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Li J, Su Y, Shapiro CA, Schachtman DP, Wang X. Phosphate deficiency modifies lipid composition and seed oil production in camelina. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 330:111636. [PMID: 36791961 PMCID: PMC10065961 DOI: 10.1016/j.plantsci.2023.111636] [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: 11/23/2022] [Revised: 01/24/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Camelina (Camelina sativa) is an emerging industrial oilseed crop because of its potential for double cropping, fallow year production, growth on marginal lands, and multiple uses of seed oils and meals. To realize the potential for sustainable production of camelina, a better understanding of how camelina seed oil production and composition respond to low input environments is desired. Phosphorus (P) is one of the least available essential macronutrients to plants with finite worldwide supply. This study investigated seed oil production and lipid composition of camelina in field settings and under greenhouse conditions in response to P deficiency. Lipidomic profiling reveals that P deficiency in field settings triggered extensive leaf lipid remodeling that decreased the ratio of phospholipids to non-P-containing galactolipids from 30% to 5% under P sufficient to deficient conditions. P deficiency increased seed oil content per seed weight by approximately 25% and 20% in field and greenhouse settings, respectively. In addition, P deficiency altered seed fatty acid composition, with increases in monounsaturated 18:1 and 20:1 and decreases in polyunsaturated 18:3. Total seed production was decreased by 10- to 15-fold under P deficiency and the decrease resulted from reduced seed numbers without affecting seed weight. The results from field and greenhouse conditions indicate that P deficiency increases seed oil content, alters fatty acid composition, and decreases greatly seed production, suggesting that achieving a high yield and quality of camelina seed oil is positively linked to P status of soil.
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Affiliation(s)
- Jianwu Li
- Department of Biology, University of Missouri - St. Louis, St. Louis, MO 63121, USA; Donald Danforth Plant Science Center, St. Louis, MO 63132, USA.
| | - Yuan Su
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, China.
| | - Charles A Shapiro
- Department of Agronomy and Horticulture, University of Nebraska - Lincoln, Lincoln, NE 68588, USA.
| | - Daniel P Schachtman
- Department of Agronomy and Horticulture, University of Nebraska - Lincoln, Lincoln, NE 68588, USA; Center for Plant Science Innovation, University of Nebraska - Lincoln, Lincoln, NE 68588, USA.
| | - Xuemin Wang
- Department of Biology, University of Missouri - St. Louis, St. Louis, MO 63121, USA; Donald Danforth Plant Science Center, St. Louis, MO 63132, USA.
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Shu Y, Huang G, Zhang Q, Peng S, Li Y. Reduction of photosynthesis under P deficiency is mainly caused by the decreased CO 2 diffusional capacities in wheat (Triticum aestivum L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 198:107680. [PMID: 37031546 DOI: 10.1016/j.plaphy.2023.107680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/13/2023] [Accepted: 04/03/2023] [Indexed: 05/07/2023]
Abstract
Phosphorus is one of the most important essential mineral elements for plant growth and development. It has been widely recognized that phosphorus deficiency can lead to the significant declines in leaf photosynthetic rate and leaf area. However, the internal mechanism associated with the leaf anatomical traits has not been well understood. In present study, a hydroponic experiment was conducted to study the effect of phosphorus deficiency on leaf growth and photosynthesis in Jimai 22 (JM22, Triticum aestivum L.) and Suk Landarace 26 (SL26, Triticum aestivum L.). With the decrease in phosphorus concentration, leaf photosynthetic rate and leaf area in SL26 and JM22 all decreased significantly, but the decrease in leaf area occurred earlier than that in leaf photosynthetic rate. The thresholds of phosphorus concentration to maintain a high photosynthesis were 145.5 and 138.7 mg m-2, respectively, in SL26 and JM22; and they were 197.5 and 212.0 mg m-2, respectively, for leaf growth. The decrease in leaf photosynthetic rate under low P conditions was mainly caused by the lowered stomatal conductance and mesophyll conductance, and to a less extent by the decrease in biochemical capacities. The decrease in stomatal conductance was attributed to the smaller vascular bundle area, xylem conduits area and the lower leaf hydraulic conductance. However, the reduction in mesophyll conductance was not related to either the cell wall thickness or the development of chloroplast.
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Affiliation(s)
- Yu Shu
- National Key Laboratory of Crop Genetic Improvement, Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China.
| | - Guanjun Huang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China.
| | - Qiangqiang Zhang
- National Key Laboratory of Crop Genetic Improvement, Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China.
| | - Shaobing Peng
- National Key Laboratory of Crop Genetic Improvement, Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China.
| | - Yong Li
- National Key Laboratory of Crop Genetic Improvement, Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China.
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3
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Xu C, Xu J, Tang HW, Ericsson M, Weng JH, DiRusso J, Hu Y, Ma W, Asara JM, Perrimon N. A phosphate-sensing organelle regulates phosphate and tissue homeostasis. Nature 2023; 617:798-806. [PMID: 37138087 PMCID: PMC10443203 DOI: 10.1038/s41586-023-06039-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 03/31/2023] [Indexed: 05/05/2023]
Abstract
Inorganic phosphate (Pi) is one of the essential molecules for life. However, little is known about intracellular Pi metabolism and signalling in animal tissues1. Following the observation that chronic Pi starvation causes hyperproliferation in the digestive epithelium of Drosophila melanogaster, we determined that Pi starvation triggers the downregulation of the Pi transporter PXo. In line with Pi starvation, PXo deficiency caused midgut hyperproliferation. Interestingly, immunostaining and ultrastructural analyses showed that PXo specifically marks non-canonical multilamellar organelles (PXo bodies). Further, by Pi imaging with a Förster resonance energy transfer (FRET)-based Pi sensor2, we found that PXo restricts cytosolic Pi levels. PXo bodies require PXo for biogenesis and undergo degradation following Pi starvation. Proteomic and lipidomic characterization of PXo bodies unveiled their distinct feature as an intracellular Pi reserve. Therefore, Pi starvation triggers PXo downregulation and PXo body degradation as a compensatory mechanism to increase cytosolic Pi. Finally, we identified connector of kinase to AP-1 (Cka), a component of the STRIPAK complex and JNK signalling3, as the mediator of PXo knockdown- or Pi starvation-induced hyperproliferation. Altogether, our study uncovers PXo bodies as a critical regulator of cytosolic Pi levels and identifies a Pi-dependent PXo-Cka-JNK signalling cascade controlling tissue homeostasis.
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Affiliation(s)
- Chiwei Xu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
- Robin Chemers Neustein Laboratory of Mammalian Development and Cell Biology, The Rockefeller University, New York, NY, USA.
| | - Jun Xu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hong-Wen Tang
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Maria Ericsson
- Department of Cell Biology, Electron Microscopy Facility, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Jui-Hsia Weng
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Jonathan DiRusso
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Yanhui Hu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Wenzhe Ma
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA
| | - John M Asara
- Department of Medicine, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Signal Transduction, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Norbert Perrimon
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA.
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Honda S, Yamazaki Y, Mukada T, Cheng W, Chuba M, Okazaki Y, Saito K, Oikawa A, Maruyama H, Wasaki J, Wagatsuma T, Tawaraya K. Lipidome Profiling of Phosphorus Deficiency-Tolerant Rice Cultivars Reveals Remodeling of Membrane Lipids as a Mechanism of Low P Tolerance. PLANTS (BASEL, SWITZERLAND) 2023; 12:1365. [PMID: 36987053 PMCID: PMC10057753 DOI: 10.3390/plants12061365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
Plants have evolved various mechanisms for low P tolerance, one of which is changing their membrane lipid composition by remodeling phospholipids with non-phospholipids. The objective of this study was to investigate the remodeling of membrane lipids among rice cultivars under P deficiency. Rice (Oryza sativa L.) cultivars (Akamai, Kiyonishiki, Akitakomachi, Norin No. 1, Hiyadateine, Koshihikari, and Netaro) were grown in 0 (-P) and 8 (+P) mg P L-1 solution cultures. Shoots and roots were collected 5 and 10 days after transplanting (DAT) in solution culture and subjected to lipidome profiling using liquid chromatography-mass spectrometry. Phosphatidylcholine (PC)34, PC36, phosphatidylethanolamine (PE)34, PE36, phosphatidylglycerol (PG)34, phosphatidylinositol (PI)34 were the major phospholipids and digalactosyldiacylglycerol (DGDG)34, DGDG36, 1,2-diacyl-3-O-alpha-glucuronosylglycerol (GlcADG)34, GlcADG36, monogalactosyldiacylglycerol (MGDG)34, MGDG36, sulfoquinovosyldiacylglycerol (SQDG)34 and SQDG36 were the major non-phospholipids. Phospholipids were lower in the plants that were grown under -P conditions than that in the plants that were grown under +P for all cultivars at 5 and 10 DAT. The levels of non-phospholipids were higher in -P plants than that in +P plants of all cultivars at 5 and 10 DAT. Decomposition of phospholipids in roots at 5 DAT correlated with low P tolerance. These results suggest that rice cultivars remodel membrane lipids under P deficiency, and the ability of remodeling partly contributes to low P tolerance.
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Affiliation(s)
- Soichiro Honda
- Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan
| | - Yumiko Yamazaki
- Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan
| | - Takumi Mukada
- Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan
| | - Weiguo Cheng
- Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan
| | - Masaru Chuba
- Yamagata Integrated Agricultural Research Center, Tsuruoka 997-7601, Japan
| | - Yozo Okazaki
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - Akira Oikawa
- Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - Hayato Maruyama
- Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Jun Wasaki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima 739-8521, Japan
| | - Tadao Wagatsuma
- Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan
| | - Keitaro Tawaraya
- Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan
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Wei Y, Chong Z, Lu C, Li K, Liang C, Meng Z, Wang Y, Guo S, He L, Zhang R. Genome-wide identification and expression analysis of the cotton patatin-related phospholipase A genes and response to stress tolerance. PLANTA 2023; 257:49. [PMID: 36752875 DOI: 10.1007/s00425-023-04081-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
Patatin-related phospholipase A genes were involved in the response of Gossypium hirsutum to drought and salt tolerance. pPLA (patatin-related phospholipase A) is a key enzyme that catalyzes the initial step of lipid hydrolysis, which is involved in biological processes, such as drought, salt stress, and freezing injury. However, a comprehensive analysis of the pPLA gene family in cotton, especially the role of pPLA in the response to drought and salt tolerance, has not been reported so far. A total of 33 pPLA genes were identified in this study using a genome-wide search approach, and phylogenetic analysis classified these genes into three groups. These genes are unevenly distributed on the 26 chromosomes of cotton, and most of them contain a few introns. The results of the collinear analysis showed that G. hirsutum contained 1-5 copies of each pPLA gene found in G. arboreum and G. raimondii. The subcellular localization analysis of Gh_D08G061200 showed that the protein was localized in the nucleus. In addition, analysis of published upland cotton transcriptome data revealed that six GhPLA genes were expressed in various tissues and organs. Two genes (Gh_A04G142100.1 and Gh_D04G181000.1) were highly expressed in all tissues under normal conditions, showing the expression characteristics of housekeeping genes. Under different drought and salt tolerance stresses, we detected four genes with different expression levels. This study helps to clarify the role of pPLA in the response to drought and salt tolerance.
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Affiliation(s)
- Yunxiao Wei
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China
| | - Zhili Chong
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China
- College of Plant Science, Tarim University, 1487 East Tarim Avenue, Aral City, 843300, China
| | - Chao Lu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China
| | - Kaili Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China
| | - Chengzhen Liang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China
| | - Zhigang Meng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China
| | - Yuan Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China
| | - Sandui Guo
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China
| | - Liangrong He
- College of Plant Science, Tarim University, 1487 East Tarim Avenue, Aral City, 843300, China.
| | - Rui Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun, Nandajie No. 12, Haidian District, Beijing, 100081, China.
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Kalachova T, Škrabálková E, Pateyron S, Soubigou-Taconnat L, Djafi N, Collin S, Sekereš J, Burketová L, Potocký M, Pejchar P, Ruelland E. DIACYLGLYCEROL KINASE 5 participates in flagellin-induced signaling in Arabidopsis. PLANT PHYSIOLOGY 2022; 190:1978-1996. [PMID: 35900211 PMCID: PMC9614507 DOI: 10.1093/plphys/kiac354] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/18/2022] [Indexed: 05/04/2023]
Abstract
Flagellin perception is a keystone of pattern-triggered immunity in plants. The recognition of this protein by a plasma membrane (PM) receptor complex is the beginning of a signaling cascade that includes protein phosphorylation and the production of reactive oxygen species (ROS). In both Arabidopsis (Arabidopsis thaliana) seedlings and suspension cells, we found that treatment with flg22, a peptide corresponding to the most conserved domain of bacterial flagellin, caused a rapid and transient decrease in the level of phosphatidylinositol (PI) 4,5-bisphosphate along with a parallel increase in phosphatidic acid (PA). In suspension cells, inhibitors of either phosphoinositide-dependent phospholipases C (PLC) or diacylglycerol kinases (DGKs) inhibited flg22-triggered PA production and the oxidative burst. In response to flg22, receptor-like kinase-deficient fls2, bak1, and bik1 mutants (FLAGELLIN SENSITIVE 2, BRASSINOSTEROID INSENSITIVE 1-associated kinase 1, and BOTRYTIS-INDUCED KINASE 1, respectively) produced less PA than wild-type (WT) plants, whereas this response did not differ in NADPH oxidase-deficient rbohD (RESPIRATORY BURST OXIDASE HOMOLOG D) plants. Among the DGK-deficient lines tested, the dgk5.1 mutant produced less PA and less ROS after flg22 treatment compared with WT seedlings. In response to flg22, dgk5.1 plants showed lower callose accumulation and impaired resistance to Pseudomonas syringae pv. tomato DC3000 hrcC-. Transcriptomics revealed that the basal expression of defense-related genes was altered in dgk5.1 seedlings compared with the WT. A GFP-DGK5 fusion protein localized to the PM, where RBOHD and PLC2 (proteins involved in plant immunity) are also located. The role of DGK5 and its enzymatic activity in flagellin signaling and fine-tuning of early immune responses in plant-microbe interactions is discussed.
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Affiliation(s)
- Tetiana Kalachova
- Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Eliška Škrabálková
- Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
- Department of Experimental Plant Biology, Charles University, Viničná 5, Prague 12844, Czech Republic
| | - Stéphanie Pateyron
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Bâtiment 630, 91405 Orsay, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, 91405 Orsay, France
| | - Ludivine Soubigou-Taconnat
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Bâtiment 630, 91405 Orsay, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, 91405 Orsay, France
| | - Nabila Djafi
- Laboratoire de Physiologie Cellulaire et Moléculaire des Plantes, Sorbonne Université, F-75005 Paris, France
| | - Sylvie Collin
- Laboratoire de Physiologie Cellulaire et Moléculaire des Plantes, Sorbonne Université, F-75005 Paris, France
| | - Juraj Sekereš
- Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Lenka Burketová
- Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Martin Potocký
- Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
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Kohli PS, Pazhamala LT, Mani B, Thakur JK, Giri J. Root hair-specific transcriptome reveals response to low phosphorus in Cicer arietinum. FRONTIERS IN PLANT SCIENCE 2022; 13:983969. [PMID: 36267945 PMCID: PMC9577374 DOI: 10.3389/fpls.2022.983969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/16/2022] [Indexed: 06/16/2023]
Abstract
Root hairs (RH) are a single-cell extension of root epidermal cells. In low phosphorus (LP) availability, RH length and density increase thus expanding the total root surface area for phosphate (Pi) acquisition. However, details on genes involved in RH development and response to LP are missing in an agronomically important leguminous crop, chickpea. To elucidate this response in chickpea, we performed tissue-specific RNA-sequencing and analyzed the transcriptome modulation for RH and root without RH (Root-RH) under LP. Root hair initiation and cellular differentiation genes like RSL TFs and ROPGEFs are upregulated in Root-RH, explaining denser, and ectopic RH in LP. In RH, genes involved in tip growth processes and phytohormonal biosynthesis like cell wall synthesis and loosening (cellulose synthase A catalytic subunit, CaEXPA2, CaGRP2, and CaXTH2), cytoskeleton/vesicle transport, and ethylene biosynthesis are upregulated. Besides RH development, genes involved in LP responses like lipid and/or pectin P remobilization and acid phosphatases are induced in these tissues summarizing a complete molecular response to LP. Further, RH displayed preferential enrichment of processes involved in symbiotic interactions, which provide an additional benefit during LP. In conclusion, RH shows a multi-faceted response that starts with molecular changes for epidermal cell differentiation and RH initiation in Root-RH and later induction of tip growth and various LP responses in elongated RH.
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Affiliation(s)
| | | | - Balaji Mani
- National Institute of Plant Genome Research (NIPGR), New Delhi, India
| | - Jitendra Kumar Thakur
- National Institute of Plant Genome Research (NIPGR), New Delhi, India
- International Center of Genetic Engineering and Biotechnology, New Delhi, India
| | - Jitender Giri
- National Institute of Plant Genome Research (NIPGR), New Delhi, India
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Silva FMDO, Bulgarelli RG, Mubeen U, Caldana C, Andrade SAL, Mazzafera P. Low phosphorus induces differential metabolic responses in eucalyptus species improving nutrient use efficiency. FRONTIERS IN PLANT SCIENCE 2022; 13:989827. [PMID: 36186027 PMCID: PMC9520260 DOI: 10.3389/fpls.2022.989827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/11/2022] [Indexed: 06/16/2023]
Abstract
Phosphorus (P) is a vital nutrient for plant growth. P availability is generally low in soils, and plant responses to low P availability need to be better understood. In a previous study, we studied the growth and physiological responses of 24 species to low P availability in the soil and verified of eucalypts, five (Eucalyptus acmenoides, E. grandis, E. globulus, E. tereticornis, and Corymbia maculata) contrasted regarding their efficiency and responsiveness to soil P availability. Here, we obtained the metabolomic and lipidomic profile of leaves, stems, and roots from these species growing under low (4.5 mg dm-3) and sufficient (10.8 mg dm-3) P in the soil. Disregarding the level of P in the soils, P allocation was always higher in the stems. However, when grown in the P-sufficient soil, the stems steadily were the largest compartment of the total plant P. Under low P, the relative contents of primary metabolites, such as amino acids, TCA cycle intermediates, organic acids and carbohydrates, changed differently depending on the species. Additionally, phosphorylated metabolites showed enhanced turnover or reductions. While photosynthetic efficiencies were not related to higher biomass production, A/Ci curves showed that reduced P availability increased the eucalypt species' Vcmax, Jmax and photosynthetic P-use efficiency. Plants of E. acmenoides increased galactolipids and sulfolipids in leaves more than other eucalypt species, suggesting that lipid remodelling can be a strategy to cope with the P shortage in this species. Our findings offer insights to understand genotypic efficiency among eucalypt species to accommodate primary metabolism under low soil P availability and eventually be used as biochemical markers for breeding programs.
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Affiliation(s)
| | | | - Umarah Mubeen
- Department of Molecular Physiology, Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Camila Caldana
- Department of Molecular Physiology, Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Sara Adrian L. Andrade
- Department of Plant Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
| | - Paulo Mazzafera
- Department of Plant Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
- Department of Crop Production, Luiz de Queiroz College of Agriculture, University of São Paulo, São Paulo, Brazil
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9
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Sugimura Y, Kawahara A, Maruyama H, Ezawa T. Plant Foraging Strategies Driven by Distinct Genetic Modules: Cross-Ecosystem Transcriptomics Approach. FRONTIERS IN PLANT SCIENCE 2022; 13:903539. [PMID: 35860530 PMCID: PMC9290524 DOI: 10.3389/fpls.2022.903539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Plants have evolved diverse strategies for foraging, e.g., mycorrhizae, modification of root system architecture, and secretion of phosphatase. Despite extensive molecular/physiological studies on individual strategies under laboratory/greenhouse conditions, there is little information about how plants orchestrate these strategies in the field. We hypothesized that individual strategies are independently driven by corresponding genetic modules in response to deficiency/unbalance in nutrients. Roots colonized by mycorrhizal fungi, leaves, and root-zone soils were collected from 251 maize plants grown across the United States Corn Belt and Japan, which provided a large gradient of soil characteristics/agricultural practice and thus gene expression for foraging. RNA was extracted from the roots, sequenced, and subjected to gene coexpression network analysis. Nineteen genetic modules were defined and functionally characterized, from which three genetic modules, mycorrhiza formation, phosphate starvation response (PSR), and root development, were selected as those directly involved in foraging. The mycorrhizal module consists of genes responsible for mycorrhiza formation and was upregulated by both phosphorus and nitrogen deficiencies. The PSR module that consists of genes encoding phosphate transporter, secreted acid phosphatase, and enzymes involved in internal-phosphate recycling was regulated independent of the mycorrhizal module and strongly upregulated by phosphorus deficiency relative to nitrogen. The root development module that consists of regulatory genes for root development and cellulose biogenesis was upregulated by phosphorus and nitrogen enrichment. The expression of this module was negatively correlated with that of the mycorrhizal module, suggesting that root development is intrinsically an opposite strategy of mycorrhizae. Our approach provides new insights into understanding plant foraging strategies in complex environments at the molecular level.
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Affiliation(s)
- Yusaku Sugimura
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Ai Kawahara
- Health & Crop Sciences Research Laboratory, Sumitomo Chemical, Co., Ltd., Takarazuka, Japan
| | - Hayato Maruyama
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Tatsuhiro Ezawa
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
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10
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Han Y, Hong W, Xiong C, Lambers H, Sun Y, Xu Z, Schulze WX, Cheng L. Combining analyses of metabolite profiles and phosphorus fractions to explore high phosphorus utilization efficiency in maize. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:4184-4203. [PMID: 35303743 DOI: 10.1093/jxb/erac117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Phosphorus (P) limitation is a significant factor restricting crop production in agricultural systems, and enhancing the internal P utilization efficiency (PUE) of crops plays an important role in ensuring sustainable P use in agriculture. To better understand how P is remobilized to affect crop growth, we first screened P-efficient (B73 and GEMS50) and P-inefficient (Liao5114) maize genotypes at the same shoot P content, and then analyzed P pools and performed non-targeted metabolomic analyses to explore changes in cellular P fractions and metabolites in maize genotypes with contrasting PUE. We show that lipid P and nucleic acid P concentrations were significantly lower in lower leaves of P-efficient genotypes, and these P pools were remobilized to a major extent in P-efficient genotypes. Broad metabolic alterations were evident in leaves of P-efficient maize genotypes, particularly affecting products of phospholipid turnover and phosphorylated compounds, and the shikimate biosynthesis pathway. Taken together, our results suggest that P-efficient genotypes have a high capacity to remobilize lipid P and nucleic acid P and promote the shikimate pathway towards efficient P utilization in maize.
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Affiliation(s)
- Yang Han
- Department of Plant Nutrient, College of Resources and Environmental Sciences, Academy of National Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
| | - Wanting Hong
- Department of Plant Nutrient, College of Resources and Environmental Sciences, Academy of National Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
| | - Chuanyong Xiong
- Department of Plant Nutrient, College of Resources and Environmental Sciences, Academy of National Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
| | - Hans Lambers
- Department of Plant Nutrient, College of Resources and Environmental Sciences, Academy of National Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
- School of Biological Sciences and UWA Institute of Agriculture, University of Western Australia, Perth, WA 6009, Australia
| | - Yan Sun
- Department of Plant Nutrient, College of Resources and Environmental Sciences, Academy of National Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
| | - Zikai Xu
- Department of Plant Nutrient, College of Resources and Environmental Sciences, Academy of National Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
| | - Waltraud X Schulze
- Department of Plant Systems Biology, University of Hohenheim, D-70593 Stuttgart, Germany
| | - Lingyun Cheng
- Department of Plant Nutrient, College of Resources and Environmental Sciences, Academy of National Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
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11
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Hayes PE, Adem GD, Pariasca-Tanaka J, Wissuwa M. Leaf phosphorus fractionation in rice to understand internal phosphorus-use efficiency. ANNALS OF BOTANY 2022; 129:287-302. [PMID: 34875007 PMCID: PMC8835646 DOI: 10.1093/aob/mcab138] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/16/2021] [Indexed: 05/12/2023]
Abstract
BACKGROUND AND AIMS Phosphorus (P) availability is often limiting for rice (Oryza sativa) production. Improving internal P-use efficiency (PUE) is crucial to sustainable food production, particularly in low-input systems. A critical aspect of PUE in plants, and one that remains poorly understood, is the investment of leaf P in different chemical P fractions (nucleic acid-P, lipid-P, inorganic-P, metabolite-P and residual-P). The overarching objective of this study was to understand how these key P fractions influence PUE. METHODS Three high-PUE and two low-PUE rice genotypes were grown in hydroponics with contrasting P supplies. We measured PUE, total P, P fractions, photosynthesis and biomass. KEY RESULTS Low investment in lipid-P was strongly associated with increased photosynthetic PUE (PPUE), achieved by reducing total leaf P concentration while maintaining rapid photosynthetic rates. All low-P plants exhibited a low investment in inorganic-P and lipid-P, but not nucleic acid-P. In addition, whole-plant PUE was strongly associated with reduced total P concentration, increased biomass and increased preferential allocation of resources to the youngest mature leaves. CONCLUSIONS Lipid remodelling has been shown in rice before, but we show for the first time that reduced lipid-P investment improves PUE in rice without reducing photosynthesis. This presents a novel pathway for increasing PUE by targeting varieties with reduced lipid-P investment. This will benefit rice production in low-P soils and in areas where fertilizer use is limited, improving global food security by reducing P fertilizer demands and food production costs.
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Affiliation(s)
- Patrick E Hayes
- Crop, Livestock and Environment Division, Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki, Japan
- School of Biological Sciences, The University of Western Australia, Perth, Western Australia, Australia
- For correspondence. E-mail
| | - Getnet D Adem
- Crop, Livestock and Environment Division, Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki, Japan
| | - Juan Pariasca-Tanaka
- Crop, Livestock and Environment Division, Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki, Japan
| | - Matthias Wissuwa
- Crop, Livestock and Environment Division, Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki, Japan
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12
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Han Y, White PJ, Cheng L. Mechanisms for improving phosphorus utilization efficiency in plants. ANNALS OF BOTANY 2022; 129:247-258. [PMID: 34864840 PMCID: PMC8835619 DOI: 10.1093/aob/mcab145] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/02/2021] [Indexed: 05/26/2023]
Abstract
BACKGROUND Limitation of plant productivity by phosphorus (P) supply is widespread and will probably increase in the future. Relatively large amounts of P fertilizer are applied to sustain crop growth and development and to achieve high yields. However, with increasing P application, plant P efficiency generally declines, which results in greater losses of P to the environment with detrimental consequences for ecosystems. SCOPE A strategy for reducing P input and environmental losses while maintaining or increasing plant performance is the development of crops that take up P effectively from the soil (P acquisition efficiency) or promote productivity per unit of P taken up (P utilization efficiency). In this review, we describe current research on P metabolism and transport and its relevance for improving P utilization efficiency. CONCLUSIONS Enhanced P utilization efficiency can be achieved by optimal partitioning of cellular P and distributing P effectively between tissues, allowing maximum growth and biomass of harvestable plant parts. Knowledge of the mechanisms involved could help design and breed crops with greater P utilization efficiency.
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Affiliation(s)
- Yang Han
- College of Resources and Environmental Sciences; National Academy of Agriculture Green Development; Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
| | - Philip J White
- Department of Ecological Sciences, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Lingyun Cheng
- College of Resources and Environmental Sciences; National Academy of Agriculture Green Development; Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, PR China
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13
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Tabeta H, Higashi Y, Okazaki Y, Toyooka K, Wakazaki M, Sato M, Saito K, Hirai MY, Ferjani A. Skotomorphogenesis exploits threonine to promote hypocotyl elongation. QUANTITATIVE PLANT BIOLOGY 2022; 3:e26. [PMID: 37077988 PMCID: PMC10095960 DOI: 10.1017/qpb.2022.19] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/18/2022] [Accepted: 09/20/2022] [Indexed: 05/02/2023]
Abstract
Mobilisation of seed storage reserves is important for seedling establishment in Arabidopsis. In this process, sucrose is synthesised from triacylglycerol via core metabolic processes. Mutants with defects in triacylglycerol-to-sucrose conversion display short etiolated seedlings. We found that whereas sucrose content in the indole-3-butyric acid response 10 (ibr10) mutant was significantly reduced, hypocotyl elongation in the dark was unaffected, questioning the role of IBR10 in this process. To dissect the metabolic complexity behind cell elongation, a quantitative-based phenotypic analysis combined with a multi-platform metabolomics approach was applied. We revealed that triacylglycerol and diacylglycerol breakdown were disrupted in ibr10, resulting in low sugar content and poor photosynthetic ability. Importantly, batch-learning self-organised map clustering revealed that threonine level was correlated with hypocotyl length. Consistently, exogenous threonine supply stimulated hypocotyl elongation, indicating that sucrose levels are not always correlated with etiolated seedling length, suggesting the contribution of amino acids in this process.
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Affiliation(s)
- Hiromitsu Tabeta
- Department of Biology, Tokyo Gakugei University, Tokyo, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
| | | | - Yozo Okazaki
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- Graduate School of Bioresources, Mie University, Tsu, Japan
| | | | - Mayumi Wakazaki
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Mayuko Sato
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Masami Y Hirai
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Ali Ferjani
- Department of Biology, Tokyo Gakugei University, Tokyo, Japan
- Author for correspondence: A. Ferjani, E-mail:
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14
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Verma L, Kohli PS, Maurya K, K B A, Thakur JK, Giri J. Specific galactolipids species correlate with rice genotypic variability for phosphate utilization efficiency. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 168:105-115. [PMID: 34628172 DOI: 10.1016/j.plaphy.2021.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/15/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
Membrane lipid remodeling helps in the efficient utilization of phosphorus (P) by replacing phospholipids with galactolipids during P deficiency. Previous studies have shown lipid remodeling in rice under P deficiency; however, main lipid classes did not show association with superior P-use-efficiency in rice genotypes. Here, diverse rice genotypes were extensively phenotyped in normal (NP) and low P (LP) conditions. Based on the phenotypic response to P deficiency, genotypes were identified as tolerant and sensitive. Further, bulks were generated differing in their physiological P-use-efficiency (PPUE) during LP condition. Shoot lipidome profiling of genotypes was performed and used to correlate the abundance of various lipid classes and their constituent species with the PPUE of the genotypes. Lipid remodeling was observed as a P-starvation-induced response in all the genotypes. However, neither total galacto- and phospholipids nor the lipid classes correlated with PPUE during P deficiency. However, the difference in PPUE in the two bulks correlated with specific lipid species of galactolipids (DGDG, MGDG). Further, DGDG34:3 had the highest Mol% among the differentially accumulated lipid species between the two bulks. Our study reveals the importance of specific galactolipids species in rice adaptation to P deficient soils and thus opens new targets for future research.
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Affiliation(s)
- Lokesh Verma
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Pawandeep Singh Kohli
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Kanika Maurya
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Abhijith K B
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Jitendra K Thakur
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India; International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Jitender Giri
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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15
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Schillaci M, Kehelpannala C, Martinez-Seidel F, Smith PMC, Arsova B, Watt M, Roessner U. The Metabolic Response of Brachypodium Roots to the Interaction with Beneficial Bacteria Is Affected by the Plant Nutritional Status. Metabolites 2021; 11:metabo11060358. [PMID: 34205012 PMCID: PMC8228974 DOI: 10.3390/metabo11060358] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/20/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022] Open
Abstract
The potential of plant growth promoting (PGP) bacteria in improving the performance of plants in suboptimal environments is increasingly acknowledged, but little information is available on the mechanisms underlying this interaction, particularly when plants are subjected to a combination of stresses. In this study, we investigated the effects of the inoculation with the PGP bacteria Azospirillum brasilense (Azospirillum) on the metabolism of the model cereal Brachypodium distachyon (Brachypodium) grown at low temperatures and supplied with insufficient phosphorus. Investigating polar metabolite and lipid fluctuations during early plant development, we found that the bacteria initially elicited a defense response in Brachypodium roots, while at later stages Azospirillum reduced the stress caused by phosphorus deficiency and improved root development of inoculated plants, particularly by stimulating the growth of branch roots. We propose that the interaction of the plant with Azospirillum was influenced by its nutritional status: bacteria were sensed as pathogens while plants were still phosphorus sufficient, but the interaction became increasingly beneficial for the plants as their phosphorus levels decreased. Our results provide new insights on the dynamics of the cereal-PGP bacteria interaction, and contribute to our understanding of the role of beneficial microorganisms in the growth of cereal crops in suboptimal environments.
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Affiliation(s)
- Martino Schillaci
- School of BioSciences, University of Melbourne, Parkville 3010, Australia; (C.K.); (M.W.); (U.R.)
- Correspondence:
| | - Cheka Kehelpannala
- School of BioSciences, University of Melbourne, Parkville 3010, Australia; (C.K.); (M.W.); (U.R.)
| | - Federico Martinez-Seidel
- School of BioSciences, University of Melbourne, Parkville 3010, Australia; (C.K.); (M.W.); (U.R.)
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany;
| | - Penelope M. C. Smith
- Department of Animal, Plant, and Soil Sciences, School of Life Sciences, La Trobe University, Bundoora 3086, Australia;
| | - Borjana Arsova
- Institute for Bio & Geosciences, Plant Sciences (IBG-2), Forschungszentrum Juelich GmbH, 52425 Juelich, Germany;
| | - Michelle Watt
- School of BioSciences, University of Melbourne, Parkville 3010, Australia; (C.K.); (M.W.); (U.R.)
| | - Ute Roessner
- School of BioSciences, University of Melbourne, Parkville 3010, Australia; (C.K.); (M.W.); (U.R.)
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16
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Ye D, Clode PL, Hammer TA, Pang J, Lambers H, Ryan MH. Accumulation of phosphorus and calcium in different cells protects the phosphorus-hyperaccumulator Ptilotus exaltatus from phosphorus toxicity in high-phosphorus soils. CHEMOSPHERE 2021; 264:128438. [PMID: 33032230 DOI: 10.1016/j.chemosphere.2020.128438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/20/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
Ptilotus exaltatus accumulates phosphorus (P) to > 40 mg g-1 without toxicity symptoms, while Kennedia prostrata is intolerant of increased P supply. What physiological mechanisms underlie this difference and protect P. exaltatus from P toxicity? Ptilotus exaltatus and K. prostrata were grown in a sandy soil with low-P, high-P and P-pulse treatments. Both species hyperaccumulated P (>20 mg g-1) under high-P and P-pulse treatments; shoot dry weight was unchanged for P. exaltatus, but decreased by >50% for K. prostrata. Under high-P, in young fully-expanded leaves, both species accumulated P predominantly as inorganic P. However, P. exaltatus preferentially allocated P to mesophyll cells and stored calcium (Ca) as occasional crystals in specific lower mesophyll cells, separate from P, while K. prostrata preferentially allocated P to epidermal and spongy mesophyll cells, but co-located P and Ca in palisade mesophyll cells where granules with high [P] and [Ca] were evident. Mesophyll cellular [P] correlated positively with [potassium] for both species, and negatively with [sulfur] for P. exaltatus. Thus, P. exaltatus tolerated a very high leaf [inorganic P] (17 mg g-1), associated with P and Ca allocation to different cell types and formation of Ca crystals, thereby avoiding deleterious precipitation of Ca3(PO4)2. It also showed enhanced [potassium] and decreased [sulfur] to balance high cellular [P]. Phosphorus toxicity in K. prostrata arose from co-location of Ca and P in palisade mesophyll cells. This study advances understanding of leaf physiological mechanisms for high P tolerance in a P-hyperaccumulator and indicates P. exaltatus as a promising candidate for P-phytoextraction.
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Affiliation(s)
- Daihua Ye
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, Sichuan, 611130, China; UWA School of Biological Sciences, The University of Western Australia, 35 Stirling Hwy, Crawley (Perth), WA, 6009, Australia
| | - Peta L Clode
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Crawley (Perth), WA, 6009, Australia; UWA School of Biological Sciences, The University of Western Australia, 35 Stirling Hwy, Crawley (Perth), WA, 6009, Australia
| | - Timothy A Hammer
- UWA School of Biological Sciences, The University of Western Australia, 35 Stirling Hwy, Crawley (Perth), WA, 6009, Australia
| | - Jiayin Pang
- The UWA Institute of Agriculture, The University of Western Australia, Crawley (Perth), WA, 6009, Australia; School of Agriculture and Environment, The University of Western Australia, Crawley (Perth), WA, 6009, Australia
| | - Hans Lambers
- UWA School of Biological Sciences, The University of Western Australia, 35 Stirling Hwy, Crawley (Perth), WA, 6009, Australia; The UWA Institute of Agriculture, The University of Western Australia, Crawley (Perth), WA, 6009, Australia
| | - Megan H Ryan
- The UWA Institute of Agriculture, The University of Western Australia, Crawley (Perth), WA, 6009, Australia; School of Agriculture and Environment, The University of Western Australia, Crawley (Perth), WA, 6009, Australia.
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17
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Matsui H, Shiozaki K, Okumura Y, Ishikawa M, Waqalevu V, Hayasaka O, Honda A, Kotani T. Effects of phosphorous deficiency of a microalga Nannochloropsis oculata on its fatty acid profiles and intracellular structure and the effectiveness in rotifer nutrition. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101905] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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Koelmel JP, Napolitano MP, Ulmer CZ, Vasiliou V, Garrett TJ, Yost RA, Prasad MNV, Godri Pollitt KJ, Bowden JA. Environmental lipidomics: understanding the response of organisms and ecosystems to a changing world. Metabolomics 2020; 16:56. [PMID: 32307636 DOI: 10.1007/s11306-020-01665-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 03/13/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Understanding the interaction between organisms and the environment is important for predicting and mitigating the effects of global phenomena such as climate change, and the fate, transport, and health effects of anthropogenic pollutants. By understanding organism and ecosystem responses to environmental stressors at the molecular level, mechanisms of toxicity and adaptation can be determined. This information has important implications in human and environmental health, engineering biotechnologies, and understanding the interaction between anthropogenic induced changes and the biosphere. One class of molecules with unique promise for environmental science are lipids; lipids are highly abundant and ubiquitous across nearly all organisms, and lipid profiles often change drastically in response to external stimuli. These changes allow organisms to maintain essential biological functions, for example, membrane fluidity, as they adapt to a changing climate and chemical environment. Lipidomics can help scientists understand the historical and present biofeedback processes in climate change and the biogeochemical processes affecting nutrient cycles. Lipids can also be used to understand how ecosystems respond to historical environmental changes with lipid signatures dating back to hundreds of millions of years, which can help predict similar changes in the future. In addition, lipids are direct targets of environmental stressors, for example, lipids are easily prone to oxidative damage, which occurs during exposure to most toxins. AIM OF REVIEW This is the first review to summarize the current efforts to comprehensively measure lipids to better understand the interaction between organisms and their environment. This review focuses on lipidomic applications in the arenas of environmental toxicology and exposure assessment, xenobiotic exposures and health (e.g., obesity), global climate change, and nutrient cycles. Moreover, this review summarizes the use of and the potential for lipidomics in engineering biotechnologies for the remediation of persistent compounds and biofuel production. KEY SCIENTIFIC CONCEPT With the preservation of certain lipids across millions of years and our ever-increasing understanding of their diverse biological roles, lipidomic-based approaches provide a unique utility to increase our understanding of the contemporary and historical interactions between organisms, ecosystems, and anthropogenically-induced environmental changes.
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Affiliation(s)
- Jeremy P Koelmel
- Department of Chemistry, University of Florida, 125 Buckman Drive, Gainesville, FL, 32611, USA
- Department of Environmental Health Sciences, School of Public Health, Yale University, New Haven, CT, 06510, USA
| | - Michael P Napolitano
- CSS, Inc., under contract to National Oceanic and Atmospheric Administration, National Centers for Coastal Ocean Science, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, USA
| | - Candice Z Ulmer
- National Institute of Standards and Technology, Hollings Marine Laboratory, 331 Ft. Johnson Road, Charleston, SC, 29412, USA
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, School of Public Health, Yale University, New Haven, CT, 06510, USA
| | - Timothy J Garrett
- Department of Chemistry, University of Florida, 125 Buckman Drive, Gainesville, FL, 32611, USA
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Richard A Yost
- Department of Chemistry, University of Florida, 125 Buckman Drive, Gainesville, FL, 32611, USA
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - M N V Prasad
- Department of Plant Sciences, University of Hyderabad, Hyderabad, Telangana, 500046, India
| | - Krystal J Godri Pollitt
- Department of Environmental Health Sciences, School of Public Health, Yale University, New Haven, CT, 06510, USA
| | - John A Bowden
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, 1333 Center Drive, Gainesville, FL, 32610, USA.
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19
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Phosphoric Metabolites Link Phosphate Import and Polysaccharide Biosynthesis for Candida albicans Cell Wall Maintenance. mBio 2020; 11:mBio.03225-19. [PMID: 32184254 PMCID: PMC7078483 DOI: 10.1128/mbio.03225-19] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Candida species cause hundreds of thousands of invasive infections with high mortality each year. Developing novel antifungal agents is challenging due to the many similarities between fungal and human cells. Maintaining phosphate balance is essential for all organisms but is achieved completely differently by fungi and humans. A protein that imports phosphate into fungal cells, Pho84, is not present in humans and is required for normal cell wall stress resistance and cell wall integrity signaling in C. albicans. Nucleotide sugars, which are phosphate-containing building block molecules for construction of the cell wall, are diminished in cells lacking Pho84. Cell wall-constructing enzymes may be slowed by lack of these building blocks, in addition to being inhibited by drugs. Combined targeting of Pho84 and cell wall-constructing enzymes may provide a strategy for antifungal therapy by which two sequential steps of cell wall maintenance are blocked for greater potency. The Candida albicans high-affinity phosphate transporter Pho84 is required for normal Target of Rapamycin (TOR) signaling, oxidative stress resistance, and virulence of this fungal pathogen. It also contributes to C. albicans’ tolerance of two antifungal drug classes, polyenes and echinocandins. Echinocandins inhibit biosynthesis of a major cell wall component, beta-1,3-glucan. Cells lacking Pho84 were hypersensitive to other forms of cell wall stress beyond echinocandin exposure, while their cell wall integrity signaling response was weak. Metabolomics experiments showed that levels of phosphoric intermediates, including nucleotides like ATP and nucleotide sugars, were low in pho84 mutant compared to wild-type cells recovering from phosphate starvation. Nonphosphoric precursors like nucleobases and nucleosides were elevated. Outer cell wall phosphomannan biosynthesis requires a nucleotide sugar, GDP-mannose. The nucleotide sugar UDP-glucose is the substrate of enzymes that synthesize two major structural cell wall polysaccharides, beta-1,3- and beta-1,6-glucan. Another nucleotide sugar, UDP-N-acetylglucosamine, is the substrate of chitin synthases which produce a stabilizing component of the intercellular septum and of lateral cell walls. Lack of Pho84 activity, and phosphate starvation, potentiated pharmacological or genetic perturbation of these enzymes. We posit that low substrate concentrations of beta-d-glucan- and chitin synthases, together with pharmacologic inhibition of their activity, diminish enzymatic reaction rates as well as the yield of their cell wall-stabilizing products. Phosphate import is not conserved between fungal and human cells, and humans do not synthesize beta-d-glucans or chitin. Hence, inhibiting these processes simultaneously could yield potent antifungal effects with low toxicity to humans.
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20
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Irfan M, Aziz T, Maqsood MA, Bilal HM, Siddique KHM, Xu M. Phosphorus (P) use efficiency in rice is linked to tissue-specific biomass and P allocation patterns. Sci Rep 2020; 10:4278. [PMID: 32152340 PMCID: PMC7062884 DOI: 10.1038/s41598-020-61147-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 02/17/2020] [Indexed: 01/10/2023] Open
Abstract
Phosphorus (P) is a non-renewable resource which may be depleted within next few decades; hence high P use efficiency is need of time. Plants have evolved an array of adaptive mechanisms to enhance external P acquisition and reprioritize internal utilization under P deficiency. Tissue specific biomass and P allocation patterns may affect the P use efficiency in plants. six rice cultivars were grown in solution culture for 20 days and then were divided into two groups to receive either adequate P or no P that were harvested at 30, 40 and 50 days. Plants were dissected into various tissues/organs. Two rice cultivars viz Super Basmati (P-inefficient) and PS-2 (P-efficient) were grown in soil with no or 50 mg P kg-1 soil till maturity. Rice cultivars PS-2 and Basmati-2000 had higher P uptake, utilization efficiency and internal remobilization than other tested cultivars after P omission. Young leaves and roots were the major sinks while stems and mature leaves were the sources of P during P omission. In conclusion, biomass allocation and P accumulation among various tissues and P remobilization were major factors responsible for P efficiency.
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Affiliation(s)
- Muhammad Irfan
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
- Soil and Environmental Sciences Division, Nuclear Institute of Agriculture, Tandojam, 70060, Pakistan
| | - Tariq Aziz
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan.
- The UWA Institute of Agriculture and UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia.
| | - Muhammad Aamer Maqsood
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Hafiz Muhammad Bilal
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
- Department of Environmental Sciences, University of Okara, Okara, 56300, Pakistan
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture and UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia
| | - Minggang Xu
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agri. Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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21
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Cenzano AM, Arslan I. Comprehensive and quantitative profiling of lipid molecular species by LC-ESI-MS/MS of four native species from semiarid Patagonian Monte. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 146:447-456. [PMID: 31812010 DOI: 10.1016/j.plaphy.2019.11.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/15/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
The maintenance of lipid and fatty acids unsaturated composition has been described as one of the mechanisms associated to drought tolerance, but research about the lipid profile in native plants of semiarid environment is still limited. The primary objective was to study whether lipid profiles correlates with drought resistance strategies (tolerant or avoidant) of two life forms (shrubs and grasses). The lipid classes and molecular species of green leaves of Larrea divaricata and Lycium chilense shrubs and Pappostipa speciosa and Poa ligularis grasses were determined using LC-ESI-MS/MS. The soil water content was very low during spring and leaf relative water content was between 47 and 74% in the four species. Lipid profiling was different between both life forms. The prevalent compounds were digalactosyldiacylglycerol (DGDG), monogalactosyldiacylglycerol (MGDG) and phosphatidic acid (PA). The lipid signature shows that L. divaricata adjust its lipid composition to tolerate drought, increasing the content of: a) total lipids and total phospholipids, b) structural phospholipids (36:4 and 36:2-PC, phosphatidylcholine; 36:4-PE, phosphatidylethanolamine), c) chloroplast and mitochondria lipids (32:1 and 32:0-PG, phosphatidylglycerol; 34:3, 36:6 and 36:3-DGDG), d) signaling lipids (34:3, 34:2 and 36:5-PA and PI, phosphatidylinositol), and e) polyunsaturated fatty acids (PUFAs, 18:3 and 18:2) and long chain polyunsaturated fatty acids (LC-PUFAs, in 40:2 and 42:2-PS, phosphatidylserine). This membrane lipid composition contributes to membrane stabilization as metabolic-functional strategy for drought tolerance in the Patagonian Monte. In addition, the 18:3 present in lipids of both grasses could be incorporated to lamb fed based on pastures and result healthy for human dietary.
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Affiliation(s)
- Ana M Cenzano
- Laboratorio de Ecofisiología y Bioquímica Vegetal (ECOFIVE), Instituto Patagónico para el Estudio de los Ecosistemas Continentales- Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC- CONICET), Boulevard Brown 2915, CP 9120, Puerto Madryn, Chubut, Argentina.
| | - Idris Arslan
- Zonguldak Bulent Ecevit University, Faculty of Engineering, Biomedical Engineering Department, Incivez, 67100, Zonguldak, Turkey.
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22
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Sacchi GA, Nocito FF. Plant Sulfate Transporters in the Low Phytic Acid Network: Some Educated Guesses. PLANTS (BASEL, SWITZERLAND) 2019; 8:E616. [PMID: 31861241 PMCID: PMC6963184 DOI: 10.3390/plants8120616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/11/2019] [Accepted: 12/16/2019] [Indexed: 12/22/2022]
Abstract
A few new papers report that mutations in some genes belonging to the group 3 of plant sulfate transporter family result in low phytic acid phenotypes, drawing novel strategies and approaches for engineering the low-phytate trait in cereal grains. Here, we shortly review the current knowledge on phosphorus/sulfur interplay and sulfate transport regulation in plants, to critically discuss some hypotheses that could help in unveiling the physiological links between sulfate transport and phosphorus accumulation in seeds.
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Affiliation(s)
| | - Fabio Francesco Nocito
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, 20133 Milano, Italy;
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23
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Koelmel JP, Campbell JE, Guingab-Cagmat J, Meke L, Garrett TJ, Stingl U. Re-modeling of foliar membrane lipids in a seagrass allows for growth in phosphorus-deplete conditions. PLoS One 2019; 14:e0218690. [PMID: 31774814 PMCID: PMC6880972 DOI: 10.1371/journal.pone.0218690] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/10/2019] [Indexed: 11/18/2022] Open
Abstract
In this study, we used liquid chromatography high-resolution tandem mass spectrometry to analyze the lipidome of turtlegrass (Thalassia testudinum) leaves with either extremely high phosphorus content or extremely low phosphorus content. Most species of phospholipids were significantly down-regulated in phosphorus-deplete leaves, whereas diacylglyceryltrimethylhomoserine (DGTS), triglycerides (TG), galactolipid digalactosyldiacylglycerol (DGDG), certain species of glucuronosyldiacylglycerols (GlcADG), and certain species of sulfoquinovosyl diacylglycerol (SQDG) were significantly upregulated, accounting for the change in phosphorus content, as well as structural differences in the leaves of plants growing across regions of varying elemental availability. These data suggest that seagrasses are able to modify the phosphorus content in leaf membranes dependent upon environmental availability.
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Affiliation(s)
- Jeremy P. Koelmel
- University of Florida, Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Gainesville, Florida, United States of America
| | - Justin E. Campbell
- Florida International University, Department of Biological Sciences, Institute of Water and Environment, North Miami, FL, United States of America
| | - Joy Guingab-Cagmat
- University of Florida, Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Gainesville, Florida, United States of America
| | - Laurel Meke
- University of Florida, Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Gainesville, Florida, United States of America
| | - Timothy J. Garrett
- University of Florida, Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Gainesville, Florida, United States of America
| | - Ulrich Stingl
- University of Florida, UF/IFAS Fort Lauderdale Research and Education Center, Department of Microbiology & Cell Science, Davie, Florida, United States of America
- * E-mail:
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24
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Ben Halima N. New insights into phospholipases in oat (Avena sativa) from bioinformatic analysis. Int J Biol Macromol 2019; 133:804-810. [DOI: 10.1016/j.ijbiomac.2019.04.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/22/2019] [Accepted: 04/22/2019] [Indexed: 11/29/2022]
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25
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Nintemann SJ, Palmgren M, López-Marqués RL. Catch You on the Flip Side: A Critical Review of Flippase Mutant Phenotypes. TRENDS IN PLANT SCIENCE 2019; 24:468-478. [PMID: 30885637 DOI: 10.1016/j.tplants.2019.02.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/24/2019] [Accepted: 02/04/2019] [Indexed: 05/05/2023]
Abstract
Lipid flippases are integral membrane proteins that use ATP hydrolysis to power the generation of phospholipid asymmetry between the two leaflets of biological membranes, a process essential for cell survival. Although the first report of a plant lipid flippase was published in 2000, progress in the field has been slow, partially due to the high level of redundancy in this gene family. However, recently an increasing number of reports have examined the physiological function of lipid flippases, mainly in Arabidopsis thaliana. In this review we aim to summarize recent findings on the physiological relevance of lipid flippases in plant adaptation to a changing environment and caution against misinterpretation of pleiotropic effects in genetic studies of flippases.
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Affiliation(s)
- Sebastian J Nintemann
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871, Frederiksberg C, Denmark
| | - Michael Palmgren
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871, Frederiksberg C, Denmark
| | - Rosa Laura López-Marqués
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871, Frederiksberg C, Denmark; https://plen.ku.dk/english/research/transport_biology/blf/.
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26
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Mehra P, Pandey BK, Verma L, Giri J. A novel glycerophosphodiester phosphodiesterase improves phosphate deficiency tolerance in rice. PLANT, CELL & ENVIRONMENT 2019; 42:1167-1179. [PMID: 30307043 DOI: 10.1111/pce.13459] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 10/07/2018] [Indexed: 06/08/2023]
Abstract
Soil phosphate (Pi) deficiency is major constraint for rice cultivation worldwide. Cellular membranes account for one third of cellular organic phosphorus (P) in the form of phospholipids. Therefore, remobilization of Pi from membrane phospholipids under Pi deficiency can be an important strategy to improve phosphorus use efficiency. Glycerophosphodiester phosphodiesterases (GDPDs) hydrolyse intermediate product of phospholipid catabolism, glycerophosphodiesters to glycerol-3-phosphate, a precursor for P and non P-lipid biosynthesis. Here, we show that OsGDPD2 is a Pi deficiency responsive gene, which is transcriptionally regulated by OsPHR2. In silico analysis of active site residues and enzymatic assays confirmed phosphodiesterase activity of OsGDPD2. All overexpression lines showed higher GDPD activity, Pi content, root growth, and biomass accumulation as compared with wild type. Conversely, silencing of OsGDPD2 led to decreased GDPD activity and Pi content. Notably, most of the P-containing metabolites and fatty acids were elevated in transgenic lines. Further, quantitative analysis of polar lipids revealed higher accumulation of several classes of phospholipids and galactolipids in overexpression lines indicating a potential role of OsGDPD2 in de novo glycerolipid biosynthesis. Thus, present study provides insights into novel physiological roles of OsGDPD2 in low Pi acclimation in rice.
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Affiliation(s)
- Poonam Mehra
- National Institute of Plant Genome Research, New Delhi, India
| | - Bipin K Pandey
- National Institute of Plant Genome Research, New Delhi, India
| | - Lokesh Verma
- National Institute of Plant Genome Research, New Delhi, India
| | - Jitender Giri
- National Institute of Plant Genome Research, New Delhi, India
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27
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Ji T, Li S, Li L, Huang M, Wang X, Wei M, Shi Q, Li Y, Gong B, Yang F. Cucumber Phospholipase D alpha gene overexpression in tobacco enhanced drought stress tolerance by regulating stomatal closure and lipid peroxidation. BMC PLANT BIOLOGY 2018; 18:355. [PMID: 30547756 PMCID: PMC6293578 DOI: 10.1186/s12870-018-1592-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 12/06/2018] [Indexed: 05/04/2023]
Abstract
BACKGROUND Plant phospholipase D (PLD), which can hydrolyze membrane phospholipids to produce phosphatidic acid (PA), a secondary signaling molecule, has been proposed to function in diverse plant stress responses. Both PLD and PA play key roles in plant growth, development, and cellular processes. PLD was suggested to mediate the regulation of stomatal movements by abscisic acid (ABA) as a response to water deficit. In this research, we characterized the roles of the cucumber phospholipase D alpha gene (CsPLDα, GenBank accession number EF363796) in the growth and tolerance of transgenic tobacco (Nicotiana tabacum) to drought stress. RESULTS The CsPLDα overexpression in tobacco lines correlated with the ABA synthesis and metabolism, regulated the rapid stomatal closure in drought stress, and reduced the water loss. The NtNCED1 expression levels in the transgenic lines and wild type (WT) were sharply up-regulated after 16 days of drought stress compared with those before treatment, and the expression level in the transgenic lines was significantly higher than that in the WT. The NtAOG expression level evidently improved after 8 and 16 days compared with that at 0 day of treatment and was significantly lower in the transgenic lines than in the WT. The ABA content in the transgenic lines was significantly higher than that in the WT. The CsPLDα overexpression could increase the osmolyte content and reduce the ion leakage. The proline, soluble sugar, and soluble protein contents significantly increased. By contrast, the electrolytic leakage and malondialdehyde accumulation in leaves significantly decreased. The shoot and root fresh and dry weights of the overexpression lines significantly increased. These results indicated that a significant correlation between CsPLDα overexpression and improved resistance to water deficit. CONCLUSIONS The plants with overexpressed CsPLDα exhibited lower water loss, higher leaf relative water content, and heavier fresh and dry matter accumulation than the WT. We proposed that CsPLDα was involved in the ABA-dependent pathway in mediating the stomatal closure and preventing the elevation of intracellular solute potential.
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Affiliation(s)
- Tuo Ji
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
| | - Shuzhen Li
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
| | - Lujun Li
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
| | - Meili Huang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
| | - Xiufeng Wang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture, Tai’an, 271018 People’s Republic of China
| | - Min Wei
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
| | - Qinghua Shi
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture, Tai’an, 271018 People’s Republic of China
| | - Yan Li
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
| | - Biao Gong
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
| | - Fengjuan Yang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 People’s Republic of China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture, Tai’an, 271018 People’s Republic of China
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28
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LaBrant E, Barnes AC, Roston RL. Lipid transport required to make lipids of photosynthetic membranes. PHOTOSYNTHESIS RESEARCH 2018; 138:345-360. [PMID: 29961189 DOI: 10.1007/s11120-018-0545-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 06/20/2018] [Indexed: 05/21/2023]
Abstract
Photosynthetic membranes provide much of the usable energy for life on earth. To produce photosynthetic membrane lipids, multiple transport steps are required, including fatty acid export from the chloroplast stroma to the endoplasmic reticulum, and lipid transport from the endoplasmic reticulum to the chloroplast envelope membranes. Transport of hydrophobic molecules through aqueous space is energetically unfavorable and must be catalyzed by dedicated enzymes, frequently on specialized membrane structures. Here, we review photosynthetic membrane lipid transport to the chloroplast in the context of photosynthetic membrane lipid synthesis. We independently consider the identity of transported lipids, the proteinaceous transport components, and membrane structures which may allow efficient transport. Recent advances in lipid transport of chloroplasts, bacteria, and other systems strongly suggest that lipid transport is achieved by multiple mechanisms which include membrane contact sites with specialized protein machinery. This machinery is likely to include the TGD1, 2, 3 complex with the TGD5 and TGD4/LPTD1 systems, and may also include a number of proteins with domains similar to other membrane contact site lipid-binding proteins. Importantly, the likelihood of membrane contact sites does not preclude lipid transport by other mechanisms including vectorial acylation and vesicle transport. Substantial progress is needed to fully understand all photosynthetic membrane lipid transport processes and how they are integrated.
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Affiliation(s)
- Evan LaBrant
- Department of Biochemistry, University of Nebraska-Lincoln, 1901 Vine St, Lincoln, NE, 68588, USA
| | - Allison C Barnes
- Department of Biochemistry, University of Nebraska-Lincoln, 1901 Vine St, Lincoln, NE, 68588, USA
| | - Rebecca L Roston
- Department of Biochemistry, University of Nebraska-Lincoln, 1901 Vine St, Lincoln, NE, 68588, USA.
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29
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Dissanayaka DMSB, Plaxton WC, Lambers H, Siebers M, Marambe B, Wasaki J. Molecular mechanisms underpinning phosphorus-use efficiency in rice. PLANT, CELL & ENVIRONMENT 2018; 41:1483-1496. [PMID: 29520969 DOI: 10.1111/pce.13191] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 02/27/2018] [Accepted: 03/03/2018] [Indexed: 05/18/2023]
Abstract
Orthophosphate (H2 PO4- , Pi) is an essential macronutrient integral to energy metabolism as well as a component of membrane lipids, nucleic acids, including ribosomal RNA, and therefore essential for protein synthesis. The Pi concentration in the solution of most soils worldwide is usually far too low for maximum growth of crops, including rice. This has prompted the massive use of inefficient, polluting, and nonrenewable phosphorus (P) fertilizers in agriculture. We urgently need alternative and more sustainable approaches to decrease agriculture's dependence on Pi fertilizers. These include manipulating crops by (a) enhancing the ability of their roots to acquire limiting Pi from the soil (i.e. increased P-acquisition efficiency) and/or (b) increasing the total biomass/yield produced per molecule of Pi acquired from the soil (i.e. increased P-use efficiency). Improved P-use efficiency may be achieved by producing high-yielding plants with lower P concentrations or by improving the remobilization of acquired P within the plant so as to maximize growth and biomass allocation to developing organs. Membrane lipid remodelling coupled with hydrolysis of RNA and smaller P-esters in senescing organs fuels P remobilization in rice, the world's most important cereal crop.
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Affiliation(s)
- D M S B Dissanayaka
- Graduate School of Biosphere Science, Hiroshima University, Kagamiyama 1-7-1, Higashi-, Hiroshima, 739-8521, Japan
- Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, 20400, Sri Lanka
| | - William C Plaxton
- Department of Biology and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, K7L3N6, Canada
| | - Hans Lambers
- School of Biological Sciences and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley (Perth), Western Australia, 6009, Australia
| | - Meike Siebers
- Max-Planck-Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829, Cologne, Germany
| | - Buddhi Marambe
- Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, 20400, Sri Lanka
| | - Jun Wasaki
- Graduate School of Biosphere Science, Hiroshima University, Kagamiyama 1-7-1, Higashi-, Hiroshima, 739-8521, Japan
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30
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Krčková Z, Kocourková D, Daněk M, Brouzdová J, Pejchar P, Janda M, Pokotylo I, Ott PG, Valentová O, Martinec J. The Arabidopsis thaliana non-specific phospholipase C2 is involved in the response to Pseudomonas syringae attack. ANNALS OF BOTANY 2018; 121:297-310. [PMID: 29300825 PMCID: PMC5808806 DOI: 10.1093/aob/mcx160] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 10/24/2017] [Indexed: 05/20/2023]
Abstract
Background and Aims The non-specific phospholipase C (NPC) is a new member of the plant phospholipase family that reacts to abiotic environmental stresses, such as phosphate deficiency, high salinity, heat and aluminium toxicity, and is involved in root development, silicon distribution and brassinolide signalling. Six NPC genes (NPC1-NPC6) are found in the Arabidopsis genome. The NPC2 isoform has not been experimentally characterized so far. Methods The Arabidopsis NPC2 isoform was cloned and heterologously expressed in Escherichia coli. NPC2 enzyme activity was determined using fluorescent phosphatidylcholine as a substrate. Tissue expression and subcellular localization were analysed using GUS- and GFP-tagged NPC2. The expression patterns of NPC2 were analysed via quantitative real-time PCR. Independent homozygous transgenic plant lines overexpressing NPC2 under the control of a 35S promoter were generated, and reactive oxygen species were measured using a luminol-based assay. Key Results The heterologously expressed protein possessed phospholipase C activity, being able to hydrolyse phosphatidylcholine to diacylglycerol. NPC2 tagged with GFP was predominantly localized to the Golgi apparatus in Arabidopsis roots. The level of NPC2 transcript is rapidly altered during plant immune responses and correlates with the activation of multiple layers of the plant defence system. Transcription of NPC2 decreased substantially after plant infiltration with Pseudomonas syringae, flagellin peptide flg22 and salicylic acid treatments and expression of the effector molecule AvrRpm1. The decrease in NPC2 transcript levels correlated with a decrease in NPC2 enzyme activity. NPC2-overexpressing mutants showed higher reactive oxygen species production triggered by flg22. Conclusions This first experimental characterization of NPC2 provides new insights into the role of the non-specific phospholipase C protein family. The results suggest that NPC2 is involved in the response of Arabidopsis to P. syringae attack.
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Affiliation(s)
- Zuzana Krčková
- Institute of Experimental Botany of the Czech Academy of Sciences, Czech Republic
| | - Daniela Kocourková
- Institute of Experimental Botany of the Czech Academy of Sciences, Czech Republic
| | - Michal Daněk
- Institute of Experimental Botany of the Czech Academy of Sciences, Czech Republic
| | - Jitka Brouzdová
- Institute of Experimental Botany of the Czech Academy of Sciences, Czech Republic
| | - Přemysl Pejchar
- Institute of Experimental Botany of the Czech Academy of Sciences, Czech Republic
| | - Martin Janda
- Institute of Experimental Botany of the Czech Academy of Sciences, Czech Republic
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Czech Republic
| | - Igor Pokotylo
- The Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Ukraine
| | - Peter G Ott
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Hungary
| | - Olga Valentová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Czech Republic
| | - Jan Martinec
- Institute of Experimental Botany of the Czech Academy of Sciences, Czech Republic
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Tawaraya K, Honda S, Cheng W, Chuba M, Okazaki Y, Saito K, Oikawa A, Maruyama H, Wasaki J, Wagatsuma T. Ancient rice cultivar extensively replaces phospholipids with non-phosphorus glycolipid under phosphorus deficiency. PHYSIOLOGIA PLANTARUM 2018; 163:297-305. [PMID: 29412473 DOI: 10.1111/ppl.12699] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/15/2018] [Accepted: 01/31/2018] [Indexed: 05/27/2023]
Abstract
Recycling of phosphorus (P) from P-containing metabolites is an adaptive strategy of plants to overcome soil P deficiency. This study was aimed at demonstrating differences in lipid remodelling between low-P-tolerant and -sensitive rice cultivars using lipidome profiling. The rice cultivars Akamai (low-P-tolerant) and Koshihikari (low-P-sensitive) were grown in a culture solution with [2 mg l-1 (+P)] or without (-P) phosphate for 21 and 28 days after transplantation. Upper and lower leaves were collected. Lipids were extracted from the leaves and their composition was analysed by liquid chromatography/mass spectrometry (LC-MS). Phospholipids, namely phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylglycerol (PG) and phosphatidylinositol (PI), lysophosphatidylcholine (lysoPC), diacylglycerol (DAG), triacylglycerol (TAG) and glycolipids, namely sulfoquinovosyl diacylglycerol (SQDG), digalactosyldiacylglycerol (DGDG), monogalactosyldiacylglycerol (MGDG) and 1,2-diacyl-3-O-alpha-glucuronosyl glycerol (GlcADG), were detected. GlcADG level was higher in both cultivars grown in -P than in +P and the increase was larger in Akamai than in Koshihikari. DGDG, MGDG and SQDG levels were higher in Akamai grown in -P than in +P and the increase was larger in the upper leaves than in the lower leaves. PC, PE, PG and PI levels were lower in both cultivars grown in -P than in +P and the decrease was larger in the lower leaves than in the upper leaves and in Akamai than in Koshihikari. Akamai catabolised more phospholipids in older leaves and synthesised glycolipids in younger leaves. These results suggested that extensive phospholipid replacement with non-phosphorus glycolipids is a mechanism underlying low-P-tolerance in rice cultivars.
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Affiliation(s)
- Keitaro Tawaraya
- Faculty of Agriculture, Yamagata University, Tsuruoka, 997-8555, Japan
| | - Soichiro Honda
- Faculty of Agriculture, Yamagata University, Tsuruoka, 997-8555, Japan
| | - Weiguo Cheng
- Faculty of Agriculture, Yamagata University, Tsuruoka, 997-8555, Japan
| | - Masaru Chuba
- Yamagata Integrated Agricultural Research Center, Tsuruoka, 997-7601, Japan
| | - Yozo Okazaki
- RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Akira Oikawa
- Faculty of Agriculture, Yamagata University, Tsuruoka, 997-8555, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Hayato Maruyama
- Graduate School of Biosphere Science, Hiroshima University, Higashihiroshima, 739-8521, Japan
| | - Jun Wasaki
- Graduate School of Biosphere Science, Hiroshima University, Higashihiroshima, 739-8521, Japan
| | - Tadao Wagatsuma
- Faculty of Agriculture, Yamagata University, Tsuruoka, 997-8555, Japan
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32
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Abstract
Plastids are semiautonomous organelles like mitochondria, and derive from a cyanobacterial ancestor that was engulfed by a host cell. During evolution, they have recruited proteins originating from the nuclear genome, and only parts of their ancestral metabolic properties were conserved and optimized to limit functional redundancy with other cell compartments. Furthermore, large disparities in metabolic functions exist among various types of plastids, and the characterization of their various metabolic properties is far from being accomplished. In this review, we provide an overview of the main functions, known to be achieved by plastids or shared by plastids and other compartments of the cell. In short, plastids appear at the heart of all main plant functions.
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Affiliation(s)
- Norbert Rolland
- Laboratoire de Physiologie Cellulaire et Végétale, Université Grenoble Alpes, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Commissariat à l'Energie Atomique et aux Energies Alternatives, Grenoble, France.
| | - Imen Bouchnak
- Laboratoire de Physiologie Cellulaire et Végétale, Université Grenoble Alpes, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Commissariat à l'Energie Atomique et aux Energies Alternatives, Grenoble, France
| | - Lucas Moyet
- Laboratoire de Physiologie Cellulaire et Végétale, Université Grenoble Alpes, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Commissariat à l'Energie Atomique et aux Energies Alternatives, Grenoble, France
| | - Daniel Salvi
- Laboratoire de Physiologie Cellulaire et Végétale, Université Grenoble Alpes, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Commissariat à l'Energie Atomique et aux Energies Alternatives, Grenoble, France
| | - Marcel Kuntz
- Laboratoire de Physiologie Cellulaire et Végétale, Université Grenoble Alpes, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Commissariat à l'Energie Atomique et aux Energies Alternatives, Grenoble, France
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Vengavasi K, Pandey R, Abraham G, Yadav RK. Comparative Analysis of Soybean Root Proteome Reveals Molecular Basis of Differential Carboxylate Efflux under Low Phosphorus Stress. Genes (Basel) 2017; 8:E341. [PMID: 29189708 PMCID: PMC5748659 DOI: 10.3390/genes8120341] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/16/2017] [Accepted: 11/20/2017] [Indexed: 11/24/2022] Open
Abstract
Carboxylate efflux from roots is a crucial and differential response of soybean genotypes to low phosphorus (P) stress. Exudation of carboxylic acids including oxalate, citrate, succinate and fumarate was induced under low P stress, particularly in P-efficient soybean genotypes. Enhancement of root length, surface area and volume further improved P acquisition under low P stress. To understand the molecular basis of carboxylate efflux under low P stress, the root proteome of contrasting genotypes (P-efficient: EC-232019 and P-inefficient: EC-113396) was compared. Among a total of 325 spots, 105 (32%) were differentially abundant proteins (DAPs) between sufficient (250 µM) and low P (4 µM) levels. Abundance of 44 (14%) proteins decreased by more than two-fold under low P stress, while 61 (19%) proteins increased by more than two-fold. Protein identification and annotation revealed that the DAPs were involved in a myriad of functions including carboxylic acid synthesis, carbohydrate, protein and lipid metabolism. Proteins with significant abundance included malate dehydrogenase, isocitrate dehydrogenase, phosphoglucomutase, phosphoglycerate mutase, fructokinase, enolase, phosphoglycerate kinase, triosephosphate isomerase, alcohol dehydrogenase, glucan water dikinase, glutamine synthetase and argininosuccinate lyase. Inferences from proteomic analysis suggests the crosstalk between various metabolic pathways implicated in conferring superior P acquisition efficiency under stress.
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Affiliation(s)
- Krishnapriya Vengavasi
- Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India.
| | - Renu Pandey
- Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India.
| | - Gerard Abraham
- National Centre for Conservation and Utilization of Blue Green Algae, Division of Microbiology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India.
| | - Ravindra Kumar Yadav
- National Centre for Conservation and Utilization of Blue Green Algae, Division of Microbiology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India.
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Pfahler V, Tamburini F, Bernasconi SM, Frossard E. A dual isotopic approach using radioactive phosphorus and the isotopic composition of oxygen associated to phosphorus to understand plant reaction to a change in P nutrition. PLANT METHODS 2017; 13:75. [PMID: 29021817 PMCID: PMC5613512 DOI: 10.1186/s13007-017-0227-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 09/17/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Changing the phosphorus (P) nutrition leads to changes in plant metabolism. The aim of this study was to investigate how these changes are reflected in the distribution of 33P and the isotopic composition of oxygen associated to P (δ18OP) in different plant parts of soybean (Glycine max cv. Toliman). Two P pools were extracted sequentially with 0.3 M trichloroacetic acid (TCA P) and 10 M nitric acid (HNO3; residual P). RESULTS The δ18OP of TCA P in the old leaves of the - P plants (23.8‰) significantly decreased compared to the + P plants (27.4‰). The 33P data point to an enhanced mobilisation of P from residual P in the old leaves of the - P plants compared to the + P plants. CONCLUSIONS Omitting P for 10 days lead to a translocation of P from source to sink organs in soybeans. This was accompanied by a significant lowering of the δ18OP of TCA P in the source organs due to the enzymatic hydrolysis of organic P. Combining 33P and δ18OP can provide useful insights in plant responses to P omission at an early stage.
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Affiliation(s)
- Verena Pfahler
- Department of Environmental Systems Science, ETH Zurich, Eschikon 33, 8315 Lindau, Switzerland
- Sustainable Agriculture Sciences, Rothamsted Research, Okehampton, Devon EX20 2SB UK
| | - Federica Tamburini
- Department of Environmental Systems Science, ETH Zurich, Eschikon 33, 8315 Lindau, Switzerland
| | - Stefano M. Bernasconi
- Department of Earth Sciences, ETH Zurich, Sonneggstrasse 5, 8001 Zurich, Switzerland
| | - Emmanuel Frossard
- Department of Environmental Systems Science, ETH Zurich, Eschikon 33, 8315 Lindau, Switzerland
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Hsueh YC, Ehmann C, Flinner N, Ladig R, Schleiff E. The plastid outer membrane localized LPTD1 is important for glycerolipid remodelling under phosphate starvation. PLANT, CELL & ENVIRONMENT 2017; 40:1643-1657. [PMID: 28433003 DOI: 10.1111/pce.12973] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 04/10/2017] [Accepted: 04/10/2017] [Indexed: 06/07/2023]
Abstract
Glycerolipid synthesis in plants is coordinated between plastids and the endoplasmic reticulum (ER). A central step within the glycerolipid synthesis is the transport of phosphatidic acid from ER to chloroplasts. The chloroplast outer envelope protein TGD4 belongs to the LptD family conserved in bacteria and plants and selectively binds and may transport phosphatidic acid. We describe a second LptD-family protein in A. thaliana (atLPTD1; At2g44640) characterized by a barrel domain with an amino-acid signature typical for cyanobacterial LptDs. It forms a cation selective channel in vitro with a diameter of about 9 Å. atLPTD1 levels are induced under phosphate starvation. Plants expressing an RNAi construct against atLPTD1 show a growth phenotype under normal conditions. Expressing the RNAi against atLPTD1 in the tgd4-1 background renders the plants more sensitive to light stress or phosphate limitation than the individual mutants. Moreover, lipid analysis revealed that digalactosyldiacylglycerol and sulfoquinovosyldiacylglycerol levels remain constant in the RNAi mutants under phosphate starvation, while these two lipids are enhanced in wild-type. Based on our results, we propose a function of atLPTD1 in the transport of lipids from ER to chloroplast under phosphate starvation, which is combinatory with the function of TGD4.
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Affiliation(s)
- Yi-Ching Hsueh
- Department of Biosciences, Molecular Cell Biology of Plants, Goethe University, Max von Laue Str. 9, 60438, Frankfurt am Main, Germany
- Department of Physics, Syracuse University, 201 Physics Bldg., Syracuse, New York, NY, 13244-1130, USA
| | - Christian Ehmann
- Department of Biosciences, Molecular Cell Biology of Plants, Goethe University, Max von Laue Str. 9, 60438, Frankfurt am Main, Germany
| | - Nadine Flinner
- Department of Biosciences, Molecular Cell Biology of Plants, Goethe University, Max von Laue Str. 9, 60438, Frankfurt am Main, Germany
- Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Straße 1, 60438, Frankfurt am Main, Germany
| | - Roman Ladig
- Department of Biosciences, Molecular Cell Biology of Plants, Goethe University, Max von Laue Str. 9, 60438, Frankfurt am Main, Germany
| | - Enrico Schleiff
- Department of Biosciences, Molecular Cell Biology of Plants, Goethe University, Max von Laue Str. 9, 60438, Frankfurt am Main, Germany
- Cluster of Excellence Frankfurt, Goethe University, Max von Laue Str. 9, 60438, Frankfurt am Main, Germany
- Buchman Institute of Molecular Life Sciences, Goethe University, Max von Laue Str. 15, 60438, Frankfurt am Main, Germany
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Cañavate JP, Armada I, Hachero-Cruzado I. Aspects of phosphorus physiology associated with phosphate-induced polar lipid remodelling in marine microalgae. JOURNAL OF PLANT PHYSIOLOGY 2017; 214:28-38. [PMID: 28423307 DOI: 10.1016/j.jplph.2017.03.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/27/2017] [Accepted: 03/28/2017] [Indexed: 05/10/2023]
Abstract
Marine microalgae exhibit a diversified phosphorus physiology and have also been recently found to show high inter-taxa variability in their phosphate induced-polar lipids' remodelling. Identification of phosphorus physiology aspects that are more related to lipid remodelling can contribute to better understanding of such intricate phytoplankton lipid metabolism. Therefore, some aspects of phosphorus physiology related to its uptake, storage and use were evaluated in a taxonomically diversified group of nine marine microalgae that was arranged into three subgroups, each of them including species showing similar polar lipid responses to phosphate. Luxury phosphate uptake (PU) was the physiological aspect best associated to microalgal polar lipid metabolism as it was maximal in species (Picochlorum atomus, Tetraselmis suecica and Nannochloropsis gaditana) that were able to counterbalance between phospholipids (PL) and betaine lipids (BL). Cryptophytes (Rhodomonas baltica, Chroomonas placoidea), characterized by their constitutive BL and flexible PL contents in response to phosphate, had almost no luxury PU and showed higher phosphorus cell quota (QP) under phosphate deprivation. Haptophyes (Isochrysis galbana, Diacronema vlkianum), with constitutive BL contents and permanently minimal PL contents, showed the lowest QP when deprived of phosphate while their luxury PU was below that for green microalgae. Induction of alkaline phosphatase activity following phosphate depletion was maximal in diatoms (Phaeodactylum tricornutum, Chaetoceros gracilis) and I. galbana but it was unrelated to lipid remodelling. Despite strong influence of taxonomy, polar lipid remodelling accounted for 38.8% of total variation when microalgae were ordinated using their physiological responses to phosphorus as descriptive variables.
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Affiliation(s)
- José Pedro Cañavate
- IFAPA Centro El Toruño. Andalusia Research and Training Institute for Fisheries and Agriculture, 11500-El Puerto de Santa María, Cádiz, Spain.
| | - Isabel Armada
- IFAPA Centro El Toruño. Andalusia Research and Training Institute for Fisheries and Agriculture, 11500-El Puerto de Santa María, Cádiz, Spain
| | - Ismael Hachero-Cruzado
- IFAPA Centro El Toruño. Andalusia Research and Training Institute for Fisheries and Agriculture, 11500-El Puerto de Santa María, Cádiz, Spain
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37
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Cañavate JP, Armada I, Hachero-Cruzado I. Interspecific variability in phosphorus-induced lipid remodelling among marine eukaryotic phytoplankton. THE NEW PHYTOLOGIST 2017; 213:700-713. [PMID: 27605045 DOI: 10.1111/nph.14179] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 07/28/2016] [Indexed: 05/10/2023]
Abstract
The response of marine microalgal lipids to phosphorus is of central importance in phytoplankton ecology but remains poorly understood. We determined how taxonomically diverse microalgal species remodelled their lipid class profile in response to phosphorus availability and whether these changes coincided with those already known to occur in land plants and in the limited number of phytoplankton species for which data are available. The complete lipid class profile and specific lipid ratios influenced by phosphorus availability were quantified in two green microalgae and seven Chromalveolates exposed to phosphorus repletion, deprivation and replenishment. Lipid class cell quota changes in the two green microalgae resembled the currently described pattern of betaine lipids substituting for phospholipids under phosphorus depletion, whereas only two of the studied Chromalveolates showed this pattern. Sulpholipids counterbalanced phosphatidylglycerol only in Picochlorum atomus. In all other species, both lipids decreased simultaneously under phosphorus deprivation, although sulpholipids declined more slowly. Phosphorus deprivation always induced a decrease in digalactosyl-diacylglycerol. However, the ratio of digalactosyl-diacylglycerol to total phospholipids increased in eight species and remained unchanged in Isochrysis galbana. Marine phytoplankton seems to have evolved a diversified mechanism for remodelling its lipid class profile under the influence of phosphorus, with cryptophytes and particularly haptophytes exhibiting previously unobserved lipid responses to phosphorus.
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Affiliation(s)
- José Pedro Cañavate
- IFAPA Centro El Toruño, Andalusia Research and Training Institute for Fisheries and Agriculture, 11500-El Puerto de Santa Maria, Cádiz, Spain
| | - Isabel Armada
- IFAPA Centro El Toruño, Andalusia Research and Training Institute for Fisheries and Agriculture, 11500-El Puerto de Santa Maria, Cádiz, Spain
| | - Ismael Hachero-Cruzado
- IFAPA Centro El Toruño, Andalusia Research and Training Institute for Fisheries and Agriculture, 11500-El Puerto de Santa Maria, Cádiz, Spain
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38
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Wei F, Fanella B, Guo L, Wang X. Membrane glycerolipidome of soybean root hairs and its response to nitrogen and phosphate availability. Sci Rep 2016; 6:36172. [PMID: 27812010 PMCID: PMC5095881 DOI: 10.1038/srep36172] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 10/07/2016] [Indexed: 11/10/2022] Open
Abstract
Root hairs are tubular extensions of specific root epidermal cells important in plant nutrition and water absorption. To determine membrane glycerolipids in root hairs and roots may differ, as well as their respective response to nutrient availability, this study analyzed the membrane glycerolipid species in soybean root hairs and in roots stripped of root hairs, and their response to nitrogen (N) and phosphate (Pi) supplementation. The ratio of phospholipids to galactolipids was 1.5 fold higher in root hairs than in stripped roots. Under Pi deficiency, the ratio of phospholipids to galactolipids in stripped roots decreased with the greatest decrease found in the level of phosphatidylethanolamine (PE) in root hairs and stripped roots, and root hairs had an increased level of phosphatidic acid (PA). When seedlings were not supplied with N, the level of the N-containing lipids PE and phosphatidylserine in root hairs decreased whereas the level of non-N-containing lipids galactolipids and PA increased compared to N-supplied conditions. In stripped roots, the level of major membrane lipids was not different between N-sufficient and -deficient conditions. The results indicate that the membrane glycerolipidomes in root hairs are more responsive to nutrient availability than are the rest of roots.
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Affiliation(s)
- Fang Wei
- Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, Wuhan, Hubei, 430062, China
| | - Brian Fanella
- Department of Biology, University of Missouri, St. Louis, MO 63121, USA
| | - Liang Guo
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Xuemin Wang
- Department of Biology, University of Missouri, St. Louis, MO 63121, USA
- Donald Danforth Plant Science Center, St. Louis, MO 63132, USA
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39
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Hori K, Nobusawa T, Watanabe T, Madoka Y, Suzuki H, Shibata D, Shimojima M, Ohta H. Tangled evolutionary processes with commonality and diversity in plastidial glycolipid synthesis in photosynthetic organisms. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1861:1294-1308. [PMID: 27108062 DOI: 10.1016/j.bbalip.2016.04.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 04/09/2016] [Accepted: 04/15/2016] [Indexed: 01/25/2023]
Abstract
In photosynthetic organisms, the photosynthetic membrane constitutes a scaffold for light-harvesting complexes and photosynthetic reaction centers. Three kinds of glycolipids, namely monogalactosyldiacylglycerol, digalactosyldiacylglycerol, and sulfoquinovosyldiacylglycerol, constitute approximately 80-90% of photosynthetic membrane lipids and are well conserved from tiny cyanobacteria to the leaves of huge trees. These glycolipids perform a wide variety of functions beyond biological membrane formation. In particular, the capability of adaptation to harsh environments through regulation of membrane glycolipid composition is essential for healthy growth and development of photosynthetic organisms. The genome analysis and functional genetics of the model seed plant Arabidopsis thaliana have yielded many new findings concerning the biosynthesis, regulation, and functions of glycolipids. Nevertheless, it remains to be clarified how the complex biosynthetic pathways and well-organized functions of glycolipids evolved in early and primitive photosynthetic organisms, such as cyanobacteria, to yield modern photosynthetic organisms like land plants. Recently, genome data for many photosynthetic organisms have been made available as the fruit of the rapid development of sequencing technology. We also have reported the draft genome sequence of the charophyte alga Klebsormidium flaccidum, which is an intermediate organism between green algae and land plants. Here, we performed a comprehensive phylogenic analysis of glycolipid biosynthesis genes in oxygenic photosynthetic organisms including K. flaccidum. Based on the results together with membrane lipid analysis of this alga, we discuss the evolution of glycolipid synthesis in photosynthetic organisms. This article is part of a Special Issue entitled: Plant Lipid Biology edited by Kent D. Chapman and Ivo Feussner.
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Affiliation(s)
- Koichi Hori
- Tokyo Institute of Technology, School of Life Science and Technology, Yokohama City, Kanagawa 226-8501, Japan; CREST, Japan Science and Technology Agency, Japan
| | - Takashi Nobusawa
- Tokyo Institute of Technology, School of Life Science and Technology, Yokohama City, Kanagawa 226-8501, Japan; CREST, Japan Science and Technology Agency, Japan
| | - Tei Watanabe
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology, Yokohama City, Kanagawa 226-8501, Japan
| | - Yuka Madoka
- Tokyo Institute of Technology, School of Life Science and Technology, Yokohama City, Kanagawa 226-8501, Japan
| | - Hideyuki Suzuki
- Kazusa DNA Research Institute, 2-6-7 Kazusa-kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Daisuke Shibata
- Kazusa DNA Research Institute, 2-6-7 Kazusa-kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Mie Shimojima
- Tokyo Institute of Technology, School of Life Science and Technology, Yokohama City, Kanagawa 226-8501, Japan
| | - Hiroyuki Ohta
- Tokyo Institute of Technology, School of Life Science and Technology, Yokohama City, Kanagawa 226-8501, Japan; CREST, Japan Science and Technology Agency, Japan; Tokyo Institute of Technology, Earth-Life Science Institute, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
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40
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Sebastián M, Smith AF, González JM, Fredricks HF, Van Mooy B, Koblížek M, Brandsma J, Koster G, Mestre M, Mostajir B, Pitta P, Postle AD, Sánchez P, Gasol JM, Scanlan DJ, Chen Y. Lipid remodelling is a widespread strategy in marine heterotrophic bacteria upon phosphorus deficiency. THE ISME JOURNAL 2016; 10:968-78. [PMID: 26565724 PMCID: PMC4796936 DOI: 10.1038/ismej.2015.172] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 08/10/2015] [Indexed: 11/25/2022]
Abstract
Upon phosphorus (P) deficiency, marine phytoplankton reduce their requirements for P by replacing membrane phospholipids with alternative non-phosphorus lipids. It was very recently demonstrated that a SAR11 isolate also shares this capability when phosphate starved in culture. Yet, the extent to which this process occurs in other marine heterotrophic bacteria and in the natural environment is unknown. Here, we demonstrate that the substitution of membrane phospholipids for a variety of non-phosphorus lipids is a conserved response to P deficiency among phylogenetically diverse marine heterotrophic bacteria, including members of the Alphaproteobacteria and Flavobacteria. By deletion mutagenesis and complementation in the model marine bacterium Phaeobacter sp. MED193 and heterologous expression in recombinant Escherichia coli, we confirm the roles of a phospholipase C (PlcP) and a glycosyltransferase in lipid remodelling. Analyses of the Global Ocean Sampling and Tara Oceans metagenome data sets demonstrate that PlcP is particularly abundant in areas characterized by low phosphate concentrations. Furthermore, we show that lipid remodelling occurs seasonally and responds to changing nutrient conditions in natural microbial communities from the Mediterranean Sea. Together, our results point to the key role of lipid substitution as an adaptive strategy enabling heterotrophic bacteria to thrive in the vast P-depleted areas of the ocean.
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Affiliation(s)
- Marta Sebastián
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, CSIC, Barcelona, Spain
| | | | - José M González
- Department of Microbiology, University of La Laguna, La Laguna, Spain
| | - Helen F Fredricks
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - Benjamin Van Mooy
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - Michal Koblížek
- Institute of Microbiology, Center Algatech, Třeboň, Czech Republic
| | - Joost Brandsma
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Grielof Koster
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Mireia Mestre
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, CSIC, Barcelona, Spain
| | - Behzad Mostajir
- Center of Marine Biodiversity, Exploitation and Conservation (MARBEC), UMR 9190, CNRS – Université de Montpellier – IRD – IFREMER, Place Eugène Bataillon, Université de Montpellier, Case 93, Montpellier, France
| | - Paraskevi Pitta
- Hellenic Centre for Marine Research, Oceanography Institute, Heraklion, Greece
| | - Anthony D Postle
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Pablo Sánchez
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, CSIC, Barcelona, Spain
| | - Josep M Gasol
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, CSIC, Barcelona, Spain
| | - David J Scanlan
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Yin Chen
- School of Life Sciences, University of Warwick, Coventry, UK
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Bastien O, Botella C, Chevalier F, Block MA, Jouhet J, Breton C, Girard-Egrot A, Maréchal E. New Insights on Thylakoid Biogenesis in Plant Cells. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 323:1-30. [DOI: 10.1016/bs.ircmb.2015.12.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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42
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Li S, Huang M, Di Q, Ji T, Wang X, Wei M, Shi Q, Li Y, Gong B, Yang F. The functions of a cucumber phospholipase D alpha gene (CsPLDα) in growth and tolerance to hyperosmotic stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 97:175-86. [PMID: 26476791 DOI: 10.1016/j.plaphy.2015.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 09/17/2015] [Accepted: 10/05/2015] [Indexed: 05/21/2023]
Abstract
Plant phospholipase D (PLD), which can hydrolyze membrane phospholipids to produce phosphatidic acid (PA), a secondary signaling molecule, has been proposed to function in diverse plant stress responses. In this research, a qRT-PCR analysis indicated that the expression of a cucumber phospholipase D alpha gene (CsPLDα) was induced by salt and drought stresses in the roots and leaves. To further study the roles of CsPLDα in regulating plant tolerance to salt, polyethylene glycol (PEG) and abscisic acid (ABA) stresses, transgenic tobacco plants constitutively overexpressing CsPLDα were produced. A qRT-PCR analysis showed that the CsPLDα transcript levels were high in transgenic tobacco lines, whereas no expression was found in wild type (WT) tobacco, indicating that CsPLDα was successfully transferred into the tobacco genome and overexpressed. Under normal conditions for 30 d, seeds of transgenic lines germinated neatly, and the seedlings were robust and bigger than WT plants. When treated with different concentrations of NaCl, PEG and ABA, germination rates and seedling sizes of the transgenic lines were significantly greater than WT. In addition, the germination times for transgenic lines were also remarkably shorter. Further studies indicated that transgenic lines had longer primary roots and more biomass accumulation than WT plants. The water loss in transgenic lines was also much lower than in WT. These findings suggest that the CsPLDα overexpression positively regulates plant tolerance to hyperosmotic stresses, and that CsPLDα is involved in the ABA regulation of stomatal closure and the alleviation of ABA inhibition on seed germination and seedling growth.
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Affiliation(s)
- Shuzhen Li
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China
| | - Meili Huang
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China
| | - Qinghua Di
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China
| | - Tuo Ji
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China
| | - Xiufeng Wang
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture, Tai'an 271018, PR China
| | - Min Wei
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China
| | - Qinghua Shi
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture, Tai'an 271018, PR China
| | - Yan Li
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China
| | - Biao Gong
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China
| | - Fengjuan Yang
- College of Horticulture Science and Engineering, Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai'an 271018, PR China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture, Tai'an 271018, PR China.
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43
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Shimojima M, Madoka Y, Fujiwara R, Murakawa M, Yoshitake Y, Ikeda K, Koizumi R, Endo K, Ozaki K, Ohta H. An engineered lipid remodeling system using a galactolipid synthase promoter during phosphate starvation enhances oil accumulation in plants. FRONTIERS IN PLANT SCIENCE 2015; 6:664. [PMID: 26379690 PMCID: PMC4553410 DOI: 10.3389/fpls.2015.00664] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 08/12/2015] [Indexed: 05/24/2023]
Abstract
Inorganic phosphate (Pi) depletion is a serious problem for plant growth. Membrane lipid remodeling is a defense mechanism that plants use to survive Pi-depleted conditions. During Pi starvation, phospholipids are degraded to supply Pi for other essential biological processes, whereas galactolipid synthesis in plastids is up-regulated via the transcriptional activation of monogalactosyldiacylglycerol synthase 3 (MGD3). Thus, the produced galactolipids are transferred to extraplastidial membranes to substitute for phospholipids. We found that, Pi starvation induced oil accumulation in the vegetative tissues of various seed plants without activating the transcription of enzymes involved in the later steps of triacylglycerol (TAG) biosynthesis. Moreover, the Arabidopsis starchless phosphoglucomutase mutant, pgm-1, accumulated higher TAG levels than did wild-type plants under Pi-depleted conditions. We generated transgenic plants that expressed a key gene involved in TAG synthesis using the Pi deficiency-responsive MGD3 promoter in wild-type and pgm-1 backgrounds. During Pi starvation, the transgenic plants accumulated higher TAG amounts compared with the non-transgenic plants, suggesting that the Pi deficiency-responsive promoter of galactolipid synthase in plastids may be useful for producing transgenic plants that accumulate more oil under Pi-depleted conditions.
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Affiliation(s)
- Mie Shimojima
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of TechnologyYokohama, Japan
| | - Yuka Madoka
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of TechnologyYokohama, Japan
| | - Ryota Fujiwara
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of TechnologyYokohama, Japan
| | - Masato Murakawa
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of TechnologyYokohama, Japan
| | - Yushi Yoshitake
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of TechnologyYokohama, Japan
| | - Keiko Ikeda
- Technical Department, Biomaterial Analysis Center, Tokyo Institute of TechnologyYokohama, Japan
| | - Ryota Koizumi
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of TechnologyYokohama, Japan
| | - Keiji Endo
- Biological Science Laboratories, Kao CorporationTochigi, Japan
| | - Katsuya Ozaki
- Biological Science Laboratories, Kao CorporationTochigi, Japan
| | - Hiroyuki Ohta
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of TechnologyYokohama, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology AgencyTokyo, Japan
- Earth-Life Science Institute, Tokyo Institute of TechnologyTokyo, Japan
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Domingues TF, Ishida FY, Feldpausch TR, Grace J, Meir P, Saiz G, Sene O, Schrodt F, Sonké B, Taedoumg H, Veenendaal EM, Lewis S, Lloyd J. Biome-specific effects of nitrogen and phosphorus on the photosynthetic characteristics of trees at a forest-savanna boundary in Cameroon. Oecologia 2015; 178:659-72. [PMID: 25752617 PMCID: PMC4472954 DOI: 10.1007/s00442-015-3250-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Accepted: 01/28/2015] [Indexed: 12/02/2022]
Abstract
Photosynthesis/nutrient relationships of proximally growing forest and savanna trees were determined in an ecotonal region of Cameroon (Africa). Although area-based foliar N concentrations were typically lower for savanna trees, there was no difference in photosynthetic rates between the two vegetation formation types. Opposite to N, area-based P concentrations were—on average—slightly lower for forest trees; a dependency of photosynthetic characteristics on foliar P was only evident for savanna trees. Thus savanna trees use N more efficiently than their forest counterparts, but only in the presence of relatively high foliar P. Along with some other recent studies, these results suggest that both N and P are important modulators of woody tropical plant photosynthetic capacities, influencing photosynthetic metabolism in different ways that are also biome specific. Attempts to find simple unifying equations to describe woody tropical vegetation photosynthesis-nutrient relationships are likely to meet with failure, with ecophysiological distinctions between forest and savanna requiring acknowledgement.
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Pejchar P, Potocký M, Krčková Z, Brouzdová J, Daněk M, Martinec J. Non-specific phospholipase C4 mediates response to aluminum toxicity in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2015; 6:66. [PMID: 25763003 PMCID: PMC4329606 DOI: 10.3389/fpls.2015.00066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 01/26/2015] [Indexed: 05/06/2023]
Abstract
Aluminum ions (Al) have been recognized as a major toxic factor for crop production in acidic soils. The first indication of the Al toxicity in plants is the cessation of root growth, but the mechanism of root growth inhibition is largely unknown. Here we examined the impact of Al on the expression, activity, and function of the non-specific phospholipase C4 (NPC4), a plasma membrane-bound isoform of NPC, a member of the plant phospholipase family, in Arabidopsis thaliana. We observed a lower expression of NPC4 using β-glucuronidase assay and a decreased formation of labeled diacylglycerol, product of NPC activity, using fluorescently labeled phosphatidylcholine as a phospholipase substrate in Arabidopsis WT seedlings treated with AlCl3 for 2 h. The effect on in situ NPC activity persisted for longer Al treatment periods (8, 14 h). Interestingly, in seedlings overexpressing NPC4, the Al-mediated NPC-inhibiting effect was alleviated at 14 h. However, in vitro activity and localization of NPC4 were not affected by Al, thus excluding direct inhibition by Al ions or possible translocation of NPC4 as the mechanisms involved in NPC-inhibiting effect. Furthermore, the growth of tobacco pollen tubes rapidly arrested by Al was partially rescued by the overexpression of AtNPC4 while Arabidopsis npc4 knockout lines were found to be more sensitive to Al stress during long-term exposure of Al at low phosphate conditions. Our observations suggest that NPC4 plays a role in both early and long-term responses to Al stress.
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Affiliation(s)
- Přemysl Pejchar
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, PragueCzech Republic
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Pejchar P, Martinec J. Aluminum ions alter the function of non-specific phospholipase C through the changes in plasma membrane physical properties. PLANT SIGNALING & BEHAVIOR 2015; 10:e1031938. [PMID: 26024014 PMCID: PMC4622580 DOI: 10.1080/15592324.2015.1031938] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/12/2015] [Accepted: 03/12/2015] [Indexed: 05/20/2023]
Abstract
The first indication of the aluminum (Al) toxicity in plants growing in acidic soils is the cessation of root growth, but the detailed mechanism of Al effect is unknown. Here we examined the impact of Al stress on the activity of non-specific phospholipase C (NPC) in the connection with the processes related to the plasma membrane using fluorescently labeled phosphatidylcholine. We observed a rapid and significant decrease of labeled diacylglycerol (DAG), product of NPC activity, in Arabidopsis seedlings treated with AlCl₃. Interestingly, an application of the membrane fluidizer, benzyl alcohol, restored the level of DAG during Al treatment. Our observations suggest that the activity of NPC is affected by Al-induced changes in plasma membrane physical properties.
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Key Words
- Arabidopsis thaliana
- BA, benzyl alcohol
- BODIPY
- BODIPY, 4, 4-difluoro-4-bora-3a, 4a-diaza-s-indacene
- BY-2, Bright Yellow 2
- DAG, diacylglycerol
- HP-TLC, high-performance thin-layer chromatography
- MS, Murashige-Skoog
- NPC, non-specific phospholipase C
- PA, phosphatidic acid
- PC, phosphatidylcholine
- PC-PLC, phosphatidylcholine-specific phospholipase C
- PI-PLC, phosphatidylinositol-specific phospholipase C
- PIP2, phosphatidylinositol 4, 5-bisphosphate
- PLD, phospholipase D
- PM, plasma membrane.
- aluminum toxicity
- benzyl alcohol
- diacylglycerol
- membrane fluidity
- non-specific phospholipase C
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Affiliation(s)
- Přemysl Pejchar
- Institute of Experimental Botany, v. v. i.; Academy of Sciences of the Czech Republic; Prague, Czech Republic
| | - Jan Martinec
- Institute of Experimental Botany, v. v. i.; Academy of Sciences of the Czech Republic; Prague, Czech Republic
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47
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Abida H, Dolch LJ, Meï C, Villanova V, Conte M, Block MA, Finazzi G, Bastien O, Tirichine L, Bowler C, Rébeillé F, Petroutsos D, Jouhet J, Maréchal E. Membrane glycerolipid remodeling triggered by nitrogen and phosphorus starvation in Phaeodactylum tricornutum. PLANT PHYSIOLOGY 2015; 167:118-36. [PMID: 25489020 PMCID: PMC4281014 DOI: 10.1104/pp.114.252395] [Citation(s) in RCA: 201] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 12/05/2014] [Indexed: 05/18/2023]
Abstract
Diatoms constitute a major phylum of phytoplankton biodiversity in ocean water and freshwater ecosystems. They are known to respond to some chemical variations of the environment by the accumulation of triacylglycerol, but the relative changes occurring in membrane glycerolipids have not yet been studied. Our goal was first to define a reference for the glycerolipidome of the marine model diatom Phaeodactylum tricornutum, a necessary prerequisite to characterize and dissect the lipid metabolic routes that are orchestrated and regulated to build up each subcellular membrane compartment. By combining multiple analytical techniques, we determined the glycerolipid profile of P. tricornutum grown with various levels of nitrogen or phosphorus supplies. In different P. tricornutum accessions collected worldwide, a deprivation of either nutrient triggered an accumulation of triacylglycerol, but with different time scales and magnitudes. We investigated in depth the effect of nutrient starvation on the Pt1 strain (Culture Collection of Algae and Protozoa no. 1055/3). Nitrogen deprivation was the more severe stress, triggering thylakoid senescence and growth arrest. By contrast, phosphorus deprivation induced a stepwise adaptive response. The time scale of the glycerolipidome changes and the comparison with large-scale transcriptome studies were consistent with an exhaustion of unknown primary phosphorus-storage molecules (possibly polyphosphate) and a transcriptional control of some genes coding for specific lipid synthesis enzymes. We propose that phospholipids are secondary phosphorus-storage molecules broken down upon phosphorus deprivation, while nonphosphorus lipids are synthesized consistently with a phosphatidylglycerol-to-sulfolipid and a phosphatidycholine-to-betaine lipid replacement followed by a late accumulation of triacylglycerol.
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Affiliation(s)
- Heni Abida
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Lina-Juana Dolch
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Coline Meï
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Valeria Villanova
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Melissa Conte
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Maryse A Block
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Giovanni Finazzi
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Olivier Bastien
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Leïla Tirichine
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Chris Bowler
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Fabrice Rébeillé
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Dimitris Petroutsos
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Juliette Jouhet
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
| | - Eric Maréchal
- Environmental and Evolutionary Genomics Section, Institut de Biologie de l'École Normale Supérieure, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8197, Institut National de la Santé et de la Recherche Médicale, U1024, 75005 Paris, France (H.A., L.T., C.B.);Laboratoire de Physiologie Cellulaire et Végétale, Unité Mixte de Recherche 5168 Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Grenoble Alpes, Institut de Recherche en Sciences et Technologies pour le Vivant, Commissariat à l'Energie Atomique Grenoble, 38054 Grenoble cedex 9, France (L.-J.D., C.M., M.C., M.A.B., G.F., O.B., F.R., D.P., J.J., E.M.); andFermentalg SA, F-33500 Libourne, France (V.V.)
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48
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Murakawa M, Shimojima M, Shimomura Y, Kobayashi K, Awai K, Ohta H. Monogalactosyldiacylglycerol synthesis in the outer envelope membrane of chloroplasts is required for enhanced growth under sucrose supplementation. FRONTIERS IN PLANT SCIENCE 2014; 5:280. [PMID: 25002864 PMCID: PMC4066442 DOI: 10.3389/fpls.2014.00280] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 05/28/2014] [Indexed: 05/25/2023]
Abstract
Plant galactolipid synthesis on the outer envelope membranes of chloroplasts is an important biosynthetic pathway for sustained growth under conditions of phosphate (Pi) depletion. During Pi starvation, the amount of digalactosyldiacylglycerol (DGDG) is increased to substitute for the phospholipids that are degraded for supplying Pi. An increase in DGDG concentration depends on an adequate supply of monogalactosyldiacylglycerol (MGDG), which is a substrate for DGDG synthesis and is synthesized by a type-B MGDG synthase, MGD3. Recently, sucrose was suggested to be a global regulator of plant responses to Pi starvation. Thus, we analyzed expression levels of several genes involved in lipid remodeling during Pi starvation in Arabidopsis thaliana and found that the abundance of MGD3 mRNA increased when sucrose was exogenously supplied to the growth medium. Sucrose supplementation retarded the growth of the Arabidopsis MGD3 knockout mutant mgd3 but enhanced the growth of transgenic Arabidopsis plants overexpressing MGD3 compared with wild type, indicating the involvement of MGD3 in plant growth under sucrose-replete conditions. Although most features such as chlorophyll content, photosynthetic activity, and Pi content were comparable between wild-type and the transgenic plants overexpressing MGD3, sucrose content in shoot tissues decreased and incorporation of exogenously supplied carbon to DGDG was enhanced in the MGD3-overexpressing plants compared with wild type. Our results suggest that MGD3 plays an important role in supplying DGDG as a component of extraplastidial membranes to support enhanced plant growth under conditions of carbon excess.
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Affiliation(s)
- Masato Murakawa
- Graduate School of Biological Sciences, Tokyo Institute of TechnologyYokohama, Japan
| | - Mie Shimojima
- Center for Biological Resources and Informatics, Tokyo Institute of TechnologyYokohama, Japan
| | - Yuichi Shimomura
- Graduate School of Biological Sciences, Tokyo Institute of TechnologyYokohama, Japan
| | - Koichi Kobayashi
- Graduate School of Arts and Sciences, Tokyo UniversityTokyo, Japan
| | - Koichiro Awai
- Graduate School of Science, Shizuoka UniversityShizuoka, Japan
- JST PRESTTokyo, Japan
| | - Hiroyuki Ohta
- Center for Biological Resources and Informatics, Tokyo Institute of TechnologyYokohama, Japan
- Earth-Life Science Institute, Tokyo Institute of TechnologyTokyo, Japan
- JST CRESTTokyo, Japan
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Cheong WF, Wenk MR, Shui G. Comprehensive analysis of lipid composition in crude palm oil using multiple lipidomic approaches. J Genet Genomics 2014; 41:293-304. [PMID: 24894356 DOI: 10.1016/j.jgg.2014.04.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 04/17/2014] [Accepted: 04/17/2014] [Indexed: 11/15/2022]
Abstract
Palm oil is currently the leading edible oil consumed worldwide. Triacylglycerol (TAG) and diacylglycerol (DAG) are the dominant lipid classes in palm oil. Other lipid classes present in crude palm oil, such as phospholipids and galactolipids, are very low in abundance. These low-abundance lipids constitute key intermediates in lipid biosynthesis. In this study, we applied multiple lipidomic approaches, including high-sensitivity and high-specificity multiple reaction monitoring, to comprehensively quantify individual lipid species in crude palm oil. We also established a new liquid chromatography-coupled mass spectrometry method that allows direct quantification of low-abundance galactolipids in palm oil without the need for sample pretreatment. As crude palm oil contains large amounts of neutral lipids, our direct-detection method circumvents many of the challenges encountered with conventional lipid quantification methods. This approach allows direct measurement of lipids with no hassle during sample preparation and is more accurate and precise compared with other methods.
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Affiliation(s)
- Wei Fun Cheong
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119275, Singapore
| | - Markus R Wenk
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119275, Singapore.
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
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50
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Petroutsos D, Amiar S, Abida H, Dolch LJ, Bastien O, Rébeillé F, Jouhet J, Falconet D, Block MA, McFadden GI, Bowler C, Botté C, Maréchal E. Evolution of galactoglycerolipid biosynthetic pathways – From cyanobacteria to primary plastids and from primary to secondary plastids. Prog Lipid Res 2014; 54:68-85. [DOI: 10.1016/j.plipres.2014.02.001] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 02/19/2014] [Accepted: 02/20/2014] [Indexed: 12/17/2022]
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