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Yadav DK, Srivastava GP, Singh A, Singh M, Yadav N, Tuteja N. Proteome-wide analysis reveals G protein-coupled receptor-like proteins in rice ( Oryza sativa). PLANT SIGNALING & BEHAVIOR 2024; 19:2365572. [PMID: 38904257 PMCID: PMC11195488 DOI: 10.1080/15592324.2024.2365572] [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: 04/29/2024] [Accepted: 06/04/2024] [Indexed: 06/22/2024]
Abstract
G protein-coupled receptors (GPCRs) constitute the largest family of transmembrane proteins in metazoans that mediate the regulation of various physiological responses to discrete ligands through heterotrimeric G protein subunits. The existence of GPCRs in plant is contentious, but their comparable crucial role in various signaling pathways necessitates the identification of novel remote GPCR-like proteins that essentially interact with the plant G protein α subunit and facilitate the transduction of various stimuli. In this study, we identified three putative GPCR-like proteins (OsGPCRLPs) (LOC_Os06g09930.1, LOC_Os04g36630.1, and LOC_Os01g54784.1) in the rice proteome using a stringent bioinformatics workflow. The identified OsGPCRLPs exhibited a canonical GPCR 'type I' 7TM topology, patterns, and biologically significant sites for membrane anchorage and desensitization. Cluster-based interactome mapping revealed that the identified proteins interact with the G protein α subunit which is a characteristic feature of GPCRs. Computational results showing the interaction of identified GPCR-like proteins with G protein α subunit and its further validation by the membrane yeast-two-hybrid assay strongly suggest the presence of GPCR-like 7TM proteins in the rice proteome. The absence of a regulator of G protein signaling (RGS) box in the C- terminal domain, and the presence of signature motifs of canonical GPCR in the identified OsGPCRLPs strongly suggest that the rice proteome contains GPCR-like proteins that might be involved in signal transduction.
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Affiliation(s)
- Dinesh K. Yadav
- Plant Molecular Biology and Genetic Engineering Laboratory, Department of Botany, University of Allahabad, Prayagraj, India
| | - Gyan Prakash Srivastava
- Plant Molecular Biology and Genetic Engineering Laboratory, Department of Botany, University of Allahabad, Prayagraj, India
| | - Ananya Singh
- Plant Molecular Biology and Genetic Engineering Laboratory, Department of Botany, University of Allahabad, Prayagraj, India
| | - Madhavi Singh
- Plant Molecular Biology and Genetic Engineering Laboratory, Department of Botany, University of Allahabad, Prayagraj, India
| | - Neelam Yadav
- Plant Molecular Biology and Genetic Engineering Laboratory, Department of Botany, University of Allahabad, Prayagraj, India
| | - Narendra Tuteja
- Plant Molecular Biology, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
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Iranmanesh Z, Dehestani M, Esmaeili-Mahani S. Discovering novel targets of abscisic acid using computational approaches. Comput Biol Chem 2024; 112:108157. [PMID: 39047594 DOI: 10.1016/j.compbiolchem.2024.108157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
Abscisic acid (ABA) is a crucial plant hormone that is naturally produced in various mammalian tissues and holds significant potential as a therapeutic molecule in humans. ABA is selected for this study due to its known roles in essential human metabolic processes, such as glucose homeostasis, immune responses, cardiovascular system, and inflammation regulation. Despite its known importance, the molecular mechanism underlying ABA's action remain largely unexplored. This study employed computational techniques to identify potential human ABA receptors. We screened 64 candidate molecules using online servers and performed molecular docking to assess binding affinity and interaction types with ABA. The stability and dynamics of the best complexes were investigated using molecular dynamics simulation over a 100 ns time period. Root mean square fluctuations (RMSF), root mean square deviation (RMSD), solvent-accessible surface area (SASA), radius of gyration (Rg), free energy landscape (FEL), and principal component analysis (PCA) were analyzed. Next, the molecular mechanics Poisson-Boltzmann surface area (MM-PBSA) method was employed to calculate the binding energies of the complexes based on the simulated data. Our study successfully pinpointed four key receptors responsible for ABA signaling (androgen receptor, glucocorticoid receptor, mineralocorticoid receptor, and retinoic acid receptor beta) that have a strong affinity for binding with ABA and remained structurally stable throughout the simulations. The simulations with Hydralazine as an unrelated ligand were conducted to validate the specificity of the identified receptors for ABA. The findings of this study can contribute to further experimental validation and a better understanding of how ABA functions in humans.
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Affiliation(s)
- Zahra Iranmanesh
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Maryam Dehestani
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran.
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Zhao Z, Tu H, Wang Y, Yang J, Hao G, Wu J. Chemical Driving the Subtype Selectivity of Phytohormone Receptors Is Beneficial for Crop Productivity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:16583-16593. [PMID: 39013833 DOI: 10.1021/acs.jafc.4c04446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Chemicals that modulate phytohormones serve as a research tool in plant science and as products to improve crop productivity. Subtype selectivity refers to a ligand to selectively bind to specific subtypes of a receptor rather than binding to all possible subtypes indiscriminately. It allows for precise and specific control of cellular functions and is widely used in medicine. However, subtype selectivity is rarely mentioned in the realm of plant science, and it requires integrated knowledge from chemistry and biology, including structural features of small molecules as ligands, the redundancy of target proteins, and the response of signaling factors. Here, we present a comprehensive review and evaluation of phytohormone receptor subtype selectivity, leveraging the chemical characteristics of phytohormones and their analogues as clues. This work endeavors to provide a valuable research strategy that integrates knowledge from chemistry and biology to advance research efforts geared toward enhancing crop productivity.
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Affiliation(s)
- Zhichao Zhao
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hong Tu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Ya Wang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jianrong Yang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Gefei Hao
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jian Wu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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Ma X, Feng L, Tao A, Zenda T, He Y, Zhang D, Duan H, Tao Y. Identification and validation of seed dormancy loci and candidate genes and construction of regulatory networks by WGCNA in maize introgression lines. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:259. [PMID: 38038768 DOI: 10.1007/s00122-023-04495-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/26/2023] [Indexed: 12/02/2023]
Abstract
KEY MESSAGE Seventeen PHS-QTLs and candidate genes were obtained, including eleven major loci, three under multiple environments and two with co-localization by the other mapping methods; The functions of three candidate genes were validated using mutants; nine target proteins and five networks were filtered by joint analysis of GWAS and WGCNA. Seed dormancy (SD) and pre-harvest sprouting (PHS) affect yield, as well as grain and hybrid quality in seed production. Therefore, identification of genetic and regulatory pathways underlying PHS and SD is key to gene function analysis, allelic variation mining and genetic improvement. In this study, 78,360 SNPs by SLAF-seq of 230 maize chromosome segment introgression lines (ILs), PHS under five environments were used to conduct GWAS (genome wide association study) (a threshold of 1/n), and seventeen unreported PHS QTLs were obtained, including eleven QTLs with PVE > 10% and three QTLs under multiple environments. Two QTL loci were co-located between the other two genetic mapping methods. Using differential gene expression analyses at two stages of grain development, gene functional analysis of Arabidopsis mutants, and gene functional analysis in the QTL region, seventeen PHS QTL-linked candidate genes were identified, and their five molecular regulatory networks constructed. Based on the Arabidopsis T-DNA mutations, three candidate genes were shown to regulate for SD and PHS. Meanwhile, using RNA-seq of grain development, the weighted correlation network analysis (WGCNA) was performed, deducing five regulatory pathways and target genes that regulate PHS and SD. Based on the conjoint analysis of GWAS and WGCNA, four pathways, nine target proteins and target genes were revealed, most of which regulate cell wall metabolism, cell proliferation and seed dehydration tolerance. This has important theoretical and practical significance for elucidating the genetic basis of maize PHS and SD, as well as mining of genetic resources and genetic improvement of traits.
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Affiliation(s)
- Xiaolin Ma
- State Key Laboratory of North China Crop Improvement and Regulation, North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, College of Agronomy, Hebei Agricultural University, Baoding, 071001, China
| | - Liqing Feng
- State Key Laboratory of North China Crop Improvement and Regulation, North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, College of Agronomy, Hebei Agricultural University, Baoding, 071001, China
| | - Anyan Tao
- State Key Laboratory of North China Crop Improvement and Regulation, North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, College of Agronomy, Hebei Agricultural University, Baoding, 071001, China
| | - Tinashe Zenda
- State Key Laboratory of North China Crop Improvement and Regulation, North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, College of Agronomy, Hebei Agricultural University, Baoding, 071001, China
| | - Yuan He
- State Key Laboratory of North China Crop Improvement and Regulation, North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, College of Agronomy, Hebei Agricultural University, Baoding, 071001, China
| | - Daxiao Zhang
- State Key Laboratory of North China Crop Improvement and Regulation, North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, College of Agronomy, Hebei Agricultural University, Baoding, 071001, China
| | - Huijun Duan
- State Key Laboratory of North China Crop Improvement and Regulation, North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, College of Agronomy, Hebei Agricultural University, Baoding, 071001, China.
| | - Yongsheng Tao
- State Key Laboratory of North China Crop Improvement and Regulation, North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, College of Agronomy, Hebei Agricultural University, Baoding, 071001, China.
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Lu W, Wei X, Han X, Chen R, Xiao C, Zheng X, Mao L. Participation of FaTRAB1 Transcription Factor in the Regulation of FaMADS1 Involved in ABA-Dependent Ripening of Strawberry Fruit. Foods 2023; 12:1802. [PMID: 37174341 PMCID: PMC10177999 DOI: 10.3390/foods12091802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/18/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Abscisic acid (ABA) plays a crucial role in regulating the ripening of non-climacteric strawberry fruit. In the present study, ABA was confirmed to promote strawberry ripening and induce the down-regulation of FaMADS1. The transient silence of FaMADS1 in strawberries promoted fruit ripening and induced the content of anthocyanin and soluble pectin but reduced firmness and protopectin through a tobacco rattle virus-induced gene silencing technique. In parallel with the accelerated ripening, the genes were significantly induced in the transiently modified fruit, including anthocyanin-related PAL6, C4H, 4CL, DFR, and UFGT, softening-related PL and XTH, and aroma-related QR and AAT2. In addition, the interaction between FaMADS1 and ABA-related transcription factors was researched. Yeast one-hybrid analysis indicated that the FaMADS1 promoter could interact with FaABI5-5, FaTRAB1, and FaABI5. Furthermore, dual-luciferase assay suggested that FaTRAB1 could actively bind with the FaMADS1 promoter, resulting in the decreased expression of FaMADS1. In brief, these results suggest that the ABA-dependent ripening of strawberry fruit was probably inhibited through inhibiting FaMADS1 expression by the active binding of transcript FaTRAB1 with the FaMADS1 promoter.
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Affiliation(s)
- Wenjing Lu
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, 298 Desheng Road, Hangzhou 310021, China; (W.L.); (C.X.)
- Zhejiang Key Laboratory of AgroFood Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.W.); (X.H.); (R.C.)
| | - Xiaopeng Wei
- Zhejiang Key Laboratory of AgroFood Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.W.); (X.H.); (R.C.)
- School of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Xueyuan Han
- Zhejiang Key Laboratory of AgroFood Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.W.); (X.H.); (R.C.)
- School of Life Sciences, Shaoxing University, Shaoxing 312000, China
| | - Renchi Chen
- Zhejiang Key Laboratory of AgroFood Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.W.); (X.H.); (R.C.)
| | - Chaogeng Xiao
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, 298 Desheng Road, Hangzhou 310021, China; (W.L.); (C.X.)
| | - Xiaojie Zheng
- Department of Agriculture and Biotechnology, Wenzhou Vocational College of Science and Technology, Wenzhou 325006, China
| | - Linchun Mao
- Zhejiang Key Laboratory of AgroFood Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.W.); (X.H.); (R.C.)
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China
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Chakraborty N, Raghuram N. Life, death and resurrection of plant GPCRs. PLANT MOLECULAR BIOLOGY 2023; 111:221-232. [PMID: 36495361 DOI: 10.1007/s11103-022-01323-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/24/2022] [Indexed: 06/17/2023]
Abstract
The activation of G-protein coupled receptors (GPCRs) by extracellular ligands constitutes the first step of heterotrimeric G-protein signalling in animals. In plants, canonical GPCRs have been known for over 25 years, often in association with agronomically important functions. But their role in plant G-protein signalling and even their annotation as GPCR was contested in the last decade, only to be revisited in the light of more recent evidences. In this first ever review on plant GPCRs, we catalogue all the plant GPCRs described to date and discuss the evidences for and against their role in plants in general and G-protein signalling in particular. We argue against writing off GPCRs and point to the missing links to be investigated to establish firm conclusions either way.
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Affiliation(s)
- Navjyoti Chakraborty
- Centre for Sustainable Nitrogen and Nutrient Management, University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sector 16C, Dwarka, New Delhi, 110078, India
| | - Nandula Raghuram
- Centre for Sustainable Nitrogen and Nutrient Management, University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sector 16C, Dwarka, New Delhi, 110078, India.
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7
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The ABA/LANCL Hormone/Receptor System in the Control of Glycemia, of Cardiomyocyte Energy Metabolism, and in Neuroprotection: A New Ally in the Treatment of Diabetes Mellitus? Int J Mol Sci 2023; 24:ijms24021199. [PMID: 36674711 PMCID: PMC9863406 DOI: 10.3390/ijms24021199] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Abscisic acid (ABA), long known as a plant stress hormone, is present and functionally active in organisms other than those pertaining to the land plant kingdom, including cyanobacteria, fungi, algae, protozoan parasites, lower Metazoa, and mammals. The ancient, cross-kingdom role of this stress hormone allows ABA and its signaling pathway to control cell responses to environmental stimuli in diverse organisms such as marine sponges, higher plants, and humans. Recent advances in our knowledge about the physiological role of ABA and of its mammalian receptors in the control of energy metabolism and mitochondrial function in myocytes, adipocytes, and neuronal cells allow us to foresee therapeutic applications for ABA in the fields of pre-diabetes, diabetes, and cardio- and neuro-protection. Vegetal extracts titrated in their ABA content have shown both efficacy and tolerability in preliminary clinical studies. As the prevalence of glucose intolerance, diabetes, and cardiovascular and neurodegenerative diseases is steadily increasing in both industrialized and rapidly developing countries, new and cost-efficient therapeutics to combat these ailments are much needed to ensure disease-free aging for the current and future working generations.
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Yu Y, Portolés S, Ren Y, Sun G, Wang XF, Zhang H, Guo S. The key clock component ZEITLUPE (ZTL) negatively regulates ABA signaling by degradation of CHLH in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2022; 13:995907. [PMID: 36176682 PMCID: PMC9513469 DOI: 10.3389/fpls.2022.995907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 08/18/2022] [Indexed: 06/16/2023]
Abstract
Ubiquitination-mediated protein degradation plays important roles in ABA signal transduction and delivering responses to chloroplast stress signals in plants, but additional E3 ligases of protein ubiquitination remain to be identified to understand the complex signaling network. Here we reported that ZEITLUPE (ZTL), an F-box protein, negatively regulates abscisic acid (ABA) signaling during ABA-inhibited early seedling growth and ABA-induced stomatal closure in Arabidopsis thaliana. Using molecular biology and biochemistry approaches, we demonstrated that ZTL interacts with and ubiquitinates its substrate, CHLH/ABAR (Mg-chelatase H subunit/putative ABA receptor), to modulate CHLH stability via the 26S proteasome pathway. CHLH acts genetically downstream of ZTL in ABA and drought stress signaling. Interestingly, ABA conversely induces ZTL phosphorylation, and high levels of ABA also induce CHLH proteasomal degradation, implying that phosphorylated ZTL protein may enhance the affinity to CHLH, leading to the increased degradation of CHLH after ABA treatment. Taken together, our results revealed a possible mechanism of reciprocal regulation between ABA signaling and the circadian clock, which is thought to be essential for plant fitness and survival.
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Affiliation(s)
- Yongtao Yu
- National Watermelon and Melon Improvement Center, Beijing Academy of Agriculture and Forestry Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Beijing Key Laboratory of Vegetable Germplasm Improvement, Beijing, China
| | - Sergi Portolés
- MOE Key Lab of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Yi Ren
- National Watermelon and Melon Improvement Center, Beijing Academy of Agriculture and Forestry Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Beijing Key Laboratory of Vegetable Germplasm Improvement, Beijing, China
| | - Guangyu Sun
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Xiao-Fang Wang
- MOE Key Lab of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Huihui Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Shaogui Guo
- National Watermelon and Melon Improvement Center, Beijing Academy of Agriculture and Forestry Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Beijing Key Laboratory of Vegetable Germplasm Improvement, Beijing, China
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Shang Y, Yang D, Ha Y, Hur YS, Lee MM, Nam KH. Brassinosteroid-Insensitive 1-Associated Receptor Kinase 1 Modulates Abscisic Acid Signaling by Inducing PYR1 Monomerization and Association With ABI1 in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2022; 13:849467. [PMID: 35548282 PMCID: PMC9083366 DOI: 10.3389/fpls.2022.849467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/14/2022] [Indexed: 06/15/2023]
Abstract
Brassinosteroid-Insensitive 1-Associated Receptor Kinase 1 (BAK1) is a versatile kinase involved in many different plant developmental responses. Previously, we showed that BAK1 interacts with open stomata 1 (OST1), a cytoplasmic kinase, to promote abscisic acid (ABA)-induced stomatal closure. ABA is a plant hormone that primarily regulates stress responses and is recognized by the PYRABACTIN RESISTANCE1 (PYR1)/PYR1-LIKE (PYL)/REGULATORY COMPONENT OF ABA RECEPTORS (RCAR), which activates ABA signaling. Here, we demonstrated that BAK1 interacts with PYR1 and phosphorylates PYR1 in response to ABA in plants. We identified T137 and S142 of PYR1 as the phosphosites targeted by BAK1. Using phosphomimetic (PYR1DD) and phospho-dead (PYR1AA) PYR1 compared with wild-type PYR1, we showed that transgenic plants overexpressing a phosphomimetic PYR1 exhibited hypersensitivity to the inhibition of ABA-induced root growth and seed germination and increased ABA-induced stomatal closure and ABA-inducible gene expression. As underlying reasons for these phenomena, we further demonstrated that phosphorylated PYR1 existed in a monomeric form, in which ABA binding was increased, and the degree of complex formation with ABI1 was also increased. These results suggest that BAK1 positively modulates ABA signaling through interaction with PYR1, in addition to OST1.
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Affiliation(s)
- Yun Shang
- Department of Biological Sciences, Sookmyung Women’s University, Seoul, South Korea
- Research Institute of Women’s Health, Sookmyung Women’s University, Seoul, South Korea
| | - Dami Yang
- Department of Biological Sciences, Sookmyung Women’s University, Seoul, South Korea
| | - Yunmi Ha
- Department of Biological Sciences, Sookmyung Women’s University, Seoul, South Korea
| | - Yoon-Sun Hur
- Department of Systems Biology, Yonsei University, Seoul, South Korea
| | - Myeong Min Lee
- Department of Systems Biology, Yonsei University, Seoul, South Korea
| | - Kyoung Hee Nam
- Department of Biological Sciences, Sookmyung Women’s University, Seoul, South Korea
- Research Institute of Women’s Health, Sookmyung Women’s University, Seoul, South Korea
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Muhammad Aslam M, Waseem M, Jakada BH, Okal EJ, Lei Z, Saqib HSA, Yuan W, Xu W, Zhang Q. Mechanisms of Abscisic Acid-Mediated Drought Stress Responses in Plants. Int J Mol Sci 2022; 23:ijms23031084. [PMID: 35163008 PMCID: PMC8835272 DOI: 10.3390/ijms23031084] [Citation(s) in RCA: 86] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 12/11/2022] Open
Abstract
Drought is one of the major constraints to rain-fed agricultural production, especially under climate change conditions. Plants evolved an array of adaptive strategies that perceive stress stimuli and respond to these stress signals through specific mechanisms. Abscisic acid (ABA) is a premier signal for plants to respond to drought and plays a critical role in plant growth and development. ABA triggers a variety of physiological processes such as stomatal closure, root system modulation, organizing soil microbial communities, activation of transcriptional and post-transcriptional gene expression, and metabolic alterations. Thus, understanding the mechanisms of ABA-mediated drought responses in plants is critical for ensuring crop yield and global food security. In this review, we highlighted how plants adjust ABA perception, transcriptional levels of ABA- and drought-related genes, and regulation of metabolic pathways to alter drought stress responses at both cellular and the whole plant level. Understanding the synergetic role of drought and ABA will strengthen our knowledge to develop stress-resilient crops through integrated advanced biotechnology approaches. This review will elaborate on ABA-mediated drought responses at genetic, biochemical, and molecular levels in plants, which is critical for advancement in stress biology research.
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Affiliation(s)
- Mehtab Muhammad Aslam
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Muhammad Waseem
- Department of Botany, University of Narowal, Narowal 51600, Pakistan;
- College of Horticulture, Hainan University, Haikou 570100, China
| | - Bello Hassan Jakada
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, College of Life Science, Fujian Agriculture and Forestry University, Ministry of Education, Fuzhou 350002, China;
| | - Eyalira Jacob Okal
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Zuliang Lei
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
| | - Hafiz Sohaib Ahmad Saqib
- Guangdong Provincial Key Laboratory of Marine Biology, College of Science, Shantou University, Shantou 515063, China;
| | - Wei Yuan
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Correspondence: (W.Y.); (Q.Z.)
| | - Weifeng Xu
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Qian Zhang
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- Correspondence: (W.Y.); (Q.Z.)
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11
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Ramasamy M, Damaj MB, Vargas-Bautista C, Mora V, Liu J, Padilla CS, Irigoyen S, Saini T, Sahoo N, DaSilva JA, Mandadi KK. A Sugarcane G-Protein-Coupled Receptor, ShGPCR1, Confers Tolerance to Multiple Abiotic Stresses. FRONTIERS IN PLANT SCIENCE 2021; 12:745891. [PMID: 35295863 PMCID: PMC8919185 DOI: 10.3389/fpls.2021.745891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/14/2021] [Indexed: 06/14/2023]
Abstract
Sugarcane (Saccharum spp.) is a prominent source of sugar and serves as bioenergy/biomass feedstock globally. Multiple biotic and abiotic stresses, including drought, salinity, and cold, adversely affect sugarcane yield. G-protein-coupled receptors (GPCRs) are components of G-protein-mediated signaling affecting plant growth, development, and stress responses. Here, we identified a GPCR-like protein (ShGPCR1) from sugarcane and energy cane (Saccharum spp. hybrids) and characterized its function in conferring tolerance to multiple abiotic stresses. ShGPCR1 protein sequence contained nine predicted transmembrane (TM) domains connected by four extracellular and four intracellular loops, which could interact with various ligands and heterotrimeric G proteins in the cells. ShGPCR1 sequence displayed other signature features of a GPCR, such as a putative guanidine triphosphate (GTP)-binding domain, as well as multiple myristoylation and protein phosphorylation sites, presumably important for its biochemical function. Expression of ShGPCR1 was upregulated by drought, salinity, and cold stresses. Subcellular imaging and calcium (Ca2+) measurements revealed that ShGPCR1 predominantly localized to the plasma membrane and enhanced intracellular Ca2+ levels in response to GTP, respectively. Furthermore, constitutive overexpression of ShGPCR1 in sugarcane conferred tolerance to the three stressors. The stress-tolerance phenotype of the transgenic lines corresponded with activation of multiple drought-, salinity-, and cold-stress marker genes, such as Saccharum spp. LATE EMBRYOGENESIS ABUNDANT, DEHYDRIN, DROUGHT RESPONSIVE 4, GALACTINOL SYNTHASE, ETHYLENE RESPONSIVE FACTOR 3, SALT OVERLY SENSITIVE 1, VACUOLAR Na+/H+ ANTIPORTER 1, NAM/ATAF1/2/CUC2, COLD RESPONSIVE FACTOR 2, and ALCOHOL DEHYDROGENASE 3. We suggest that ShGPCR1 plays a key role in conferring tolerance to multiple abiotic stresses, and the engineered lines may be useful to enhance sugarcane production in marginal environments with fewer resources.
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Affiliation(s)
- Manikandan Ramasamy
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | - Mona B. Damaj
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | | | - Victoria Mora
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | - Jiaxing Liu
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | - Carmen S. Padilla
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | - Sonia Irigoyen
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | - Tripti Saini
- Department of Biology, University of Texas Rio Grande Valley, Edinburg, TX, United States
| | - Nirakar Sahoo
- Department of Biology, University of Texas Rio Grande Valley, Edinburg, TX, United States
| | - Jorge A. DaSilva
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
- Department of Soil and Crop Sciences, Texas A&M University, College Station, TX, United States
| | - Kranthi K. Mandadi
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States
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12
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Liang L, Wang Q, Song Z, Wu Y, Liang Q, Wang Q, Yang J, Bi Y, Zhou W, Fan LM. O-fucosylation of CPN20 by SPINDLY Derepresses Abscisic Acid Signaling During Seed Germination and Seedling Development. FRONTIERS IN PLANT SCIENCE 2021; 12:724144. [PMID: 34712252 PMCID: PMC8545988 DOI: 10.3389/fpls.2021.724144] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 09/10/2021] [Indexed: 05/31/2023]
Abstract
SPINDLY is involved in some aspects of plant development. However, the nature of this protein as an O-fucosyltransferase was recently discovered. In this study, we show that SPINDLY (SPY) interacts with CPN20 in yeast two-hybrid and split-luc assays, and the interaction is promoted by ABA. CPN20 is a chloroplast-localized co-chaperonin that negatively regulates ABAR-mediated ABA signaling. By using Electron Transfer Dissociation-MS/MS analysis, two O-fucosylation sites, e.g., 116th and 119th threonines, were detected in ectopically expressed CPN20 in mammalian cells and in Arabidopsis. The O-fucosylation at both threonine residues was confirmed by in vitro peptide O-fucosylation assay. We further show that CPN20 accumulates in the chloroplast of spy mutants, suggesting that SPY negatively regulates CPN20 localization in the chloroplast. In vivo protein degradation assay along with CPN20 localization behavior suggest that import of CPN20 into the chloroplast is negatively regulated by SPY. Genetic analysis shows that ABA insensitive phenotypes of spy-3 in terms of seed germination and early seedling development are partially suppressed by the cpn20 mutation, suggesting that CPN20 acts downstream of SPY in this ABA signaling pathway and that there may exist other pathways in parallel with CPN20. Collectively, the above data support the notion that the O-fucosylation of CPN20 by SPY fine-tunes ABA signaling in Arabidopsis.
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Affiliation(s)
- Lin Liang
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
- PKU Core Facility of Mass Spectrometry, School of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Qi Wang
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
| | - Zihao Song
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
| | - Yaxin Wu
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
| | - Qing Liang
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
| | - Qingsong Wang
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
| | - Jinli Yang
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
| | - Ying Bi
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
| | - Wen Zhou
- PKU Core Facility of Mass Spectrometry, School of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Liu-Min Fan
- State Key Laboratory for Plant Gene and Protein Research, School of Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing, China
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13
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Beyond the Usual Suspects: Physiological Roles of the Arabidopsis Amidase Signature (AS) Superfamily Members in Plant Growth Processes and Stress Responses. Biomolecules 2021; 11:biom11081207. [PMID: 34439873 PMCID: PMC8393822 DOI: 10.3390/biom11081207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 12/25/2022] Open
Abstract
The diversification of land plants largely relies on their ability to cope with constant environmental fluctuations, which negatively impact their reproductive fitness and trigger adaptive responses to biotic and abiotic stresses. In this limiting landscape, cumulative research attention has centred on deepening the roles of major phytohormones, mostly auxins, together with brassinosteroids, jasmonates, and abscisic acid, despite the signaling networks orchestrating the crosstalk among them are so far only poorly understood. Accordingly, this review focuses on the Arabidopsis Amidase Signature (AS) superfamily members, with the aim of highlighting the hitherto relatively underappreciated functions of AMIDASE1 (AMI1) and FATTY ACID AMIDE HYDROLASE (FAAH), as comparable coordinators of the growth-defense trade-off, by balancing auxin and ABA homeostasis through the conversion of their likely bioactive substrates, indole-3-acetamide and N-acylethanolamine.
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14
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Research Advances in Heterotrimeric G-Protein α Subunits and Uncanonical G-Protein Coupled Receptors in Plants. Int J Mol Sci 2021; 22:ijms22168678. [PMID: 34445383 PMCID: PMC8395518 DOI: 10.3390/ijms22168678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/05/2021] [Accepted: 08/10/2021] [Indexed: 12/22/2022] Open
Abstract
As crucial signal transducers, G-proteins and G-protein-coupled receptors (GPCRs) have attracted increasing attention in the field of signal transduction. Research on G-proteins and GPCRs has mainly focused on animals, while research on plants is relatively rare. The mode of action of G-proteins is quite different from that in animals. The G-protein α (Gα) subunit is the most essential member of the G-protein signal cycle in animals and plants. The G-protein is activated when Gα releases GDP and binds to GTP, and the relationships with the GPCR and the downstream signal are also achieved by Gα coupling. It is important to study the role of Gα in the signaling pathway to explore the regulatory mechanism of G-proteins. The existence of a self-activated Gα in plants makes it unnecessary for the canonical GPCR to activate the G-protein by exchanging GDP with GTP. However, putative GPCRs have been found and proven to play important roles in G-protein signal transduction. The unique mode of action of G-proteins and the function of putative GPCRs in plants suggest that the same definition used in animal research cannot be used to study uncanonical GPCRs in plants. This review focuses on the different functions of the Gα and the mode of action between plants and animals as well as the functions of the uncanonical GPCR. This review employs a new perspective to define uncanonical GPCRs in plants and emphasizes the role of uncanonical GPCRs and Gα subunits in plant stress resistance and agricultural production.
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15
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Ruiz-Partida R, Rosario SM, Lozano-Juste J. An Update on Crop ABA Receptors. PLANTS 2021; 10:plants10061087. [PMID: 34071543 PMCID: PMC8229007 DOI: 10.3390/plants10061087] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/06/2021] [Accepted: 05/13/2021] [Indexed: 11/19/2022]
Abstract
The hormone abscisic acid (ABA) orchestrates the plant stress response and regulates sophisticated metabolic and physiological mechanisms essential for survival in a changing environment. Plant ABA receptors were described more than 10 years ago, and a considerable amount of information is available for the model plant Arabidopsis thaliana. Unfortunately, this knowledge is still very limited in crops that hold the key to feeding a growing population. In this review, we summarize genomic, genetic and structural data obtained in crop ABA receptors. We also provide an update on ABA perception in major food crops, highlighting specific and common features of crop ABA receptors.
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Affiliation(s)
- Rafael Ruiz-Partida
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de València (UPV), Calle Ingeniero Fausto Elio s/n, Edificio 8E, 46022 Valencia, Spain; (R.R.-P.); (S.M.R.)
| | - Sttefany M. Rosario
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de València (UPV), Calle Ingeniero Fausto Elio s/n, Edificio 8E, 46022 Valencia, Spain; (R.R.-P.); (S.M.R.)
- Laboratorio de Biología Molecular, Facultad de Ciencias Agronómicas y Veterinarias, Universidad Autónoma de Santo Domingo (UASD), Camino de Engombe, Santo Domingo 10904, Dominican Republic
| | - Jorge Lozano-Juste
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de València (UPV), Calle Ingeniero Fausto Elio s/n, Edificio 8E, 46022 Valencia, Spain; (R.R.-P.); (S.M.R.)
- Correspondence:
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16
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Abstract
With the global climate anomalies and the destruction of ecological balance, the water shortage has become a serious ecological problem facing all mankind, and drought has become a key factor restricting the development of agricultural production. Therefore, it is essential to study the drought tolerance of crops. Based on previous studies, we reviewed the effects of drought stress on plant morphology and physiology, including the changes of external morphology and internal structure of root, stem, and leaf, the effects of drought stress on osmotic regulation substances, drought-induced proteins, and active oxygen metabolism of plants. In this paper, the main drought stress signals and signal transduction pathways in plants are described, and the functional genes and regulatory genes related to drought stress are listed, respectively. We summarize the above aspects to provide valuable background knowledge and theoretical basis for future agriculture, forestry breeding, and cultivation.
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17
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Zhu J, Li W, Zhou Y, Pei L, Liu J, Xia X, Che R, Li H. Molecular characterization, expression and functional analysis of acyl-CoA-binding protein gene family in maize (Zea mays). BMC PLANT BIOLOGY 2021; 21:94. [PMID: 33588749 PMCID: PMC7883581 DOI: 10.1186/s12870-021-02863-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 02/01/2021] [Indexed: 05/08/2023]
Abstract
BACKGROUND Acyl-CoA-binding proteins (ACBPs) possess a conserved acyl-CoA-binding (ACB) domain that facilitates binding to acyl-CoA esters and trafficking in eukaryotic cells. Although the various functions of ACBP have been characterized in several plant species, their structure, molecular evolution, expression profile, and function have not been fully elucidated in Zea mays L. RESULTS Genome-wide analysis identified nine ZmACBP genes in Z. mays, which could be divided into four distinct classes (class I, class II, class III, and class IV) via construction of a phylogenetic tree that included 48 ACBP genes from six different plant species. Transient expression of a ZmACBP-GFP fusion protein in tobacco (Nicotiana tabacum) epidermal cells revealed that ZmACBPs localized to multiple different locations. Analyses of expression profiles revealed that ZmACBPs exhibited temporal and spatial expression changes during abiotic and biotic stresses. Eight of the nine ZmACBP genes were also found to have significant association with agronomic traits in a panel of 500 maize inbred lines. The heterologous constitutive expression of ZmACBP1 and ZmACBP3 in Arabidopsis enhanced the resistance of these plants to salinity and drought stress, possibly through alterations in the level of lipid metabolic and stress-responsive genes. CONCLUSION The ACBP gene family was highly conserved across different plant species. ZmACBP genes had clear tissue and organ expression specificity and were responsive to both biotic and abiotic stresses, suggesting their roles in plant growth and stress resistance.
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Affiliation(s)
- Jiantang Zhu
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Weijun Li
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Yuanyuan Zhou
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Laming Pei
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Jiajia Liu
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Xinyao Xia
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Ronghui Che
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Hui Li
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
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18
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Yang H, Zhao Y, Chen N, Liu Y, Yang S, Du H, Wang W, Wu J, Tai F, Chen F, Hu X. A new adenylyl cyclase, putative disease-resistance RPP13-like protein 3, participates in abscisic acid-mediated resistance to heat stress in maize. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:283-301. [PMID: 32936902 DOI: 10.1093/jxb/eraa431] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 09/13/2020] [Indexed: 05/24/2023]
Abstract
In plants, 3´,5´-cyclic adenosine monophosphate (cAMP) is an important second messenger with varied functions; however, only a few adenylyl cyclases (ACs) that synthesize cAMP have been identified. Moreover, the biological roles of ACs/cAMP in response to stress remain largely unclear. In this study, we used quantitative proteomics techniques to identify a maize heat-induced putative disease-resistance RPP13-like protein 3 (ZmRPP13-LK3), which has three conserved catalytic AC centres. The AC activity of ZmRPP13-LK3 was confirmed by in vitro enzyme activity analysis, in vivo RNAi experiments, and functional complementation in the E. coli cyaA mutant. ZmRPP13-LK3 is located in the mitochondria. The results of in vitro and in vivo experiments indicated that ZmRPP13-LK3 interacts with ZmABC2, a possible cAMP exporter. Under heat stress, the concentrations of ZmRPP13-LK3 and cAMP in the ABA-deficient mutant vp5 were significantly less than those in the wild-type, and treatment with ABA and an ABA inhibitor affected ZmRPP13-LK3 expression in the wild-type. Application of 8-Br-cAMP, a cAMP analogue, increased heat-induced expression of heat-shock proteins in wild-type plants and alleviated heat-activated oxidative stress. Taken together, our results indicate that ZmRPP13-LK3, a new AC, can catalyse ATP for the production of cAMP and may be involved in ABA-regulated heat resistance.
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Affiliation(s)
- Hao Yang
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Yulong Zhao
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Ning Chen
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Yanpei Liu
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Shaoyu Yang
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Hanwei Du
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Wei Wang
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Jianyu Wu
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Fuju Tai
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Feng Chen
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Xiuli Hu
- State Key Laboratory of Wheat & Maize Crop Science, Henan Agricultural University, Zhengzhou, China
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19
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Hassan MJ, Geng W, Zeng W, Raza MA, Khan I, Iqbal MZ, Peng Y, Zhu Y, Li Z. Diethyl Aminoethyl Hexanoate Priming Ameliorates Seed Germination via Involvement in Hormonal Changes, Osmotic Adjustment, and Dehydrins Accumulation in White Clover Under Drought Stress. FRONTIERS IN PLANT SCIENCE 2021; 12:709187. [PMID: 34394164 PMCID: PMC8358406 DOI: 10.3389/fpls.2021.709187] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/05/2021] [Indexed: 05/03/2023]
Abstract
Drought is a serious outcome of climate change reducing the productivity of forage species under arid and semi-arid conditions worldwide. Diethyl aminoethyl hexanoate (DA-6), a novel plant growth regulator, has proven to be involved in the amelioration of critical physiological functions in many agricultural crops under various abiotic stresses, but the role of the DA-6 in improving seed germination has never been investigated under drought stress. The present study was carried out to elucidate the impact of the DA-6 priming on seeds germination of white clover under drought stress. Results showed that seed priming with the DA-6 significantly mitigated the drought-induced reduction in germination percentage, germination vigor, germination index, seed vigor index, root length, shoot length, and fresh weight after 7 days of seed germination. The DA-6 significantly increased the endogenous indole-3-acetic acid, gibberellin, and cytokinin content with marked reduction in abscisic acid content in seedlings under drought stress. In addition, the DA-6 significantly accelerated starch catabolism by enhancing the activities of hydrolases contributing toward enhanced soluble sugars, proline content and ameliorated the antioxidant defense system to enhance the ability of reactive oxygen species scavenging under drought stress. Furthermore, exogenous DA-6 application significantly increased dehydrins accumulation and upregulated transcript levels of genes encoding dehydrins (SK2, Y2SK, or DHNb) during seeds germination under water deficient condition. These findings suggested that the DA-6 mediated seeds germination and drought tolerance associated with changes in endogenous phytohormones resulting in increased starch degradation, osmotic adjustment, antioxidants activity, and dehydrins accumulation during seed germination under water deficient condition.
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Affiliation(s)
- Muhammad Jawad Hassan
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Wan Geng
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Weihang Zeng
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Muhammad Ali Raza
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - Imran Khan
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Muhammad Zafar Iqbal
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yan Peng
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yongqun Zhu
- Soil and Fertilizer Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- *Correspondence: Yongqun Zhu,
| | - Zhou Li
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
- Zhou Li,
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20
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Ofoe R. Signal transduction by plant heterotrimeric G-protein. PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23:3-10. [PMID: 32803877 DOI: 10.1111/plb.13172] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 08/09/2020] [Indexed: 06/11/2023]
Abstract
Heterotrimeric G-proteins are complexes that regulate important signalling pathways essential for growth and development in both plants and animals. Although plant cells are composed of the core components (Gα, Gβ and Gγ subunits) found in animal G-proteins, the complexities of the architecture, function and signalling mechanisms of those in animals are dissimilar to those identified in some plants. Current studies on plant G-proteins have improved knowledge of the essential physiological and agronomic properties, which when harnessed, could potentially impact global food security. Extensive studies on the molecular mechanisms underlying these properties in diverse plant species will be imperative in improving our current understanding of G-protein signalling pathways involved in plant growth and development. The advancement of G-protein signalling networks in distinct plant species could significantly aid in better crop development. This review summarizes current progress, novel discoveries and future prospects for this area in potential crop improvement.
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Affiliation(s)
- R Ofoe
- Department of Biology and Biochemistry, University of Bath, Bath, UK
- West African Centre for Crop Improvement, University of Ghana, Legon, Accra, Ghana
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21
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Magnone M, Sturla L, Guida L, Spinelli S, Begani G, Bruzzone S, Fresia C, Zocchi E. Abscisic Acid: A Conserved Hormone in Plants and Humans and a Promising Aid to Combat Prediabetes and the Metabolic Syndrome. Nutrients 2020; 12:nu12061724. [PMID: 32526875 PMCID: PMC7352484 DOI: 10.3390/nu12061724] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 12/25/2022] Open
Abstract
Abscisic acid (ABA) is a hormone with a very long evolutionary history, dating back to the earliest living organisms, of which modern (ABA-producing) cyanobacteria are likely the descendants, well before separation of the plant and animal kingdoms, with a conserved role as a signal regulating cell responses to environmental challenges. In mammals, nanomolar ABA controls the metabolic response to glucose availability by stimulating glucose uptake in skeletal muscle and adipose tissue with an insulin-independent mechanism and increasing energy expenditure in the brown and white adipose tissues. Activation by ABA of AMP-dependent kinase (AMPK), in contrast to the insulin-induced activation of AMPK-inhibiting Akt, is responsible for stimulation of GLUT4-mediated muscle glucose uptake, and for the browning effect on white adipocytes. Intake of micrograms per Kg body weight of ABA improves glucose tolerance in both normal and in borderline subjects and chronic intake of such a dose of ABA improves blood glucose, lipids and morphometric parameters (waist circumference and body mass index) in borderline subjects for prediabetes and the metabolic syndrome. This review summarizes the most recent results obtained in vivo with microgram amounts of ABA, the role of the receptor LANCL2 in the hormone’s action and the significance of the endowment by mammals of two different hormones controlling the metabolic response to glucose availability. Finally, open issues in need of further investigation and perspectives for the clinical use of nutraceutical ABA are discussed.
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Affiliation(s)
- Mirko Magnone
- Nutravis S.r.l., Via Corsica 2/19, 16128 Genova, Italy
- Department of Experimental Medicine, University of Genova, 16132 Genova, Italy; (L.S.); (L.G.); (S.S.); (G.B.); (S.B.)
- Correspondence: (M.M.); (E.Z.); Tel.: +39-10-3538131 (M.M.); +39-10-3538161 (E.Z.)
| | - Laura Sturla
- Department of Experimental Medicine, University of Genova, 16132 Genova, Italy; (L.S.); (L.G.); (S.S.); (G.B.); (S.B.)
| | - Lucrezia Guida
- Department of Experimental Medicine, University of Genova, 16132 Genova, Italy; (L.S.); (L.G.); (S.S.); (G.B.); (S.B.)
| | - Sonia Spinelli
- Department of Experimental Medicine, University of Genova, 16132 Genova, Italy; (L.S.); (L.G.); (S.S.); (G.B.); (S.B.)
| | - Giulia Begani
- Department of Experimental Medicine, University of Genova, 16132 Genova, Italy; (L.S.); (L.G.); (S.S.); (G.B.); (S.B.)
| | - Santina Bruzzone
- Department of Experimental Medicine, University of Genova, 16132 Genova, Italy; (L.S.); (L.G.); (S.S.); (G.B.); (S.B.)
| | - Chiara Fresia
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA;
| | - Elena Zocchi
- Department of Experimental Medicine, University of Genova, 16132 Genova, Italy; (L.S.); (L.G.); (S.S.); (G.B.); (S.B.)
- Correspondence: (M.M.); (E.Z.); Tel.: +39-10-3538131 (M.M.); +39-10-3538161 (E.Z.)
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22
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Ding P, Fang L, Wang G, Li X, Huang S, Gao Y, Zhu J, Xiao L, Tong J, Chen F, Xia G. Wheat methionine sulfoxide reductase A4.1 interacts with heme oxygenase 1 to enhance seedling tolerance to salinity or drought stress. PLANT MOLECULAR BIOLOGY 2019; 101:203-220. [PMID: 31297725 DOI: 10.1007/s11103-019-00901-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/04/2019] [Indexed: 06/10/2023]
Abstract
Here, a functional characterization of a wheat MSR has been presented: this protein makes a contribution to the plant's tolerance of abiotic stress, acting through its catalytic capacity and its modulation of ROS and ABA pathways. The molecular mechanism and function of certain members of the methionine sulfoxide reductase (MSR) gene family have been defined, however, these analyses have not included the wheat equivalents. The wheat MSR gene TaMSRA4.1 is inducible by salinity and drought stress and in this study, we demonstrate that its activity is restricted to the Met-S-SO enantiomer, and its subcellular localization is in the chloroplast. Furthermore, constitutive expression of TaMSRA4.1 enhanced the salinity and drought tolerance of wheat and Arabidopsis thaliana. In these plants constitutively expressing TaMSRA4.1, the accumulation of reactive oxygen species (ROS) was found to be influenced through the modulation of genes encoding proteins involved in ROS signaling, generation and scavenging, while the level of endogenous abscisic acid (ABA), and the sensitivity of stomatal guard cells to exogenous ABA, was increased. A yeast two-hybrid screen, bimolecular fluorescence complementation and co-immunoprecipitation assays demonstrated that heme oxygenase 1 (HO1) interacted with TaMSRA4.1, and that this interaction depended on a TaHO1 C-terminal domain. In plants subjected to salinity or drought stress, TaMSRA4.1 reversed the oxidation of TaHO1, activating ROS and ABA signaling pathways, but not in the absence of HO1. The aforementioned properties advocate TaMSRA4.1 as a candidate for plant genetic enhancement.
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Affiliation(s)
- Pengcheng Ding
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Linlin Fang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Guangling Wang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Xiang Li
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Shu Huang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Yankun Gao
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Jiantang Zhu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Langtao Xiao
- Hunan Provincial Key Laboratory of Phytohormones, Southern Regional Collaborative Innovation Center for Grain and Oil Crops, Hunan Agricultural University, Changsha, 410128, China
| | - Jianhua Tong
- Hunan Provincial Key Laboratory of Phytohormones, Southern Regional Collaborative Innovation Center for Grain and Oil Crops, Hunan Agricultural University, Changsha, 410128, China
| | - Fanguo Chen
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China.
| | - Guangmin Xia
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
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Al-Hijab L, Gregg A, Davies R, Macdonald H, Ladomery M, Wilson I. Abscisic acid induced a negative geotropic response in dark-incubated Chlamydomonas reinhardtii. Sci Rep 2019; 9:12063. [PMID: 31427663 PMCID: PMC6700132 DOI: 10.1038/s41598-019-48632-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 08/06/2019] [Indexed: 12/27/2022] Open
Abstract
The phytohormone abscisic acid (ABA) plays a role in stresses that alter plant water status and may also regulate root gravitropism and hydrotropism. ABA also exists in the aquatic algal progenitors of land plants, but other than its involvement in stress responses, its physiological role in these microorganisms remains elusive. We show that exogenous ABA significantly altered the HCO3- uptake of Chamydomonas reinhardtii in a light-intensity-dependent manner. In high light ABA enhanced HCO3- uptake, while under low light uptake was diminished. In the dark, ABA induced a negative geotropic movement of the algae to an extent dependent on the time of sampling during the light/dark cycle. The algae also showed a differential, light-dependent directional taxis response to a fixed ABA source, moving horizontally towards the source in the light and away in the dark. We conclude that light and ABA signal competitively in order for algae to position themselves in the water column to minimise photo-oxidative stress and optimise photosynthetic efficiency. We suggest that the development of this response mechanism in motile algae may have been an important step in the evolution of terrestrial plants and that its retention therein strongly implicates ABA in the regulation of their relevant tropisms.
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Affiliation(s)
- Layla Al-Hijab
- University of the West of England, Bristol; Department of Applied Sciences, Faculty of Health and Applied Sciences; Frenchay Campus, Coldharbour Lane, Bristol, BS16 1QY, United Kingdom
| | - Adam Gregg
- University of the West of England, Bristol; Department of Applied Sciences, Faculty of Health and Applied Sciences; Frenchay Campus, Coldharbour Lane, Bristol, BS16 1QY, United Kingdom
| | - Rhiannon Davies
- University of the West of England, Bristol; Department of Applied Sciences, Faculty of Health and Applied Sciences; Frenchay Campus, Coldharbour Lane, Bristol, BS16 1QY, United Kingdom
| | - Heather Macdonald
- University of the West of England, Bristol; Department of Applied Sciences, Faculty of Health and Applied Sciences; Frenchay Campus, Coldharbour Lane, Bristol, BS16 1QY, United Kingdom
| | - Michael Ladomery
- University of the West of England, Bristol; Department of Applied Sciences, Faculty of Health and Applied Sciences; Frenchay Campus, Coldharbour Lane, Bristol, BS16 1QY, United Kingdom
| | - Ian Wilson
- University of the West of England, Bristol; Department of Applied Sciences, Faculty of Health and Applied Sciences; Frenchay Campus, Coldharbour Lane, Bristol, BS16 1QY, United Kingdom.
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Evidence to Suggest Bacterial Lipoprotein Diacylglyceryl Transferase (Lgt) is a Weakly Associated Inner Membrane Protein. J Membr Biol 2019; 252:563-575. [DOI: 10.1007/s00232-019-00076-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 06/14/2019] [Indexed: 10/26/2022]
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Anunanthini P, Manoj VM, Sarath Padmanabhan TS, Dhivya S, Narayan JA, Appunu C, Sathishkumar R. In silico characterisation and functional validation of chilling tolerant divergence 1 (COLD1) gene in monocots during abiotic stress. FUNCTIONAL PLANT BIOLOGY : FPB 2019; 46:524-532. [PMID: 30940337 DOI: 10.1071/fp18189] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
The G protein-coupled receptor is one of the major transmembrane proteins in plants. It consists of an α subunit, a β subunit and three γ subunits. Chilling tolerant divergence 1 (COLD1) includes a Golgi pH receptor (GPHR) domain, which maintains cell membrane organisation and dynamics, along with abscisic acid linked G protein-coupled receptor (ABA_GPCR) that regulates the signalling pathways during cold stress. In the present study, we performed characterisation of a homologous COLD1 from the economically important monocot species Oryza sativa L., Zea mays L., Sorghum bicolor (L.)Moench and Erianthus arundinaceus (L.) Beauv. IK 76-81, a wild relative of Saccharum. COLD1 was isolated from E. arundinaceus IK 76-81, analysed for its evolution, domain, membrane topology, followed by prediction of secondary, tertiary structures and functionally validated in all four different monocots. Gene expression studies of COLD1 revealed differential expression under heat, drought, salinity and cold stresses in selected monocots. This is the first study on regulation of native COLD1 during abiotic stress in monocots, which has opened up new leads for trait improvement strategies in this economically important crop species.
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Affiliation(s)
- P Anunanthini
- Plant Genetic Engineering Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore, India
| | - V M Manoj
- Genetic Transformation Lab, Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, India
| | - T S Sarath Padmanabhan
- Genetic Transformation Lab, Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, India
| | - S Dhivya
- Plant Genetic Engineering Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore, India
| | - J Ashwin Narayan
- Genetic Transformation Lab, Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, India
| | - C Appunu
- Genetic Transformation Lab, Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, India; and Corresponding authors. Emails: ;
| | - R Sathishkumar
- Plant Genetic Engineering Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore, India; and Corresponding authors. Emails: ;
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Zhu J, Wang G, Li C, Li Q, Gao Y, Chen F, Xia G. Maize Sep15-like functions in endoplasmic reticulum and reactive oxygen species homeostasis to promote salt and osmotic stress resistance. PLANT, CELL & ENVIRONMENT 2019; 42:1486-1502. [PMID: 30577086 DOI: 10.1111/pce.13507] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 12/12/2018] [Accepted: 12/16/2018] [Indexed: 05/21/2023]
Abstract
In animals, the Sep15 protein participates in disease resistance, growth, and development, but the function of its plant homologues remains unclear. Here, the function of maize Sep15 was analysed by characterization of two independent Sep15-like loss-of-function mutants. In the absence of ZmSep15-like, seedling tolerance to both water and salinity stress was compromised. The mutants experienced a heightened level of endoplasmic reticulum stress, and over-accumulated reactive oxygen species, resulting in leaf necrosis. Characterization of Arabidopsis thaliana atsep15 mutant as well as like with ectopic expression of ZmSep15-like indicated that ZmSep15-like contributed to tolerance of both osmotic and salinity stress. ZmSep15-like interacted physically with UDP-glucose: glycoprotein glucosyltransferase1 (UGGT1). When the interaction was disrupted, the response to both osmotic and salinity stresses was impaired in maize or Arabidopsis. Co-expressing ZmUGGT1 and ZmUGGT2 enhanced the tolerance of A. thaliana to both stressors, indicating a functional interaction between them. Together, the data indicated that plants Sep15-like proteins promote osmotic and salinity stress resistance by influencing endoplasmic reticulum stress response and reactive oxygen species level.
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Affiliation(s)
- Jiantang Zhu
- The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong University, Jinan, China
| | - Guangling Wang
- The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong University, Jinan, China
| | - Cuiling Li
- The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong University, Jinan, China
| | - Qingqing Li
- The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong University, Jinan, China
| | - Yankun Gao
- The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong University, Jinan, China
| | - Fanguo Chen
- The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong University, Jinan, China
| | - Guangmin Xia
- The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong University, Jinan, China
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Millar AJ, Urquiza U, Freeman PL, Hume A, Plotkin GD, Sorokina O, Zardilis A, Zielinski T. Practical steps to digital organism models, from laboratory model species to 'Crops in silico. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:2403-2418. [PMID: 30615184 DOI: 10.1093/jxb/ery435] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/28/2018] [Indexed: 05/20/2023]
Abstract
A recent initiative named 'Crops in silico' proposes that multi-scale models 'have the potential to fill in missing mechanistic details and generate new hypotheses to prioritize directed engineering efforts' in plant science, particularly directed to crop species. To that end, the group called for 'a paradigm shift in plant modelling, from largely isolated efforts to a connected community'. 'Wet' (experimental) research has been especially productive in plant science, since the adoption of Arabidopsis thaliana as a laboratory model species allowed the emergence of an Arabidopsis research community. Parts of this community invested in 'dry' (theoretical) research, under the rubric of Systems Biology. Our past research combined concepts from Systems Biology and crop modelling. Here we outline the approaches that seem most relevant to connected, 'digital organism' initiatives. We illustrate the scale of experimental research required, by collecting the kinetic parameter values that are required for a quantitative, dynamic model of a gene regulatory network. By comparison with the Systems Biology Markup Language (SBML) community, we note computational resources and community structures that will help to realize the potential for plant Systems Biology to connect with a broader crop science community.
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Affiliation(s)
- Andrew J Millar
- SynthSys and School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Uriel Urquiza
- SynthSys and School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | | | - Alastair Hume
- SynthSys and School of Biological Sciences, University of Edinburgh, Edinburgh, UK
- EPCC, Bayes Centre, University of Edinburgh, Edinburgh, UK
| | - Gordon D Plotkin
- Laboratory for the Foundations of Computer Science, School of Informatics, University of Edinburgh, Edinburgh, UK
| | - Oxana Sorokina
- Institute for Adaptive and Neural Computation, School of Informatics, University of Edinburgh, Edinburgh, UK
| | - Argyris Zardilis
- SynthSys and School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Tomasz Zielinski
- SynthSys and School of Biological Sciences, University of Edinburgh, Edinburgh, UK
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Chumikina LV, Arabova LI, Kolpakova VV, Topunov AF. The Role of Phytohormones in the Regulation of the Tolerance of Wheat, Rye, and Triticale Seeds to the Effect of Elevated Temperatures during Germination. APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819010046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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29
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Zhao XY, Qi CH, Jiang H, You CX, Guan QM, Ma FW, Li YY, Hao YJ. The MdWRKY31 transcription factor binds to the MdRAV1 promoter to mediate ABA sensitivity. HORTICULTURE RESEARCH 2019; 6:66. [PMID: 31231524 PMCID: PMC6544635 DOI: 10.1038/s41438-019-0147-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/29/2019] [Accepted: 03/31/2019] [Indexed: 05/02/2023]
Abstract
The phytohormone abscisic acid (ABA) is a major element involved in apple (Malus domestica) production because of its role in seed germination and early seedling development. The WRKY family, which is one of the largest families of transcription factors, plays an important role in ABA signaling in plants. However, the underlying molecular mechanisms of WRKY-mediated ABA sensitivity in apple are poorly understood. A genome-wide transcriptome analysis indicated that MdWRKY31 is a key factor induced by ABA. Quantitative real-time PCR showed that MdWRKY31 is induced by ABA in response to PEG4000, which is used to simulate drought. As a transcription factor, MdWRKY31 is localized in the nucleus. Ectopic expression of MdWRKY31 in Arabidopsis and Nicotiana benthamiana enhanced plant sensitivity to ABA. Overexpression of MdWRKY31 in apple roots and apple calli increased sensitivity to ABA, whereas repression of MdWRKY31 reduced sensitivity to ABA in the roots of 'Royal Gala'. Electrophoretic mobility shift assays, chromatin immunoprecipitation PCR, and yeast one-hybrid assays indicated that MdWRKY31 directly binds to the promoter of MdRAV1. Expression analyses of transgenic apple calli containing MdWRKY31 and pMdRAV1::GUS implied that MdWRKY31 represses the expression of MdRAV1. We also found that MdRAV1 binds directly to the promoters of MdABI3 and MdABI4 and repressed their expression. Our findings reveal a new important regulatory mechanism of MdWRKY31-MdRAV1-MdABIs in the ABA signaling pathway in apple.
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Affiliation(s)
- Xian-Yan Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Chen-Hui Qi
- National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271018 China
| | - Han Jiang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Chun-Xiang You
- National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271018 China
| | - Qing-Mei Guan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Feng-Wang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Yuan-Yuan Li
- National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271018 China
| | - Yu-Jin Hao
- National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271018 China
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Wong GR, Mazumdar P, Lau SE, Harikrishna JA. Ectopic expression of a Musa acuminata root hair defective 3 (MaRHD3) in Arabidopsis enhances drought tolerance. JOURNAL OF PLANT PHYSIOLOGY 2018; 231:219-233. [PMID: 30292098 DOI: 10.1016/j.jplph.2018.09.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 08/14/2018] [Accepted: 09/20/2018] [Indexed: 05/24/2023]
Abstract
Genetic improvement is an important approach for crop improvement towards yield stability in stress-prone areas. Functional analysis of candidate stress response genes can provide key information to allow the selection and modification of improved crop varieties. In this study, the constitutive expression of a banana cDNA, MaRHD3 in Arabidopsis improved the ability of transgenic lines to adapt to drought conditions. Transgenic Arabidopsis plants expressing MaRHD3 had roots with enhanced branching and more root hairs when challenged with drought stress. The MaRHD3 plants had higher biomass accumulation, higher relative water content, higher chlorophyll content and an increase in activity of reactive oxygen species (ROS) scavenging enzymes; SOD, CAT, GR, POD and APX with reduced water loss rates compared to control plants. The analysis of oxidative damage indicated lower cell membrane damage in transgenic lines compared to control plants. These findings, together with data from higher expression of ABF-3 and higher ABA content of drought-stressed transgenic MaRHD3 expressing plants, support the involvement of the ABA signal pathway and ROS scavenging enzyme systems in MaRHD3 mediated drought tolerance.
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Affiliation(s)
- Gwo Rong Wong
- Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Purabi Mazumdar
- Centre for Research in Biotechnology for Agriculture, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Su-Ee Lau
- Centre for Research in Biotechnology for Agriculture, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Jennifer Ann Harikrishna
- Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia; Centre for Research in Biotechnology for Agriculture, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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Phytohormones, Isoprenoids, and Role of the Apicoplast in Recovery from Dihydroartemisinin-Induced Dormancy of Plasmodium falciparum. Antimicrob Agents Chemother 2018; 62:AAC.01771-17. [PMID: 29311075 DOI: 10.1128/aac.01771-17] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 12/19/2017] [Indexed: 11/20/2022] Open
Abstract
Many organisms undergo dormancy as a stress response to survive under unfavorable conditions that might impede development. This is observed in seeds and buds of plants and has been proposed as a mechanism of drug evasion and resistance formation in Plasmodium falciparum We explored the effects of the phytohormones abscisic acid (ABA) and gibberellic acid (GA) on dihydroartemisinin (DHA)-induced dormant erythrocytic stages of P. falciparum parasites. Dormant ring stages exposed to ABA and GA recovered from dormancy up to 48 h earlier than parasites exposed to DHA alone. Conversely, fluridone, an herbicide inhibitor of ABA synthesis, blocked emergence from dormancy. Additionally, the role of the apicoplast was assessed in dormant parasite recovery. Apicoplast-deficient P. falciparum remained viable for up to 8 days without the organelle and recrudesced only when supplemented with isopentyl pyrophosphate (IPP). IPP was not required for survival in the dormant state. Fosmidomycin inhibition of isoprenoid biosynthesis did not prevent dormancy release from occurring in parasites with an intact apicoplast, but IPP or geranylgeranyl pyrophosphate was needed for complete recrudescence. In addition, the apicoplast and specifically the isoprenoids it produces are essential for recovery of dormant parasites. In summary, ABA and GA have significant effects on dormant parasites, and the phenotypes produced by these phytohormones and the herbicide fluridone also provide a means to explore the mechanism(s) underlying dormancy and the regulatory network that promotes cell cycle arrest in P. falciparum.
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Ma Z, Bykova NV, Igamberdiev AU. Cell signaling mechanisms and metabolic regulation of germination and dormancy in barley seeds. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.cj.2017.08.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Li K, Xu C, Huang J, Liu W, Zhang L, Wan W, Tao H, Li L, Lin S, Harrison A, He H. Prediction and identification of the effectors of heterotrimeric G proteins in rice (Oryza sativa L.). Brief Bioinform 2017; 18:270-278. [PMID: 26970777 DOI: 10.1093/bib/bbw021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Indexed: 11/14/2022] Open
Abstract
Heterotrimeric G protein signaling cascades are one of the primary metazoan sensing mechanisms linking a cell to environment. However, the number of experimentally identified effectors of G protein in plant is limited. We have therefore studied which tools are best suited for predicting G protein effectors in rice. Here, we compared the predicting performance of four classifiers with eight different encoding schemes on the effectors of G proteins by using 10-fold cross-validation. Four methods were evaluated: random forest, naive Bayes, K-nearest neighbors and support vector machine. We applied these methods to experimentally identified effectors of G proteins and randomly selected non-effector proteins, and tested their sensitivity and specificity. The result showed that random forest classifier with composition of K-spaced amino acid pairs and composition of motif or domain (CKSAAP_PROSITE_200) combination method yielded the best performance, with accuracy and the Mathew's correlation coefficient reaching 74.62% and 0.49, respectively. We have developed G-Effector, an online predictor, which outperforms BLAST, PSI-BLAST and HMMER on predicting the effectors of G proteins. This provided valuable guidance for the researchers to select classifiers combined with different feature selection encoding schemes. We used G-Effector to screen the effectors of G protein in rice, and confirmed the candidate effectors by gene co-expression data. Interestingly, one of the top 15 candidates, which did not appear in the training data set, was validated in a previous research work. Therefore, the candidate effectors list in this article provides both a clue for researchers as to their function and a framework of validation for future experimental work. It is accessible at http://bioinformatics.fafu.edu.cn/geffector.
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Affiliation(s)
- Kuan Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P. R. China
| | - Chaoqun Xu
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jian Huang
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wei Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, China; State Key Laboratory of Microbial Metabolism, School of Life Science & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, China; Huzhou Center of Bio-Synthetic Innovation, 1366 Hongfeng Road, Huzhou, China
| | - Lina Zhang
- Department of Biology, University of California at San Diego, La Jolla, California, USA
| | - Weifeng Wan
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Huan Tao
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ling Li
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Maize Research Institute of Sichuan Agricultural University, Chengdu, Sichuan Province, China
| | - Shoukai Lin
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Andrew Harrison
- Department of Mathematical Sciences, University of Essex, Wivenhoe Park, Colchester, UK
| | - Huaqin He
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
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Chen Y, Feng L, Wei N, Liu ZH, Hu S, Li XB. Overexpression of cotton PYL genes in Arabidopsis enhances the transgenic plant tolerance to drought stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 115:229-238. [PMID: 28388505 DOI: 10.1016/j.plaphy.2017.03.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 03/11/2017] [Accepted: 03/28/2017] [Indexed: 05/06/2023]
Abstract
PYR/PYL/RCAR proteins are putative abscisic acid (ABA) receptors that play important roles in plant responses to biotic and abiotic stresses. In this study, 27 predicted PYL proteins were identified in cotton (Gossypium hirsutum). Sequence analysis showed they are conserved in structures. Phylogenetic analysis showed that cotton PYL family could be categorized into three groups. Yeast two-hybrid assay revealed that the GhPYL proteins selectively interacted with some GhPP2C proteins. Quantitative RT-PCR analysis indicated that the most of nine GhPYL genes were down-regulated, while the other three were up-regulated in cotton under drought stress. Overexpression of GhPYL10/12/26 in Arabidopsis conferred the transgenic plants increased ABA sensitivity during seed germination and early seedling growth. On the contrary, the transgenic seedlings displayed better growth status and longer primary roots under normal conditions and mannitol stress, compared with wild type. Furthermore, the transgenic plants showed the enhanced drought tolerance, relative to wild type, when they were suffered from drought stress. Expression of some stress-related genes in transgenic plants was significant higher than that in wild type under osmotic stress. Thus, our data suggested that these cotton PYL genes may be involved in plant response and defense to drought/osmotic stress.
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Affiliation(s)
- Yun Chen
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Li Feng
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Ning Wei
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Zhi-Hao Liu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Shan Hu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Xue-Bao Li
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China.
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Lievens L, Pollier J, Goossens A, Beyaert R, Staal J. Abscisic Acid as Pathogen Effector and Immune Regulator. FRONTIERS IN PLANT SCIENCE 2017; 8:587. [PMID: 28469630 PMCID: PMC5395610 DOI: 10.3389/fpls.2017.00587] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Accepted: 03/31/2017] [Indexed: 05/18/2023]
Abstract
Abscisic acid (ABA) is a sesquiterpene signaling molecule produced in all kingdoms of life. To date, the best known functions of ABA are derived from its role as a major phytohormone in plant abiotic stress resistance. Different organisms have developed different biosynthesis and signal transduction pathways related to ABA. Despite this, there are also intriguing common themes where ABA often suppresses host immune responses and is utilized by pathogens as an effector molecule. ABA also seems to play an important role in compatible mutualistic interactions such as mycorrhiza and rhizosphere bacteria with plants, and possibly also the animal gut microbiome. The frequent use of ABA in inter-species communication could be a possible reason for the wide distribution and re-invention of ABA as a signaling molecule in different organisms. In humans and animal models, it has been shown that ABA treatment or nutrient-derived ABA is beneficial in inflammatory diseases like colitis and type 2 diabetes, which confer potential to ABA as an interesting nutraceutical or pharmacognostic drug. The anti-inflammatory activity, cellular metabolic reprogramming, and other beneficial physiological and psychological effects of ABA treatment in humans and animal models has sparked an interest in this molecule and its signaling pathway as a novel pharmacological target. In contrast to plants, however, very little is known about the ABA biosynthesis and signaling in other organisms. Genes, tools and knowledge about ABA from plant sciences and studies of phytopathogenic fungi might benefit biomedical studies on the physiological role of endogenously generated ABA in humans.
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Affiliation(s)
- Laurens Lievens
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIBGhent, Belgium
- Department of Biomedical Molecular Biology, Ghent UniversityGhent, Belgium
| | - Jacob Pollier
- VIB-UGent Center for Plant Systems Biology, VIBGhent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
| | - Alain Goossens
- VIB-UGent Center for Plant Systems Biology, VIBGhent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
| | - Rudi Beyaert
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIBGhent, Belgium
- Department of Biomedical Molecular Biology, Ghent UniversityGhent, Belgium
| | - Jens Staal
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIBGhent, Belgium
- Department of Biomedical Molecular Biology, Ghent UniversityGhent, Belgium
- *Correspondence: Jens Staal
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Yu J, Ge H, Wang X, Tang R, Wang Y, Zhao F, Lan W, Luan S, Yang L. Overexpression of Pyrabactin Resistance-Like Abscisic Acid Receptors Enhances Drought, Osmotic, and Cold Tolerance in Transgenic Poplars. FRONTIERS IN PLANT SCIENCE 2017; 8:1752. [PMID: 29081783 PMCID: PMC5645508 DOI: 10.3389/fpls.2017.01752] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Accepted: 09/25/2017] [Indexed: 05/17/2023]
Abstract
Abscisic acid (ABA) has been known participate in a wider range of adaptive responses to diverse environmental abiotic stresses such as drought, osmosis, and low temperatures. ABA signaling is initiated by its receptors PYR/PYL/RCARs, a type of soluble proteins with a conserved START domain which can bind ABA and trigger the downstream pathway. Previously, we discovered that poplar (Populus trichocarpa) genome encodes 14 PYR/PYL/RCAR orthologs (PtPYRLs), and two of them, PtPYRL1 and PtPYRL5 have been functionally characterized to positively regulate drought tolerance. However, the physiological function of these ABA receptors in poplar remains uncharacterized. Here, we generated transgenic poplar plants overexpressing PtPYRL1 and PtPYRL5 and found that they exhibited more vigorous growth and produced greater biomass when exposed to drought stress. The improved drought tolerance was positively correlated with the key physiological responses dictated by the ABA signaling pathway, including increase in stomatal closure and decrease in leaf water loss. Further analyses revealed that overexpression lines showed improved capacity in scavenging reactive oxygen species and enhanced the activation of antioxidant enzymes under drought stress. Moreover, overexpression of PtPYRL1 or PtPYRL5 significantly increased the poplar resistance to osmotic and cold stresses. In summary, our results suggest that constitutive expression of PtPYRL1 and PtPYRL5 significantly enhances the resistance to drought, osmotic and cold stresses by positively regulating ABA signaling in poplar.
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Affiliation(s)
- Jingling Yu
- State Key Laboratory for Pharmaceutical Biotechnology, NJU–NFU Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing, China
| | - Haiman Ge
- State Key Laboratory for Pharmaceutical Biotechnology, NJU–NFU Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing, China
| | - Xiaokun Wang
- State Key Laboratory for Pharmaceutical Biotechnology, NJU–NFU Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing, China
| | - Renjie Tang
- Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, United States
| | - Yuan Wang
- State Key Laboratory for Pharmaceutical Biotechnology, NJU–NFU Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing, China
| | - Fugeng Zhao
- State Key Laboratory for Pharmaceutical Biotechnology, NJU–NFU Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing, China
| | - Wenzhi Lan
- State Key Laboratory for Pharmaceutical Biotechnology, NJU–NFU Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing, China
- *Correspondence: Wenzhi Lan, Sheng Luan, Lei Yang,
| | - Sheng Luan
- State Key Laboratory for Pharmaceutical Biotechnology, NJU–NFU Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing, China
- Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, United States
- *Correspondence: Wenzhi Lan, Sheng Luan, Lei Yang,
| | - Lei Yang
- State Key Laboratory for Pharmaceutical Biotechnology, NJU–NFU Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing, China
- *Correspondence: Wenzhi Lan, Sheng Luan, Lei Yang,
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Zhu JK. Abiotic Stress Signaling and Responses in Plants. Cell 2016; 167:313-324. [PMID: 27716505 DOI: 10.1007/978-1-4614-0634-1_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/16/2016] [Accepted: 08/16/2016] [Indexed: 05/27/2023]
Abstract
As sessile organisms, plants must cope with abiotic stress such as soil salinity, drought, and extreme temperatures. Core stress-signaling pathways involve protein kinases related to the yeast SNF1 and mammalian AMPK, suggesting that stress signaling in plants evolved from energy sensing. Stress signaling regulates proteins critical for ion and water transport and for metabolic and gene-expression reprogramming to bring about ionic and water homeostasis and cellular stability under stress conditions. Understanding stress signaling and responses will increase our ability to improve stress resistance in crops to achieve agricultural sustainability and food security for a growing world population.
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Affiliation(s)
- Jian-Kang Zhu
- Shanghai Center for Plant Stress Biology and Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 201602, China; Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA.
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Ma D, Ding H, Wang C, Qin H, Han Q, Hou J, Lu H, Xie Y, Guo T. Alleviation of Drought Stress by Hydrogen Sulfide Is Partially Related to the Abscisic Acid Signaling Pathway in Wheat. PLoS One 2016; 11:e0163082. [PMID: 27649534 PMCID: PMC5029883 DOI: 10.1371/journal.pone.0163082] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 09/04/2016] [Indexed: 01/09/2023] Open
Abstract
Little information is available describing the effects of exogenous H2S on the ABA pathway in the acquisition of drought tolerance in wheat. In this study, we investigated the physiological parameters, the transcription levels of several genes involved in the abscisic acid (ABA) metabolism pathway, and the ABA and H2S contents in wheat leaves and roots under drought stress in response to exogenous NaHS treatment. The results showed that pretreatment with NaHS significantly increased plant height and the leaf relative water content of seedlings under drought stress. Compared with drought stress treatment alone, H2S application increased antioxidant enzyme activities and reduced MDA and H2O2 contents in both leaves and roots. NaHS pretreatment increased the expression levels of ABA biosynthesis and ABA reactivation genes in leaves; whereas the expression levels of ABA biosynthesis and ABA catabolism genes were up-regulated in roots. These results indicated that ABA participates in drought tolerance induced by exogenous H2S, and that the responses in leaves and roots are different. The transcription levels of genes encoding ABA receptors were up-regulated in response to NaHS pretreatment under drought conditions in both leaves and roots. Correspondingly, the H2S contents in leaves and roots were increased by NaHS pretreatment, while the ABA contents of leaves and roots decreased. This implied that there is complex crosstalk between these two signal molecules, and that the alleviation of drought stress by H2S, at least in part, involves the ABA signaling pathway.
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Affiliation(s)
- Dongyun Ma
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
- The National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Huina Ding
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
| | - Chenyang Wang
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
- The National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Haixia Qin
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
| | - Qiaoxia Han
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
| | - Junfeng Hou
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
| | - Hongfang Lu
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
- The Collaborative Innovation Center of Henan Food Crops, Henan Agricultural University, Zhengzhou 45002, China
| | - Yingxin Xie
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
- The Collaborative Innovation Center of Henan Food Crops, Henan Agricultural University, Zhengzhou 45002, China
| | - Tiancai Guo
- National Engineering Research Center for Wheat, Agronomy, Henan Agricultural University, Zhengzhou 450002, China
- The Collaborative Innovation Center of Henan Food Crops, Henan Agricultural University, Zhengzhou 45002, China
- * E-mail:
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Verslues PE. ABA and cytokinins: challenge and opportunity for plant stress research. PLANT MOLECULAR BIOLOGY 2016; 91:629-640. [PMID: 26910054 DOI: 10.1007/s11103-016-0458-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 02/19/2016] [Indexed: 06/05/2023]
Abstract
Accumulation of the stress hormone abscisic acid (ABA) induces many cellular mechanisms associated with drought resistance. Recent years have seen a rapid advance in our knowledge of how increased ABA levels are perceived by ABA receptors, particularly the PYL/RCAR receptors, but there has been relatively less new information about how ABA accumulation is controlled and matched to stress severity. ABA synthesis and catabolism, conjugation and deconjugation to glucose, and ABA transport all are involved in controlling ABA levels. This highly buffered system of ABA metabolism represents both a challenge and opportunity in developing a mechanistic understanding of how plants detect and respond to drought. Recent data have also shown that direct manipulation of cytokinin levels in transgenic plants has dramatic effect on drought phenotypes and prompted new interest in the role of cytokinins and cytokinin signaling in drought. Both ABA and cytokinins will continue to be major foci of drought research but likely with different trajectories both in terms of basic research and in translational research aimed at increasing plant performance during drought.
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Affiliation(s)
- Paul E Verslues
- Institute of Plant and Microbial Biology, Academia Sinica, No. 128 Sec. 2 Academia Rd, Nankang Dist., Taipei, 11529, Taiwan.
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40
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Trusov Y, Botella JR. Plant G-Proteins Come of Age: Breaking the Bond with Animal Models. Front Chem 2016; 4:24. [PMID: 27252940 PMCID: PMC4877378 DOI: 10.3389/fchem.2016.00024] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/04/2016] [Indexed: 11/29/2022] Open
Abstract
G-proteins are universal signal transducers mediating many cellular responses. Plant G-protein signaling has been modeled on the well-established animal paradigm but accumulated experimental evidence indicates that G-protein-dependent signaling in plants has taken a very different evolutionary path. Here we review the differences between plant and animal G-proteins reported over past two decades. Most importantly, while in animal systems the G-protein signaling cycle is activated by seven transmembrane-spanning G-protein coupled receptors, the existence of these type of receptors in plants is highly controversial. Instead plant G-proteins have been proven to be functionally associated with atypical receptors such as the Arabidopsis RGS1 and a number of receptor-like kinases. We propose that, instead of the GTP/GDP cycle used in animals, plant G-proteins are activated/de-activated by phosphorylation/de-phosphorylation. We discuss the need of a fresh new look at these signaling molecules and provide a hypothetical model that departs from the accepted animal paradigm.
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Affiliation(s)
- Yuri Trusov
- School of Agriculture and Food Sciences, University of Queensland Brisbane, QLD, Australia
| | - José R Botella
- School of Agriculture and Food Sciences, University of Queensland Brisbane, QLD, Australia
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Osorio-Guarín JA, Enciso-Rodríguez FE, González C, Fernández-Pozo N, Mueller LA, Barrero LS. Association analysis for disease resistance to Fusarium oxysporum in cape gooseberry (Physalis peruviana L). BMC Genomics 2016; 17:248. [PMID: 26988219 PMCID: PMC4797340 DOI: 10.1186/s12864-016-2568-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 03/07/2016] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Vascular wilt caused by Fusarium oxysporum is the most important disease in cape gooseberry (Physalis peruviana L.) in Colombia. The development of resistant cultivars is considered one of the most cost-effective means to reduce the impact of this disease. In order to do so, it is necessary to provide breeders with molecular markers and promising germplasm for introgression of different resistance loci as part of breeding schemes. Here we described an association mapping study in cape gooseberry with the goal to: (i) select promising materials for use in plant breeding and (ii) identify SNPs associated with the cape gooseberry resistance response to the F. oxysporum pathogen under greenhouse conditions, as potential markers for cape gooseberry breeding. RESULTS We found a total of 21 accessions with different resistance responses within a diversity panel of 100 cape gooseberry accessions. A total of 60,663 SNPs were also identified within the same panel by means of GBS (Genotyping By Sequencing). Model-based population structure and neighbor-joining analyses showed three populations comprising the cape gooseberry panel. After correction for population structure and kinship, we identified SNPs markers associated with the resistance response against F. oxysporum. The identification of markers was based on common tags using the reference genomes of tomato and potato as well as the root/stem transcriptome of cape gooseberry. By comparing their location with the tomato genome, 16 SNPs were found in genes involved in defense/resistance response to pathogens, likewise when compared with the genome of potato, 12 markers were related. CONCLUSIONS The work presented herein provides the first association mapping study in cape gooseberry showing both the identification of promising accessions with resistance response phenotypes and the identification of a set of SNP markers mapped to defense/resistance response genes of reference genomes. Thus, the work also provides new knowledge on candidate genes involved in the P. peruviana - F. oxysporum pathosystem as a foundation for further validation in marker-assisted selection. The results have important implications for conservation and breeding strategies in cape gooseberry.
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Affiliation(s)
- Jaime A. Osorio-Guarín
- />Tibaitatá Research Center, Colombian Corporation for Agricultural Research, Corpoica, Km 14 vía Mosquera, Bogotá, Colombia
| | - Felix E. Enciso-Rodríguez
- />Tibaitatá Research Center, Colombian Corporation for Agricultural Research, Corpoica, Km 14 vía Mosquera, Bogotá, Colombia
| | - Carolina González
- />Tibaitatá Research Center, Colombian Corporation for Agricultural Research, Corpoica, Km 14 vía Mosquera, Bogotá, Colombia
| | | | | | - Luz Stella Barrero
- />Agrobiodiversity Department, National Direction of Research and Development, Corpoica, Km 14 vía Mosquera, Bogotá, Colombia
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42
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Zhao J, Zhou H, Zhang M, Gao Y, Li L, Gao Y, Li M, Yang Y, Guo Y, Li X. Ubiquitin-specific protease 24 negatively regulates abscisic acid signalling in Arabidopsis thaliana. PLANT, CELL & ENVIRONMENT 2016; 39:427-40. [PMID: 26290265 DOI: 10.1111/pce.12628] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 08/03/2015] [Accepted: 08/03/2015] [Indexed: 05/13/2023]
Abstract
Abscisic acid (ABA) is an important plant hormone integrating environmental stress and plant growth. Protein ubiquitination and deubiquitination are reversible processes catalysed by E3 ubiquitin ligase and deubiquitinating enzyme, respectively. Lots of E3 ubiquitin ligase and transcriptional factors modified by ubiquitination were reported to modulate ABA signalling. However, no deubiquitinating enzyme has been identified that functions in ABA signalling until now. Here, we isolated an ABA overly sensitive mutant, ubp24, in which the gene encoding ubiquitin-specific protease 24 (UBP24, At4g30890) was disrupted by a T-DNA insertion. The ubp24 mutant was hypersensitive to ABA and salt stress in both post-germinative growth and seedling growth. However, stomata closure in the ubp24 mutant was less sensitive to ABA, and the ubp24 mutant showed drought sensitivity. UBP24 possessed deubiquitinating enzyme activity, and the activity was essential for UBP24 function. Additionally, UBP24 formed homodimer in vivo. UBP24 was genetically upstream of ABI2, and the phosphatase activity of protein phosphatase 2C was decreased in the ubp24 mutant compared with the wild type in the presence of ABA. These results uncover an important regulatory role for the ubiquitin-specific protease in response to ABA and salt stress in plant.
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Affiliation(s)
- Jinfeng Zhao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Huapeng Zhou
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
- College of Life Science, Sichuan University, Chengdu, 610064, China
| | - Ming Zhang
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Academy of Agricultural Sciences, Industrial Crop Institute, Harbin, 150086, China
| | - Yanan Gao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Long Li
- College of Life Sciences, Shenyang Agricultural University, Shenyang, 110161, China
| | - Ying Gao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ming Li
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Yuhong Yang
- College of Life Sciences, Shenyang Agricultural University, Shenyang, 110161, China
| | - Yan Guo
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xueyong Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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Su T, Wolf S, Han M, Zhao H, Wei H, Greiner S, Rausch T. Reassessment of an Arabidopsis cell wall invertase inhibitor AtCIF1 reveals its role in seed germination and early seedling growth. PLANT MOLECULAR BIOLOGY 2016; 90:137-55. [PMID: 26546341 DOI: 10.1007/s11103-015-0402-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 10/30/2015] [Indexed: 05/19/2023]
Abstract
In higher plants, cell wall invertase (CWI) and vacuolar invertase (VI) are recognized as essential players in sugar metabolism and sugar signaling, thereby affecting source-sink interactions, plant development and responses to environmental cues. CWI and VI expression levels are transcriptionally controlled; however, both enzymes are also subject to posttranslational control by invertase inhibitor proteins. The physiological significances of inhibitor proteins during seed germination and early seedling development are not yet fully understood. Here, we demonstrate that the inhibitor isoform AtCIF1 impacted on seed germination and early seedling growth in Arabidopsis. The primary target of AtCIF1 was shown to be localized to the apoplast after expressing an AtCIF1 YFP-fusion construct in tobacco epidermis and transgenic Arabidopsis root. The analysis of expression patterns showed that AtCWI1 was co-expressed spatiotemporally with AtCIF1 within the early germinating seeds. Seed germination was observed to be accelerated independently of exogenous abscisic acid (ABA) in the AtCIF1 loss-of-function mutant cif1-1. This effect coincided with a drastic increase of CWI activity in cif1-1 mutant seeds by 24 h after the onset of germination, both in vitro and in planta. Accordingly, quantification of sugar content showed that hexose levels were significantly boosted in germinating seeds of the cif1-1 mutant. Further investigation of AtCIF1 overexpressors in Arabidopsis revealed a markedly suppressed CWI activity as well as delayed seed germination. Thus, we conclude that the posttranslational modulation of CWI activity by AtCIF1 helps to orchestrate seed germination and early seedling growth via fine-tuning sucrose hydrolysis and, possibly, sugar signaling.
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Affiliation(s)
- Tao Su
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada.
| | - Sebastian Wolf
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
| | - Mei Han
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada.
| | - Hongbo Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Hongbin Wei
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
| | - Steffen Greiner
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
| | - Thomas Rausch
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
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Medeiros DB, Daloso DM, Fernie AR, Nikoloski Z, Araújo WL. Utilizing systems biology to unravel stomatal function and the hierarchies underpinning its control. PLANT, CELL & ENVIRONMENT 2015; 38:1457-70. [PMID: 25689387 DOI: 10.1111/pce.12517] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 01/20/2015] [Accepted: 01/27/2015] [Indexed: 05/08/2023]
Abstract
Stomata control the concomitant exchange of CO2 and transpiration in land plants. While a constant supply of CO2 is need to maintain the rate of photosynthesis, the accompanying water losses must be tightly regulated to prevent dehydration and undesired metabolic changes. The factors affecting stomatal movement are directly coupled with the cellular networks of guard cells. Although the guard cell has been used as a model for characterization of signaling pathways, several important questions about its functioning remain elusive. Current modeling approaches describe the stomatal conductance in terms of relatively few easy-to-measure variables being unsuitable for in silico design of genetic manipulation strategies. Here, we argue that a system biology approach, combining modeling and high-throughput experiments, may be used to elucidate the mechanisms underlying stomata control and to determine targets for modulation of stomatal responses to environment. In support of our opinion, we review studies demonstrating how high-throughput approaches have provided a systems-view of guard cells. Finally, we emphasize the opportunities and challenges of genome-scale modeling and large-scale data integration for in silico manipulation of guard cell functions to improve crop yields, particularly under stress conditions which are of pertinence both to climate change and water use efficiency.
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Affiliation(s)
- David B Medeiros
- Max-Planck Partner Group, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Danilo M Daloso
- Central Metabolism Group, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Alisdair R Fernie
- Central Metabolism Group, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Zoran Nikoloski
- Systems Biology and Mathematical Modeling Group, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Wagner L Araújo
- Max-Planck Partner Group, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
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Yamburenko MV, Zubo YO, Börner T. Abscisic acid affects transcription of chloroplast genes via protein phosphatase 2C-dependent activation of nuclear genes: repression by guanosine-3'-5'-bisdiphosphate and activation by sigma factor 5. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2015; 82:1030-1041. [PMID: 25976841 DOI: 10.1111/tpj.12876] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/24/2015] [Accepted: 05/01/2015] [Indexed: 05/07/2023]
Abstract
Abscisic acid (ABA) represses the transcriptional activity of chloroplast genes (determined by run-on assays), with the exception of psbD and a few other genes in wild-type Arabidopsis seedlings and mature rosette leaves. Abscisic acid does not influence chloroplast transcription in the mutant lines abi1-1 and abi2-1 with constitutive protein phosphatase 2C (PP2C) activity, suggesting that ABA affects chloroplast gene activity by binding to the pyrabactin resistance (PYR)/PYR1-like or regulatory component of ABA receptor protein family (PYR/PYL/RCAR) and signaling via PP2Cs and sucrose non-fermenting protein-related kinases 2 (SnRK2s). Further we show by quantitative PCR that ABA enhances the transcript levels of RSH2, RSH3, PTF1 and SIG5. RelA/SpoT homolog 2 (RSH2) and RSH3 are known to synthesize guanosine-3'-5'-bisdiphosphate (ppGpp), an inhibitor of the plastid-gene-encoded chloroplast RNA polymerase. We propose, therefore, that ABA leads to an inhibition of chloroplast gene expression via stimulation of ppGpp synthesis. On the other hand, sigma factor 5 (SIG5) and plastid transcription factor 1 (PTF1) are known to be necessary for the transcription of psbD from a specific light- and stress-induced promoter (the blue light responsive promoter, BLRP). We demonstrate that ABA activates the psbD gene by stimulation of transcription initiation at BLRP. Taken together, our data suggest that ABA affects the transcription of chloroplast genes by a PP2C-dependent activation of nuclear genes encoding proteins involved in chloroplast transcription.
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Affiliation(s)
- Maria V Yamburenko
- Institute of Biology-Genetics, Faculty of Life Sciences, Humboldt University, Chausseestrasse 117, 10115, Berlin, Germany
| | - Yan O Zubo
- Institute of Biology-Genetics, Faculty of Life Sciences, Humboldt University, Chausseestrasse 117, 10115, Berlin, Germany
| | - Thomas Börner
- Institute of Biology-Genetics, Faculty of Life Sciences, Humboldt University, Chausseestrasse 117, 10115, Berlin, Germany
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Ma Y, Dai X, Xu Y, Luo W, Zheng X, Zeng D, Pan Y, Lin X, Liu H, Zhang D, Xiao J, Guo X, Xu S, Niu Y, Jin J, Zhang H, Xu X, Li L, Wang W, Qian Q, Ge S, Chong K. COLD1 Confers Chilling Tolerance in Rice. Cell 2015; 160:1209-21. [DOI: 10.1016/j.cell.2015.01.046] [Citation(s) in RCA: 377] [Impact Index Per Article: 41.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 12/31/2014] [Accepted: 01/14/2015] [Indexed: 01/19/2023]
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47
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El-Awady AR, Miles B, Scisci E, Kurago ZB, Palani CD, Arce RM, Waller JL, Genco CA, Slocum C, Manning M, Schoenlein PV, Cutler CW. Porphyromonas gingivalis evasion of autophagy and intracellular killing by human myeloid dendritic cells involves DC-SIGN-TLR2 crosstalk. PLoS Pathog 2015; 10:e1004647. [PMID: 25679217 PMCID: PMC4352937 DOI: 10.1371/journal.ppat.1004647] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/30/2014] [Indexed: 11/18/2022] Open
Abstract
Signaling via pattern recognition receptors (PRRs) expressed on professional antigen presenting cells, such as dendritic cells (DCs), is crucial to the fate of engulfed microbes. Among the many PRRs expressed by DCs are Toll-like receptors (TLRs) and C-type lectins such as DC-SIGN. DC-SIGN is targeted by several major human pathogens for immune-evasion, although its role in intracellular routing of pathogens to autophagosomes is poorly understood. Here we examined the role of DC-SIGN and TLRs in evasion of autophagy and survival of Porphyromonas gingivalis in human monocyte-derived DCs (MoDCs). We employed a panel of P. gingivalis isogenic fimbriae deficient strains with defined defects in Mfa-1 fimbriae, a DC-SIGN ligand, and FimA fimbriae, a TLR2 agonist. Our results show that DC-SIGN dependent uptake of Mfa1+P. gingivalis strains by MoDCs resulted in lower intracellular killing and higher intracellular content of P. gingivalis. Moreover, Mfa1+P. gingivalis was mostly contained within single membrane vesicles, where it survived intracellularly. Survival was decreased by activation of TLR2 and/or autophagy. Mfa1+P. gingivalis strain did not induce significant levels of Rab5, LC3-II, and LAMP1. In contrast, P. gingivalis uptake through a DC-SIGN independent manner was associated with early endosomal routing through Rab5, increased LC3-II and LAMP-1, as well as the formation of double membrane intracellular phagophores, a characteristic feature of autophagy. These results suggest that selective engagement of DC-SIGN by Mfa-1+P. gingivalis promotes evasion of antibacterial autophagy and lysosome fusion, resulting in intracellular persistence in myeloid DCs; however TLR2 activation can overcome autophagy evasion and pathogen persistence in DCs. Among the most successful of human microbes are intracellular pathogens. By entering the intracellular milieu, these pathogens are protected from harsh environmental factors in the host, including the humoral and cellular immune responses. Porphyromonas gingivalis is an opportunistic pathogen that colonizes the oral mucosa and accesses the bloodstream and distant sites such as the blood vessel walls, brain, placenta and other organs. Still unclear is how P. gingivalis traverses from oral mucosa to these distant sites. Dendritic cells are highly migratory antigen presenting cells that “patrol” the blood, skin, mucosa and all the major organ systems. Capture of microbes by dendritic cells activates a tightly regulated series of events, including directed migration towards the secondary lymphoid organs, where processed antigens are ostensibly presented to T cells. Autophagy is now recognized as an integral component of microbial clearance, antigen processing and presentation by dendritic cells. We report here that P. gingivalis is able to subvert autophagic destruction within dendritic cells. This occurs through its glycoprotein fimbriae, called Mfa-1, which targets the C-type lectin DC-SIGN on dendritic cells. The other major fimbriae on P. gingivalis, FimA, targets TLR2, which promotes autophagic destruction of P. gingivalis. We conclude that DC-SIGN-TLR2 crosstalk determines the intracellular fate of this pathogen within dendritic cells, and may have profound implications for the treatment of many chronic diseases involving low-grade infections.
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Affiliation(s)
- Ahmed R. El-Awady
- Department of Periodontics, Georgia Regents University, Augusta, Georgia, United States of America
| | - Brodie Miles
- Department of Medicine, University of Colorado, Aurora, Colorado, United States of America
| | - Elizabeth Scisci
- School of Dental Medicine, Stony Brook University, Stony Brook, New York, United States of America
| | - Zoya B. Kurago
- Department of Oral Health and Diagnostic Sciences, Georgia Regents University, Augusta, Georgia, United States of America
| | - Chithra D. Palani
- Department of Oral Health and Diagnostic Sciences, Georgia Regents University, Augusta, Georgia, United States of America
| | - Roger M. Arce
- Department of Periodontics, Georgia Regents University, Augusta, Georgia, United States of America
| | - Jennifer L. Waller
- Department of Biostatistics and Epidemiology, Georgia Regents University, Augusta, Georgia, United States of America
| | - Caroline A. Genco
- Department of Medicine, Section of Infectious Diseases, Boston University School of Medicine, Boston, Massachusetts, United States of America
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Connie Slocum
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Matthew Manning
- Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, Georgia, United States of America
| | - Patricia V. Schoenlein
- Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, Georgia, United States of America
| | - Christopher W. Cutler
- Department of Periodontics, Georgia Regents University, Augusta, Georgia, United States of America
- * E-mail:
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Transcriptome analysis of Arabidopsis GCR1 mutant reveals its roles in stress, hormones, secondary metabolism and phosphate starvation. PLoS One 2015; 10:e0117819. [PMID: 25668726 PMCID: PMC4357605 DOI: 10.1371/journal.pone.0117819] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 12/30/2014] [Indexed: 12/19/2022] Open
Abstract
The controversy over the existence or the need for G-protein coupled receptors (GPCRs) in plant G-protein signalling has overshadowed a more fundamental quest for the role of AtGCR1, the most studied and often considered the best candidate for GPCR in plants. Our whole transcriptome microarray analysis of the GCR1-knock-out mutant (gcr1-5) in Arabidopsis thaliana revealed 350 differentially expressed genes spanning all chromosomes. Many of them were hitherto unknown in the context of GCR1 or G-protein signalling, such as in phosphate starvation, storage compound and fatty acid biosynthesis, cell fate, etc. We also found some GCR1-responsive genes/processes that are reported to be regulated by heterotrimeric G-proteins, such as biotic and abiotic stress, hormone response and secondary metabolism. Thus, GCR1 could have G-protein-mediated as well as independent roles and regardless of whether it works as a GPCR, further analysis of the organism-wide role of GCR1 has a significance of its own.
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49
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Zhang XL, Jiang L, Xin Q, Liu Y, Tan JX, Chen ZZ. Structural basis and functions of abscisic acid receptors PYLs. FRONTIERS IN PLANT SCIENCE 2015; 6:88. [PMID: 25745428 PMCID: PMC4333806 DOI: 10.3389/fpls.2015.00088] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 02/02/2015] [Indexed: 05/17/2023]
Abstract
Abscisic acid (ABA) plays a key role in many developmental processes and responses to adaptive stresses in plants. Recently, a new family of nucleocytoplasmic PYR/PYL/RCAR (PYLs) has been identified as bona fide ABA receptors. PYLs together with protein phosphatases type-2C (PP2Cs), Snf1 (Sucrose-non-fermentation 1)-related kinases subfamily 2 (SnRK2s) and downstream substrates constitute the core ABA signaling network. Generally, PP2Cs inactivate SnRK2s kinases by physical interaction and direct dephosphorylation. Upon ABA binding, PYLs change their conformations and then contact and inhibit PP2Cs, thus activating SnRK2s. Here, we reviewed the recent progress in research regarding the structures of the core signaling pathways of ABA, including the (+)-ABA, (-)-ABA and ABA analogs pyrabactin as well as 6AS perception by PYLs, SnRK2s mimicking PYLs in binding PP2Cs. PYLs inhibited PP2Cs in both the presence and absence of ABA and activated SnRK2s. The present review elucidates multiple ABA signal perception and transduction by PYLs, which might shed light on how to design small chemical compounds for improving plant performance in the future.
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Affiliation(s)
- Xing L. Zhang
- Department of Pediatrics, Affiliated Hospital of Guangdong Medical CollegeZhanjiang, China
- *Correspondence: Xing L. Zhang, Department of Pediatrics, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China e-mail:
| | - Lun Jiang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural UniversityBeijing, China
| | - Qi Xin
- National Center for Nanoscience and TechnologyBeijing, China
| | - Yang Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural UniversityBeijing, China
| | - Jian X. Tan
- Department of Pediatrics, Affiliated Hospital of Guangdong Medical CollegeZhanjiang, China
| | - Zhong Z. Chen
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural UniversityBeijing, China
- Zhong Z. Chen, State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China e-mail:
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50
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Hok S, Allasia V, Andrio E, Naessens E, Ribes E, Panabières F, Attard A, Ris N, Clément M, Barlet X, Marco Y, Grill E, Eichmann R, Weis C, Hückelhoven R, Ammon A, Ludwig-Müller J, Voll LM, Keller H. The receptor kinase IMPAIRED OOMYCETE SUSCEPTIBILITY1 attenuates abscisic acid responses in Arabidopsis. PLANT PHYSIOLOGY 2014; 166:1506-18. [PMID: 25274985 PMCID: PMC4226379 DOI: 10.1104/pp.114.248518] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 09/30/2014] [Indexed: 05/18/2023]
Abstract
In plants, membrane-bound receptor kinases are essential for developmental processes, immune responses to pathogens and the establishment of symbiosis. We previously identified the Arabidopsis (Arabidopsis thaliana) receptor kinase IMPAIRED OOMYCETE SUSCEPTIBILITY1 (IOS1) as required for successful infection with the downy mildew pathogen Hyaloperonospora arabidopsidis. We report here that IOS1 is also required for full susceptibility of Arabidopsis to unrelated (hemi)biotrophic filamentous oomycete and fungal pathogens. Impaired susceptibility in the absence of IOS1 appeared to be independent of plant defense mechanism. Instead, we found that ios1-1 plants were hypersensitive to the plant hormone abscisic acid (ABA), displaying enhanced ABA-mediated inhibition of seed germination, root elongation, and stomatal opening. These findings suggest that IOS1 negatively regulates ABA signaling in Arabidopsis. The expression of ABA-sensitive COLD REGULATED and RESISTANCE TO DESICCATION genes was diminished in Arabidopsis during infection. This effect on ABA signaling was alleviated in the ios1-1 mutant background. Accordingly, ABA-insensitive and ABA-hypersensitive mutants were more susceptible and resistant to oomycete infection, respectively, showing that the intensity of ABA signaling affects the outcome of downy mildew disease. Taken together, our findings suggest that filamentous (hemi)biotrophs attenuate ABA signaling in Arabidopsis during the infection process and that IOS1 participates in this pathogen-mediated reprogramming of the host.
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Affiliation(s)
- Sophie Hok
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Valérie Allasia
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Emilie Andrio
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Elodie Naessens
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Elsa Ribes
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Franck Panabières
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Agnès Attard
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Nicolas Ris
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Mathilde Clément
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Xavier Barlet
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Yves Marco
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Erwin Grill
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Ruth Eichmann
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Corina Weis
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Ralph Hückelhoven
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Alexandra Ammon
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Jutta Ludwig-Müller
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Lars M Voll
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
| | - Harald Keller
- Institut Sophia Agrobiotech, Unité Mixte de Recherche 1355 Institut National de la Recherche Agronomique-Centre National de la Recherche Scientifique-Université Nice-Sophia Antipolis, 06903 Sophia Antipolis, France (S.H., V.A., E.A., E.N., E.R., F.P., Ag.A., N.R., H.K.);Unité Mixte de Recherche 6191 Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Développement des Plantes, Université d'Aix-Marseille, 13108 Saint-Paul-lez-Durance, France (M.C.);Laboratoire des Interactions Plantes Microorganismes, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Institut National de la Recherche Agronomique 2594/441, 31326 Castanet-Tolosan, France (X.B., Y.M.);Technische Universität München, Lehrstuhl für Botanik (E.G.) and Lehrstuhl für Phytopathologie (R.E., C.W., R.H.), 85350 Freising-Weihenstephan, Germany;Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany (J.L.-M.); andFriedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Biochemie, 91058 Erlangen, Germany (Al.A., L.M.V.)
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