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Chevalier Q, Huchelmann A, Debié P, Mercier P, Hartmann M, Vonthron-Sénécheau C, Bach TJ, Schaller H, Hemmerlin A. Methyl-Jasmonate Functions as a Molecular Switch Promoting Cross-Talk between Pathways for the Biosynthesis of Isoprenoid Backbones Used to Modify Proteins in Plants. PLANTS (BASEL, SWITZERLAND) 2024; 13:1110. [PMID: 38674519 PMCID: PMC11055089 DOI: 10.3390/plants13081110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/03/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
In plants, the plastidial mevalonate (MVA)-independent pathway is required for the modification with geranylgeranyl groups of CaaL-motif proteins, which are substrates of protein geranylgeranyltransferase type-I (PGGT-I). As a consequence, fosmidomycin, a specific inhibitor of 1-deoxy-d-xylulose (DX)-5 phosphate reductoisomerase/DXR, the second enzyme in this so-called methylerythritol phosphate (MEP) pathway, also acts as an effective inhibitor of protein prenylation. This can be visualized in plant cells by confocal microscopy by expressing GFP-CaM-CVIL, a prenylation sensor protein. After treatment with fosmidomycin, the plasma membrane localization of this GFP-based sensor is altered, and a nuclear distribution of fluorescence is observed instead. In tobacco cells, a visual screen of conditions allowing membrane localization in the presence of fosmidomycin identified jasmonic acid methyl esther (MeJA) as a chemical capable of gradually overcoming inhibition. Using Arabidopsis protein prenyltransferase loss-of-function mutant lines expressing GFP-CaM-CVIL proteins, we demonstrated that in the presence of MeJA, protein farnesyltransferase (PFT) can modify the GFP-CaM-CVIL sensor, a substrate the enzyme does not recognize under standard conditions. Similar to MeJA, farnesol and MVA also alter the protein substrate specificity of PFT, whereas DX and geranylgeraniol have limited or no effect. Our data suggest that MeJA adjusts the protein substrate specificity of PFT by promoting a metabolic cross-talk directing the origin of the prenyl group used to modify the protein. MVA, or an MVA-derived metabolite, appears to be a key metabolic intermediate for this change in substrate specificity.
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Affiliation(s)
- Quentin Chevalier
- Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire des Plantes (IBMP), Université de Strasbourg, 12 rue du Général Zimmer, F-67084 Strasbourg, France; (Q.C.); (P.D.); (P.M.); (M.H.); (T.J.B.); (H.S.)
- Centre National de la Recherche Scientifique, Laboratoire d’Innovation Thérapeutique, Université de Strasbourg, CEDEX, F-67401 Illkirch, France;
| | - Alexandre Huchelmann
- Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire des Plantes (IBMP), Université de Strasbourg, 12 rue du Général Zimmer, F-67084 Strasbourg, France; (Q.C.); (P.D.); (P.M.); (M.H.); (T.J.B.); (H.S.)
| | - Pauline Debié
- Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire des Plantes (IBMP), Université de Strasbourg, 12 rue du Général Zimmer, F-67084 Strasbourg, France; (Q.C.); (P.D.); (P.M.); (M.H.); (T.J.B.); (H.S.)
| | - Pierre Mercier
- Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire des Plantes (IBMP), Université de Strasbourg, 12 rue du Général Zimmer, F-67084 Strasbourg, France; (Q.C.); (P.D.); (P.M.); (M.H.); (T.J.B.); (H.S.)
| | - Michael Hartmann
- Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire des Plantes (IBMP), Université de Strasbourg, 12 rue du Général Zimmer, F-67084 Strasbourg, France; (Q.C.); (P.D.); (P.M.); (M.H.); (T.J.B.); (H.S.)
| | - Catherine Vonthron-Sénécheau
- Centre National de la Recherche Scientifique, Laboratoire d’Innovation Thérapeutique, Université de Strasbourg, CEDEX, F-67401 Illkirch, France;
| | - Thomas J. Bach
- Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire des Plantes (IBMP), Université de Strasbourg, 12 rue du Général Zimmer, F-67084 Strasbourg, France; (Q.C.); (P.D.); (P.M.); (M.H.); (T.J.B.); (H.S.)
| | - Hubert Schaller
- Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire des Plantes (IBMP), Université de Strasbourg, 12 rue du Général Zimmer, F-67084 Strasbourg, France; (Q.C.); (P.D.); (P.M.); (M.H.); (T.J.B.); (H.S.)
| | - Andréa Hemmerlin
- Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire des Plantes (IBMP), Université de Strasbourg, 12 rue du Général Zimmer, F-67084 Strasbourg, France; (Q.C.); (P.D.); (P.M.); (M.H.); (T.J.B.); (H.S.)
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Wu JR, Zohra R, Duong NKT, Yeh CH, Lu CA, Wu SJ. A plant protein farnesylation system in prokaryotic cells reveals Arabidopsis AtJ3 produced and farnesylated in E. coli maintains its function of protecting proteins from heat inactivation. PLANT METHODS 2023; 19:113. [PMID: 37884965 PMCID: PMC10604809 DOI: 10.1186/s13007-023-01087-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023]
Abstract
BACKGROUND Protein farnesylation involves the addition of a 15-carbon polyunsaturated farnesyl group to proteins whose C-terminus ends with a CaaX motif. This post-translational protein modification is catalyzed by a heterodimeric protein, i.e., farnesyltransferase (PFT), which is composed of an α and a β subunit. Protein farnesylation in plants is of great interest because of its important roles in the regulation of plant development, responses to environmental stresses, and defense against pathogens. The methods traditionally used to verify whether a protein is farnesylated often require a specific antibody and involve isotope labeling, a tedious and time-consuming process that poses hazardous risks. RESULTS Since protein farnesylation does not occur in prokaryotic cells, we co-expressed a known PFT substrate (i.e., AtJ3) and both the α and β subunits of Arabidopsis PFT in E. coli in this study. Farnesylation of AtJ3 was detected using electrophoretic mobility using SDS-PAGE and confirmed using mass spectrometry. AtJ3 is a member of the heat shock protein 40 family and interacts with Arabidopsis HSP70 to protect plant proteins from heat-stress-induced denaturation. A luciferase-based protein denaturation assay demonstrated that farnesylated AtJ3 isolated from E. coli maintained this ability. Interestingly, farnesylated AtJ3 interacted with E. coli HSP70 as well and enhanced the thermotolerance of E. coli. Meanwhile, AtFP3, another known PFT substrate, was farnesylated when co-expressed with AtPFTα and AtPFTβ in E. coli. Moreover, using the same strategy to co-express rice PFT α and β subunit and a potential PFT target, it was confirmed that OsDjA4, a homolog of AtJ3, was farnesylated. CONCLUSION We developed a protein farnesylation system for E. coli and demonstrated its applicability and practicality in producing functional farnesylated proteins from both mono- and dicotyledonous plants.
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Affiliation(s)
- Jia-Rong Wu
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan, 32001, Taiwan
| | - Rida Zohra
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan, 32001, Taiwan
| | - Ngoc Kieu Thi Duong
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan, 32001, Taiwan
| | - Ching-Hui Yeh
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan, 32001, Taiwan
| | - Chung-An Lu
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan, 32001, Taiwan.
| | - Shaw-Jye Wu
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan, 32001, Taiwan.
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Wang Z, Zhang H, Li Y, Chen Y, Tang X, Zhao J, Yu F, Wang H, Xiao J, Liu J, Zhang X, Sun L, Xie Q, Wang X. Isoprenylation modification is required for HIPP1-mediated powdery mildew resistance in wheat. PLANT, CELL & ENVIRONMENT 2023; 46:288-305. [PMID: 36319595 DOI: 10.1111/pce.14479] [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: 05/28/2022] [Revised: 08/09/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Powdery mildew (Pm), caused by Blumeria graminis f.sp. tritici (Bgt), is one of the most important wheat diseases. Heavy-metal-associated isoprenylated plant protein (HIPP1) has been proved playing important roles in response to biotic and a biotic stress. In present study, we proved HIPP1-V from Haynalidia villosa is a positive regulator in Pm resistance. HIPP1-V was rapidly induced by Bgt. Transiently or stably heterologous overexpressing HIPP1-V in wheat suppressed the haustorium formation and enhanced Pm resistance. HIPP1-V isoprenylation was critical for plasma membrane (PM) localization, interaction with E3-ligase CMPG1-V and function in Pm resistance. Bgt infection recruited the isoprenylated HIPP1-V and CMPG1s on PM; blocking the HIPP1 isoprenylation reduced such recruitment and compromised the resistance of OE-CMPG1-V and OE-HIPP1-V. Overexpressing HIPP1-VC148G could not enhance Pm resistance. These indicated the Pm resistance was dependent on HIPP1-V's isoprenylation. DGEs related to the ROS and SA pathways were remarkably enriched in OE-HIPP1-V, revealing their involvement in Pm resistance. Our results provide evidence on the important role of protein isoprenylation in plant defense.
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Affiliation(s)
- Zongkuan Wang
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Heng Zhang
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Yingbo Li
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yiming Chen
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Xiong Tang
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Jia Zhao
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Feifei Yu
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Haiyan Wang
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Jin Xiao
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Jia Liu
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Xu Zhang
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Li Sun
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
| | - Qi Xie
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Xiue Wang
- State Key Lab of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, College of Agriculture, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, China
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Peng P, Li R, Chen ZH, Wang Y. Stomata at the crossroad of molecular interaction between biotic and abiotic stress responses in plants. FRONTIERS IN PLANT SCIENCE 2022; 13:1031891. [PMID: 36311113 PMCID: PMC9614343 DOI: 10.3389/fpls.2022.1031891] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Increasing global food production is threatened by harsh environmental conditions along with biotic stresses, requiring massive new research into integrated stress resistance in plants. Stomata play a pivotal role in response to many biotic and abiotic stresses, but their orchestrated interactions at the molecular, physiological, and biochemical levels were less investigated. Here, we reviewed the influence of drought, pathogen, and insect herbivory on stomata to provide a comprehensive overview in the context of stomatal regulation. We also summarized the molecular mechanisms of stomatal response triggered by these stresses. To further investigate the effect of stomata-herbivore interaction at a transcriptional level, integrated transcriptome studies from different plant species attacked by different pests revealed evidence of the crosstalk between abiotic and biotic stress. Comprehensive understanding of the involvement of stomata in some plant-herbivore interactions may be an essential step towards herbivores' manipulation of plants, which provides insights for the development of integrated pest management strategies. Moreover, we proposed that stomata can function as important modulators of plant response to stress combination, representing an exciting frontier of plant science with a broad and precise view of plant biotic interactions.
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Affiliation(s)
- Pengshuai Peng
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Rui Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zhong-Hua Chen
- School of Science, Western Sydney University, Penrith, NSW, Australia
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Yuanyuan Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
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Hannachi S, Signore A, Adnan M, Mechi L. Single and Associated Effects of Drought and Heat Stresses on Physiological, Biochemical and Antioxidant Machinery of Four Eggplant Cultivars. PLANTS (BASEL, SWITZERLAND) 2022; 11:2404. [PMID: 36145805 PMCID: PMC9502621 DOI: 10.3390/plants11182404] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/25/2022] [Accepted: 08/30/2022] [Indexed: 06/16/2023]
Abstract
The impact of heat and drought stresses, either individually or combined, on physiological and biochemical parameters of four eggplant varieties (Solanum melongena L.) was investigated. The results showed that associated stress generated the highest increment in proline content, MDA concentration, and H2O2 accumulation and generated the lowest increment in RWC. In addition, ‘Bonica’ and ‘Galine’ exhibited higher starch accumulation and lower electrolyte leakage (EL) under combined stress. Moreover, drought and heat stresses applied individually contributed to a substantial decline in Chla, Chlb, total Chl, Chla/b, and carotenoids (p > 0.05) in ‘Adriatica’ and ‘Black Beauty’. The decreasing level of pigments was more substantial under associated drought and heat stresses. The simultaneous application of drought and heat stresses reduced PSII efficiency (Fv/Fm), quantum yield (ΦPSII), and photochemical efficiency (qp) and boosted non-photochemical quenching (NPQ) levels. However, the change recorded in the chlorophyll fluorescence parameters was less pronounced in ‘Bonica’ and ‘Galine’. In addition, the gas exchange parameters, transpiration rate (E), CO2 assimilation rate (A), and net photosynthesis (Pn) were decreased in all varieties under all stress conditions. However, the reduction was more pronounced in ‘Adriatica’ and ‘Black Beauty’. Under associated stress, antioxidant enzymes, SOD, APX, CAT, and GR exhibited a significant increment in all eggplant cultivars. However, the rising was more elevated in ‘Bonica’ and ‘Galine’ (higher than threefold increase) than in ‘Adriatica’ and ‘Black Beauty’ (less than twofold increase). Furthermore, ‘Bonica’ and ‘Galine’ displayed higher non-enzyme scavenging activity (AsA and GSH) compared to ‘Adriatica’ and ‘Black Beauty’ under associated stress. Under stressful conditions, nutrient uptake was affected in all eggplant cultivars; however, the root, stem, and leaf N, P, and K contents, in ‘Adriatica’ and ‘Black Beauty’ were lower than in ‘Bonica’ and ‘Galine’, thereby showing less capacity in accumulating nutrients. The coexistence of drought and heat stresses caused more damage on eggplant varieties than the single appearance of drought or heat stress separately. ‘Bonica’ and ‘Galine’ showed better distinguished performance compared to ‘Adriatica’ and ‘Black Beauty’. The superiority of ‘Bonica’ and ‘Galine’ in terms of tolerance to heat and drought stresses was induced by more effective antioxidant scavenging potential, enhanced osmolyte piling-up, and prominent ability in keeping higher photosynthetic efficiency and nutrient equilibrium compared with ‘Adriatica’ and ‘Black Beauty’.
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Affiliation(s)
- Sami Hannachi
- Department of Biology, College of Science, University of Hail, P.O. Box 2440, Ha’il 81451, Saudi Arabia
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links, 653, 9000 Ghent, Belgium
| | - Angelo Signore
- Department of Agricultural and Environmental Science, University of Bari Aldo Moro, Via Amendola 165/A, 70126 Bari, Italy
| | - Mohd Adnan
- Department of Biology, College of Science, University of Hail, P.O. Box 2440, Ha’il 81451, Saudi Arabia
| | - Lassaad Mechi
- Department of Chemistry, College of Science, University of Hail, P.O. Box 2440, Ha’il 81451, Saudi Arabia
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Naz R, Gul F, Zahoor S, Nosheen A, Yasmin H, Keyani R, Shahid M, Hassan MN, Siddiqui MH, Batool S, Anwar Z, Ali N, Roberts TH. Interactive effects of hydrogen sulphide and silicon enhance drought and heat tolerance by modulating hormones, antioxidant defence enzymes and redox status in barley (Hordeum vulgare L.). PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:684-696. [PMID: 34879172 DOI: 10.1111/plb.13374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 11/08/2021] [Indexed: 05/28/2023]
Abstract
Recent changes in climate have reduced crop productivity throughout much of the world. Drought and heat stress, particularly in arid and semi-arid regions, have seriously affected barley production. This study explored the separate and interactive effects of silicon (Si) and hydrogen sulphide (H2 S) on plant growth and mitigation of the adverse effects of heat stress (DS) and drought stress (HS) in a barley pot experiment. The impacts of simultaneous DS + HS were more severe than individual stresses due to increased ROS production, malondialdehyde (MDA) content and higher electrolyte leakage (EL), thereby leading to reduced water, protein and photosynthetic pigment content. Exogenously applied Si and H2 S alleviated the DS-, HS- and DS + HS-induced effects on barley by reducing ROS production, MDA and EL. A single application of H2 S or Si + H2 S increased plant biomass under all stress conditions, which can be ascribed to higher Si accumulation in barley shoots. A single application of Si or H2 S significantly increased plant biomass. However, Si + H2 S was the most effective treatment for metabolite accumulation and elevating activity of antioxidant enzymes to prevent toxicity from oxidative stress. This treatment also modulated osmolyte content, enhanced antioxidant activity and regulated the stress signalling-related endogenous hormones, abscisic acid (ABA) and indole acetic acid (IAA). Exogenous treatments regulated endogenous H2 S and Si and resulted in higher tolerance to individual and combined drought and heat stress in barley.
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Affiliation(s)
- R Naz
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - F Gul
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - S Zahoor
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - A Nosheen
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - H Yasmin
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - R Keyani
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - M Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - M N Hassan
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - M H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - S Batool
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Z Anwar
- Department of Computer Science, COMSATS University Islamabad, Islamabad, Pakistan
| | - N Ali
- Department of Computer Science, COMSATS University Islamabad, Islamabad, Pakistan
| | - T H Roberts
- School of Life and Environmental Sciences, University of Sydney, Sydney, Australia
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Yousaf MI, Riaz MW, Jiang Y, Yasir M, Aslam MZ, Hussain S, Sajid Shah SA, Shehzad A, Riasat G, Manzoor MA, Akhtar I. Concurrent Effects of Drought and Heat Stresses on Physio-Chemical Attributes, Antioxidant Status and Kernel Quality Traits in Maize ( Zea mays L.) Hybrids. FRONTIERS IN PLANT SCIENCE 2022; 13:898823. [PMID: 35646037 PMCID: PMC9131034 DOI: 10.3389/fpls.2022.898823] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/14/2022] [Indexed: 06/09/2023]
Abstract
Maize is one of the most important field crops considering its utilization as food, feed, fodder, and biofuel. However, the sustainability of its production is under serious threat of heat and drought stresses, as these stresses could hamper crop growth, causing a significant loss to kernel yield. The research study was carried out at Maize and Millets Research Institute, Yusafwala-Sahiwal for two consecutive spring seasons (2019-20 and 2020-21) under a split-split plot design. The current study explained the individual and combined effects of drought and heat stresses on morphology, phenology, physiology, reactive oxygen species (stocktickerROS), antioxidant status, and kernel quality traits in four indigenous (YH-5482, YH-5427, YH-5404, and YH-1898) and one multinational maize hybrid (P-1543). Stress treatments, i.e., drought, heat, and drought+heat, were applied ten days before tasseling and lasted for 21 days. The results revealed the incidence of oxidative stress due to overproduction of Hydrogen peroxide; H2O2 (control: 1.9, heat+drought: 5.8), and Malondialdehyde; stocktickerMDA (control: 116.5, heat+drought: 193), leading to reduced photosynthetic ability (control: 31.8, heat:16.5), alterations in plant morphology, decrease in kernel yield (control: 10865 kg ha-1, heat+drought: 5564 kg ha-1), and quality-related traits. Although all the stress treatments induced the accumulation of stress-responsive osmolytes and enzymatic antioxidants to cope with the negative impact of osmotic stress, the effect of combined drought + heat stress was much higher. The overall performance of indigenous maize hybrid YH-5427 was much more promising than the other hybrids, attributed to its better tolerance of drought and heat stresses. Such stress tolerance was attributed to maintaining photosynthetic activity, a potent antioxidant and osmolyte-based defense mechanisms, and minimum reductions in yield-related traits, which assured the maximum kernel yield under all stress treatments.
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Affiliation(s)
- Muhammad Irfan Yousaf
- Cotton Research Station (CRS), Bahawalpur, Pakistan
- Maize and Millets Research Institute (MMRI), Sahiwal, Pakistan
| | - Muhammad Waheed Riaz
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
| | - Yurong Jiang
- College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
| | - Muhammad Yasir
- College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
| | | | | | | | - Aamar Shehzad
- Maize Research Station, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Gulfam Riasat
- Maize Research Station, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | | | - Imran Akhtar
- Regional Agricultural Research Institute, Bahawalpur, Pakistan
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Maitra S, Brestic M, Bhadra P, Shankar T, Praharaj S, Palai JB, Shah MMR, Barek V, Ondrisik P, Skalický M, Hossain A. Bioinoculants-Natural Biological Resources for Sustainable Plant Production. Microorganisms 2021; 10:51. [PMID: 35056500 PMCID: PMC8780112 DOI: 10.3390/microorganisms10010051] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 11/22/2022] Open
Abstract
Agricultural sustainability is of foremost importance for maintaining high food production. Irresponsible resource use not only negatively affects agroecology, but also reduces the economic profitability of the production system. Among different resources, soil is one of the most vital resources of agriculture. Soil fertility is the key to achieve high crop productivity. Maintaining soil fertility and soil health requires conscious management effort to avoid excessive nutrient loss, sustain organic carbon content, and minimize soil contamination. Though the use of chemical fertilizers have successfully improved crop production, its integration with organic manures and other bioinoculants helps in improving nutrient use efficiency, improves soil health and to some extent ameliorates some of the constraints associated with excessive fertilizer application. In addition to nutrient supplementation, bioinoculants have other beneficial effects such as plant growth-promoting activity, nutrient mobilization and solubilization, soil decontamination and/or detoxification, etc. During the present time, high energy based chemical inputs also caused havoc to agriculture because of the ill effects of global warming and climate change. Under the consequences of climate change, the use of bioinputs may be considered as a suitable mitigation option. Bioinoculants, as a concept, is not something new to agricultural science, however; it is one of the areas where consistent innovations have been made. Understanding the role of bioinoculants, the scope of their use, and analysing their performance in various environments are key to the successful adaptation of this technology in agriculture.
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Affiliation(s)
- Sagar Maitra
- Department of Agronomy, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakheundi 761 211, India; (S.M.); (T.S.); (S.P.); (J.B.P.)
| | - Marian Brestic
- Department of Plant Physiology, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 01 Nitra, Slovakia;
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic;
| | - Preetha Bhadra
- Department of Biotechnology, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakheundi 761 211, India;
| | - Tanmoy Shankar
- Department of Agronomy, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakheundi 761 211, India; (S.M.); (T.S.); (S.P.); (J.B.P.)
| | - Subhashisa Praharaj
- Department of Agronomy, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakheundi 761 211, India; (S.M.); (T.S.); (S.P.); (J.B.P.)
| | - Jnana Bharati Palai
- Department of Agronomy, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakheundi 761 211, India; (S.M.); (T.S.); (S.P.); (J.B.P.)
| | | | - Viliam Barek
- Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 01 Nitra, Slovakia;
| | - Peter Ondrisik
- Department of Plant Physiology, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 01 Nitra, Slovakia;
| | - Milan Skalický
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic;
| | - Akbar Hossain
- Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh;
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9
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Tak H, Negi S, Ganapathi TR. The 5'-upstream region of WRKY18 transcription factor from banana is a stress-inducible promoter with strong expression in guard cells. PHYSIOLOGIA PLANTARUM 2021; 173:1335-1350. [PMID: 33421142 DOI: 10.1111/ppl.13326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/07/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Increasing crop productivity in an ever-changing environmental scenario is a major challenge for maintaining the food supply worldwide. Generation of crops having broad-spectrum pathogen resistance with the ability to cope with water scarcity is the only solution to feed the expanding world population. Stomatal closure has implications on pathogen colonization and drought tolerance. Recent studies have provided novel insights into networks involved in stomatal closure which is being used in biotechnological applications for improving crop endurance. Despite that genetic engineering of stomata requires guard cell preferred or specific regulatory regions to avoid undesirable side effects. In the present study, we describe the 5'-upstream regulatory region of the WRKY18 transcription factor of banana and functionally analyzed its stress meditated activation and strong guard cell preferred activity. Expression of MusaWRKY18 is augmented in leaves of banana cultivars Karibale Monthan, Rasthali and Grand Nain under multiple stress conditions suggesting its role in stress responses of banana plants. Transgenic tobacco lines harboring PMusaWRKY18 -β-D-glucuronidase (GUS) were regenerated and GUS staining demonstrated substantial GUS expression in guard cells which corroborates with multiple Dof1 binding cis-elements in PMusaWRKY18 . Fluorescent β-galactosidase assay demonstrated the stress-mediated strong induction profiles of PMusaWRKY18 at different time points in transgenic tobacco lines exposed to drought, high-salinity, cold, and applications of abscisic acid, salicylic acid, methyl jasmonate, and ethephon. This study sheds novel insights into guard cell preferred expression of WRKY genes under stress and confirm the utility of PMusaWRKY18 for exploring guard cell functions and guard cell engineering.
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Affiliation(s)
- Himanshu Tak
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Sanjana Negi
- Department of Biotechnology, University of Mumbai, Mumbai, India
| | - Thumballi R Ganapathi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
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10
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Jiang L, Yoshida T, Stiegert S, Jing Y, Alseekh S, Lenhard M, Pérez-Alfocea F, Fernie AR. Multi-omics approach reveals the contribution of KLU to leaf longevity and drought tolerance. PLANT PHYSIOLOGY 2021; 185:352-368. [PMID: 33721894 PMCID: PMC8133585 DOI: 10.1093/plphys/kiaa034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 11/05/2020] [Indexed: 05/05/2023]
Abstract
KLU, encoded by a cytochrome P450 CYP78A family gene, generates an important-albeit unknown-mobile signal that is distinct from the classical phytohormones. Multiple lines of evidence suggest that KLU/KLU-dependent signaling functions in several vital developmental programs, including leaf initiation, leaf/floral organ growth, and megasporocyte cell fate. However, the interactions between KLU/KLU-dependent signaling and the other classical phytohormones, as well as how KLU influences plant physiological responses, remain poorly understood. Here, we applied in-depth, multi-omics analysis to monitor transcriptome and metabolome dynamics in klu-mutant and KLU-overexpressing Arabidopsis plants. By integrating transcriptome sequencing data and primary metabolite profiling alongside phytohormone measurements, our results showed that cytokinin signaling, with its well-established function in delaying leaf senescence, was activated in KLU-overexpressing plants. Consistently, KLU-overexpressing plants exhibited significantly delayed leaf senescence and increased leaf longevity, whereas the klu-mutant plants showed early leaf senescence. In addition, proline biosynthesis and catabolism were enhanced following KLU overexpression owing to increased expression of genes associated with proline metabolism. Furthermore, KLU-overexpressing plants showed enhanced drought-stress tolerance and reduced water loss. Collectively, our work illustrates a role for KLU in positively regulating leaf longevity and drought tolerance by synergistically activating cytokinin signaling and promoting proline metabolism. These data promote KLU as a potential ideal genetic target to improve plant fitness.
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Affiliation(s)
- Liang Jiang
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Takuya Yoshida
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Sofia Stiegert
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Genetics, University of Potsdam, 14469 Potsdam, Germany
| | - Yue Jing
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Saleh Alseekh
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Michael Lenhard
- Department of Genetics, University of Potsdam, 14469 Potsdam, Germany
| | - Francisco Pérez-Alfocea
- Department of Plant Nutrition, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
| | - Alisdair R Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Genetics, University of Potsdam, 14469 Potsdam, Germany
- Author for communication:
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11
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Vergès V, Dutilleul C, Godin B, Collet B, Lecureuil A, Rajjou L, Guimaraes C, Pinault M, Chevalier S, Giglioli-Guivarc’h N, Ducos E. Protein Farnesylation Takes Part in Arabidopsis Seed Development. FRONTIERS IN PLANT SCIENCE 2021; 12:620325. [PMID: 33584774 PMCID: PMC7876099 DOI: 10.3389/fpls.2021.620325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/08/2021] [Indexed: 05/25/2023]
Abstract
Protein farnesylation is a post-translational modification regulated by the ERA1 (Enhanced Response to ABA 1) gene encoding the β-subunit of the protein farnesyltransferase in Arabidopsis. The era1 mutants have been described for over two decades and exhibit severe pleiotropic phenotypes, affecting vegetative and flower development. We further investigated the development and quality of era1 seeds. While the era1 ovary contains numerous ovules, the plant produces fewer seeds but larger and heavier, with higher protein contents and a modified fatty acid distribution. Furthermore, era1 pollen grains show lower germination rates and, at flower opening, the pistils are immature and the ovules require one additional day to complete the embryo sac. Hand pollinated flowers confirmed that pollination is a major obstacle to era1 seed phenotypes, and a near wild-type seed morphology was thus restored. Still, era1 seeds conserved peculiar storage protein contents and altered fatty acid distributions. The multiplicity of era1 phenotypes reflects the diversity of proteins targeted by the farnesyltransferase. Our work highlights the involvement of protein farnesylation in seed development and in the control of traits of agronomic interest.
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Affiliation(s)
- Valentin Vergès
- Biomolécules et Biotechnologies Végétales, Faculté de Pharmacie, Université de Tours, Tours, France
| | - Christelle Dutilleul
- Biomolécules et Biotechnologies Végétales, Faculté de Pharmacie, Université de Tours, Tours, France
| | - Béatrice Godin
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Boris Collet
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Alain Lecureuil
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Loïc Rajjou
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Cyrille Guimaraes
- Nutrition, Croissance et Cancer, INSERM UMR 1069, Université de Tours, Tours, France
| | - Michelle Pinault
- Nutrition, Croissance et Cancer, INSERM UMR 1069, Université de Tours, Tours, France
| | - Stéphane Chevalier
- Nutrition, Croissance et Cancer, INSERM UMR 1069, Université de Tours, Tours, France
| | | | - Eric Ducos
- Biomolécules et Biotechnologies Végétales, Faculté de Pharmacie, Université de Tours, Tours, France
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12
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Gao J, Ni X, Li H, Hayat F, Shi T, Gao Z. miR169 and PmRGL2 synergistically regulate the NF-Y complex to activate dormancy release in Japanese apricot (Prunus mume Sieb. et Zucc.). PLANT MOLECULAR BIOLOGY 2021; 105:83-97. [PMID: 32926248 DOI: 10.1007/s11103-020-01070-3] [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: 03/25/2020] [Revised: 08/28/2020] [Accepted: 09/06/2020] [Indexed: 06/11/2023]
Abstract
This study is the first to demonstrate that GA4-induced dormancy release is associated with the NF-Y complex, which interacts with gibberellin inhibitor RGL2 in Japanese apricot. Seasonal dormancy is not only vital for the survival in cold winter but also affects flowering of temperate fruit trees and the dormancy release depends on the accumulation of the cold temperatures (Chilling requirement-CR). To understand the mechanism of dormancy release in deciduous fruit crops, we compared miRNA sequencing data during the transition stage from paradormancy to dormancy release in the Japanese apricot and found that the miR169 family showed significant differentially up-regulated expression during dormancy induction and was down-regulated during the dormancy release periods. The 5' RACE assay and RT-qPCR validated its target gene NUCLEAR FACTOR-Y subunit A (NF-YA), which exhibited the opposite expression pattern. Further study showed that exogenous GA4 could inhibit the expression of the gibberellic acid (GA) signal transduction suppressor PmRGL2 (RGA-LIKE 2) and promote the expression of NF-Y. Moreover, the interaction between the NF-Y family and GA inhibitor PmRGL2 was verified by the yeast-two-hybrid (Y2H) system and a bimolecular fluorescence complementarity (BiFC) experiment. These results suggest that synergistic regulation of the NF-Y and PmRGL2 complex leads to the activation of dormancy release induced by GA4. These findings will help to elucidate the functional and regulatory roles of miR169 and NF-Y complex in seasonal bud dormancy induced by GA in Japanese apricot and provide new insights for the discovery of dormancy release mechanisms in woody plants.
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Affiliation(s)
- Jie Gao
- Laboratory of Fruit Tree Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaopeng Ni
- Laboratory of Fruit Tree Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hantao Li
- Laboratory of Fruit Tree Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Faisal Hayat
- Laboratory of Fruit Tree Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ting Shi
- Laboratory of Fruit Tree Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhihong Gao
- Laboratory of Fruit Tree Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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13
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Ogata T, Ishizaki T, Fujita M, Fujita Y. CRISPR/Cas9-targeted mutagenesis of OsERA1 confers enhanced responses to abscisic acid and drought stress and increased primary root growth under nonstressed conditions in rice. PLoS One 2020; 15:e0243376. [PMID: 33270810 PMCID: PMC7714338 DOI: 10.1371/journal.pone.0243376] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/19/2020] [Indexed: 01/10/2023] Open
Abstract
Abscisic acid (ABA) signaling components play an important role in the drought stress response in plants. Arabidopsis thaliana ENHANCED RESPONSE TO ABA1 (ERA1) encodes the β-subunit of farnesyltransferase and regulates ABA signaling and the dehydration response. Therefore, ERA1 is an important candidate gene for enhancing drought tolerance in numerous crops. However, a rice (Oryza sativa) ERA1 homolog has not been characterized previously. Here, we show that rice osera1 mutant lines, harboring CRISPR/Cas9-induced frameshift mutations, exhibit similar leaf growth as control plants but increased primary root growth. The osera1 mutant lines also display increased sensitivity to ABA and an enhanced response to drought stress through stomatal regulation. These results illustrate that OsERA1 is a negative regulator of primary root growth under nonstressed conditions and also of responses to ABA and drought stress in rice. These findings improve our understanding of the role of ABA signaling in the drought stress response in rice and suggest a strategy to genetically improve rice.
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Affiliation(s)
- Takuya Ogata
- Biological Resources and Post-harvest Division, Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, Japan
| | - Takuma Ishizaki
- Tropical Agriculture Research Front (TARF), Japan International Research Center for Agricultural Sciences (JIRCAS), Ishigaki, Okinawa, Japan
| | - Miki Fujita
- RIKEN Center for Sustainable Resource Science, Tsukuba, Ibaraki, Japan
| | - Yasunari Fujita
- Biological Resources and Post-harvest Division, Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, Japan
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- * E-mail:
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14
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Cheng C, Hu S, Han Y, Xia D, Huang BL, Wu W, Hussain J, Zhang X, Huang B. Yellow nutsedge WRI4-like gene improves drought tolerance in Arabidopsis thaliana by promoting cuticular wax biosynthesis. BMC PLANT BIOLOGY 2020; 20:498. [PMID: 33129252 PMCID: PMC7603781 DOI: 10.1186/s12870-020-02707-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 10/19/2020] [Indexed: 05/31/2023]
Abstract
BACKGROUND Cuticular wax plays important role in protecting plants from drought stress. In Arabidopsis WRI4 improves drought tolerance by regulating the biosynthesis of fatty acids and cuticular wax. Cyperus esculentus (yellow nutsedge) is a tough weed found in tropical and temperate zones as well as in cooler regions. In the current study, we report the molecular cloning of a WRI4-like gene from Cyperus esculentus and its functional characterization in Arabidopsis. RESULTS Using RACE PCR, full-length WRI-like gene was amplified from yellow nutsedge. Phylogenetic analyses and amino acid comparison suggested it to be a WRI4-like gene. According to the tissue-specific expression data, the highest expression of WRI4-like gene was found in leaves, followed by roots and tuber. Transgenic Arabidopsis plants expressing nutsedge WRI4-like gene manifested improved drought stress tolerance. Transgenic lines showed significantly reduced stomatal conductance, transpiration rate, chlorophyll leaching, water loss and improved water use efficiency (WUE). In the absence of drought stress, expression of key genes for fatty acid biosynthesis was not significantly different between transgenic lines and WT while that of cuticular wax biosynthesis genes was significantly higher in transgenic lines than WT. The PEG-simulated drought stress significantly increased expression of key genes for fatty acid as well as wax biosynthesis in transgenic Arabidopsis lines but not in WT plants. Consistent with the gene expression data, cuticular wax load and deposition was significantly higher in stem and leaves of transgenic lines compared with WT under control as well as drought stress conditions. CONCLUSIONS WRI4-like gene from Cyperus esculentus improves drought tolerance in Arabidopsis probably by promoting cuticular wax biosynthesis and deposition. This in turn lowers chlorophyll leaching, stomatal conductance, transpiration rate, water loss and improves water use efficiency under drought stress conditions. Therefore, CeWRI4-like gene could be a good candidate for improving drought tolerance in crops.
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Affiliation(s)
- Chao Cheng
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Science, Hubei University, Wuhan, 430062, China
| | - Shutong Hu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Science, Hubei University, Wuhan, 430062, China
| | - Yun Han
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Science, Hubei University, Wuhan, 430062, China
| | - Di Xia
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Science, Hubei University, Wuhan, 430062, China
| | - Bang-Lian Huang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Science, Hubei University, Wuhan, 430062, China
| | - Wenhua Wu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Science, Hubei University, Wuhan, 430062, China
| | - Jamshaid Hussain
- Biotechnology Department, COMSATS University Islamabad, Abbottabad Campus 22060, University Road, Abbottabad, Pakistan
| | - Xuekun Zhang
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, 434023, China.
| | - Bangquan Huang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Science, Hubei University, Wuhan, 430062, China.
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15
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Devi MJ, Reddy VR. Stomatal closure response to soil drying at different vapor pressure deficit conditions in maize. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:714-722. [PMID: 32758980 DOI: 10.1016/j.plaphy.2020.07.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/09/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
A plant transpiration rate under progressive soil drying remains constant until a threshold fraction of transpirable soil water (FTSW) is reached, and subsequently decreases linearly. The sensitivity of this function and the involvement of abscisic acid (ABA) and aquaporins in such responses have not been compared at various levels of atmospheric evaporative demand conditions. This study was conducted in controlled environment chambers with a drought-tolerant maize hybrid imposing progressive drought stress under three levels of vapor pressure deficit (VPD- 1.2, 2.3, and 3.5 kPa). A shift in threshold-FTSW from 1.2 kPa (FTSW-0.42) VPD to 3.5 kPa(FTSW-0.51) VPD was observed, showing an effect of VPD on stomatal closure response under soil drought conditions. Foliar ABA showed a substantial rise approximately at the same time as of stomatal closure initiated (FTSW-threshold), indicating ABA involvement. As the drought progressed, an increase in plasma membrane intrinsic protein and a decrease in tonoplast intrinsic protein expression levels were observed. Overall, this study suggests the influence of evaporative demand on the initiation of stomatal closure of drought-tolerant maize subjected to soil drying. The sensitivity of stomatal closure was associated with foliar ABA under drought stress but not under high evaporative demand conditions, indicating alternative water conservative mechanisms.
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Affiliation(s)
- Mura Jyostna Devi
- USDA-ARS, Adaptive Cropping Systems Laboratory, Beltsville Agriculture Research Center, Beltsville, MD, United States.
| | - Vangimalla R Reddy
- USDA-ARS, Adaptive Cropping Systems Laboratory, Beltsville Agriculture Research Center, Beltsville, MD, United States
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16
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Ahmed RF, Irfan M, Shakir HA, Khan M, Chen L. Engineering drought tolerance in plants by modification of transcription and signalling factors. BIOTECHNOL BIOTEC EQ 2020. [DOI: 10.1080/13102818.2020.1805359] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Rida Fatima Ahmed
- Department of Biotechnology, Faculty of Science, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Irfan
- Department of Biotechnology, Faculty of Science, University of Sargodha, Sargodha, Pakistan
| | - Hafiz Abdullah Shakir
- Department of Zoology, Faculty of life Science, University of the Punjab New Campus, Lahore, Pakistan
| | - Muhammad Khan
- Department of Zoology, Faculty of life Science, University of the Punjab New Campus, Lahore, Pakistan
| | - Lijing Chen
- Department of Biotechnology, College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning, PR China
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17
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Choi YS, Im MK, Lee MR, Kim CS, Lee KH. Highly sensitive enclosed multilayer paper-based microfluidic sensor for quantifying proline in plants. Anal Chim Acta 2020; 1105:169-177. [DOI: 10.1016/j.aca.2020.01.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/11/2020] [Accepted: 01/17/2020] [Indexed: 10/25/2022]
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18
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Li D, Wei J, Peng Z, Ma W, Yang Q, Song Z, Sun W, Yang W, Yuan L, Xu X, Chang W, Rengel Z, Shen J, Reiter RJ, Cui X, Yu D, Chen Q. Daily rhythms of phytomelatonin signaling modulate diurnal stomatal closure via regulating reactive oxygen species dynamics in Arabidopsis. J Pineal Res 2020; 68:e12640. [PMID: 32064655 DOI: 10.1111/jpi.12640] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/06/2020] [Accepted: 02/11/2020] [Indexed: 12/26/2022]
Abstract
Melatonin is a well-studied neurohormone oscillating in a 24-h cycle in vertebrates. Phytomelatonin is widespread in plant kingdom, but it remains elusive whether this newly characterized putative hormone underlies the regulation by daily rhythms. Here, we report phytomelatonin signaling, as reflected by changes in endogenous concentrations of phytomelatonin and expression of genes associated with biosynthesis of phytomelatonin (AtSNAT1, AtCOMT1, and AtASMT) and its receptor (AtPMTR1), shows 24-h oscillations in Arabidopsis. The variation of reactive oxygen species (ROS) production and scavenging and expression of ROS-related genes significantly decrease in pmtr1 and snat and increase in PMTR1-OE seedlings, indicating the rhythmicity in phytomelatonin signaling is required for maintenance of ROS dynamics. Additionally, the ROS signaling feedback influences the expression of AtSNAT1, AtCOMT1, AtASMT, and AtPMTR1, suggesting the phytomelatonin and ROS signaling are coordinately interrelated. The pmtr1 mutant plants lose diurnal stomatal closure, with stomata remaining open during daytime as well as nighttime and mutants showing more water loss and drought sensitivity when compared with the wild-type Col-0 plants. Taken together, our results suggest that PMTR1-regulated ROS signaling peaks in the afternoon and may transmit the darkness signals to trigger stomatal closure, which might be essential for high water-use efficiency and drought tolerance.
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Affiliation(s)
- Dongxu Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Jian Wei
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Zhongping Peng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Wenna Ma
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Qian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Zhongbang Song
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Wei Sun
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li Yuan
- Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, China
| | - Xiaodong Xu
- Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, China
| | - Wei Chang
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Zed Rengel
- Faculty of Science, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
| | - Jianbo Shen
- Key Laboratory of Plant-Soil Interactions, Department of Plant Nutrition, Ministry of Education, China Agricultural University, Beijing, China
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
| | - Xiuming Cui
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Dashi Yu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - Qi Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
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19
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Wu JR, Wang TY, Weng CP, Duong NKT, Wu SJ. AtJ3, a specific HSP40 protein, mediates protein farnesylation-dependent response to heat stress in Arabidopsis. PLANTA 2019; 250:1449-1460. [PMID: 31309322 DOI: 10.1007/s00425-019-03239-7] [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: 05/08/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
Despite AtJ3 and AtJ2 sharing a high protein-sequence identity and both being substrates of protein farnesyltransferase (PFT), AtJ3 but not AtJ2 mediates in Arabidopsis the heat-dependent phenotypes derived from farnesylation modification. Arabidopsis HEAT-INTOERANT 5 (HIT5)/ENHANCED RESPONSE TO ABA 1 (ERA1) encodes the β-subunit of the protein farnesyltransferase (PFT), and the hit5/era1 mutant is better able to tolerate heat-shock stress than the wild type. Given that Arabidopsis AtJ2 (J2) and AtJ3 (J3) are heat-shock protein 40 (HSP40) homologs, sharing 90% protein-sequence identity, and each contains a CaaX box for farnesylation; atj2 (j2) and atj3 (j3) mutants were subjected to heat-shock treatment. Results showed that j3 but not j2 manifested the heat-shock tolerant phenotype. In addition, transgenic j3 plants that expressed a CaaX- abolishing J3C417S construct maintained the same capacity to tolerate heat shock as j3. The basal transcript levels of HEAT-SHOCK PROTEIN 101 (HSP101) in hit5/era1 and j3 were higher than those in the wild type. Although the capacities of j3/hsp101 and hit5/hsp101 double mutants to tolerate heat-shock stress declined compared to those of j3 and hit5/era1, they were still greater than that of the wild type. These results show that a lack of farnesylated J3 contributes to the heat-dependent phenotypes of hit5/era1, in part by the modulation of HSP101 activity, and also indicates that (a) mediator(s) other than J3 is (are) involved in the PFT-regulated heat-stress response. In addition, because HSP40s are known to function in dimer formation, bimolecular fluorescence complementation experiments were performed, and results show that J3 could dimerize regardless of farnesylation. In sum, in this study, a specific PFT substrate was identified, and its roles in the farnesylation-regulated heat-stress responses were clarified, which could be of use in future agricultural applications.
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Affiliation(s)
- Jia-Rong Wu
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Tzu-Yun Wang
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Chi-Pei Weng
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Ngoc Kieu Thi Duong
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Shaw-Jye Wu
- Department of Life Sciences, National Central University, 300 Jhong-Da Road, Jhong-Li District, Taoyuan City, 32001, Taiwan.
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20
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Hála M, Žárský V. Protein Prenylation in Plant Stress Responses. Molecules 2019; 24:molecules24213906. [PMID: 31671559 PMCID: PMC6866125 DOI: 10.3390/molecules24213906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/02/2022] Open
Abstract
Protein prenylation is one of the most important posttranslational modifications of proteins. Prenylated proteins play important roles in different developmental processes as well as stress responses in plants as the addition of hydrophobic prenyl chains (mostly farnesyl or geranyl) allow otherwise hydrophilic proteins to operate as peripheral lipid membrane proteins. This review focuses on selected aspects connecting protein prenylation with plant responses to both abiotic and biotic stresses. It summarizes how changes in protein prenylation impact plant growth, deals with several families of proteins involved in stress response and highlights prominent regulatory importance of prenylated small GTPases and chaperons. Potential possibilities of these proteins to be applicable for biotechnologies are discussed.
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Affiliation(s)
- Michal Hála
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44 Prague, Czech Republic.
| | - Viktor Žárský
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44 Prague, Czech Republic.
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21
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Cui F, Wu W, Wang K, Zhang Y, Hu Z, Brosché M, Liu S, Overmyer K. Cell death regulation but not abscisic acid signaling is required for enhanced immunity to Botrytis in Arabidopsis cuticle-permeable mutants. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:5971-5984. [PMID: 31328223 PMCID: PMC6812726 DOI: 10.1093/jxb/erz345] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 07/16/2019] [Indexed: 05/21/2023]
Abstract
Prevailing evidence indicates that abscisic acid (ABA) negatively influences immunity to the fungal pathogen Botrytis cinerea in most but not all cases. ABA is required for cuticle biosynthesis, and cuticle permeability enhances immunity to Botrytis via unknown mechanisms. This complex web of responses obscures the role of ABA in Botrytis immunity. Here, we addressed the relationships between ABA sensitivity, cuticle permeability, and Botrytis immunity in the Arabidopsis thaliana ABA-hypersensitive mutants protein phosphatase2c quadruple mutant (pp2c-q) and enhanced response to aba1 (era1-2). Neither pp2c-q nor era1-2 exhibited phenotypes predicted by the known roles of ABA; conversely, era1-2 had a permeable cuticle and was Botrytis resistant. We employed RNA-seq analysis in cuticle-permeable mutants of differing ABA sensitivities and identified a core set of constitutively activated genes involved in Botrytis immunity and susceptibility to biotrophs, independent of ABA signaling. Furthermore, botrytis susceptible1 (bos1), a mutant with deregulated cell death and enhanced ABA sensitivity, suppressed the Botrytis immunity of cuticle permeable mutants, and this effect was linearly correlated with the extent of spread of wound-induced cell death in bos1. Overall, our data demonstrate that Botrytis immunity conferred by cuticle permeability can be genetically uncoupled from PP2C-regulated ABA sensitivity, but requires negative regulation of a parallel ABA-dependent cell-death pathway.
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Affiliation(s)
- Fuqiang Cui
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou, China
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, and Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
- Correspondence: or
| | - Wenwu Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou, China
| | - Kai Wang
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, and Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
| | - Yuan Zhang
- Library of Donghu Campus, Zhejiang A&F University, Lin’an, Hangzhou, China
| | - Zhubing Hu
- State Key Laboratory of Cotton Biology, Department of Biology, Institute of Plant Stress Biology, Henan University, Kaifeng, China
| | - Mikael Brosché
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, and Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou, China
- Correspondence: or
| | - Kirk Overmyer
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, and Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
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22
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Contreras-Moreira B, Serrano-Notivoli R, Mohammed NE, Cantalapiedra CP, Beguería S, Casas AM, Igartua E. Genetic association with high-resolution climate data reveals selection footprints in the genomes of barley landraces across the Iberian Peninsula. Mol Ecol 2019; 28:1994-2012. [PMID: 30614595 PMCID: PMC6563438 DOI: 10.1111/mec.15009] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 12/21/2018] [Accepted: 12/26/2018] [Indexed: 12/22/2022]
Abstract
Landraces are local populations of crop plants adapted to a particular environment. Extant landraces are surviving genetic archives, keeping signatures of the selection processes experienced by them until settling in their current niches. This study intends to establish relationships between genetic diversity of barley (Hordeum vulgare L.) landraces collected in Spain and the climate of their collection sites. A high-resolution climatic data set (5 × 5 km spatial, 1-day temporal grid) was computed from over 2,000 temperature and 7,000 precipitation stations across peninsular Spain. This data set, spanning the period 1981-2010, was used to derive agroclimatic variables meaningful for cereal production at the collection sites of 135 barley landraces. Variables summarize temperature, precipitation, evapotranspiration, potential vernalization and frost probability at different times of the year and time scales (season and month). SNP genotyping of the landraces was carried out combining Illumina Infinium assays and genotyping-by-sequencing, yielding 9,920 biallelic markers (7,479 with position on the barley reference genome). The association of these SNPs with agroclimatic variables was analysed at two levels of genetic diversity, with and without taking into account population structure. The whole data sets and analysis pipelines are documented and available at https://eead-csic-compbio.github.io/barley-agroclimatic-association. We found differential adaptation of the germplasm groups identified to be dominated by reactions to cold temperature and late-season frost occurrence, as well as to water availability. Several significant associations pointing at specific adaptations to agroclimatic features related to temperature and water availability were observed, and candidate genes underlying some of the main regions are proposed.
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Affiliation(s)
- Bruno Contreras-Moreira
- Estación Experimental de Aula Dei (EEAD-CSIC), Zaragoza, Spain.,Fundación ARAID, Zaragoza, Spain
| | | | - Naheif E Mohammed
- Estación Experimental de Aula Dei (EEAD-CSIC), Zaragoza, Spain.,Faculty of Agriculture, Agronomy Department, Sohag University, Sohag, Egypt
| | | | | | - Ana M Casas
- Estación Experimental de Aula Dei (EEAD-CSIC), Zaragoza, Spain
| | - Ernesto Igartua
- Estación Experimental de Aula Dei (EEAD-CSIC), Zaragoza, Spain
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23
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Choi YS, Lee MR, Kim CS, Lee KH. Detection of proline using a novel paper-based analytical device for on-site diagnosis of drought stress in plants. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:045002. [PMID: 31042988 DOI: 10.1063/1.5055798] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Abstract
We developed and characterized a paper-based microfluidic sensor for the on-site diagnosis of drought stress in plants. Proline was used as a biomarker for analyzing drought stress, which was extracted by a colorimetric method using the proline-ninhydrin reaction. Paper was used as the main sensor material for the on-site detection of proline as it is easily transportable and cost-effective. The paper-based sensor was fabricated using wax-printing and origami methods, and the sensor was precoated with ninhydrin to allow for easy and convenient on-site use. Furthermore, a sample-to-ninhydrin ratio of 1:2 was found to confer optimal sensitivity to the drought diagnosis sensor. The concentration of proline in a sample was quantified by red-green-blue analysis to determine the change in green color intensity levels in response to distinct proline concentrations, which were detected by the sensor. The limit of detection of proline using the devised sensor was 657 µM, and the green color intensity level decreased with increasing proline concentration. In addition, the sensor was validated in an experimental drought stress model with Arabidopsis and subjected to drought stress for 21 days, and the amount of proline detected was 10 mM. The devised paper-based microfluidic sensor highlights the possibility of the on-site evaluation of drought stress in plants with potential to be utilized in various agricultural areas in the future.
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Affiliation(s)
- Young-Soo Choi
- Agricultural Robotics and Automation Research Center, Chonnam National University, Gwangju 61186, South Korea
| | - Mi Rha Lee
- Agricultural Robotics and Automation Research Center, Chonnam National University, Gwangju 61186, South Korea
| | - Cheol Soo Kim
- Department of Plant Biotechnology, Chonnam National University, Gwangju 61186, South Korea
| | - Kyeong-Hwan Lee
- Agricultural Robotics and Automation Research Center, Chonnam National University, Gwangju 61186, South Korea
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24
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Zhang C, Guo X, Xie H, Li J, Liu X, Zhu B, Liu S, Li H, Li M, He M, Chen P. Quantitative phosphoproteomics of lectin receptor-like kinase VI.4 dependent abscisic acid response in Arabidopsis thaliana. PHYSIOLOGIA PLANTARUM 2019; 165:728-745. [PMID: 29797451 DOI: 10.1111/ppl.12763] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/14/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
Lectin receptor-like kinases (LecRKs) play important roles in the responses to adverse environment stress. Abscisic acid (ABA) is a plant hormone involved in plant growth, development and adverse environmental stress responses. Although some studies of ABA response LecRK genes have been reported, the molecular mechanisms of LecRKs regulation of downstream pathways under ABA induction are not well understood. The present study showed that LecRK-VI.4 responded to ABA and negatively regulated stomatal closure. Here, a quantitative phosphoproteomics approach based on mass spectrometry was employed to study the roles of LecRK-VI.4 in the ABA signaling pathway. Metal oxide affinity beads and C18 chromatography were used for phosphopeptide enrichment and separation. The isobaric tags for relative and absolute quantitation were used for profiling the phosphoproteome of mutant lecrk-vi.4-1 and wild-type Col-0 Arabidopsis under normal growth conditions or ABA treatments. In total, 475 unique phosphopeptides were quantified, including 81 phosphopeptides related to LecRK-VI.4 regulation. Gene ontology, protein-protein interaction and motif analysis were performed. The bioinformatics data showed that phosphorylated proteins regulated by LecRK-VI.4 had close relations with factors of stomatal function, which included aquaporin activity, H+ pump activity and the Ca2+ concentration in the cytoplasm. These data have expanded our understanding of how LecRK-VI.4 regulates ABA-mediated stomatal movements.
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Affiliation(s)
- Cheng Zhang
- College of Life Sciences, Hunan University, Changsha, 410082, China
| | - Xinhong Guo
- College of Life Sciences, Hunan University, Changsha, 410082, China
| | - Huali Xie
- Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Jinyan Li
- College of Life Sciences, Hunan University, Changsha, 410082, China
| | - Xiaoqian Liu
- Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Baode Zhu
- Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Shucan Liu
- College of Life Sciences, Hunan University, Changsha, 410082, China
| | - Huili Li
- College of Life Sciences, Hunan University, Changsha, 410082, China
| | - Meiling Li
- College of Life Sciences, Hunan University, Changsha, 410082, China
| | - Mingqi He
- College of Life Sciences, Hunan University, Changsha, 410082, China
| | - Ping Chen
- Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, Hunan Normal University, Changsha, 410081, China
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25
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Hussain HA, Men S, Hussain S, Chen Y, Ali S, Zhang S, Zhang K, Li Y, Xu Q, Liao C, Wang L. Interactive effects of drought and heat stresses on morpho-physiological attributes, yield, nutrient uptake and oxidative status in maize hybrids. Sci Rep 2019; 9:3890. [PMID: 30846745 PMCID: PMC6405865 DOI: 10.1038/s41598-019-40362-7] [Citation(s) in RCA: 187] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 02/11/2019] [Indexed: 01/01/2023] Open
Abstract
Maize is a sensitive crop to drought and heat stresses, particularly at the reproductive stages of development. The present study investigated the individual and interactive effects of drought (50% field capacity) and heat (38 °C/30 °C) stresses on morpho-physiological growth, yield, nutrient uptake and oxidative metabolism in two maize hybrids i.e., 'Xida 889' and 'Xida 319'. The stress treatments were applied at tasseling stage for 15 days. Drought, heat and drought + heat stress caused oxidative stress by the over-production of ROS (O2-, H2O2, OH-) and enhanced malondialdehyde contents, which led to reduced photosynthetic components, nutrients uptake and yield attributes. The concurrent occurrence of drought and heat was more severe for maize growth than the single stress. However, both stresses induced the metabolites accumulation and enzymatic and non-enzymatic antioxidants to prevent the oxidative damage. The performance of Xida 899 was more prominent than the Xida 319. The greater tolerance of Xida 889 to heat and drought stresses was attributed to strong antioxidant defense system, higher osmolyte accumulation, and maintenance of photosynthetic pigments and nutrient balance compared with Xida 319.
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Affiliation(s)
- Hafiz Athar Hussain
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region/Engineering Research Center of South Upland Agriculture, Ministry of Education/College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture, Beijing 100081, China
| | - Shengnan Men
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region/Engineering Research Center of South Upland Agriculture, Ministry of Education/College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China
| | - Saddam Hussain
- Department of Agronomy, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan.
| | - Yinglong Chen
- Institute of Soil and Water Conservation, Chinese Academy of Sciences, and Northwest A&F University, Yangling, 712100, China
- Institute of Agriculture, and School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6009, Australia
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
| | - Sai Zhang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region/Engineering Research Center of South Upland Agriculture, Ministry of Education/College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China
| | - Kangping Zhang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region/Engineering Research Center of South Upland Agriculture, Ministry of Education/College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China
| | - Yan Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region/Engineering Research Center of South Upland Agriculture, Ministry of Education/College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China
| | - Qiwen Xu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region/Engineering Research Center of South Upland Agriculture, Ministry of Education/College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China
| | - Changqing Liao
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region/Engineering Research Center of South Upland Agriculture, Ministry of Education/College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China
| | - Longchang Wang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region/Engineering Research Center of South Upland Agriculture, Ministry of Education/College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China.
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26
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Zhang H, Pan C, Gu S, Ma Q, Zhang Y, Li X, Shi K. Stomatal movements are involved in elevated CO 2 -mitigated high temperature stress in tomato. PHYSIOLOGIA PLANTARUM 2019; 165:569-583. [PMID: 29732568 DOI: 10.1111/ppl.12752] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/23/2018] [Accepted: 04/27/2018] [Indexed: 05/14/2023]
Abstract
Climate changes such as heat waves often affect plant growth and pose a growing threat to natural and agricultural ecosystems. Elevated atmospheric CO2 can mitigate the negative effects of heat stress, but the underlying mechanisms remain largely unclear. We examined the interactive effects of elevated CO2 (eCO2 ) and temperature on the generation of the hydrogen peroxide (H2 O2 ) and stomatal movement characteristics associated with heat tolerance in tomato seedlings grown under two CO2 concentrations (400 and 800 µmol mol-1 ) and two temperatures (25 and 42°C). eCO2 ameliorated the negative effects of heat stress, which was accompanied by greater amounts of RESPIRATORY BURST OXIDASE 1 (RBOH1) transcripts, apoplastic H2 O2 accumulation and decreased stomatal aperture. Silencing RBOH1 and SLOW-TYPE ANION CHANNEL, impeded eCO2 -induced stomatal closure and compromised the eCO2 -enhanced water use efficiency as well as the heat tolerance. Our findings suggest that RBOH1-dependent H2 O2 accumulation was involved in the eCO2 -induced stomatal closure, which participate in maintaining balance between water retention and heat loss under eCO2 concentrations. This phenomenon may be a contributor to eCO2 -induced heat tolerance in tomato, which will be critical for understanding how plants respond to both future climate extremes and changes in CO2 .
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Affiliation(s)
- Huan Zhang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, 310058, China
| | - Caizhe Pan
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, 310058, China
| | - Shaohan Gu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, 310058, China
| | - Qiaomei Ma
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, 310058, China
| | - Yiqing Zhang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, 310058, China
| | - Xin Li
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
| | - Kai Shi
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, 310058, China
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27
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Wang M, Le Moigne MA, Bertheloot J, Crespel L, Perez-Garcia MD, Ogé L, Demotes-Mainard S, Hamama L, Davière JM, Sakr S. BRANCHED1: A Key Hub of Shoot Branching. FRONTIERS IN PLANT SCIENCE 2019; 10:76. [PMID: 30809235 PMCID: PMC6379311 DOI: 10.3389/fpls.2019.00076] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 01/17/2019] [Indexed: 05/20/2023]
Abstract
Shoot branching is a key process for plant growth and fitness. Newly produced axes result from axillary bud outgrowth, which is at least partly mediated through the regulation of BRANCHED1 gene expression (BRC1/TB1/FC1). BRC1 encodes a pivotal bud-outgrowth-inhibiting transcription factor belonging to the TCP family. As the regulation of BRC1 expression is a hub for many shoot-branching-related mechanisms, it is influenced by endogenous (phytohormones and nutrients) and exogenous (light) inputs, which involve so-far only partly identified molecular networks. This review highlights the central role of BRC1 in shoot branching and its responsiveness to different stimuli, and emphasizes the different knowledge gaps that should be addressed in the near future.
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Affiliation(s)
- Ming Wang
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
| | - Marie-Anne Le Moigne
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
| | - Jessica Bertheloot
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
| | - Laurent Crespel
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
| | - Maria-Dolores Perez-Garcia
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
| | - Laurent Ogé
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
| | - Sabine Demotes-Mainard
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
| | - Latifa Hamama
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
| | - Jean-Michel Davière
- Institut de Biologie Moléculaire des Plantes, UPR2357, Université de Strasbourg, Strasbourg, France
| | - Soulaiman Sakr
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, SFR 4207 QUASAV, Université d’Angers, Beaucouzé, France
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28
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Optimization of the ninhydrin reaction and development of a multiwell plate-based high-throughput proline detection assay. Anal Biochem 2018; 556:57-62. [DOI: 10.1016/j.ab.2018.06.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 06/22/2018] [Accepted: 06/22/2018] [Indexed: 11/18/2022]
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29
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Kang X, Xu G, Lee B, Chen C, Zhang H, Kuang R, Ni M. HRB2 and BBX21 interaction modulates Arabidopsis ABI5 locus and stomatal aperture. PLANT, CELL & ENVIRONMENT 2018; 41:1912-1925. [PMID: 29748960 DOI: 10.1111/pce.13336] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 04/16/2018] [Accepted: 04/30/2018] [Indexed: 05/18/2023]
Abstract
Blue light triggers the opening of stomata in the morning to allow CO2 uptake and water loss through transpiration. During the day, plants may experience periodic drought and accumulate abscisic acid (ABA). ABA antagonizes blue light signalling through phosphatidic acid and reduces stomatal aperture. This study reveals a molecular mechanism by which two light signalling proteins interact to repress ABA signalling in the control of stomatal aperture. A hypersensitive to red and blue 2 (hrb2) mutant has a defective ATP-dependent chromatin-remodelling factor, PKL, in the chromodomain/helicase/DNA binding family. HRB2 enhances the light-induced expression of a B-box transcription factor gene, BBX21. BBX21 binds a T/G box in the ABI5 promoter and recruits HRB2 to modulate the chromatin structure at the ABI5 locus. Mutation in either HRB2 or BBX21 led to reduced water loss and ABA hypersensitivity. This hypersensitivity to ABA was well explained by the enhanced expression of the ABA signalling gene ABI5 in both mutants. Indeed, stomatal aperture was significantly reduced by ABI5 overexpression in the absence or presence of ABA under monochromatic light conditions. Overall, we present a regulatory loop in which two light signalling proteins repress ABA signalling to sustain gas exchange when plants experience periodic drought.
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Affiliation(s)
- Xiaojun Kang
- Department of Plant and Microbial Biology, University of Minnesota at Twin Cities, Saint Paul, MN, 55108, USA
| | - Gang Xu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - Byungha Lee
- Department of Plant and Microbial Biology, University of Minnesota at Twin Cities, Saint Paul, MN, 55108, USA
| | - Chen Chen
- Department of Plant and Microbial Biology, University of Minnesota at Twin Cities, Saint Paul, MN, 55108, USA
| | - Huanan Zhang
- Department of Computer Science and Engineering, University of Minnesota at Twin Cities, Minneapolis, MN, 55455, USA
| | - Rui Kuang
- Department of Computer Science and Engineering, University of Minnesota at Twin Cities, Minneapolis, MN, 55455, USA
| | - Min Ni
- Department of Plant and Microbial Biology, University of Minnesota at Twin Cities, Saint Paul, MN, 55108, USA
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, 271018, China
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30
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Podia V, Milioni D, Martzikou M, Haralampidis K. The role of Arabidopsis thaliana RASD1 gene in ABA-dependent abiotic stress response. PLANT BIOLOGY (STUTTGART, GERMANY) 2018; 20:307-317. [PMID: 29125669 DOI: 10.1111/plb.12662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 11/06/2017] [Indexed: 06/07/2023]
Abstract
Abiotic stress is one of the key parameters affecting plant productivity. Drought and soil salinity, in particular, challenge plants to activate various response mechanisms to withstand these adverse growth conditions. While the molecular events that take place are complex and to a large extent unclear, the plant hormone abscisic acid (ABA) is considered a major player in mediating the adaptation of plants to stress. Here we report the identification of an ABA-insensitive mutant from Arabidopsis thaliana. A combination of molecular, genetic and physiology approaches were implemented, to characterise the AtRASD1 locus (RESPONSIVENESS TO ABA SALT AND DROUGHT 1) and to investigate its role in plant development. RASD1 is expressed predominantly in the vascular system of A. thaliana and encodes a peptide of unknown function with no similarity to any known sequence to date. The protein is localised in the nucleus and the cytoplasm, and RASD1-impaired plants are drought-intolerant and insensitive to exogenous ABA and NaCl during germination and root growth. Our data indicate that RASD1 is involved in ABA-dependent signal transduction pathways and therefore in enabling plants to activate response mechanisms related to seed germination and abiotic stress.
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Affiliation(s)
- V Podia
- Faculty of Biology, Department of Botany, National and Kapodistrian University of Athens, Athens, Greece
| | - D Milioni
- Department of Agricultural Biotechnology, Agricultural University of Athens, Athens, Greece
| | - M Martzikou
- Faculty of Biology, Department of Botany, National and Kapodistrian University of Athens, Athens, Greece
| | - K Haralampidis
- Faculty of Biology, Department of Botany, National and Kapodistrian University of Athens, Athens, Greece
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Fu Y, Ma H, Chen S, Gu T, Gong J. Control of proline accumulation under drought via a novel pathway comprising the histone methylase CAU1 and the transcription factor ANAC055. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:579-588. [PMID: 29253181 PMCID: PMC5853435 DOI: 10.1093/jxb/erx419] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Proline plays a crucial role in the drought stress response in plants. However, there are still gaps in our knowledge about the molecular mechanisms that regulate proline metabolism under drought stress. Here, we report that the histone methylase encoded by CAU1, which is genetically upstream of P5CS1 (encoding the proline biosynthetic enzyme Δ1-pyrroline-5-carboxylate synthetase 1), plays a crucial role in proline-mediated drought tolerance. We determined that the transcript level of CAU1 decreased while that of ANAC055 (encoding a transcription factor) increased in wild-type Arabidopsis under drought stress. Further analyses showed that CAU1 bound to the promoter of ANAC055 and suppressed its expression via H4R3sme2-type histone methylation in the promoter region. Thus, under drought stress, a decreased level of CAU1 led to an increased transcript level of ANAC055, which induced the expression of P5CS1 and increased proline level independently of CAS. Drought tolerance and the level of proline were found to be decreased in the cau1 anac055 double-mutant, while proline supplementation restored drought sensitivity in the anac055 mutant. Our results reveal the details of a novel pathway leading to drought tolerance mediated by CAU1.
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Affiliation(s)
- Yanlei Fu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People’s Republic of China
- Correspondence:
| | - Hailing Ma
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Siying Chen
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Tianyu Gu
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Jiming Gong
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
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Cai T, Meng X, Liu X, Liu T, Wang H, Jia Z, Yang D, Ren X. Exogenous Hormonal Application Regulates the Occurrence of Wheat Tillers by Changing Endogenous Hormones. FRONTIERS IN PLANT SCIENCE 2018; 9:1886. [PMID: 30622548 PMCID: PMC6308958 DOI: 10.3389/fpls.2018.01886] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/06/2018] [Indexed: 05/11/2023]
Abstract
Plant hormones play important roles in regulating the occurrence of crop tillers. However, little is known about the relationships and the underlying mechanisms between endogenous hormones and the occurrence of wheat tillers induced by exogenous hormones. In this study, two winter wheat cultivars, Xinong 979 and Xiaoyan 22, were used to investigate the effects of the exogenous application of indole-3-acetic acid (IAA) and zeatin (Z) on the occurrence of wheat tillers and investigate underlying mechanisms regulating the occurrence of tillers. The results showed that the application of IAA inhibited the occurrence of tillers, and external Z application promoted the occurrence rate of tillers under low nitrogen conditions. Further analysis of the results showed that exogenous IAA completely inhibited the growth of tiller buds, while exogenous Z significantly promoted the growth rate of tiller buds in low nitrogen conditions. Endogenous hormones exhibit important functions in regulating the growth of tiller buds, which contents were affected by exogenous hormones. Furthermore, according to the principal component analysis and correlation analysis, the growth of tiller buds was significantly positively correlated with the content of endogenous Z, whereas it was significantly negatively correlated with the ratios of endogenous IAA to endogenous Z (IAA:Z) and endogenous abscisic acid (ABA) to endogenous Z (ABA:Z). Moreover, no significant correlation was observed between the growth of the tiller buds and the endogenous IAA, endogenous gibberellins (GAs), and endogenous ABA content. These results suggested that Z played key roles in regulating the tiller occurrence, and exogenous hormones regulated the growth of wheat tiller buds via affecting the Z contents, thus regulating the occurrence of wheat tiller.
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Affiliation(s)
- Tie Cai
- Key Laboratory of Crop Physi-Ecology and Tillage Science in North-Western Loess Plateau, College of Agronomy, Northwest A&F University, Yangling, China
| | - Xiangping Meng
- Key Laboratory of Crop Physi-Ecology and Tillage Science in North-Western Loess Plateau, College of Agronomy, Northwest A&F University, Yangling, China
| | - Xiaoli Liu
- Key Laboratory of Crop Physi-Ecology and Tillage Science in North-Western Loess Plateau, College of Agronomy, Northwest A&F University, Yangling, China
| | - Tiening Liu
- Key Laboratory of Crop Physi-Ecology and Tillage Science in North-Western Loess Plateau, College of Agronomy, Northwest A&F University, Yangling, China
| | - Hui Wang
- Key Laboratory of Crop Physi-Ecology and Tillage Science in North-Western Loess Plateau, College of Agronomy, Northwest A&F University, Yangling, China
| | - Zhikuan Jia
- Key Laboratory of Crop Physi-Ecology and Tillage Science in North-Western Loess Plateau, College of Agronomy, Northwest A&F University, Yangling, China
| | - Dongqing Yang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, China
- *Correspondence: Dongqing Yang, Xiaolong Ren,
| | - Xiaolong Ren
- Key Laboratory of Crop Physi-Ecology and Tillage Science in North-Western Loess Plateau, College of Agronomy, Northwest A&F University, Yangling, China
- *Correspondence: Dongqing Yang, Xiaolong Ren,
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L-Met Activates Arabidopsis GLR Ca 2+ Channels Upstream of ROS Production and Regulates Stomatal Movement. Cell Rep 2017; 17:2553-2561. [PMID: 27926860 DOI: 10.1016/j.celrep.2016.11.015] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/10/2016] [Accepted: 10/31/2016] [Indexed: 12/11/2022] Open
Abstract
Plant glutamate receptor homologs (GLRs) have long been proposed to function as ligand-gated Ca2+ channels, but no in planta evidence has been provided. Here, we present genetic evidence that Arabidopsis GLR3.1 and GLR3.5 form Ca2+ channels activated by L-methionine (L-Met) at physiological concentrations and regulate stomatal apertures and plant growth. The glr3.1/3.5 mutations resulted in a lower cytosolic Ca2+ level, defective Ca2+-induced stomatal closure, and Ca2+-deficient growth disorder, all of which involved L-Met. Patch-clamp analyses of guard cells showed that GLR3.1/3.5 Ca2+ channels are activated specifically by L-Met, with the activation abolished in glr3.1/3.5. Moreover, GLR3.1/3.5 Ca2+ channels are distinct from previously characterized ROS-activated Ca2+ channels and act upstream of ROS, providing Ca2+ transients necessary for the activation of NADPH oxidases. Our data indicate that GLR3.1/3.5 constitute L-Met-activated Ca2+ channels responsible for maintaining basal [Ca2+]cyt, play a pivotal role in plant growth, and act upstream of ROS, thereby regulating stomatal aperture.
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Jamshed M, Liang S, M. N. Hickerson N, Samuel MA. Farnesylation-mediated subcellular localization is required for CYP85A2 function. PLANT SIGNALING & BEHAVIOR 2017; 12:e1382795. [PMID: 28949830 PMCID: PMC5647987 DOI: 10.1080/15592324.2017.1382795] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Protein farnesylation refers to the addition of a 15-carbon farnesyl isoprenoid to the cysteine residue of the CaaX motif at the carboxy terminus of target proteins. In spite of its known roles in plant development and abiotic stress tolerance, how these processes are precisely regulated by farnesylation had remained elusive. We recently showed that CYP85A2, the cytochrome P450, which converts castasterone to brassinolide in the last step of brassinosteroid synthesis must be farnesylated in order to function in this pathway. Lack of either CYP85A2 or the farnesylation motif of CYP85A2 resulted in reduced brassinolide accumulation, hypersensitivity to ABA, and increased plant drought tolerance. In this study, we have assessed the influence of the N-terminal secretory signal and the C-terminal CaaX motif of CYP85A2 in mediating CYP85A2 function and targeting to endomembrane compartments. We show that CaaX motif could still target CYPA85A2 in the absence of an intact N-terminal secretory signal to the respective membrane compartments and partially rescue cyp85a2-2 phenotypes. However, in the absence of both the CaaX motif and the secretory signal, CYP85A2 is not targeted to the membranes and becomes unstable.
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Affiliation(s)
- Muhammad Jamshed
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Siyu Liang
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Neil M. N. Hickerson
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Marcus A. Samuel
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada
- CONTACT Marcus A. Samuel Integrative Cell Biology (Plant Biology) BI 392, Department of Biological Sciences, University of Calgary, Alberta, T2N 1N4
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Albert R, Acharya BR, Jeon BW, Zañudo JGT, Zhu M, Osman K, Assmann SM. A new discrete dynamic model of ABA-induced stomatal closure predicts key feedback loops. PLoS Biol 2017; 15:e2003451. [PMID: 28937978 PMCID: PMC5627951 DOI: 10.1371/journal.pbio.2003451] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/04/2017] [Accepted: 09/04/2017] [Indexed: 11/19/2022] Open
Abstract
Stomata, microscopic pores in leaf surfaces through which water loss and carbon dioxide uptake occur, are closed in response to drought by the phytohormone abscisic acid (ABA). This process is vital for drought tolerance and has been the topic of extensive experimental investigation in the last decades. Although a core signaling chain has been elucidated consisting of ABA binding to receptors, which alleviates negative regulation by protein phosphatases 2C (PP2Cs) of the protein kinase OPEN STOMATA 1 (OST1) and ultimately results in activation of anion channels, osmotic water loss, and stomatal closure, over 70 additional components have been identified, yet their relationships with each other and the core components are poorly elucidated. We integrated and processed hundreds of disparate observations regarding ABA signal transduction responses underlying stomatal closure into a network of 84 nodes and 156 edges and, as a result, established those relationships, including identification of a 36-node, strongly connected (feedback-rich) component as well as its in- and out-components. The network's domination by a feedback-rich component may reflect a general feature of rapid signaling events. We developed a discrete dynamic model of this network and elucidated the effects of ABA plus knockout or constitutive activity of 79 nodes on both the outcome of the system (closure) and the status of all internal nodes. The model, with more than 1024 system states, is far from fully determined by the available data, yet model results agree with existing experiments in 82 cases and disagree in only 17 cases, a validation rate of 75%. Our results reveal nodes that could be engineered to impact stomatal closure in a controlled fashion and also provide over 140 novel predictions for which experimental data are currently lacking. Noting the paucity of wet-bench data regarding combinatorial effects of ABA and internal node activation, we experimentally confirmed several predictions of the model with regard to reactive oxygen species, cytosolic Ca2+ (Ca2+c), and heterotrimeric G-protein signaling. We analyzed dynamics-determining positive and negative feedback loops, thereby elucidating the attractor (dynamic behavior) repertoire of the system and the groups of nodes that determine each attractor. Based on this analysis, we predict the likely presence of a previously unrecognized feedback mechanism dependent on Ca2+c. This mechanism would provide model agreement with 10 additional experimental observations, for a validation rate of 85%. Our research underscores the importance of feedback regulation in generating robust and adaptable biological responses. The high validation rate of our model illustrates the advantages of discrete dynamic modeling for complex, nonlinear systems common in biology.
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Affiliation(s)
- Réka Albert
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Biswa R. Acharya
- Biology Department, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Byeong Wook Jeon
- Biology Department, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Jorge G. T. Zañudo
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Mengmeng Zhu
- Biology Department, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Karim Osman
- Biology Department, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Sarah M. Assmann
- Biology Department, Pennsylvania State University, University Park, Pennsylvania, United States of America
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36
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Saradadevi R, Palta JA, Siddique KHM. ABA-Mediated Stomatal Response in Regulating Water Use during the Development of Terminal Drought in Wheat. FRONTIERS IN PLANT SCIENCE 2017; 8:1251. [PMID: 28769957 PMCID: PMC5513975 DOI: 10.3389/fpls.2017.01251] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 07/03/2017] [Indexed: 05/19/2023]
Abstract
End-of-season drought or "terminal drought," which occurs after flowering, is considered the most significant abiotic stress affecting crop yields. Wheat crop production in Mediterranean-type environments is often exposed to terminal drought due to decreasing rainfall and rapid increases in temperature and evapotranspiration during spring when wheat crops enter the reproductive stage. Under such conditions, every millimeter of extra soil water extracted by the roots benefits grain filling and yield and improves water use efficiency (WUE). When terminal drought develops, soil dries from the top, exposing the top part of the root system to dry soil while the bottom part is in contact with available soil water. Plant roots sense the drying soil and produce signals, which on transmission to shoots trigger stomatal closure to regulate crop water use through transpiration. However, transpiration is linked to crop growth and productivity and limiting transpiration may reduce potential yield. While an early and high degree of stomatal closure affects photosynthesis and hence biomass production, a late and low degree of stomatal closure exhausts available soil water rapidly which results in yield losses through a reduction in post-anthesis water use. The plant hormone abscisic acid (ABA) is considered the major chemical signal involved in stomatal regulation. Wheat genotypes differ in their ability to produce ABA under drought and also in their stomatal sensitivity to ABA. In this viewpoint article we discuss the possibilities of exploiting genotypic differences in ABA response to soil drying in regulating the use of water under terminal drought. Root density distribution in the upper drying layers of the soil profile is identified as a candidate trait that can affect ABA accumulation and subsequent stomatal closure. We also examine whether leaf ABA can be designated as a surrogate characteristic for improved WUE in wheat to sustain grain yield under terminal drought. Ease of collecting leaf samples to quantify ABA compared to extracting xylem sap will facilitate rapid screening of a large number of germplasm for drought tolerance.
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Affiliation(s)
- Renu Saradadevi
- School of Agriculture and Environment, The University of Western Australia, PerthWA, Australia
- The UWA Institute of Agriculture, The University of Western Australia, PerthWA, Australia
| | - Jairo A. Palta
- School of Agriculture and Environment, The University of Western Australia, PerthWA, Australia
- The UWA Institute of Agriculture, The University of Western Australia, PerthWA, Australia
- CSIRO Agriculture and Food, WembleyWA, Australia
| | - Kadambot H. M. Siddique
- School of Agriculture and Environment, The University of Western Australia, PerthWA, Australia
- The UWA Institute of Agriculture, The University of Western Australia, PerthWA, Australia
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37
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Kim JM, To TK, Matsui A, Tanoi K, Kobayashi NI, Matsuda F, Habu Y, Ogawa D, Sakamoto T, Matsunaga S, Bashir K, Rasheed S, Ando M, Takeda H, Kawaura K, Kusano M, Fukushima A, Endo TA, Kuromori T, Ishida J, Morosawa T, Tanaka M, Torii C, Takebayashi Y, Sakakibara H, Ogihara Y, Saito K, Shinozaki K, Devoto A, Seki M. Acetate-mediated novel survival strategy against drought in plants. NATURE PLANTS 2017; 3:17097. [PMID: 28650429 DOI: 10.1038/nplants.2017.97] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 05/25/2017] [Indexed: 05/19/2023]
Abstract
Water deficit caused by global climate changes seriously endangers the survival of organisms and crop productivity, and increases environmental deterioration1,2. Plants' resistance to drought involves global reprogramming of transcription, cellular metabolism, hormone signalling and chromatin modification3-8. However, how these regulatory responses are coordinated via the various pathways, and the underlying mechanisms, are largely unknown. Herein, we report an essential drought-responsive network in which plants trigger a dynamic metabolic flux conversion from glycolysis into acetate synthesis to stimulate the jasmonate (JA) signalling pathway to confer drought tolerance. In Arabidopsis, the ON/OFF switching of this whole network is directly dependent on histone deacetylase HDA6. In addition, exogenous acetic acid promotes de novo JA synthesis and enrichment of histone H4 acetylation, which influences the priming of the JA signalling pathway for plant drought tolerance. This novel acetate function is evolutionarily conserved as a survival strategy against environmental changes in plants. Furthermore, the external application of acetic acid successfully enhanced the drought tolerance in Arabidopsis, rapeseed, maize, rice and wheat plants. Our findings highlight a radically new survival strategy that exploits an epigenetic switch of metabolic flux conversion and hormone signalling by which plants adapt to drought.
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Affiliation(s)
- Jong-Myong Kim
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Taiko Kim To
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Akihiro Matsui
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Keitaro Tanoi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Natsuko I Kobayashi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Fumio Matsuda
- Metabolic Engineering Laboratory, Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, 1-5, Yamadaoka, Suita, Osaka 565-0871, Japan
- Metabolomics Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Yoshiki Habu
- Plant Physiology Research Unit, Division of Plant and Microbial Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Daisuke Ogawa
- Breeding Strategies Research Unit, Division of Basic Research, Institute of Crop Science, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Takuya Sakamoto
- Department of Applied Biological Science, Graduate School of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Sachihiro Matsunaga
- Department of Applied Biological Science, Graduate School of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Khurram Bashir
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Sultana Rasheed
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Marina Ando
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
| | - Hiroko Takeda
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
| | - Kanako Kawaura
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
| | - Miyako Kusano
- Metabolomics Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Atsushi Fukushima
- Metabolome Informatics Research Team, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Takaho A Endo
- Laboratory for Integrative Genomics, RIKEN Centre for Integrative Medical Sciences, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Takashi Kuromori
- Gene Discovery Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Junko Ishida
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Taeko Morosawa
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Chieko Torii
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Yumiko Takebayashi
- Plant Productivity System Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Hitoshi Sakakibara
- Plant Productivity System Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Yasunari Ogihara
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
| | - Kazuki Saito
- Metabolomics Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kazuo Shinozaki
- Gene Discovery Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Alessandra Devoto
- School of Biological Sciences, Plant Molecular Sciences, Centre for Systems and Synthetic Biology, Royal Holloway University of London, Egham TW20 0EX, UK
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
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Ogata T, Nagatoshi Y, Yamagishi N, Yoshikawa N, Fujita Y. Virus-induced down-regulation of GmERA1A and GmERA1B genes enhances the stomatal response to abscisic acid and drought resistance in soybean. PLoS One 2017; 12:e0175650. [PMID: 28419130 PMCID: PMC5395220 DOI: 10.1371/journal.pone.0175650] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 03/29/2017] [Indexed: 01/01/2023] Open
Abstract
Drought is a major threat to global soybean production. The limited transformation potential and polyploid nature of soybean have hindered functional analysis of soybean genes. Previous research has implicated farnesylation in the plant's response to abscisic acid (ABA) and drought tolerance. We therefore used virus-induced gene silencing (VIGS) to evaluate farnesyltransferase genes, GmERA1A and GmERA1B (Glycine max Enhanced Response to ABA1-A and -B), as potential targets for increasing drought resistance in soybean. Apple latent spherical virus (ALSV)-mediated GmERA1-down-regulated soybean leaves displayed an enhanced stomatal response to ABA and reduced water loss and wilting under dehydration conditions, suggesting that GmERA1A and GmERA1B negatively regulate ABA signaling in soybean guard cells. The findings provide evidence that the ALSV-VIGS system, which bypasses the need to generate transgenic plants, is a useful tool for analyzing gene function using only a single down-regulated leaf. Thus, the ALSV-VIGS system could constitute part of a next-generation molecular breeding pipeline to accelerate drought resistance breeding in soybean.
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Affiliation(s)
- Takuya Ogata
- Biological Resources and Post-Harvest Division, Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, Japan
| | - Yukari Nagatoshi
- Biological Resources and Post-Harvest Division, Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, Japan
| | - Noriko Yamagishi
- Plant Pathology Laboratory, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
| | - Nobuyuki Yoshikawa
- Plant Pathology Laboratory, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
| | - Yasunari Fujita
- Biological Resources and Post-Harvest Division, Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, Japan
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Wu JR, Wang LC, Lin YR, Weng CP, Yeh CH, Wu SJ. The Arabidopsis heat-intolerant 5 (hit5)/enhanced response to aba 1 (era1) mutant reveals the crucial role of protein farnesylation in plant responses to heat stress. THE NEW PHYTOLOGIST 2017; 213:1181-1193. [PMID: 27673599 DOI: 10.1111/nph.14212] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 08/21/2016] [Indexed: 05/11/2023]
Abstract
Protein farnesylation is a post-translational modification known to regulate abscisic acid (ABA)-mediated drought tolerance in plants. However, it is unclear whether and to what extent protein farnesylation affects plant tolerance to high-temperature conditions. The Arabidopsis heat-intolerant 5 (hit5) mutant was isolated because it was thermosensitive to prolonged heat incubation at 37°C for 4 d but thermotolerant to sudden heat shock at 44°C for 40 min. Map-based cloning revealed that HIT5 encodes the β-subunit of the protein farnesyltransferase. hit5 was crossed with the aba-insensitive 3 (abi3) mutant, the aba-deficient 3 (aba3) mutant, and the heat shock protein 101 (hsp101) mutant, to characterize the HIT5-mediated heat stress response. hit5/abi3 and hit5/aba3 double mutants had the same temperature-dependent phenotypes as hit5. Additionally, exogenous supplementation of neither ABA nor the ABA synthesis inhibitor fluridone altered the temperature-dependent phenotypes of hit5. The hit5/hsp101 double mutant was still sensitive to prolonged heat incubation, yet its ability to tolerate sudden heat shock was lost. The results suggest that protein farnesylation either positively or negatively affects the ability of plants to survive heat stress, depending on the intensity and duration of high-temperature exposure, in an ABA-independent manner. HSP101 is involved in the hit5-derived heat shock tolerance phenotype.
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Affiliation(s)
- Jia-Rong Wu
- Department of Life Sciences, National Central University, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Lian-Chin Wang
- Department of Life Sciences, National Central University, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Yu-Ru Lin
- Department of Life Sciences, National Central University, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Chi-Pei Weng
- Department of Life Sciences, National Central University, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Ching-Hui Yeh
- Department of Life Sciences, National Central University, Jhong-Li District, Taoyuan City, 32001, Taiwan
| | - Shaw-Jye Wu
- Department of Life Sciences, National Central University, Jhong-Li District, Taoyuan City, 32001, Taiwan
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Zhu M, Monroe JG, Suhail Y, Villiers F, Mullen J, Pater D, Hauser F, Jeon BW, Bader JS, Kwak JM, Schroeder JI, McKay JK, Assmann SM. Molecular and systems approaches towards drought-tolerant canola crops. THE NEW PHYTOLOGIST 2016; 210:1169-1189. [PMID: 26879345 DOI: 10.1111/nph.13866] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 12/14/2015] [Indexed: 06/05/2023]
Abstract
1169 I. 1170 II. 1170 III. 1172 IV. 1176 V. 1181 VI. 1182 1183 References 1183 SUMMARY: Modern agriculture is facing multiple challenges including the necessity for a substantial increase in production to meet the needs of a burgeoning human population. Water shortage is a deleterious consequence of both population growth and climate change and is one of the most severe factors limiting global crop productivity. Brassica species, particularly canola varieties, are cultivated worldwide for edible oil, animal feed, and biodiesel, and suffer dramatic yield loss upon drought stress. The recent release of the Brassica napus genome supplies essential genetic information to facilitate identification of drought-related genes and provides new information for agricultural improvement in this species. Here we summarize current knowledge regarding drought responses of canola, including physiological and -omics effects of drought. We further discuss knowledge gained through translational biology based on discoveries in the closely related reference species Arabidopsis thaliana and through genetic strategies such as genome-wide association studies and analysis of natural variation. Knowledge of drought tolerance/resistance responses in canola together with research outcomes arising from new technologies and methodologies will inform novel strategies for improvement of drought tolerance and yield in this and other important crop species.
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Affiliation(s)
- Mengmeng Zhu
- Biology Department, Pennsylvania State University, University Park, PA, 16802, USA
| | - J Grey Monroe
- Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, 80523, USA
| | - Yasir Suhail
- Department of Biomedical Engineering, The Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Florent Villiers
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, 20740, USA
| | - Jack Mullen
- Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, 80523, USA
| | - Dianne Pater
- Division of Biological Sciences, Cell and Developmental Biology Section, Food and Fuel for the 21st Century Center, University of California San Diego, La Jolla, CA, 92093-016, USA
| | - Felix Hauser
- Division of Biological Sciences, Cell and Developmental Biology Section, Food and Fuel for the 21st Century Center, University of California San Diego, La Jolla, CA, 92093-016, USA
| | - Byeong Wook Jeon
- Biology Department, Pennsylvania State University, University Park, PA, 16802, USA
| | - Joel S Bader
- Department of Biomedical Engineering, The Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
- School of Medicine, The Johns Hopkins University, Baltimore, MD, 21205, USA
| | - June M Kwak
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, 20740, USA
- Center for Plant Aging Research, Institute for Basic Science, Department of New Biology, DGIST, Daegu, 42988, Korea
| | - Julian I Schroeder
- Division of Biological Sciences, Cell and Developmental Biology Section, Food and Fuel for the 21st Century Center, University of California San Diego, La Jolla, CA, 92093-016, USA
| | - John K McKay
- Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, 80523, USA
| | - Sarah M Assmann
- Biology Department, Pennsylvania State University, University Park, PA, 16802, USA
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Chai S, Ge FR, Feng QN, Li S, Zhang Y. PLURIPETALA mediates ROP2 localization and stability in parallel to SCN1 but synergistically with TIP1 in root hairs. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2016; 86:413-25. [PMID: 27037800 DOI: 10.1111/tpj.13179] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 03/20/2016] [Accepted: 03/23/2016] [Indexed: 05/10/2023]
Abstract
Prenylation, the post-translational attachment of prenyl groups to substrate proteins, can affect their distribution and interactomes. Arabidopsis PLURIPETALA (PLP) encodes the shared α subunit of two heterodimeric protein isoprenyltransferases, whose functional loss provides a unique opportunity to study developmental and cellular processes mediated by its prenylated substrates, such as ROP GTPases. As molecular switches, the distribution and activation of ROPs are mediated by various factors, including guanine nucleotide exchange factors, GTPase activating proteins, guanine nucleotide dissociation inhibitors (RhoGDIs), prenylation, and S-acylation. However, how these factors together ensure that dynamic ROP signalling is still obscure. We report here that a loss-of-function allele of PLP resulted in cytoplasmic accumulation of ROP2 in root hairs and reduced its stability. Consequently, two downstream events of ROP signalling, i.e. actin microfilament (MF) organization and the production of reactive oxygen species (ROS), were compromised. Genetic, cytological and biochemical evidence supports an additive interaction between prenylation and RhoGDI1/SCN1 in ROP2 distribution and stability whereas PLP acts synergistically with the protein S-acyl transferase TIP GROWTH DEFECTIVE1 during root hair growth. By using root hair growth as a model system, we uncovered complex interactions among prenylation, RhoGDIs, and S-acylation in dynamic ROP signalling.
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Affiliation(s)
- Sen Chai
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Fu-Rong Ge
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Qiang-Nan Feng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Sha Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Yan Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
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Abstract
Plant growth requires the influx of atmospheric CO2 through stomatal pores, and this carbon uptake for photosynthesis is inherently associated with a large efflux of water vapor. Under water deficit, plants reduce transpiration and are able to improve carbon for water exchange leading to higher water use efficiency (WUE). Whether increased WUE can be achieved without trade-offs in plant growth is debated. The signals mediating the WUE response under water deficit are not fully elucidated but involve the phytohormone abscisic acid (ABA). ABA is perceived by a family of related receptors known to mediate acclimation responses and to reduce transpiration. We now show that enhanced stimulation of ABA signaling via distinct ABA receptors can result in plants constitutively growing at high WUE in the model species Arabidopsis WUE was assessed by three independent approaches involving gravimetric analyses, (13)C discrimination studies of shoots and derived cellulose fractions, and by gas exchange measurements of whole plants and individual leaves. Plants expressing the ABA receptors RCAR6/PYL12 combined up to 40% increased WUE with high growth rates, i.e., are water productive. Water productivity was associated with maintenance of net carbon assimilation by compensatory increases of leaf CO2 gradients, thereby sustaining biomass acquisition. Leaf surface temperatures and growth potentials of plants growing under well-watered conditions were found to be reliable indicators for water productivity. The study shows that ABA receptors can be explored to generate more plant biomass per water transpired, which is a prime goal for a more sustainable water use in agriculture.
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Sah SK, Reddy KR, Li J. Abscisic Acid and Abiotic Stress Tolerance in Crop Plants. FRONTIERS IN PLANT SCIENCE 2016; 7:571. [PMID: 27200044 DOI: 10.3389/fpls.2016.00571/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 04/13/2016] [Indexed: 05/27/2023]
Abstract
Abiotic stress is a primary threat to fulfill the demand of agricultural production to feed the world in coming decades. Plants reduce growth and development process during stress conditions, which ultimately affect the yield. In stress conditions, plants develop various stress mechanism to face the magnitude of stress challenges, although that is not enough to protect them. Therefore, many strategies have been used to produce abiotic stress tolerance crop plants, among them, abscisic acid (ABA) phytohormone engineering could be one of the methods of choice. ABA is an isoprenoid phytohormone, which regulates various physiological processes ranging from stomatal opening to protein storage and provides adaptation to many stresses like drought, salt, and cold stresses. ABA is also called an important messenger that acts as the signaling mediator for regulating the adaptive response of plants to different environmental stress conditions. In this review, we will discuss the role of ABA in response to abiotic stress at the molecular level and ABA signaling. The review also deals with the effect of ABA in respect to gene expression.
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Affiliation(s)
- Saroj K Sah
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University Mississippi State, Mississippi, MS, USA
| | - Kambham R Reddy
- Department of Plant and Soil Sciences, Mississippi State University Mississippi State, Mississippi, MS, USA
| | - Jiaxu Li
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University Mississippi State, Mississippi, MS, USA
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Sah SK, Reddy KR, Li J. Abscisic Acid and Abiotic Stress Tolerance in Crop Plants. FRONTIERS IN PLANT SCIENCE 2016; 7:571. [PMID: 27200044 PMCID: PMC4855980 DOI: 10.3389/fpls.2016.00571] [Citation(s) in RCA: 563] [Impact Index Per Article: 70.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 04/13/2016] [Indexed: 05/17/2023]
Abstract
Abiotic stress is a primary threat to fulfill the demand of agricultural production to feed the world in coming decades. Plants reduce growth and development process during stress conditions, which ultimately affect the yield. In stress conditions, plants develop various stress mechanism to face the magnitude of stress challenges, although that is not enough to protect them. Therefore, many strategies have been used to produce abiotic stress tolerance crop plants, among them, abscisic acid (ABA) phytohormone engineering could be one of the methods of choice. ABA is an isoprenoid phytohormone, which regulates various physiological processes ranging from stomatal opening to protein storage and provides adaptation to many stresses like drought, salt, and cold stresses. ABA is also called an important messenger that acts as the signaling mediator for regulating the adaptive response of plants to different environmental stress conditions. In this review, we will discuss the role of ABA in response to abiotic stress at the molecular level and ABA signaling. The review also deals with the effect of ABA in respect to gene expression.
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Affiliation(s)
- Saroj K. Sah
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State UniversityMississippi State, Mississippi, MS, USA
| | - Kambham R. Reddy
- Department of Plant and Soil Sciences, Mississippi State UniversityMississippi State, Mississippi, MS, USA
| | - Jiaxu Li
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State UniversityMississippi State, Mississippi, MS, USA
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Dutilleul C, Ribeiro I, Blanc N, Nezames CD, Deng XW, Zglobicki P, Palacio Barrera AM, Atehortùa L, Courtois M, Labas V, Giglioli-Guivarc'h N, Ducos E. ASG2 is a farnesylated DWD protein that acts as ABA negative regulator in Arabidopsis. PLANT, CELL & ENVIRONMENT 2016; 39:185-98. [PMID: 26147561 DOI: 10.1111/pce.12605] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/23/2015] [Accepted: 06/24/2015] [Indexed: 05/12/2023]
Abstract
The tagging-via-substrate approach designed for the capture of mammal prenylated proteins was adapted to Arabidopsis cell culture. In this way, proteins are in vivo tagged with an azide-modified farnesyl moiety and captured thanks to biotin alkyne Click-iT® chemistry with further streptavidin-affinity chromatography. Mass spectrometry analyses identified four small GTPases and ASG2 (ALTERED SEED GERMINATION 2), a protein previously associated to the seed germination gene network. ASG2 is a conserved protein in plants and displays a unique feature that associates WD40 domains and tetratricopeptide repeats. Additionally, we show that ASG2 has a C-terminal CaaX-box that is farnesylated in vitro. Protoplast transfections using CaaX prenyltransferase mutants show that farnesylation provokes ASG2 nucleus exclusion. Moreover, ASG2 interacts with DDB1 (DAMAGE DNA BINDING protein 1), and the subcellular localization of this complex depends on ASG2 farnesylation status. Finally, germination and root elongation experiments reveal that asg2 and the farnesyltransferase mutant era1 (ENHANCED RESPONSE TO ABSCISIC ACID (ABA) 1) behave in similar manners when exposed to ABA or salt stress. To our knowledge, ASG2 is the first farnesylated DWD (DDB1 binding WD40) protein related to ABA response in Arabidopsis that may be linked to era1 phenotypes.
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Affiliation(s)
- Christelle Dutilleul
- EA2106 'Biomolécules et Biotechnologies Végétales', UFR des Sciences et Techniques, Université François Rabelais de Tours, Tours, F-37200, France
| | - Iliana Ribeiro
- EA2106 'Biomolécules et Biotechnologies Végétales', UFR des Sciences et Techniques, Université François Rabelais de Tours, Tours, F-37200, France
| | - Nathalie Blanc
- EA2106 'Biomolécules et Biotechnologies Végétales', UFR des Sciences et Techniques, Université François Rabelais de Tours, Tours, F-37200, France
| | - Cynthia D Nezames
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT, 06520-8104, USA
| | - Xing Wang Deng
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT, 06520-8104, USA
| | - Piotr Zglobicki
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, 30-387, Poland
| | - Ana María Palacio Barrera
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellín, Colombia
| | - Lucia Atehortùa
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellín, Colombia
| | - Martine Courtois
- EA2106 'Biomolécules et Biotechnologies Végétales', UFR des Sciences et Techniques, Université François Rabelais de Tours, Tours, F-37200, France
| | - Valérie Labas
- INRA, UMR85 Physiologie de la Reproduction et des Comportements, UMR CNRS 7247, UFR, IFC, Plate-forme d'Analyse Intégrative des Biomolécules, Laboratoire de Spectrométrie de Masse, Nouzilly, F-37380, France
| | - Nathalie Giglioli-Guivarc'h
- EA2106 'Biomolécules et Biotechnologies Végétales', UFR des Sciences et Techniques, Université François Rabelais de Tours, Tours, F-37200, France
| | - Eric Ducos
- EA2106 'Biomolécules et Biotechnologies Végétales', UFR des Sciences et Techniques, Université François Rabelais de Tours, Tours, F-37200, France
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Shi K, Li X, Zhang H, Zhang G, Liu Y, Zhou Y, Xia X, Chen Z, Yu J. Guard cell hydrogen peroxide and nitric oxide mediate elevated CO2 -induced stomatal movement in tomato. THE NEW PHYTOLOGIST 2015; 208:342-53. [PMID: 26308648 DOI: 10.1111/nph.13621] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 07/30/2015] [Indexed: 05/18/2023]
Abstract
Climate change as a consequence of increasing atmospheric CO2 influences plant photosynthesis and transpiration. Although the involvement of stomata in plant responses to elevated CO2 has been well established, the underlying mechanism of elevated CO2 -induced stomatal movement remains largely unknown. We used diverse techniques, including laser scanning confocal microscopy, transmission electron microscopy, biochemical methodologies and gene silencing to investigate the signaling pathway for elevated CO2 -induced stomatal movement in tomato (Solanum lycopersicum). Elevated CO2 -induced stomatal closure was dependent on the production of RESPIRATORY BURST OXIDASE 1 (RBOH1)-mediated hydrogen peroxide (H2 O2 ) and NITRATE REDUCTASE (NR)-mediated nitric oxide (NO) in guard cells in an abscisic acid (ABA)-independent manner. Silencing of OPEN STOMATA 1 (OST1) compromised the elevated CO2 -induced accumulation of H2 O2 and NO, upregulation of SLOW ANION CHANNEL ASSOCIATED 1 (SLAC1) gene expression and reduction of stomatal aperture, whereas silencing of RBOH1 or NR had no effects on the expression of OST1. Our results demonstrate that as critical signaling molecules, RBOH1-dependent H2 O2 and NR-dependent NO act downstream of OST1 that regulate SLAC1 expression and elevated CO2 -induced stomatal movement. This information is crucial to deepen the understanding of CO2 signaling pathway in guard cells.
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Affiliation(s)
- Kai Shi
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Xin Li
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
| | - Huan Zhang
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Guanqun Zhang
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Yaru Liu
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Yanhong Zhou
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Xiaojian Xia
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Zhixiang Chen
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
- Department of Botany & Plant Pathology, Purdue University, West Lafayette, IN, 47907-2054, USA
| | - Jingquan Yu
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, 866 Yuhangtang Road, Hangzhou, 310058, China
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Alter S, Bader KC, Spannagl M, Wang Y, Bauer E, Schön CC, Mayer KFX. DroughtDB: an expert-curated compilation of plant drought stress genes and their homologs in nine species. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION 2015; 2015:bav046. [PMID: 25979979 PMCID: PMC4433318 DOI: 10.1093/database/bav046] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 04/21/2015] [Indexed: 02/01/2023]
Abstract
Plants are sessile and therefore exposed to a number of biotic and abiotic stresses. Drought is the major abiotic stress restricting plant growth worldwide. A number of genes involved in drought stress response have already been characterized, mainly in the model species Arabidopsis thaliana and Oryza sativa. However, with the aim to produce drought tolerant crop varieties, it is of importance to identify the respective orthologs for each species. We have developed DroughtDB, a manually curated compilation of molecularly characterized genes that are involved in drought stress response. DroughtDB includes information about the originally identified gene, its physiological and/or molecular function and mutant phenotypes and provides detailed information about computed orthologous genes in nine model and crop plant species including maize and barley. All identified orthologs are interlinked with the respective reference entry in MIPS/PGSB PlantsDB, which allows retrieval of additional information like genome context and sequence information. Thus, DroughtDB is a valuable resource and information tool for researchers working on drought stress and will facilitate the identification, analysis and characterization of genes involved in drought stress tolerance in agriculturally important crop plants. Database URL:http://pgsb.helmholtz-muenchen.de/droughtdb/
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Affiliation(s)
- Svenja Alter
- Plant Breeding, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising, Germany, Department of Plant Genome and Systems Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany and College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Kai C Bader
- Plant Breeding, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising, Germany, Department of Plant Genome and Systems Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany and College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Manuel Spannagl
- Plant Breeding, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising, Germany, Department of Plant Genome and Systems Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany and College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Yu Wang
- Plant Breeding, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising, Germany, Department of Plant Genome and Systems Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany and College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Eva Bauer
- Plant Breeding, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising, Germany, Department of Plant Genome and Systems Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany and College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Chris-Carolin Schön
- Plant Breeding, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising, Germany, Department of Plant Genome and Systems Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany and College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Klaus F X Mayer
- Plant Breeding, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising, Germany, Department of Plant Genome and Systems Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany and College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia Plant Breeding, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising, Germany, Department of Plant Genome and Systems Biology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany and College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
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Xu DB, Gao SQ, Ma YZ, Xu ZS, Zhao CP, Tang YM, Li XY, Li LC, Chen YF, Chen M. ABI-like transcription factor gene TaABL1 from wheat improves multiple abiotic stress tolerances in transgenic plants. Funct Integr Genomics 2014; 14:717-30. [PMID: 25344442 DOI: 10.1007/s10142-014-0394-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 08/11/2014] [Accepted: 08/19/2014] [Indexed: 02/06/2023]
Abstract
The phytohormone abscisic acid (ABA) plays crucial roles in adaptive responses of plants to abiotic stresses. ABA-responsive element binding proteins (AREBs) are basic leucine zipper transcription factors that regulate the expression of downstream genes containing ABA-responsive elements (ABREs) in promoter regions. A novel ABI-like (ABA-insensitive) transcription factor gene, named TaABL1, containing a conserved basic leucine zipper (bZIP) domain was cloned from wheat. Southern blotting showed that three copies were present in the wheat genome. Phylogenetic analyses indicated that TaABL1 belonged to the AREB subfamily of the bZIP transcription factor family and was most closely related to ZmABI5 in maize and OsAREB2 in rice. Expression of TaABL1 was highly induced in wheat roots, stems, and leaves by ABA, drought, high salt, and low temperature stresses. TaABL1 was localized inside the nuclei of transformed wheat mesophyll protoplast. Overexpression of TaABL1 enhanced responses of transgenic plants to ABA and hastened stomatal closure under stress, thereby improving tolerance to multiple abiotic stresses. Furthermore, overexpression of TaABL1 upregulated or downregulated the expression of some stress-related genes controlling stomatal closure in transgenic plants under ABA and drought stress conditions, suggesting that TaABL1 might be a valuable genetic resource for transgenic molecular breeding.
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Affiliation(s)
- Dong-Bei Xu
- College of Agriculture, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Yuan F, Yang H, Xue Y, Kong D, Ye R, Li C, Zhang J, Theprungsirikul L, Shrift T, Krichilsky B, Johnson DM, Swift GB, He Y, Siedow JN, Pei ZM. OSCA1 mediates osmotic-stress-evoked Ca2+ increases vital for osmosensing in Arabidopsis. Nature 2014; 514:367-71. [DOI: 10.1038/nature13593] [Citation(s) in RCA: 417] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 06/18/2014] [Indexed: 01/05/2023]
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Wang Y, Chang H, Hu S, Lu X, Yuan C, Zhang C, Wang P, Xiao W, Xiao L, Xue GP, Guo X. Plastid casein kinase 2 knockout reduces abscisic acid (ABA) sensitivity, thermotolerance, and expression of ABA- and heat-stress-responsive nuclear genes. JOURNAL OF EXPERIMENTAL BOTANY 2014; 65:4159-75. [PMID: 24803505 PMCID: PMC4112627 DOI: 10.1093/jxb/eru190] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Plastid casein kinase 2 (CK2) is a major Ser/Thr-specific enzyme for protein phosphorylation in the chloroplast stroma and its kinase activity is regulated by redox signals. To understand the role of CK2 phosphorylation of chloroplast proteins in abiotic stress signalling, an Arabidopsis plastid CK2 (CKA4) knockout mutant was investigated in terms of the plant response to abscisic acid (ABA) and heat stress. CKA4 expression was upregulated by ABA and heat treatment. The cka4 mutant showed reduced sensitivity to ABA during seed germination and seedling growth, and increased stomatal aperture and leaf water loss with a slightly reduced leaf ABA level. The cka4 mutant was more sensitive to heat stress than the wild-type Columbia-0. The expression levels of a number of genes in the ABA regulatory network were reduced in the cka4 mutant. Many heat-upregulated genes (heat-shock factors and heat-shock proteins) were also reduced in the cka4 mutant. The cka4 mutant showed reduced expression levels of plastid-encoded RNA polymerase target genes (atpB and psbA). CKA4 knockout mutation also resulted in a reduction in expression of some critical genes (PTM, ABI4, and PRS1) involved in retrograde signalling from the chloroplast to the nucleus. Similar results were observed in mutant plants with the knockout mutation in both CKA4 and CKA3, which encodes a nuclear CK2 α3 subunit. CKA3 expression was not responsive to ABA and heat stress. These results suggest that CKA4 is an enhancing factor in abiotic stress signalling through modulating the expression of some molecular players in retrograde signalling.
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Affiliation(s)
- Yu Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
| | - Hongping Chang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
| | - Shuai Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
| | - Xiutao Lu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
| | - Congying Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
| | - Chen Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
| | - Ping Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
| | - Wenjun Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
| | - Langtao Xiao
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, PR China
| | - Gang-Ping Xue
- CSIRO Plant Industry, 306 Carmody Road, St Lucia, QLD 4067, Australia
| | - Xinhong Guo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
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