration in Emp11 expression leads to quantitative variation in kernel size and weight. We found that the emp11 mutants showed a failure in nad1 intron splicing, exhibited a severe reduction in complex I assembly and activity, mitochondrial structure disturbances, and an increase in alternative oxidase AOX2 and AOX3 levels. Interestingly, the emp11 phenotype was very severe in the W22 inbred line but could be partially recovered in B73 BC2F2 segregating ears. These results suggest that EMP11 serves as a factor for the splicing of mitochondrial nad1 introns and is required for mitochondrial function to ensure proper seed development in maize.
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Affiliation(s)
- Xuemei Ren
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, P.R. China
| | - Zhenyuan Pan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, P.R. China
| | - Hailiang Zhao
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, P.R. China
| | - Junli Zhao
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, P.R. China
| | - Manjun Cai
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, P.R. China
| | - Jiang Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, P.R. China
| | - Zuxin Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, P.R. China
- Correspondence: ,
| | - Fazhan Qiu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, P.R. China
- Correspondence: ,
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17
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Lee K, Han JH, Park YI, Colas des Francs-Small C, Small I, Kang H. The mitochondrial pentatricopeptide repeat protein PPR19 is involved in the stabilization of NADH dehydrogenase 1 transcripts and is crucial for mitochondrial function and Arabidopsis thaliana development. THE NEW PHYTOLOGIST 2017; 215:202-216. [PMID: 28332713 DOI: 10.1111/nph.14528] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/19/2017] [Indexed: 05/06/2023]
Abstract
Despite the importance of pentatricopeptide repeat (PPR) proteins in organellar RNA metabolism and plant development, the functions of many PPR proteins remain unknown. Here, we determined the role of a mitochondrial PPR protein (At1g52620) comprising 19 PPR motifs, thus named PPR19, in Arabidopsis thaliana. The ppr19 mutant displayed abnormal seed development, reduced seed yield, delayed seed germination, and retarded growth, indicating that PPR19 is indispensable for normal growth and development of Arabidopsis thaliana. Splicing pattern analysis of mitochondrial genes revealed that PPR19 specifically binds to the specific sequence in the 3'-terminus of the NADH dehydrogenase 1 (nad1) transcript and stabilizes transcripts containing the second and third exons of nad1. Loss of these transcripts in ppr19 leads to multiple secondary effects on accumulation and splicing of other nad1 transcripts, from which we can infer the order in which cis- and trans-spliced nad1 transcripts are normally processed. Improper splicing of nad1 transcripts leads to the absence of mitochondrial complex I and alteration of the nuclear transcriptome, notably influencing the alternative splicing of a variety of nuclear genes. Our results indicate that the mitochondrial PPR19 is an essential component in the splicing of nad1 transcripts, which is crucial for mitochondrial function and plant development.
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Affiliation(s)
- Kwanuk Lee
- Department of Plant Biotechnology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Korea
| | - Ji Hoon Han
- Department of Plant Biotechnology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Korea
| | - Youn-Il Park
- Department of Biological Sciences, Chungnam National University, Daejeon, 306-764, Korea
| | - Catherine Colas des Francs-Small
- ARC Centre of Excellence in Plant Energy Biology, University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
| | - Ian Small
- ARC Centre of Excellence in Plant Energy Biology, University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
| | - Hunseung Kang
- Department of Plant Biotechnology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Korea
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18
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Pétriacq P, de Bont L, Genestout L, Hao J, Laureau C, Florez-Sarasa I, Rzigui T, Queval G, Gilard F, Mauve C, Guérard F, Lamothe-Sibold M, Marion J, Fresneau C, Brown S, Danon A, Krieger-Liszkay A, Berthomé R, Ribas-Carbo M, Tcherkez G, Cornic G, Pineau B, Gakière B, De Paepe R. Photoperiod Affects the Phenotype of Mitochondrial Complex I Mutants. PLANT PHYSIOLOGY 2017; 173:434-455. [PMID: 27852950 PMCID: PMC5210746 DOI: 10.1104/pp.16.01484] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 11/16/2016] [Indexed: 05/07/2023]
Abstract
Plant mutants for genes encoding subunits of mitochondrial complex I (CI; NADH:ubiquinone oxidoreductase), the first enzyme of the respiratory chain, display various phenotypes depending on growth conditions. Here, we examined the impact of photoperiod, a major environmental factor controlling plant development, on two Arabidopsis (Arabidopsis thaliana) CI mutants: a new insertion mutant interrupted in both ndufs8.1 and ndufs8.2 genes encoding the NDUFS8 subunit and the previously characterized ndufs4 CI mutant. In the long day (LD) condition, both ndufs8.1 and ndufs8.2 single mutants were indistinguishable from Columbia-0 at phenotypic and biochemical levels, whereas the ndufs8.1 ndufs8.2 double mutant was devoid of detectable holo-CI assembly/activity, showed higher alternative oxidase content/activity, and displayed a growth retardation phenotype similar to that of the ndufs4 mutant. Although growth was more affected in ndufs4 than in ndufs8.1 ndufs8.2 under the short day (SD) condition, both mutants displayed a similar impairment of growth acceleration after transfer to LD compared with the wild type. Untargeted and targeted metabolomics showed that overall metabolism was less responsive to the SD-to-LD transition in mutants than in the wild type. The typical LD acclimation of carbon and nitrogen assimilation as well as redox-related parameters was not observed in ndufs8.1 ndufs8 Similarly, NAD(H) content, which was higher in the SD condition in both mutants than in Columbia-0, did not adjust under LD We propose that altered redox homeostasis and NAD(H) content/redox state control the phenotype of CI mutants and photoperiod acclimation in Arabidopsis.
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Affiliation(s)
- Pierre Pétriacq
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Linda de Bont
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Lucie Genestout
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Jingfang Hao
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Constance Laureau
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Igor Florez-Sarasa
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Touhami Rzigui
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Guillaume Queval
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Françoise Gilard
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Caroline Mauve
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Florence Guérard
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Marlène Lamothe-Sibold
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Jessica Marion
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Chantal Fresneau
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Spencer Brown
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Antoine Danon
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Anja Krieger-Liszkay
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Richard Berthomé
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Miquel Ribas-Carbo
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Guillaume Tcherkez
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Gabriel Cornic
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Bernard Pineau
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Bertrand Gakière
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.);
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.);
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.);
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.);
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.);
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.);
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.);
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
| | - Rosine De Paepe
- Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (P.P., L.d.B., L.G., J.H., G.Q., A.D., B.P., B.G., R.D.P.)
- Ecologie, Systématique et Evolution, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91405 Orsay cedex, France (C.L., T.R., C.F., G.C.)
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 7122 Palma de Mallorca, Spain (I.F.-S., M.R.-C.)
- Plateforme Métabolisme Métabolome, Institute of Plant Sciences Paris-Saclay, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université Evry, Université Paris-Diderot, Université Paris-Saclay, 91405 Orsay, France (F.Gi., C.M., F.Gu., M.L.-S., B.G.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Gif, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette cedex, France (J.M., S.B.)
- Institute for Integrative Biology of the Cell, Centre National de la Recherche Scientifique, Commissariat à l'Energie Atomique, Université Paris-Sud, Université Paris-Saclay, Campus de Saclay, Commissariat à l'Energie Atomique Saclay, 91191 Gif-sur-Yvette cedex, France (A.K.-L.)
- Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Institut National de la Recherche Agronomique 441/Centre National de la Recherche Scientifique 2594, 31326 Castanet Tolosan cedex, France (R.B.)
- Research School of Biology, College of Medicine, Biology, and Environment, Australian National University, Canberra, Australian Capital Territory 2601, Australia (G.T.); and
- biOMICS Facility, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom S10 2TN (P.P.)
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Abadie C, Carroll A, Tcherkez G. Interactions Between Day Respiration, Photorespiration, and N and S Assimilation in Leaves. ADVANCES IN PHOTOSYNTHESIS AND RESPIRATION 2017. [DOI: 10.1007/978-3-319-68703-2_1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Tracking the Orchestration of the Tricarboxylic Acid Pathway in Plants, 80 Years After the Discovery of the Krebs Cycle. ADVANCES IN PHOTOSYNTHESIS AND RESPIRATION 2017. [DOI: 10.1007/978-3-319-68703-2_14] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Jacoby RP, Millar AH, Taylor NL. Opportunities for wheat proteomics to discover the biomarkers for respiration-dependent biomass production, stress tolerance and cytoplasmic male sterility. J Proteomics 2016; 143:36-44. [DOI: 10.1016/j.jprot.2016.02.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/10/2016] [Accepted: 02/17/2016] [Indexed: 01/23/2023]
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Subrahmanian N, Remacle C, Hamel PP. Plant mitochondrial Complex I composition and assembly: A review. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2016; 1857:1001-14. [PMID: 26801215 DOI: 10.1016/j.bbabio.2016.01.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/18/2016] [Accepted: 01/18/2016] [Indexed: 12/31/2022]
Abstract
In the mitochondrial inner membrane, oxidative phosphorylation generates ATP via the operation of several multimeric enzymes. The proton-pumping Complex I (NADH:ubiquinone oxidoreductase) is the first and most complicated enzyme required in this process. Complex I is an L-shaped enzyme consisting of more than 40 subunits, one FMN molecule and eight Fe-S clusters. In recent years, genetic and proteomic analyses of Complex I mutants in various model systems, including plants, have provided valuable insights into the assembly of this multimeric enzyme. Assisted by a number of key players, referred to as "assembly factors", the assembly of Complex I takes place in a sequential and modular manner. Although a number of factors have been identified, their precise function in mediating Complex I assembly still remains to be elucidated. This review summarizes our current knowledge of plant Complex I composition and assembly derived from studies in plant model systems such as Arabidopsis thaliana and Chlamydomonas reinhardtii. Plant Complex I is highly conserved and comprises a significant number of subunits also present in mammalian and fungal Complexes I. Plant Complex I also contains additional subunits absent from the mammalian and fungal counterpart, whose function in enzyme activity and assembly is not clearly understood. While 14 assembly factors have been identified for human Complex I, only two proteins, namely GLDH and INDH, have been established as bona fide assembly factors for plant Complex I. This article is part of a Special Issue entitled Respiratory complex I, edited by Volker Zickermann and Ulrich Brandt.
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Affiliation(s)
- Nitya Subrahmanian
- The Ohio State University, Department of Molecular Genetics, 500 Aronoff Laboratory, 318 W. 12th Avenue, Columbus, OH 43210, USA
| | - Claire Remacle
- Institute of Botany, Department of Life Sciences, University of Liège, 4000 Liège, Belgium
| | - Patrice Paul Hamel
- The Ohio State University, Department of Molecular Genetics, 500 Aronoff Laboratory, 318 W. 12th Avenue, Columbus, OH 43210, USA; The Ohio State University, Department of Biological Chemistry and Pharmacology, 500 Aronoff Laboratory, 318 W. 12th Avenue, Columbus, OH 43210, USA.
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Haïli N, Planchard N, Arnal N, Quadrado M, Vrielynck N, Dahan J, des Francs-Small CC, Mireau H. The MTL1 Pentatricopeptide Repeat Protein Is Required for Both Translation and Splicing of the Mitochondrial NADH DEHYDROGENASE SUBUNIT7 mRNA in Arabidopsis. PLANT PHYSIOLOGY 2016; 170:354-66. [PMID: 26537562 PMCID: PMC4704600 DOI: 10.1104/pp.15.01591] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 11/03/2015] [Indexed: 05/18/2023]
Abstract
Mitochondrial translation involves a complex interplay of ancient bacteria-like features and host-derived functionalities. Although the basic components of the mitochondrial translation apparatus have been recognized, very few protein factors aiding in recruiting ribosomes on mitochondria-encoded messenger RNA (mRNAs) have been identified in higher plants. In this study, we describe the identification of the Arabidopsis (Arabidopsis thaliana) MITOCHONDRIAL TRANSLATION FACTOR1 (MTL1) protein, a new member of the Pentatricopeptide Repeat family, and show that it is essential for the translation of the mitochondrial NADH dehydrogenase subunit7 (nad7) mRNA. We demonstrate that mtl1 mutant plants fail to accumulate the Nad7 protein, even though the nad7 mature mRNA is produced and bears the same 5' and 3' extremities as in wild-type plants. We next observed that polysome association of nad7 mature mRNA is specifically disrupted in mtl1 mutants, indicating that the absence of Nad7 results from a lack of translation of nad7 mRNA. These findings illustrate that mitochondrial translation requires the intervention of gene-specific nucleus-encoded PPR trans-factors and that their action does not necessarily involve the 5' processing of their target mRNA, as observed previously. Interestingly, a partial decrease in nad7 intron 2 splicing was also detected in mtl1 mutants, suggesting that MTL1 is also involved in group II intron splicing. However, this second function appears to be less essential for nad7 expression than its role in translation. MTL1 will be instrumental to understand the multifunctionality of PPR proteins and the mechanisms governing mRNA translation and intron splicing in plant mitochondria.
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Affiliation(s)
- Nawel Haïli
- Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles cedex, France (N.H., N.P., N.A., M.Q., N.V., J.D., H.M.);Université Paris-Sud, Université Paris-Saclay, 91405 Orsay cedex, France (N.H., N.P.); andAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S.)
| | - Noelya Planchard
- Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles cedex, France (N.H., N.P., N.A., M.Q., N.V., J.D., H.M.);Université Paris-Sud, Université Paris-Saclay, 91405 Orsay cedex, France (N.H., N.P.); andAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S.)
| | - Nadège Arnal
- Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles cedex, France (N.H., N.P., N.A., M.Q., N.V., J.D., H.M.);Université Paris-Sud, Université Paris-Saclay, 91405 Orsay cedex, France (N.H., N.P.); andAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S.)
| | - Martine Quadrado
- Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles cedex, France (N.H., N.P., N.A., M.Q., N.V., J.D., H.M.);Université Paris-Sud, Université Paris-Saclay, 91405 Orsay cedex, France (N.H., N.P.); andAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S.)
| | - Nathalie Vrielynck
- Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles cedex, France (N.H., N.P., N.A., M.Q., N.V., J.D., H.M.);Université Paris-Sud, Université Paris-Saclay, 91405 Orsay cedex, France (N.H., N.P.); andAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S.)
| | - Jennifer Dahan
- Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles cedex, France (N.H., N.P., N.A., M.Q., N.V., J.D., H.M.);Université Paris-Sud, Université Paris-Saclay, 91405 Orsay cedex, France (N.H., N.P.); andAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S.)
| | - Catherine Colas des Francs-Small
- Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles cedex, France (N.H., N.P., N.A., M.Q., N.V., J.D., H.M.);Université Paris-Sud, Université Paris-Saclay, 91405 Orsay cedex, France (N.H., N.P.); andAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S.)
| | - Hakim Mireau
- Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles cedex, France (N.H., N.P., N.A., M.Q., N.V., J.D., H.M.);Université Paris-Sud, Université Paris-Saclay, 91405 Orsay cedex, France (N.H., N.P.); andAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S.)
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Kühn K, Obata T, Feher K, Bock R, Fernie AR, Meyer EH. Complete Mitochondrial Complex I Deficiency Induces an Up-Regulation of Respiratory Fluxes That Is Abolished by Traces of Functional Complex I. PLANT PHYSIOLOGY 2015; 168:1537-49. [PMID: 26134164 PMCID: PMC4528760 DOI: 10.1104/pp.15.00589] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 06/26/2015] [Indexed: 05/17/2023]
Abstract
Complex I (NADH:ubiquinone oxidoreductase) is central to cellular NAD(+) recycling and accounts for approximately 40% of mitochondrial ATP production. To understand how complex I function impacts respiration and plant development, we isolated Arabidopsis (Arabidopsis thaliana) lines that lack complex I activity due to the absence of the catalytic subunit NDUFV1 (for NADH:ubiquinone oxidoreductase flavoprotein1) and compared these plants with ndufs4 (for NADH:ubiquinone oxidoreductase Fe-S protein4) mutants possessing trace amounts of complex I. Unlike ndufs4 plants, ndufv1 lines were largely unable to establish seedlings in the absence of externally supplied sucrose. Measurements of mitochondrial respiration and ATP synthesis revealed that compared with ndufv1, the complex I amounts retained by ndufs4 did not increase mitochondrial respiration and oxidative phosphorylation capacities. No major differences were seen in the mitochondrial proteomes, cellular metabolomes, or transcriptomes between ndufv1 and ndufs4. The analysis of fluxes through the respiratory pathway revealed that in ndufv1, fluxes through glycolysis and the tricarboxylic acid cycle were dramatically increased compared with ndufs4, which showed near wild-type-like fluxes. This indicates that the strong growth defects seen for plants lacking complex I originate from a switch in the metabolic mode of mitochondria and an up-regulation of respiratory fluxes. Partial reversion of these phenotypes when traces of active complex I are present suggests that complex I is essential for plant development and likely acts as a negative regulator of respiratory fluxes.
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Affiliation(s)
- Kristina Kühn
- Molekulare Zellbiologie der Pflanzen, Humboldt-Universität zu Berlin, 10115 Berlin, Germany (K.K.);Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, 67084 Strasbourg, France (K.K., E.H.M.); andMax-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (T.O., K.F., R.B., A.R.F., E.H.M.)
| | - Toshihiro Obata
- Molekulare Zellbiologie der Pflanzen, Humboldt-Universität zu Berlin, 10115 Berlin, Germany (K.K.);Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, 67084 Strasbourg, France (K.K., E.H.M.); andMax-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (T.O., K.F., R.B., A.R.F., E.H.M.)
| | - Kristen Feher
- Molekulare Zellbiologie der Pflanzen, Humboldt-Universität zu Berlin, 10115 Berlin, Germany (K.K.);Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, 67084 Strasbourg, France (K.K., E.H.M.); andMax-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (T.O., K.F., R.B., A.R.F., E.H.M.)
| | - Ralph Bock
- Molekulare Zellbiologie der Pflanzen, Humboldt-Universität zu Berlin, 10115 Berlin, Germany (K.K.);Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, 67084 Strasbourg, France (K.K., E.H.M.); andMax-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (T.O., K.F., R.B., A.R.F., E.H.M.)
| | - Alisdair R Fernie
- Molekulare Zellbiologie der Pflanzen, Humboldt-Universität zu Berlin, 10115 Berlin, Germany (K.K.);Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, 67084 Strasbourg, France (K.K., E.H.M.); andMax-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (T.O., K.F., R.B., A.R.F., E.H.M.)
| | - Etienne H Meyer
- Molekulare Zellbiologie der Pflanzen, Humboldt-Universität zu Berlin, 10115 Berlin, Germany (K.K.);Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, 67084 Strasbourg, France (K.K., E.H.M.); andMax-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (T.O., K.F., R.B., A.R.F., E.H.M.)
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25
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Skippington E, Barkman TJ, Rice DW, Palmer JD. Miniaturized mitogenome of the parasitic plant Viscum scurruloideum is extremely divergent and dynamic and has lost all nad genes. Proc Natl Acad Sci U S A 2015; 112:E3515-24. [PMID: 26100885 PMCID: PMC4500244 DOI: 10.1073/pnas.1504491112] [Citation(s) in RCA: 196] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Despite the enormous diversity among parasitic angiosperms in form and structure, life-history strategies, and plastid genomes, little is known about the diversity of their mitogenomes. We report the sequence of the wonderfully bizarre mitogenome of the hemiparasitic aerial mistletoe Viscum scurruloideum. This genome is only 66 kb in size, making it the smallest known angiosperm mitogenome by a factor of more than three and the smallest land plant mitogenome. Accompanying this size reduction is exceptional reduction of gene content. Much of this reduction arises from the unexpected loss of respiratory complex I (NADH dehydrogenase), universally present in all 300+ other angiosperms examined, where it is encoded by nine mitochondrial and many nuclear nad genes. Loss of complex I in a multicellular organism is unprecedented. We explore the potential relationship between this loss in Viscum and its parasitic lifestyle. Despite its small size, the Viscum mitogenome is unusually rich in recombinationally active repeats, possessing unparalleled levels of predicted sublimons resulting from recombination across short repeats. Many mitochondrial gene products exhibit extraordinary levels of divergence in Viscum, indicative of highly relaxed if not positive selection. In addition, all Viscum mitochondrial protein genes have experienced a dramatic acceleration in synonymous substitution rates, consistent with the hypothesis of genomic streamlining in response to a high mutation rate but completely opposite to the pattern seen for the high-rate but enormous mitogenomes of Silene. In sum, the Viscum mitogenome possesses a unique constellation of extremely unusual features, a subset of which may be related to its parasitic lifestyle.
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Affiliation(s)
| | - Todd J Barkman
- Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008
| | - Danny W Rice
- Department of Biology, Indiana University, Bloomington, IN 47405
| | - Jeffrey D Palmer
- Department of Biology, Indiana University, Bloomington, IN 47405;
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26
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Sinha P, Saxena KB, Saxena RK, Singh VK, Suryanarayana V, Sameer Kumar CV, Katta MAVS, Khan AW, Varshney RK. Association of nad7a Gene with Cytoplasmic Male Sterility in Pigeonpea. THE PLANT GENOME 2015; 8:eplantgenome2014.11.0084. [PMID: 33228303 DOI: 10.3835/plantgenome2014.11.0084] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 02/26/2015] [Indexed: 06/11/2023]
Abstract
Cytoplasmic male sterility (CMS) has been exploited in the commercial pigeonpea [Cajanus cajan (L.) Millsp.] hybrid breeding system; however, the molecular mechanism behind this system is unknown. To understand the underlying molecular mechanism involved in A4 CMS system derived from C. cajanifolius (Haines) Maesen, 34 mitochondrial genes were analyzed for expression profiling and structural variation analysis between CMS line (ICRISAT Pigeonpea A line, ICPA 2039) and its cognate maintainer (ICPB 2039). Expression profiling of 34 mitochondrial genes revealed nine genes with significant fold differential gene expression at P ≤ 0.01, including one gene, nad4L, with 1366-fold higher expression in CMS line as compared with the maintainer. Structural variation analysis of these mitochondrial genes identified length variation between ICPA 2039 and ICPB 2039 for nad7a (subunit of nad7 gene). Sanger sequencing of nad4L and nad7a genes in the CMS and the maintainer lines identified two single nucleotide polymorphisms (SNPs) in upstream region of nad4L and a deletion of 10 bp in nad7a in the CMS line. Protein structure evaluation showed conformational changes in predicted protein structures for nad7a between ICPA 2039 and ICPB 2039 lines. All above analyses indicate association of nad7a gene with the CMS for A4 cytoplasm in pigeonpea. Additionally, one polymerase chain reaction (PCR) based Indel marker (nad7a_del) has been developed and validated for testing genetic purity of A4 derived CMS lines to strengthen the commercial hybrid breeding program in pigeonpea.
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Affiliation(s)
- Pallavi Sinha
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
| | - K B Saxena
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
| | - Rachit K Saxena
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
| | - Vikas K Singh
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
| | - V Suryanarayana
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
| | - C V Sameer Kumar
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
| | - Mohan A V S Katta
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
| | - Aamir W Khan
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
| | - Rajeev K Varshney
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, India
- School of Plant Biology and Institute of Agriculture, The Univ. of Western Australia, 35 Stirling Hwy., Crawley, WA, 6009, Australia
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Hsieh WY, Liao JC, Chang CY, Harrison T, Boucher C, Hsieh MH. The SLOW GROWTH3 Pentatricopeptide Repeat Protein Is Required for the Splicing of Mitochondrial NADH Dehydrogenase Subunit7 Intron 2 in Arabidopsis. PLANT PHYSIOLOGY 2015; 168:490-501. [PMID: 25888618 PMCID: PMC4453791 DOI: 10.1104/pp.15.00354] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 04/15/2015] [Indexed: 05/03/2023]
Abstract
Mitochondria play an important role in maintaining metabolic and energy homeostasis in the cell. In plants, impairment in mitochondrial functions usually has detrimental effects on growth and development. To study genes that are important for plant growth, we have isolated a collection of slow growth (slo) mutants in Arabidopsis (Arabidopsis thaliana). One of the slo mutants, slo3, has a significant reduction in mitochondrial complex I activity. The slo3 mutant has a four-nucleotide deletion in At3g61360 that encodes a pentatricopeptide repeat (PPR) protein. The SLO3 protein contains nine classic PPR domains belonging to the P subfamily. The small deletion in the slo3 mutant changes the reading frame and creates a premature stop codon in the first PPR domain. We demonstrated that the SLO3-GFP is localized to the mitochondrion. Further analysis of mitochondrial RNA metabolism revealed that the slo3 mutant was defective in splicing of NADH dehydrogenase subunit7 (nad7) intron 2. This specific splicing defect led to a dramatic reduction in complex I activity in the mutant as revealed by blue native gel analysis. Complementation of slo3 by 35S:SLO3 or 35S:SLO3-GFP restored the splicing of nad7 intron 2, the complex I activity, and the growth defects of the mutant. Together, these results indicate that the SLO3 PPR protein is a splicing factor of nad7 intron 2 in Arabidopsis mitochondria.
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Affiliation(s)
- Wei-Yu Hsieh
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan (W.-Y.H., J.-C.L., C.-Y.C., M.-H.H.); andDepartment of Computer Science, Colorado State University, Fort Collins, Colorado 80523-1873 (T.H., C.B.)
| | - Jo-Chien Liao
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan (W.-Y.H., J.-C.L., C.-Y.C., M.-H.H.); andDepartment of Computer Science, Colorado State University, Fort Collins, Colorado 80523-1873 (T.H., C.B.)
| | - Chiung-Yun Chang
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan (W.-Y.H., J.-C.L., C.-Y.C., M.-H.H.); andDepartment of Computer Science, Colorado State University, Fort Collins, Colorado 80523-1873 (T.H., C.B.)
| | - Thomas Harrison
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan (W.-Y.H., J.-C.L., C.-Y.C., M.-H.H.); andDepartment of Computer Science, Colorado State University, Fort Collins, Colorado 80523-1873 (T.H., C.B.)
| | - Christina Boucher
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan (W.-Y.H., J.-C.L., C.-Y.C., M.-H.H.); andDepartment of Computer Science, Colorado State University, Fort Collins, Colorado 80523-1873 (T.H., C.B.)
| | - Ming-Hsiun Hsieh
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan (W.-Y.H., J.-C.L., C.-Y.C., M.-H.H.); andDepartment of Computer Science, Colorado State University, Fort Collins, Colorado 80523-1873 (T.H., C.B.)
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28
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Del Valle-Echevarria AR, Kiełkowska A, Bartoszewski G, Havey MJ. The Mosaic Mutants of Cucumber: A Method to Produce Knock-Downs of Mitochondrial Transcripts. G3 (BETHESDA, MD.) 2015; 5:1211-21. [PMID: 25873637 PMCID: PMC4478549 DOI: 10.1534/g3.115.017053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 04/11/2015] [Indexed: 11/25/2022]
Abstract
Cytoplasmic effects on plant performance are well-documented and result from the intimate interaction between organellar and nuclear gene products. In plants, deletions, mutations, or chimerism of mitochondrial genes are often associated with deleterious phenotypes, as well as economically important traits such as cytoplasmic male sterility used to produce hybrid seed. Presently, genetic analyses of mitochondrial function and nuclear interactions are limited because there is no method to efficiently produce mitochondrial mutants. Cucumber (Cucumis sativus L.) possesses unique attributes useful for organellar genetics, including differential transmission of the three plant genomes (maternal for plastid, paternal for mitochondrial, and bi-parental for nuclear), a relatively large mitochondrial DNA in which recombination among repetitive motifs produces rearrangements, and the existence of strongly mosaic (MSC) paternally transmitted phenotypes that appear after passage of wild-type plants through cell cultures and possess unique rearrangements in the mitochondrial DNA. We sequenced the mitochondrial DNA from three independently produced MSC lines and revealed under-represented regions and reduced transcription of mitochondrial genes carried in these regions relative to the wild-type parental line. Mass spectrometry and Western blots did not corroborate transcriptional differences in the mitochondrial proteome of the MSC mutant lines, indicating that post-transcriptional events, such as protein longevity, may compensate for reduced transcription in MSC mitochondria. Our results support cucumber as a model system to produce transcriptional "knock-downs" of mitochondrial genes useful to study mitochondrial responses and nuclear interactions important for plant performance.
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Affiliation(s)
| | - Agnieszka Kiełkowska
- Faculty of Horticulture, Agricultural University of Krakow, Al. 29 Listopada 54, 31-425 Krakow, Poland
| | - Grzegorz Bartoszewski
- Department of Plant Genetics, Breeding and Biotechnology, Faculty of Horticulture, Biotechnology and Landscape Architecture, Warsaw University of Life Sciences, ul. Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Michael J Havey
- Department of Horticulture, University of Wisconsin, Madison, Wisconsin 53706 USDA Agricultural Research Service, University of Wisconsin, Madison, Wisconsin 53706
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29
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Wang Y, Li Y, Xue H, Pritchard HW, Wang X. Reactive oxygen species-provoked mitochondria-dependent cell death during ageing of elm (Ulmus pumila L.) seeds. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2015; 81:438-52. [PMID: 25439659 DOI: 10.1111/tpj.12737] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 11/26/2014] [Accepted: 11/27/2014] [Indexed: 05/28/2023]
Abstract
Previous studies have shown that controlled deterioration treatment (CDT) induces programmed cell death in elm (Ulmus pumila L.) seeds, which undergo certain fundamental processes that are comparable to apoptosis in animals. In this study, the essential characteristics of mitochondrial physiology in elm seeds during CDT were identified by cellular ultrastructural analysis, whole-body optical imaging, Western blotting and semi-quantitative RT-PCR. The alteration in mitochondrial morphology was an early event during CDT, as indicated by progressive dynamic mitochondrial changes and rupture of the mitochondrial outer membrane; loss of mitochondrial transmembrane potential (Δψ(m)) ensued, and mitochondrial ATP levels decreased. The mitochondrial permeability transition pore inhibitor cyclosporine A effectively suppressed these changes during ageing. The in situ localization of production of reactive oxygen species (ROS), and evaluation of the expression of voltage-dependent anion-selective channel and cyclophilin D indicated that the levels of mitochondrial permeability transition pore components were positively correlated with ROS production, leading to an imbalance of the cellular redox potential and ultimately to programmed cell death. Pre-incubation with ascorbic acid slowed loss of mitochondrial Δψ(m), and decreased the effect of CDT on seed viability. However, there were no significant changes in multiple antioxidant elements or chaperones in the mitochondria during early stages of ageing. Our results indicate that CDT induces dynamic changes in mitochondrial physiology via increased ROS production, ultimately resulting in an irreversible loss of seed viability.
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Affiliation(s)
- Yu Wang
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, 35 Tsinghua East Road, Beijing, China
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30
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A co-expression gene network associated with developmental regulation of apple fruit acidity. Mol Genet Genomics 2015; 290:1247-63. [PMID: 25576355 DOI: 10.1007/s00438-014-0986-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Accepted: 12/30/2014] [Indexed: 12/27/2022]
Abstract
Apple fruit acidity, which affects the fruit's overall taste and flavor to a large extent, is primarily determined by the concentration of malic acid. Previous studies demonstrated that the major QTL malic acid (Ma) on chromosome 16 is largely responsible for fruit acidity variations in apple. Recent advances suggested that a natural mutation that gives rise to a premature stop codon in one of the two aluminum-activated malate transporter (ALMT)-like genes (called Ma1) is the genetic causal element underlying Ma. However, the natural mutation does not explain the developmental changes of fruit malate levels in a given genotype. Using RNA-seq data from the fruit of 'Golden Delicious' taken at 14 developmental stages from 1 week after full-bloom (WAF01) to harvest (WAF20), we characterized their transcriptomes in groups of high (12.2 ± 1.6 mg/g fw, WAF03-WAF08), mid (7.4 ± 0.5 mg/g fw, WAF01-WAF02 and WAF10-WAF14) and low (5.4 ± 0.4 mg/g fw, WAF16-WAF20) malate concentrations. Detailed analyses showed that a set of 3,066 genes (including Ma1) were expressed not only differentially (P FDR < 0.05) between the high and low malate groups (or between the early and late developmental stages) but also in significant (P < 0.05) correlation with malate concentrations. The 3,066 genes fell in 648 MapMan (sub-) bins or functional classes, and 19 of them were significantly (P FDR < 0.05) co-enriched or co-suppressed in a malate dependent manner. Network inferring using the 363 genes encompassed in the 19 (sub-) bins, identified a major co-expression network of 239 genes. Since the 239 genes were also differentially expressed between the early (WAF03-WAF08) and late (WAF16-WAF20) developmental stages, the major network was considered to be associated with developmental regulation of apple fruit acidity in 'Golden Delicious'.
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31
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Kühn K, Yin G, Duncan O, Law SR, Kubiszewski-Jakubiak S, Kaur P, Meyer E, Wang Y, Small CCDF, Giraud E, Narsai R, Whelan J. Decreasing electron flux through the cytochrome and/or alternative respiratory pathways triggers common and distinct cellular responses dependent on growth conditions. PLANT PHYSIOLOGY 2015; 167:228-50. [PMID: 25378695 PMCID: PMC4281006 DOI: 10.1104/pp.114.249946] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 10/29/2014] [Indexed: 05/18/2023]
Abstract
Diverse signaling pathways are activated by perturbation of mitochondrial function under different growth conditions.Mitochondria have emerged as an important organelle for sensing and coping with stress in addition to being the sites of important metabolic pathways. Here, responses to moderate light and drought stress were examined in different Arabidopsis (Arabidopsis thaliana) mutant plants lacking a functional alternative oxidase (alternative oxidase1a [aox1a]), those with reduced cytochrome electron transport chain capacity (T3/T7 bacteriophage-type RNA polymerase, mitochondrial, and plastidial [rpoTmp]), and double mutants impaired in both pathways (aox1a:rpoTmp). Under conditions considered optimal for growth, transcriptomes of aox1a and rpoTmp were distinct. Under adverse growth conditions, however, transcriptome changes in aox1a and rpoTmp displayed a highly significant overlap and were indicative of a common mitochondrial stress response and down-regulation of photosynthesis. This suggests that the role of mitochondria to support photosynthesis is provided through either the alternative pathway or the cytochrome pathway, and when either pathway is inhibited, such as under environmental stress, a common, dramatic, and succinct mitochondrial signal is activated to alter energy metabolism in both organelles. aox1a:rpoTmp double mutants grown under optimal conditions showed dramatic reductions in biomass production compared with aox1a and rpoTmp and a transcriptome that was distinct from aox1a or rpoTmp. Transcript data indicating activation of mitochondrial biogenesis in aox1a:rpoTmp were supported by a proteomic analysis of over 200 proteins. Under optimal conditions, aox1a:rpoTmp plants seemed to switch on many of the typical mitochondrial stress regulators. Under adverse conditions, aox1a:rpoTmp turned off these responses and displayed a biotic stress response. Taken together, these results highlight the diverse signaling pathways activated by the perturbation of mitochondrial function under different growth conditions.
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Affiliation(s)
- Kristina Kühn
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Guangkun Yin
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Owen Duncan
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Simon R Law
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Szymon Kubiszewski-Jakubiak
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Parwinder Kaur
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Etienne Meyer
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Yan Wang
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Catherine Colas des Francs Small
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Estelle Giraud
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - Reena Narsai
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
| | - James Whelan
- Molekulare Zellbiologie der Pflanzen, Institut für Biologie, Humboldt-Universität zu Berlin, D-10115 Berlin, Germany (K.K.);Australian Research Council Centre of Excellence in Plant Energy Biology (G.Y., O.D., S.K.-J., C.C.d.F.S.) andCentre for Plant Genetics and Breeding (P.K.), University of Western Australia, Crawley, Western Australia 6009, Australia;National Genebank, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China (G.Y.);Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, La Trobe University, Bundoora, Victoria 3083, Australia (S.R.L., Y.W., R.N., J.W.);Department of Organelle Biology and Biotechnology, Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany (E.M.); andIllumina, Inc., Scoresby, Victoria 3179, Australia (E.G.)
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Massoz S, Larosa V, Plancke C, Lapaille M, Bailleul B, Pirotte D, Radoux M, Leprince P, Coosemans N, Matagne RF, Remacle C, Cardol P. Inactivation of genes coding for mitochondrial Nd7 and Nd9 complex I subunits in Chlamydomonas reinhardtii. Impact of complex I loss on respiration and energetic metabolism. Mitochondrion 2014; 19 Pt B:365-74. [DOI: 10.1016/j.mito.2013.11.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 11/22/2013] [Accepted: 11/26/2013] [Indexed: 02/04/2023]
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Arenas-M A, Zehrmann A, Moreno S, Takenaka M, Jordana X. The pentatricopeptide repeat protein MEF26 participates in RNA editing in mitochondrial cox3 and nad4 transcripts. Mitochondrion 2014; 19 Pt B:126-34. [PMID: 25173472 DOI: 10.1016/j.mito.2014.08.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/16/2014] [Accepted: 08/20/2014] [Indexed: 11/15/2022]
Abstract
In angiosperms most members of the large nuclear-encoded family of pentatricopeptide repeat (PPR) proteins are predicted to play relevant roles in the maturation of organellar RNAs. Here we report the novel Mitochondrial Editing Factor 26, a DYW-PPR protein involved in RNA editing at two sites. While at one site, cox3-311, editing is abolished in the absence of MEF26, the other site, nad4-166, is still partially edited. These sites share similar cis-elements and application of the recently proposed amino acid code for RNA recognition by PPR proteins ranks them at first and second positions of the most probable targets.
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Affiliation(s)
- Anita Arenas-M
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Casilla 114-D, Santiago, Chile.
| | - Anja Zehrmann
- Molekulare Botanik, Universität Ulm, 89069 Ulm, Germany.
| | - Sebastian Moreno
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Casilla 114-D, Santiago, Chile.
| | | | - Xavier Jordana
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Casilla 114-D, Santiago, Chile.
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Colas des Francs-Small C, Falcon de Longevialle A, Li Y, Lowe E, Tanz SK, Smith C, Bevan MW, Small I. The Pentatricopeptide Repeat Proteins TANG2 and ORGANELLE TRANSCRIPT PROCESSING439 Are Involved in the Splicing of the Multipartite nad5 Transcript Encoding a Subunit of Mitochondrial Complex I. PLANT PHYSIOLOGY 2014; 165:1409-1416. [PMID: 24958715 PMCID: PMC4119027 DOI: 10.1104/pp.114.244616] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 06/18/2014] [Indexed: 05/04/2023]
Abstract
Pentatricopeptide repeat proteins constitute a large family of RNA-binding proteins in higher plants (around 450 genes in Arabidopsis [Arabidopsis thaliana]), mostly targeted to chloroplasts and mitochondria. Many of them are involved in organelle posttranscriptional processes, in a very specific manner. Splicing is necessary to remove the group II introns, which interrupt the coding sequences of several genes encoding components of the mitochondrial respiratory chain. The nad5 gene is fragmented in five exons, belonging to three distinct transcription units. Its maturation requires two cis- and two trans-splicing events. These steps need to be performed in a very precise order to generate a functional transcript. Here, we characterize two pentatricopeptide repeat proteins, ORGANELLE TRANSCRIPT PROCESSING439 and TANG2, and show that they are involved in the removal of nad5 introns 2 and 3, respectively. To our knowledge, they are the first two specific nad5 splicing factors found in plants so far.
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Affiliation(s)
- Catherine Colas des Francs-Small
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S., A.F.d.L., E.L., S.K.T., I.S.); andDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (Y.L., C.S., M.W.B.)
| | - Andéol Falcon de Longevialle
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S., A.F.d.L., E.L., S.K.T., I.S.); andDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (Y.L., C.S., M.W.B.)
| | - Yunhai Li
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S., A.F.d.L., E.L., S.K.T., I.S.); andDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (Y.L., C.S., M.W.B.)
| | - Elizabeth Lowe
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S., A.F.d.L., E.L., S.K.T., I.S.); andDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (Y.L., C.S., M.W.B.)
| | - Sandra K Tanz
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S., A.F.d.L., E.L., S.K.T., I.S.); andDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (Y.L., C.S., M.W.B.)
| | - Caroline Smith
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S., A.F.d.L., E.L., S.K.T., I.S.); andDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (Y.L., C.S., M.W.B.)
| | - Michael W Bevan
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S., A.F.d.L., E.L., S.K.T., I.S.); andDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (Y.L., C.S., M.W.B.)
| | - Ian Small
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (C.C.d.F.-S., A.F.d.L., E.L., S.K.T., I.S.); andDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (Y.L., C.S., M.W.B.)
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Kianian PMA, Kianian SF. Mitochondrial dynamics and the cell cycle. FRONTIERS IN PLANT SCIENCE 2014; 5:222. [PMID: 24904617 PMCID: PMC4035010 DOI: 10.3389/fpls.2014.00222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 05/04/2014] [Indexed: 05/25/2023]
Abstract
Nuclear-mitochondrial (NM) communication impacts many aspects of plant development including vigor, sterility, and viability. Dynamic changes in mitochondrial number, shape, size, and cellular location takes place during the cell cycle possibly impacting the process itself and leading to distribution of this organelle into daughter cells. The genes that underlie these changes are beginning to be identified in model plants such as Arabidopsis. In animals disruption of the drp1 gene, a homolog to the plant drp3A and drp3B, delays mitochondrial division. This mutation results in increased aneuploidy due to chromosome mis-segregation. It remains to be discovered if a similar outcome is observed in plants. Alloplasmic lines provide an opportunity to understand the communication between the cytoplasmic organelles and the nucleus. Examples of studies in these lines, especially from the extensive collection in wheat, point to the role of mitochondria in chromosome movement, pollen fertility and other aspects of development.
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Affiliation(s)
- Penny M. A. Kianian
- Department of Horticultural Science, University of MinnesotaSt. Paul, MN, USA
| | - Shahryar F. Kianian
- Cereal Disease Laboratory, United States Department of Agriculture – Agricultural Research ServiceSt. Paul, MN, USA
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Ostaszewska M, Juszczuk IM, Kołodziejek I, Rychter AM. Long-term sulphur starvation of Arabidopsis thaliana modifies mitochondrial ultrastructure and activity and changes tissue energy and redox status. JOURNAL OF PLANT PHYSIOLOGY 2014; 171:549-558. [PMID: 24655391 DOI: 10.1016/j.jplph.2013.12.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 12/12/2013] [Accepted: 12/16/2013] [Indexed: 06/03/2023]
Abstract
Sulphur, as a constituent of amino acids (cysteine and methionine), iron-sulphur clusters, proteins, membrane sulpholipids, glutathione, glucosinolates, coenzymes, and auxin precursors, is essential for plant growth and development. Absence or low sulphur concentration in the soil results in severe growth retardation. Arabidopsis thaliana plants grown hydroponically for nine weeks on Knop nutrient medium without sulphur showed morphological symptoms of sulphur deficiency. The purpose of our study was to investigate changes that mitochondria undergo and the role of the highly branched respiratory chain in survival during sulphur deficiency stress. Ultrastructure analysis of leaf mesophyll cells of sulphur-deficient Arabidopsis showed heterogeneity of mitochondria; some of them were not altered, but the majority had swollen morphology. Dilated mitochondria displayed a lower matrix density and fewer cristae compared to control mitochondria. Disintegration of the inner and outer membranes of some mitochondria from the leaves of sulphur-deficient plants was observed. On the contrary, chloroplast ultrastructure was not affected. Sulphur deficiency changed the respiratory activity of tissues and isolated mitochondria; Complex I and IV capacities and phosphorylation rates were lower, but external NAD(P)H dehydrogenase activity increased. Higher external NAD(P)H dehydrogenase activity corresponded to increased cell redox level with doubled NADH/NAD ratio in the leaf and root tissues. Sulphur deficiency modified energy status in the tissues of Arabidopsis plants. The total concentration of adenylates (expressed as ATP+ADP), measured in the light, was lower in the leaves and roots of sulphur-deficient plants than in the controls, which was mainly due to the severely decreased ATP levels. We show that the changes in mitochondrial ultrastructure are compensated by the modifications in respiratory chain activity. Although mitochondria of Arabidopsis tissues are affected by sulphur deficiency, their metabolic and structural features, which readily reach new homeostasis, make these organelles crucial for adaptation of plants to survive sulphur deficiency.
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Affiliation(s)
- Monika Ostaszewska
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
| | - Izabela M Juszczuk
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland.
| | - Izabella Kołodziejek
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
| | - Anna M Rychter
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
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Mitochondrion role in molecular basis of cytoplasmic male sterility. Mitochondrion 2014; 19 Pt B:198-205. [PMID: 24732436 DOI: 10.1016/j.mito.2014.04.004] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 03/31/2014] [Accepted: 04/04/2014] [Indexed: 11/24/2022]
Abstract
Cytoplasmic male sterility and its fertility restoration via nuclear genes offer the possibility to understand the role of mitochondria during microsporogenesis. In most cases rearrangements in the mitochondrial DNA involving known mitochondrial genes as well as unknown sequences result in the creation of new chimeric open reading frames, which encode proteins containing transmembrane domains. So far, most of the CMS systems have been characterized via restriction fragment polymorphisms followed by transcript analysis. However, whole mitochondrial genome sequence analyses comparing male sterile and fertile cytoplasm open options for deeper insights into mitochondrial genome rearrangements. We more and more start to unravel how mitochondria are involved in triggering death of the male reproductive organs. Reduced levels of ATP accompanied by increased concentrations of reactive oxygen species, which are produced more under conditions of mitochondrial dysfunction, seem to play a major role in the fate of pollen production. Nuclear genes, so called restorer-of-fertility are able to restore the male fertility. Fertility restoration can occur via pentatricopeptide repeat (PPR) proteins or via different mechanisms involving non-PPR proteins.
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Cohen S, Zmudjak M, Colas des Francs-Small C, Malik S, Shaya F, Keren I, Belausov E, Many Y, Brown GG, Small I, Ostersetzer-Biran O. nMAT4, a maturase factor required for nad1 pre-mRNA processing and maturation, is essential for holocomplex I biogenesis in Arabidopsis mitochondria. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2014; 78:253-68. [PMID: 24506473 DOI: 10.1111/tpj.12466] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 01/17/2014] [Accepted: 01/28/2014] [Indexed: 05/23/2023]
Abstract
Group II introns are large catalytic RNAs that are found in bacteria and organellar genomes of lower eukaryotes, but are particularly prevalent within mitochondria in plants, where they are present in many critical genes. The excision of plant mitochondrial introns is essential for respiratory functions, and is facilitated in vivo by various protein cofactors. Typical group II introns are classified as mobile genetic elements, consisting of the self-splicing ribozyme and its own intron-encoded maturase protein. A hallmark of maturases is that they are intron-specific, acting as cofactors that bind their intron-containing pre-RNAs to facilitate splicing. However, the degeneracy of the mitochondrial introns in plants and the absence of cognate intron-encoded maturase open reading frames suggest that their splicing in vivo is assisted by 'trans'-acting protein factors. Interestingly, angiosperms harbor several nuclear-encoded maturase-related (nMat) genes that contain N-terminal mitochondrial localization signals. Recently, we established the roles of two of these paralogs in Arabidopsis, nMAT1 and nMAT2, in the splicing of mitochondrial introns. Here we show that nMAT4 (At1g74350) is required for RNA processing and maturation of nad1 introns 1, 3 and 4 in Arabidopsis mitochondria. Seed germination, seedling establishment and development are strongly affected in homozygous nmat4 mutants, which also show modified respiration phenotypes that are tightly associated with complex I defects.
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Affiliation(s)
- Sigal Cohen
- Department of Plant and Environmental Sciences, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Givat-Ram, Jerusalem, 91904, Israel
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Araújo WL, Nunes-Nesi A, Fernie AR. On the role of plant mitochondrial metabolism and its impact on photosynthesis in both optimal and sub-optimal growth conditions. PHOTOSYNTHESIS RESEARCH 2014; 119:141-156. [PMID: 23456269 DOI: 10.1007/s11120-013-9807-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 02/18/2013] [Indexed: 06/01/2023]
Abstract
Given that the pathways of photosynthesis and respiration catalyze partially opposing processes, it follows that their relative activities must be carefully regulated within plant cells. Recent evidence has shown that the components of the mitochondrial electron transport chain are essential for the proper maintenance of intracellular redox gradients, to allow considerable rates of photorespiration and in turn efficient photosynthesis. Thus considerable advances have been made in understanding the interaction between respiration and photosynthesis during the last decades and the potential mechanisms linking mitochondrial function and photosynthetic efficiency will be reviewed. Despite the fact that manipulation of various steps of mitochondrial metabolism has been demonstrated to alter photosynthesis under optimal growth conditions, it is likely that these changes will, by and large, not be maintained under sub-optimal situations. Therefore producing plants to meet this aim remains a critical challenge. It is clear, however, that although there have been a range of studies analysing changes in respiratory and photosynthetic rates in response to light, temperature and CO2, our knowledge of the environmental impact on these processes and its linkage still remains fragmented. We will also discuss the metabolic changes associated to plant respiration and photosynthesis as important components of the survival strategy as they considerably extend the period that a plant can withstand to a stress situation.
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Affiliation(s)
- Wagner L Araújo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil
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40
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Surrogate mutants for studying mitochondrially encoded functions. Biochimie 2013; 100:234-42. [PMID: 23994752 DOI: 10.1016/j.biochi.2013.08.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 08/18/2013] [Indexed: 11/24/2022]
Abstract
Although chloroplast transformation is possible in some plant species, it is extremely difficult to create or select mutations in plant mitochondrial genomes, explaining why few genetic studies of mitochondrially encoded functions exist. In recent years it has become clear that many nuclear genes encode factors with key functions in organelle gene expression, and that often their action is restricted to a single organelle gene or transcript. Mutations in one of these nuclear genes thus leads to a specific primary defect in expression of a single organelle gene, and the nuclear mutation can be used as a surrogate for a phenotypically equivalent mutation in the organelle genome. These surrogate mutations often result in defective assembly of respiratory complexes, and lead to severe phenotypes including reduced growth and fertility, or even embryo-lethality. A wide collection of such mutants is now available, and this review summarises the progress in basic knowledge of mitochondrial biogenesis they have contributed to and points out areas where this resource has not been exploited yet.
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Rzigui T, De Paepe R, Cornic G, Streb P. In the mitochondrial CMSII mutant of Nicotiana sylvestris photosynthetic activity remains higher than in the WT under persisting mild water stress. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2013; 205-206:20-8. [PMID: 23498859 DOI: 10.1016/j.plantsci.2013.01.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2012] [Revised: 01/24/2013] [Accepted: 01/26/2013] [Indexed: 06/01/2023]
Abstract
Photosynthetic responses to persisting mild water stress were compared between the wild type (WT) and the respiratory complex I mutant CMSII of Nicotiana sylvestris. In both genotypes, plants kept at 80% leaf-RWC (WT80 and CMSII80) had lower photosynthetic activity and stomatal/mesophyll conductances compared to well-watered controls. While the stomatal conductance and the chloroplastic CO2 molar ratio were similar in WT80 and CMSII80 leaves, net photosynthesis was higher in CMSII80. Carboxylation efficiency was lowest in WT80 leaves both, on the basis of the same internal and chloroplastic CO2 molar ratio. Photosynthetic and fluorescence parameters indicate that WT80 leaves were only affected in the presence of oxygen. Photorespiration, as estimated by electron flux to oxygen, increased slightly in CMSII80 and WT80 leaves in accordance with increased glycerate contents but maximum photorespiration at low chloroplastic CO2 was markedly lowest in WT80 leaves. This suggests that carbon assimilation of WT80 leaves is impaired by limited photorespiratory activity. The results are discussed with respect to a possible pre-acclimation of complex I deficient leaves in CMSII to drive photosynthesis and photorespiration at low CO2 partial pressure.
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Affiliation(s)
- Touhami Rzigui
- Université Paris-Sud 11, Ecologie, Systématique et Evolution, UMR-CNRS 8079, Bâtiment 362, 91405 Orsay Cedex, France
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42
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Toda T, Fujii S, Noguchi K, Kazama T, Toriyama K. Rice MPR25 encodes a pentatricopeptide repeat protein and is essential for RNA editing of nad5 transcripts in mitochondria. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2012; 72:450-60. [PMID: 22747551 DOI: 10.1111/j.1365-313x.2012.05091.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Pentatricopeptide repeat (PPR) proteins are involved in the modification of organelle transcripts. In this study, we investigated the molecular function in rice of the mitochondrial PPR-encoding gene MITOCHONDRIAL PPR25 (MPR25), which belongs to the E subgroup of the PPR family. A Tos17 knockout mutant of MPR25 exhibited growth retardation and pale-green leaves with reduced chlorophyll content during the early stages of plant development. The photosynthetic rate in the mpr25 mutant was significantly decreased, especially under strong light conditions, although the respiration rate did not differ from that of wild-type plants. MPR25 was preferentially expressed in leaves. FLAG-tagged MPR25 accumulated in mitochondria but not in chloroplasts. Direct sequencing revealed that the mpr25 mutant fails to edit a C-U RNA editing site at nucleotide 1580 of nad5, which encodes a subunit of complex I (NADH dehydrogenase) of the respiratory chain in mitochondria. RNA editing of this site is responsible for a change in amino acid from serine to leucine. Recombinant MPR25 directly interacted with the proximal region of the editing site of nad5 transcripts. However, the NADH dehydrogenase activity of complex I was not affected in the mutant. By contrast, genes encoding alternative NADH dehydrogenases and alternative oxidase were up-regulated. The mpr25 mutant may therefore provide new information on the coordinated interaction between mitochondria and chloroplasts.
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MESH Headings
- Amino Acid Substitution
- Cell Respiration
- Chloroplasts/genetics
- Chloroplasts/metabolism
- Gene Expression Regulation, Plant/genetics
- Gene Knockout Techniques
- Light
- Mitochondria/genetics
- Mitochondria/metabolism
- Mitochondrial Proteins/genetics
- Mitochondrial Proteins/metabolism
- Mutagenesis, Insertional
- NADH Dehydrogenase/genetics
- NADH Dehydrogenase/metabolism
- Oryza/enzymology
- Oryza/genetics
- Oryza/growth & development
- Oryza/radiation effects
- Oxidoreductases/genetics
- Oxidoreductases/metabolism
- Phenotype
- Photosynthesis
- Plant Components, Aerial/enzymology
- Plant Components, Aerial/genetics
- Plant Components, Aerial/growth & development
- Plant Components, Aerial/radiation effects
- Plant Proteins/genetics
- Plant Proteins/metabolism
- Plant Roots/enzymology
- Plant Roots/genetics
- Plant Roots/growth & development
- Plant Roots/radiation effects
- Protein Transport
- RNA Editing
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Plant/genetics
- RNA, Plant/metabolism
- RNA-Binding Proteins/genetics
- RNA-Binding Proteins/metabolism
- Recombinant Fusion Proteins
- Seedlings/enzymology
- Seedlings/genetics
- Seedlings/growth & development
- Seedlings/radiation effects
- Sequence Analysis, DNA
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Affiliation(s)
- Takushi Toda
- Laboratory of Environmental Plant Biotechnology, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Sendai 981-8555, Japan
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43
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Huang L, Xiang J, Liu J, Rong T, Wang J, Lu Y, Tang Q, Wen W, Cao M. Expression characterization of genes for CMS-C in maize. PROTOPLASMA 2012; 249:1119-27. [PMID: 22160189 DOI: 10.1007/s00709-011-0358-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 11/28/2011] [Indexed: 05/25/2023]
Abstract
Cytoplasmic male sterility (CMS)-C is one of the most attractive sources of male sterility in the production of hybrid maize. However, the abortion mechanism of CMS-C is currently unknown. The major aim of this work was to characterize the expression of genes and proteins during pollen abortion. The materials assayed included CMS-C line C48-2, its maintainer line N48-2, and fertile F(1) (C48-2 × 18 white). A total of 20 unique genes and 25 proteins were identified by suppression subtractive hybridization and 2-D electrophoresis, respectively. Most of the genes and proteins identified are closely related to energy metabolism, stress responses, molecular chaperones, and cell death, which are generally considered to be essential to pollen development. Based on the function of these identified genes and proteins, reactive oxygen species in isolated mitochondria and DNA fragments were analyzed. The results from this study indicate that the oxidative stress which was associated with the specific expression patterns of some genes may be the physiological cause for the abortion of premature microspores in the maize CMS-C line.
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Affiliation(s)
- Ling Huang
- Maize Research Institute of Sichuan Agricultural University/Key Laboratory of Crop Genetic Resource and Improvement, Ministry of Education/Key Laboratory of Maize Biology and Genetic Breeding on Southwest, Ministry of Agriculture, Ya'an, 625014, Sichuan, China
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44
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Comparison of intact Arabidopsis thaliana leaf transcript profiles during treatment with inhibitors of mitochondrial electron transport and TCA cycle. PLoS One 2012; 7:e44339. [PMID: 23028523 PMCID: PMC3445595 DOI: 10.1371/journal.pone.0044339] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 08/02/2012] [Indexed: 01/02/2023] Open
Abstract
Plant mitochondria signal to the nucleus leading to altered transcription of nuclear genes by a process called mitochondrial retrograde regulation (MRR). MRR is implicated in metabolic homeostasis and responses to stress conditions. Mitochondrial reactive oxygen species (mtROS) are a MRR signaling component, but whether all MRR requires ROS is not established. Inhibition of the cytochrome respiratory pathway by antimycin A (AA) or the TCA cycle by monofluoroacetate (MFA), each of which initiates MRR, can increase ROS production in some plant cells. We found that for AA and MFA applied to leaves of soil-grown Arabidopsis thaliana plants, ROS production increased with AA, but not with MFA, allowing comparison of transcript profiles under different ROS conditions during MRR. Variation in transcript accumulation over time for eight nuclear encoded mitochondrial protein genes suggested operation of both common and distinct signaling pathways between the two treatments. Consequences of mitochondrial perturbations for the whole transcriptome were examined by microarray analyses. Expression of 1316 and 606 genes was altered by AA and MFA, respectively. A subset of genes was similarly affected by both treatments, including genes encoding photosynthesis-related proteins. MFA treatment resulted in more down-regulation. Functional gene category (MapMan) and cluster analyses showed that genes with expression levels affected by perturbation from AA or MFA inhibition were most similarly affected by biotic stresses such as pathogens. Overall, the data provide further evidence for the presence of mtROS-independent MRR signaling, and support the proposed involvement of MRR and mitochondrial function in plant responses to biotic stress.
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45
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Zhu Q, Dugardeyn J, Zhang C, Takenaka M, Kühn K, Craddock C, Smalle J, Karampelias M, Denecke J, Peters J, Gerats T, Brennicke A, Eastmond P, Meyer EH, Van Der Straeten D. SLO2, a mitochondrial pentatricopeptide repeat protein affecting several RNA editing sites, is required for energy metabolism. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2012; 71:836-49. [PMID: 22540321 DOI: 10.1111/j.1365-313x.2012.05036.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Pentatricopeptide repeat (PPR) proteins belong to a family of approximately 450 members in Arabidopsis, of which few have been characterized. We identified loss of function alleles of SLO2, defective in a PPR protein belonging to the E+ subclass of the P-L-S subfamily. slo2 mutants are characterized by retarded leaf emergence, restricted root growth, and late flowering. This phenotype is enhanced in the absence of sucrose, suggesting a defect in energy metabolism. The slo2 growth retardation phenotypes are largely suppressed by supplying sugars or increasing light dosage or the concentration of CO₂. The SLO2 protein is localized in mitochondria. We identified four RNA editing defects and reduced editing at three sites in slo2 mutants. The resulting amino acid changes occur in four mitochondrial proteins belonging to complex I of the electron transport chain. Both the abundance and activity of complex I are highly reduced in the slo2 mutants, as well as the abundance of complexes III and IV. Moreover, ATP, NAD+, and sugar contents were much lower in the mutants. In contrast, the abundance of alternative oxidase was significantly enhanced. We propose that SLO2 is required for carbon energy balance in Arabidopsis by maintaining the abundance and/or activity of complexes I, III, and IV of the mitochondrial electron transport chain.
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Affiliation(s)
- Qiang Zhu
- Laboratory of Functional Plant Biology, Department of Physiology, Ghent University, K L Ledeganckstraat 35, B-9000 Ghent, Belgium
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46
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Gandin A, Duffes C, Day DA, Cousins AB. The absence of alternative oxidase AOX1A results in altered response of photosynthetic carbon assimilation to increasing CO(2) in Arabidopsis thaliana. PLANT & CELL PHYSIOLOGY 2012; 53:1627-37. [PMID: 22848123 DOI: 10.1093/pcp/pcs107] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In higher plants, the mitochondrial electron transport chain has non-phosphorylating alternative pathways that include the alternative terminal oxidase (AOX). This alternative pathway has been suggested to act as a sink for dissipating excess reducing power, minimizing oxidative stress and possibly optimizing photosynthesis in response to changing conditions. The expression patterns of the AOX genes have been well characterized under different growth conditions, particularly in response to light and temperature stress. Additionally, it has been suggested that mitochondrial electron transport is important for avoiding chloroplast over-reduction and balancing energy partitioning among photosynthesis, photorespiration and respiration. Nonetheless, the role AOX plays in optimizing photosynthetic carbon metabolism is unclear. Therefore, the response of photosynthesis to the disruption of AOX was investigated in the Arabidopsis thaliana T-DNA mutant aox1a (SALK_084897). Gas exchange analysis revealed a lower net CO(2) assimilation rate (A) at high CO(2) concentrations in the aox1a mutant compared to wild type. This decrease in A was accompanied by a lower maximum electron transport rate and quantum yield of PSII, and higher excitation pressure on PSII and non-photochemical quenching. The aox1a mutant also exhibited a lower estimated rate of ribulose 1,5-bisphosphate regeneration, and the ribulose 1,5-bisphosphate content was lower at high CO(2) concentrations, suggesting an ATP limitation of the Calvin-Benson cycle. Additionally, the activity of the malate-oxaloacetate shuttle was lower in the mutant compared to wild type. These results indicate that AOX is important for optimizing rates of photosynthetic CO(2) assimilation in response to rising CO(2) concentration by balancing the NAD(P)H/ATP ratio and rates of ribulose 1,5-bisphosphate regeneration within the chloroplast.
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Affiliation(s)
- Anthony Gandin
- School of Biological Sciences, Molecular Plant Science, Washington State University, Pullman, WA 99164-4236, USA
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47
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Geisler DA, Päpke C, Obata T, Nunes-Nesi A, Matthes A, Schneitz K, Maximova E, Araújo WL, Fernie AR, Persson S. Downregulation of the δ-subunit reduces mitochondrial ATP synthase levels, alters respiration, and restricts growth and gametophyte development in Arabidopsis. THE PLANT CELL 2012; 24:2792-811. [PMID: 22805435 PMCID: PMC3426115 DOI: 10.1105/tpc.112.099424] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The mitochondrial ATP synthase (F(1)F(o) complex) is an evolutionary conserved multimeric protein complex that synthesizes the main bulk of cytosolic ATP, but the regulatory mechanisms of the subunits are only poorly understood in plants. In yeast, the δ-subunit links the membrane-embedded F(o) part to the matrix-facing central stalk of F(1). We used genetic interference and an inhibitor to investigate the molecular function and physiological impact of the δ-subunit in Arabidopsis thaliana. Delta mutants displayed both male and female gametophyte defects. RNA interference of delta resulted in growth retardation, reduced ATP synthase amounts, and increased alternative oxidase capacity and led to specific long-term increases in Ala and Gly levels. By contrast, inhibition of the complex using oligomycin triggered broad metabolic changes, affecting glycolysis and the tricarboxylic acid cycle, and led to a successive induction of transcripts for alternative respiratory pathways and for redox and biotic stress-related transcription factors. We conclude that (1) the δ-subunit is essential for male gametophyte development in Arabidopsis, (2) a disturbance of the ATP synthase appears to lead to an early transition phase and a long-term metabolic steady state, and (3) the observed long-term adjustments in mitochondrial metabolism are linked to reduced growth and deficiencies in gametophyte development.
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Affiliation(s)
- Daniela A. Geisler
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
| | - Carola Päpke
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
| | - Toshihiro Obata
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
| | - Adriano Nunes-Nesi
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-000 Minas Gerais, Brazil
| | - Annemarie Matthes
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
| | - Kay Schneitz
- Entwicklungsbiologie der Pflanzen, Technische Universität München, 85354 Freising, Germany
| | - Eugenia Maximova
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
| | - Wagner L. Araújo
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-000 Minas Gerais, Brazil
| | - Alisdair R. Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
| | - Staffan Persson
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, D-14476 Potsdam-Golm, Germany
- Address correspondence to
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48
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Araújo WL, Tohge T, Osorio S, Lohse M, Balbo I, Krahnert I, Sienkiewicz-Porzucek A, Usadel B, Nunes-Nesi A, Fernie AR. Antisense inhibition of the 2-oxoglutarate dehydrogenase complex in tomato demonstrates its importance for plant respiration and during leaf senescence and fruit maturation. THE PLANT CELL 2012; 24:2328-51. [PMID: 22751214 PMCID: PMC3406899 DOI: 10.1105/tpc.112.099002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 05/24/2012] [Accepted: 06/10/2012] [Indexed: 05/18/2023]
Abstract
Transgenic tomato (Solanum lycopersicum) plants expressing a fragment of the gene encoding the E1 subunit of the 2-oxoglutarate dehydrogenase complex in the antisense orientation and exhibiting substantial reductions in the activity of this enzyme exhibit a considerably reduced rate of respiration. They were, however, characterized by largely unaltered photosynthetic rates and fruit yields but restricted leaf, stem, and root growth. These lines displayed markedly altered metabolic profiles, including changes in tricarboxylic acid cycle intermediates and in the majority of the amino acids but unaltered pyridine nucleotide content both in leaves and during the progression of fruit ripening. Moreover, they displayed a generally accelerated development exhibiting early flowering, accelerated fruit ripening, and a markedly earlier onset of leaf senescence. In addition, transcript and selective hormone profiling of gibberellins and abscisic acid revealed changes only in the former coupled to changes in transcripts encoding enzymes of gibberellin biosynthesis. The data obtained are discussed in the context of the importance of this enzyme in both photosynthetic and respiratory metabolism as well as in programs of plant development connected to carbon-nitrogen interactions.
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Affiliation(s)
- Wagner L. Araújo
- Max-Planck-Institut für Molekular Pflanzenphysiologie, 14476 Potsdam-Golm, Germany
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-000 Viçosa, Minas Gerais, Brazil
| | - Takayuki Tohge
- Max-Planck-Institut für Molekular Pflanzenphysiologie, 14476 Potsdam-Golm, Germany
| | - Sonia Osorio
- Max-Planck-Institut für Molekular Pflanzenphysiologie, 14476 Potsdam-Golm, Germany
| | - Marc Lohse
- Max-Planck-Institut für Molekular Pflanzenphysiologie, 14476 Potsdam-Golm, Germany
| | - Ilse Balbo
- Max-Planck-Institut für Molekular Pflanzenphysiologie, 14476 Potsdam-Golm, Germany
| | - Ina Krahnert
- Max-Planck-Institut für Molekular Pflanzenphysiologie, 14476 Potsdam-Golm, Germany
| | | | - Björn Usadel
- Max-Planck-Institut für Molekular Pflanzenphysiologie, 14476 Potsdam-Golm, Germany
- RWTH Aachen University, Institute for Biology 1, 52062 Aachen, Germany
| | - Adriano Nunes-Nesi
- Max-Planck-Partner Group, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-000 Viçosa, Minas Gerais, Brazil
| | - Alisdair R. Fernie
- Max-Planck-Institut für Molekular Pflanzenphysiologie, 14476 Potsdam-Golm, Germany
- Address correspondence to
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He J, Duan Y, Hua D, Fan G, Wang L, Liu Y, Chen Z, Han L, Qu LJ, Gong Z. DEXH box RNA helicase-mediated mitochondrial reactive oxygen species production in Arabidopsis mediates crosstalk between abscisic acid and auxin signaling. THE PLANT CELL 2012; 24:1815-33. [PMID: 22652060 PMCID: PMC3442571 DOI: 10.1105/tpc.112.098707] [Citation(s) in RCA: 221] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
It is well known that abscisic acid (ABA) promotes reactive oxygen species (ROS) production through plasma membrane-associated NADPH oxidases during ABA signaling. However, whether ROS from organelles can act as second messengers in ABA signaling is largely unknown. Here, we identified an ABA overly sensitive mutant, abo6, in a genetic screen for ABA-mediated inhibition of primary root growth. ABO6 encodes a DEXH box RNA helicase that is involved in regulating the splicing of several genes of complex I in mitochondria. The abo6 mutant accumulated more ROS in mitochondria, as established using a mitochondrial superoxide indicator, circularly permuted yellow fluorescent protein. Two dominant-negative mutations in ABA insensitive1 (abi1-1) and abi2-1 greatly reduced ROS production in mitochondria. The ABA sensitivity of abo6 can also be compromised by the atrbohF mutation. ABA-mediated inhibition of seed germination and primary root growth in abo6 was released by the addition of reduced GSH and exogenous auxin to the medium. Expression of auxin-responsive markers ProDR5:GUS (for synthetic auxin response element D1-4 with site-directed mutants in the 5'-end from soybean):β-glucuronidase) and Indole-3-acetic acid inducible2:GUS was greatly reduced by the abo6 mutation. Hence, our results provide molecular evidence for the interplay between ABA and auxin through the production of ROS from mitochondria. This interplay regulates primary root growth and seed germination in Arabidopsis thaliana.
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Affiliation(s)
- Junna He
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Ying Duan
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Deping Hua
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Guangjiang Fan
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Li Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yue Liu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhizhong Chen
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Lihua Han
- State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing 100871, China
- National Center for Plant Gene Research, Beijing 100193, China
| | - Li-Jia Qu
- State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing 100871, China
- National Center for Plant Gene Research, Beijing 100193, China
| | - Zhizhong Gong
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
- National Center for Plant Gene Research, Beijing 100193, China
- China Agricultural University–Purdue University Joint Research Center, Beijing 100193, China
- Address correspondence to
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50
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Welchen E, Hildebrandt TM, Lewejohann D, Gonzalez DH, Braun HP. Lack of cytochrome c in Arabidopsis decreases stability of Complex IV and modifies redox metabolism without affecting Complexes I and III. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2012; 1817:990-1001. [PMID: 22551905 DOI: 10.1016/j.bbabio.2012.04.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 04/09/2012] [Accepted: 04/11/2012] [Indexed: 12/12/2022]
Abstract
We studied the role of cytochrome c (CYTc), which mediates electron transfer between Complexes III and IV, in cellular events related with mitochondrial respiration, plant development and redox homeostasis. We analyzed single and double homozygous mutants in both CYTc-encoding genes from Arabidopsis: CYTC-1 and CYTC-2. While individual mutants were similar to wild-type, knock-out of both genes produced an arrest of embryo development, showing that CYTc function is essential at early stages of plant development. Mutants in which CYTc levels were extremely reduced respective to wild-type had smaller rosettes with a pronounced decrease in parenchymatic cell size and an overall delay in development. Mitochondria from these mutants had lower respiration rates and a relative increase in alternative respiration. Furthermore, the decrease in CYTc severely affected the activity and the amount of Complex IV, without affecting Complexes I and III. Reactive oxygen species levels were reduced in these mutants, which showed induction of genes encoding antioxidant enzymes. Ascorbic acid levels were not affected, suggesting that a small amount of CYTc is enough to support its normal synthesis. We postulate that, in addition to its role as an electron carrier between Complexes III and IV, CYTc influences Complex IV levels in plants, probably reflecting a role of this protein in Complex IV stability. This double function of CYTc most likely explains why it is essential for plant survival.
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Affiliation(s)
- Elina Welchen
- Instituto de Agrobiotecnología del Litoral (IAL), CONICET, Universidad Nacional del Litoral, Santa Fe, Argentina.
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