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Hu X, Cheng J, Lu M, Fang T, Zhu Y, Li Z, Wang X, Wang Y, Guo Y, Yang S, Gong Z. Ca 2+-independent ZmCPK2 is inhibited by Ca 2+-dependent ZmCPK17 during drought response in maize. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:1313-1333. [PMID: 38751035 DOI: 10.1111/jipb.13675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 04/16/2024] [Indexed: 07/12/2024]
Abstract
Calcium oscillations are induced by different stresses. Calcium-dependent protein kinases (CDPKs/CPKs) are one major group of the plant calcium decoders that are involved in various processes including drought response. Some CPKs are calcium-independent. Here, we identified ZmCPK2 as a negative regulator of drought resistance by screening an overexpression transgenic maize pool. We found that ZmCPK2 does not bind calcium, and its activity is mainly inhibited during short term abscisic acid (ABA) treatment, and dynamically changed in prolonged treatment. Interestingly, ZmCPK2 interacts with and is inhibited by calcium-dependent ZmCPK17, a positive regulator of drought resistance, which is activated by ABA. ZmCPK17 could prevent the nuclear localization of ZmCPK2 through phosphorylation of ZmCPK2T60. ZmCPK2 interacts with and phosphorylates and activates ZmYAB15, a negative transcriptional factor for drought resistance. Our results suggest that drought stress-induced Ca2+ can be decoded directly by ZmCPK17 that inhibits ZmCPK2, thereby promoting plant adaptation to water deficit.
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Affiliation(s)
- Xiaoying Hu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jinkui Cheng
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Minmin Lu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Tingting Fang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yujuan Zhu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiqing Wang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yu Wang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuhua Yang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhizhong Gong
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
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He Z, Shang X, Wang X, Xing Y, Zhang T, Yun J. The contribution of Ca and Mg to the accumulation of amino acids in maize: from the response of physiological and biochemical processes. BMC PLANT BIOLOGY 2024; 24:579. [PMID: 38890571 PMCID: PMC11186291 DOI: 10.1186/s12870-024-05287-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 06/11/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND The quality of maize kernels is significantly enhanced by amino acids, which are the fundamental building blocks of proteins. Meanwhile, calcium (Ca) and magnesium (Mg), as important nutrients for maize growth, are vital in regulating the metabolic pathways and enzyme activities of amino acid synthesis. Therefore, our study analyzed the response process and changes of amino acid content, endogenous hormone content, and antioxidant enzyme activity in kernels to the coupling addition of sugar alcohol-chelated Ca and Mg fertilizers with spraying on maize. RESULT (1) The coupled addition of Ca and Mg fertilizers increased the Ca and Mg content, endogenous hormone components (indole-3-acetic acid, IAA; gibberellin, GA; zeatin riboside, ZR) content, antioxidant enzyme activity, and amino acid content of maize kernels. The content of Ca and Mg in kernels increased with the increasing levels of Ca and Mg fertilizers within a certain range from the filling to the wax ripening stage, and significantly positively correlated with antioxidant enzyme activities. (2) The contents of IAA, GA, and ZR continued to rise, and the activities of superoxide dismutase (SOD) and catalase (CAT) were elevated, which effectively enhanced the ability of cells to resist oxidative damage, promoted cell elongation and division, and facilitated the growth and development of maize. However, the malondialdehyde (MDA) content increased consistently, which would attack the defense system of the cell membrane plasma to some extent. (3) Leucine (LEU) exhibited the highest percentage of essential amino acid components and a gradual decline from the filling to the wax ripening stage, with the most substantial beneficial effect on essential amino acids. (4) CAT and SOD favorably governed essential amino acids, while IAA and MDA negatively regulated them. The dominant physiological driving pathway for the synthesis of essential amino acids was "IAA-CAT-LEU", in which IAA first negatively drove CAT activity, and CAT then advantageously controlled LEU synthesis. CONCLUSION These findings provide a potential approach to the physiological and biochemical metabolism of amino acid synthesis, and the nutritional quality enhancement of maize kernel.
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Affiliation(s)
- Zhaoquan He
- School of Life Sciences, Yan'an University, Yan'an, 716000, China.
- Shaanxi Key Laboratory of Chinese Jujube, Yan'an University, Yan'an, 716000, China.
- Key Laboratory of Applied Ecology of Universities in Shaanxi Province on the Loess Plateau, Yan'an University, Yan'an, 716000, China.
| | - Xue Shang
- School of Life Sciences, Yan'an University, Yan'an, 716000, China
- Shaanxi Key Laboratory of Chinese Jujube, Yan'an University, Yan'an, 716000, China
- College of Land Resource and Environment, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Xiukang Wang
- School of Life Sciences, Yan'an University, Yan'an, 716000, China
- Shaanxi Key Laboratory of Chinese Jujube, Yan'an University, Yan'an, 716000, China
- Key Laboratory of Applied Ecology of Universities in Shaanxi Province on the Loess Plateau, Yan'an University, Yan'an, 716000, China
| | - Yingying Xing
- School of Life Sciences, Yan'an University, Yan'an, 716000, China
- Shaanxi Key Laboratory of Chinese Jujube, Yan'an University, Yan'an, 716000, China
- Key Laboratory of Applied Ecology of Universities in Shaanxi Province on the Loess Plateau, Yan'an University, Yan'an, 716000, China
| | - Tonghui Zhang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Jianying Yun
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
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Sati H, Chinchkar AV, Kataria P, Pareek S. The role of phytomelatonin in plant homeostasis, signaling, and crosstalk in abiotic stress mitigation. PHYSIOLOGIA PLANTARUM 2024; 176:e14413. [PMID: 38924553 DOI: 10.1111/ppl.14413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 05/16/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024]
Abstract
In recent years, there has been an increase in the study of phytomelatonin. Having numerous functions in animals, melatonin produced by plants (phytomelatonin) is also a multi-regulatory molecule with great potential in plant physiology and in mitigating abiotic stresses, such as drought, salinity, chilling, heat, chemical contamination, and UV-radiation stress. This review highlights the primary functions of phytomelatonin as an anti-stress molecule against abiotic stress. We discuss the role of phytomelatonin as a master regulator, oxidative stress manager, reactive oxygen species and reactive nitrogen species regulator, and defense compounds inducer. Although there exist a handful of reviews on the crosstalk of phytomelatonin with other signaling molecules like auxin, cytokinin, gibberellin, abscisic acid, ethylene, nitric oxide, jasmonic acid, and salicylic acid, this review looks at studies that have reported a few aspects of phytomelatonin with newly discovered signaling molecules along with classical signaling molecules with relation to abiotic stress tolerance. The research and applications of phytomelatonin with hydrogen sulfide, strigolactones, brassinosteroids, and polyamines are still in their nascent stage but hold a promising scope for the future. Additionally, this review states the recent developments in the signaling of phytomelatonin with nitrogen metabolism and nitrosative stress in plants.
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Affiliation(s)
- Hansika Sati
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat, Haryana, India
| | - Ajay V Chinchkar
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat, Haryana, India
- Global Brand Resources Pvt. Ltd., Gandhidham (Kutch), Gujarat, India
| | - Priyanka Kataria
- Department of Food Science & Technology, Graphic Era (Deemed to be University), Dehradun, Uttarakhand, India
| | - Sunil Pareek
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat, Haryana, India
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Lou X, Su J, Xiong Y, Chen M, Zhang Q, Luan Y, Sun C, Fu Y, Zhang K. Identification of QTLs responsible for culturability, and fine-mapping of QTL qCBT9 related to callus browning derived from Dongxiang common wild rice ( Oryza rufipogon Griff.). MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2024; 44:32. [PMID: 38685957 PMCID: PMC11055834 DOI: 10.1007/s11032-024-01470-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 04/08/2024] [Indexed: 05/02/2024]
Abstract
Compared to japonica, the lower genetic transformation efficiency of indica is a technical bottleneck for rice molecular breeding. Specifically, callus browning frequently occurs during the culture of the elite indica variety 93-11, leading to poor culturability and lower genetic transformation efficiency. Here, 67 QTLs related to culturability were detected using 97 introgression lines (designated as 9DILs) derived from Dongxiang common wild rice (DXCWR, Oryza rufipogon Griff.) with 93-11 genetic background, explaining 4% ~12% of the phenotypic variations. The QTL qCBT9 on chromosome 9 was a primary QTL for reducing callus browning derived from DXCWR. Five 9DILs with light callus browning and high differentiation were screened. We evaluated the callus browning index (CBI) of 100 F2 population crossed of 93-11 and 9DIL71 and the recombinant plants screened from 3270 individuals. The qCBT9 was delimited to a ~148kb region between the markers X16 and X23. RNA-seq analysis of DEGs between 9DIL71 and 93-11 showed three upregulated DEGs (Os09g0526500, Os09g0527900, Os09g0528200,) and three downregulated DEGs (Os09g0526700, Os09g0526800, Os09g0527700) were located in the candidate region of qCBT9. Furthermore, callus browning may be involved in cell senescence and death caused by oxidative stress. The differentiation of indica and japonica in this region suggested that qCBT9 was possibly a vital QTL contributed to better culturability of japonica. Our results laid a foundation for further cloning of the gene for reduced callus browning in O. rufipogon, and also provided a new genetic resource and material basis for improving the culturability and genetic transformation efficiency of cultivated rice. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-024-01470-z.
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Affiliation(s)
- Xin Lou
- National Center for Evaluation of Agricultural Wild Plants (Rice), Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193 China
| | - Jingjing Su
- National Center for Evaluation of Agricultural Wild Plants (Rice), Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193 China
| | - Yuzhu Xiong
- National Center for Evaluation of Agricultural Wild Plants (Rice), Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193 China
| | - Min Chen
- National Center for Evaluation of Agricultural Wild Plants (Rice), Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193 China
| | - Qiaowen Zhang
- Agricultural Technology Extension Center of Dunhua City, Dunhua, 133700 China
| | - Yanfang Luan
- National Center for Evaluation of Agricultural Wild Plants (Rice), Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193 China
| | - Chuanqing Sun
- National Center for Evaluation of Agricultural Wild Plants (Rice), Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193 China
- State Key Laboratory of Plant Physiology and Biochemistry, China Agricultural University, Beijing, 10093 China
| | - Yongcai Fu
- National Center for Evaluation of Agricultural Wild Plants (Rice), Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193 China
| | - Kun Zhang
- National Center for Evaluation of Agricultural Wild Plants (Rice), Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193 China
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Groten K, Yon F, Baldwin IT. Arbuscular mycorrhizal fungi influence the intraspecific competitive ability of plants under field and glasshouse conditions. PLANTA 2023; 258:60. [PMID: 37535207 PMCID: PMC10400695 DOI: 10.1007/s00425-023-04214-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/24/2023] [Indexed: 08/04/2023]
Abstract
MAIN CONCLUSION Nicotiana attenuata's capacity to interact with arbuscular mycorrhizal fungi influences its intraspecific competitive ability under field and glasshouse conditions, but not its overall community productivity. Arbuscular mycorrhizal (AM) fungi can alter the nutrient status and growth of plants, and they can also affect plant-plant, plant-herbivore, and plant-pathogen interactions. These AM effects are rarely studied in populations under natural conditions due to the limitation of non-mycorrhizal controls. Here we used a genetic approach, establishing field and glasshouse communities of AM-harboring Nicotiana attenuata empty vector (EV) plants and isogenic plants silenced in calcium- and calmodulin-dependent protein kinase expression (irCCaMK), and unable to establish AM symbioses. Performance and growth were quantified in communities of the same (monocultures) or different genotypes (mixed cultures) and both field and glasshouse experiments returned similar responses. In mixed cultures, AM-harboring EV plants attained greater stalk lengths, shoot and root biomasses, clearly out-competing the AM fungal-deficient irCCaMK plants, while in monocultures, both genotypes grew similarly. Competitive ability was also reflected in reproductive traits: EV plants in mixed cultures outperformed irCCaMK plants. When grown in monocultures, the two genotypes did not differ in reproductive performance, though total leaf N and P contents were significantly lower independent of the community type. Plant productivity in terms of growth and seed production at the community level did not differ, while leaf nutrient content of phosphorus and nitrogen depended on the community type. We infer that AM symbioses drastically increase N. attenuata's competitive ability in mixed communities resulting in increased fitness for the individuals harboring AM without a net gain for the community.
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Affiliation(s)
- Karin Groten
- Max Planck Institute for Chemical Ecology, Hans-Knoell-Str. 8, 07745, Jena, Germany.
| | - Felipe Yon
- Max Planck Institute for Chemical Ecology, Hans-Knoell-Str. 8, 07745, Jena, Germany
- Instituto de Medicina Tropical, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Ian T Baldwin
- Max Planck Institute for Chemical Ecology, Hans-Knoell-Str. 8, 07745, Jena, Germany
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Wang Q, Shen T, Ni L, Chen C, Jiang J, Cui Z, Wang S, Xu F, Yan R, Jiang M. Phosphorylation of OsRbohB by the protein kinase OsDMI3 promotes H 2O 2 production to potentiate ABA responses in rice. MOLECULAR PLANT 2023; 16:882-902. [PMID: 37029489 DOI: 10.1016/j.molp.2023.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 02/02/2023] [Accepted: 04/02/2023] [Indexed: 05/04/2023]
Abstract
In rice, the Ca2+/calmodulin-dependent protein kinase OsDMI3 is an important positive regulator of abscisic acid (ABA) signaling. In ABA signaling, H2O2 is required for ABA-induced activation of OsDMI3, which in turn increase H2O2 production. However, how OsDMI3 regulates H2O2 production in ABA signaling remains unknown. Here we show that OsRbohB is the main NADPH oxidase involved in ABA-induced H2O2 production and ABA-mediated physiological responses. OsDMI3 directly interacts with and phosphorylates OsRbohB at Ser-191, which is OsDMI3-mediated site-specific phosphorylation in ABA signaling. Further analyses revealed that OsDMI3-mediated OsRbohB Ser-191 phosphorylation positively regulates the activity of NADPH oxidase and the production of H2O2 in ABA signaling, thereby enhancing the sensitivity of seed germination and root growth to ABA and plant tolerance to water stress and oxidative stress. Moreover, we discovered that the OsDMI3-mediated OsRbohB phosphorylation and H2O2 production is dependent on the sucrose non-fermenting 1-related protein kinases SAPK8/9/10, which phosphorylate OsRbohB at Ser-140 in ABA signaling. Taken together, these results not only reveal an important regulatory mechanism that directly activates Rboh for ABA-induced H2O2 production but also uncover the importance of this regulatory mechanism in ABA signaling.
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Affiliation(s)
- Qingwen Wang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Tao Shen
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Lan Ni
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Chao Chen
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jingjing Jiang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhenzhen Cui
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Shuang Wang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Fengjuan Xu
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Runjiao Yan
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingyi Jiang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
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7
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Hamouzová K, Sen MK, Bharati R, Košnarová P, Chawdhery MRA, Roy A, Soukup J. Calcium signalling in weeds under herbicide stress: An outlook. FRONTIERS IN PLANT SCIENCE 2023; 14:1135845. [PMID: 37035053 PMCID: PMC10080077 DOI: 10.3389/fpls.2023.1135845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
The continuous use of herbicides for controlling weeds has led to the evolution of resistance to all major herbicidal modes of action globally. Every year, new cases of herbicide resistance are reported. Resistance is still in progress in many species, which must be stopped before it becomes a worldwide concern. Several herbicides are known to cause stressful conditions that resemble plant abiotic stresses. Variation in intracellular calcium (Ca2+) concentration is a primary event in a wide range of biological processes in plants, including adaptation to various biotic and abiotic stresses. Ca2+ acts as a secondary messenger, connecting various environmental stimuli to different biological processes, especially during stress rejoindering in plants. Even though many studies involving Ca2+ signalling in plants have been published, there have been no studies on the roles of Ca2+ signalling in herbicide stress response. Hence, this mini-review will highlight the possible sensing and molecular communication via Ca2+ signals in weeds under herbicide stress. It will also discuss some critical points regarding integrating the sensing mechanisms of multiple stress conditions and subsequent molecular communication. These signalling responses must be addressed in the future, enabling researchers to discover new herbicidal targets.
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Affiliation(s)
- Katerina Hamouzová
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Madhab Kumar Sen
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
- Excellent Team for Mitigation (E.T.M.), Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Rohit Bharati
- Department of Crop Sciences and Agroforestry, The Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Pavlína Košnarová
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Md Rafique Ahasan Chawdhery
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Amit Roy
- Excellent Team for Mitigation (E.T.M.), Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Josef Soukup
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
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Kabange NR, Mun BG, Lee SM, Kwon Y, Lee D, Lee GM, Yun BW, Lee JH. Nitric oxide: A core signaling molecule under elevated GHGs (CO 2, CH 4, N 2O, O 3)-mediated abiotic stress in plants. FRONTIERS IN PLANT SCIENCE 2022; 13:994149. [PMID: 36407609 PMCID: PMC9667792 DOI: 10.3389/fpls.2022.994149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Nitric oxide (NO), an ancient molecule with multiple roles in plants, has gained momentum and continues to govern plant biosciences-related research. NO, known to be involved in diverse physiological and biological processes, is a central molecule mediating cellular redox homeostasis under abiotic and biotic stresses. NO signaling interacts with various signaling networks to govern the adaptive response mechanism towards stress tolerance. Although diverging views question the role of plants in the current greenhouse gases (GHGs) budget, it is widely accepted that plants contribute, in one way or another, to the release of GHGs (carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and ozone (O3)) to the atmosphere, with CH4 and N2O being the most abundant, and occur simultaneously. Studies support that elevated concentrations of GHGs trigger similar signaling pathways to that observed in commonly studied abiotic stresses. In the process, NO plays a forefront role, in which the nitrogen metabolism is tightly related. Regardless of their beneficial roles in plants at a certain level of accumulation, high concentrations of CO2, CH4, and N2O-mediating stress in plants exacerbate the production of reactive oxygen (ROS) and nitrogen (RNS) species. This review assesses and discusses the current knowledge of NO signaling and its interaction with other signaling pathways, here focusing on the reported calcium (Ca2+) and hormonal signaling, under elevated GHGs along with the associated mechanisms underlying GHGs-induced stress in plants.
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Affiliation(s)
- Nkulu Rolly Kabange
- Department of Southern Area Crop Science, National Institute of Crop Science Rural Development Administration (RDA), Miryang, South Korea
| | - Bong-Gyu Mun
- Laboratory of Molecular Pathology and Plant Functional Genomics, Kyungpook National University, Daegu, South Korea
| | - So-Myeong Lee
- Department of Southern Area Crop Science, National Institute of Crop Science Rural Development Administration (RDA), Miryang, South Korea
| | - Youngho Kwon
- Department of Southern Area Crop Science, National Institute of Crop Science Rural Development Administration (RDA), Miryang, South Korea
| | - Dasol Lee
- Laboratory of Molecular Pathology and Plant Functional Genomics, Kyungpook National University, Daegu, South Korea
| | - Geun-Mo Lee
- Laboratory of Molecular Pathology and Plant Functional Genomics, Kyungpook National University, Daegu, South Korea
| | - Byung-Wook Yun
- Laboratory of Molecular Pathology and Plant Functional Genomics, Kyungpook National University, Daegu, South Korea
| | - Jong-Hee Lee
- Department of Southern Area Crop Science, National Institute of Crop Science Rural Development Administration (RDA), Miryang, South Korea
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9
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Liu L, Sun Y, Zhang M, Liu R, Wu X, Chen Y, Yuan J. ZmBSK1 positively regulates BR-induced H 2O 2 production via NADPH oxidase and functions in oxidative stress tolerance in maize. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 185:325-335. [PMID: 35738188 DOI: 10.1016/j.plaphy.2022.06.011] [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: 03/28/2022] [Revised: 05/27/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Brassinosteroid (BR) has been indicated to induce the production of hydrogen peroxide (H2O2) in plants in response to various environmental stimuli. However, it remains largely unknown how BR induces H2O2 production. In this study, we found that BR treatment significantly raised the kinase activity of maize (Zea mays L.) brassinosteroid-signaling kinase 1 (ZmBSK1) using the immunoprecipitation kinase assay. ZmBSK1 could modulate the gene expressions and activities of nicotinamide adenine dinucleotide phosphate (NADPH) oxidases (EC 1.6.3.1) to modulate BR-induced H2O2 production. BR could enhance the interaction between ZmBSK1 and maize calcium/calmodulin-dependent protein kinase (ZmCCaMK), a previously identified substrate of ZmBSK1. The BR-induced phosphorylation and kinase activity of ZmCCaMK are dependent on ZmBSK1. Moreover, we showed that ZmBSK1 regulated the NADPH oxidase gene expression and activity via directly phosphorylating ZmCCaMK. Genetic analysis suggested that ZmBSK1-ZmCCaMK module strengthened plant tolerance to oxidative stress induced by exogenous application of H2O2 through improving the activities of antioxidant defense enzyme and alleviating the malondialdehyde (MDA) accumulation and electrolyte leakage rate. In conclusion, these findings provide the new insights of ZmBSK1 functioning in BR-induced H2O2 production and the theoretical supports for breeding stress-tolerant crops.
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Affiliation(s)
- Lei Liu
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Yanchao Sun
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China; College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Meijing Zhang
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Ruixiang Liu
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Xiaming Wu
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Yanping Chen
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China.
| | - Jianhua Yuan
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China.
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Liu L, Sun Y, Di P, Cui Y, Meng Q, Wu X, Chen Y, Yuan J. Overexpression of a Zea mays Brassinosteroid-Signaling Kinase Gene ZmBSK1 Confers Salt Stress Tolerance in Maize. FRONTIERS IN PLANT SCIENCE 2022; 13:894710. [PMID: 35599886 PMCID: PMC9121125 DOI: 10.3389/fpls.2022.894710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/22/2022] [Indexed: 06/15/2023]
Abstract
Salinity has become a crucial environmental factor seriously restricting maize (Zea mays L.) growth, development and productivity. However, how plants respond to salt stress is still poorly understood. In this study, we report that a maize brassinosteroid-signaling kinase gene ZmBSK1 plays a significant role in salt stress response. Expression pattern analysis revealed that the transcript level of ZmBSK1 was upregulated by NaCl treatment both in maize leaves, roots, and stems. Phenotypic and physiological analysis showed that overexpression of ZmBSK1 in maize improved salt tolerance by reducing the malondialdehyde (MDA) content, the percentage of electrolyte leakage, O2 - and H2O2 accumulation under salt stress, relying on the increases of antioxidant defense enzyme activities and proline content. qRT-PCR analysis showed that overexpression of ZmBSK1 also positively modulated the expression levels of reactive oxygen species (ROS)-scavenging and proline biosynthesis-related genes under salt stress. Moreover, immunoprecipitation-mass spectrometry (IP-MS) assay and firefly luciferase complementation imaging (LCI) assay showed that ZmBSK1 could associate with heat shock protein ZmHSP8 and 14-3-3-like protein ZmGF14-6, and their gene expression levels could be significantly induced by NaCl treatment in different maize tissues. Our findings unravel the new function of ZmBSK1 in salt stress response, which provides the theoretical bases for the improvement of maize salt resistance.
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Affiliation(s)
- Lei Liu
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Yanchao Sun
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Pengcheng Di
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Yakun Cui
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Qingchang Meng
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Xiaming Wu
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Yanping Chen
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Jianhua Yuan
- Provincial Key Laboratory of Agrobiology, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, China
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11
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Ni L, Wang Q, Chen C, Wang S, Shen T, Jiang J, Cui Z, Li K, Yang Q, Jiang M. OsDMI3-mediated OsUXS3 phosphorylation improves oxidative stress tolerance by modulating OsCATB protein abundance in rice. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:1087-1101. [PMID: 35348292 DOI: 10.1111/jipb.13255] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/27/2022] [Indexed: 06/14/2023]
Abstract
Calcium (Ca2+ )/calmodulin (CaM)-dependent protein kinase (CCaMK) is an important positive regulator of antioxidant defenses and tolerance against oxidative stress. However, the underlying molecular mechanisms are largely unknown. Here, we report that the rice (Oryza sativa) CCaMK (OsDMI3) physically interacts with and phosphorylates OsUXS3, a cytosol-localized UDP-xylose synthase. Genetic and biochemical evidence demonstrated that OsUXS3 acts downstream of OsDMI3 to enhance the oxidative stress tolerance conferred by higher catalase (CAT) activity. Indeed, OsUXS3 interacted with CAT isozyme B (OsCATB), and this interaction was required to increase OsCATB protein abundance under oxidative stress conditions. Furthermore, we showed that OsDMI3 phosphorylates OsUXS3 on residue Ser-245, thereby further promoting the interaction between OsUXS3 and OsCATB. Our results indicate that OsDMI3 promotes the association of OsUXS3 with OsCATB to enhance CAT activity under oxidative stress. These findings reveal OsUXS3 as a direct target of OsDMI3 and demonstrate its involvement in antioxidant defense.
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Affiliation(s)
- Lan Ni
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qingwen Wang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chao Chen
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shuang Wang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tao Shen
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jingjing Jiang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhenzhen Cui
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kaiyue Li
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qiqing Yang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mingyi Jiang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha, 410128, China
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12
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Kleist TJ, Bortolazzo A, Keyser ZP, Perera AM, Irving TB, Venkateshwaran M, Atanjaoui F, Tang RJ, Maeda J, Cartwright HN, Christianson ML, Lemaux PG, Luan S, Ané JM. Stress-associated developmental reprogramming in moss protonemata by synthetic activation of the common symbiosis pathway. iScience 2022; 25:103754. [PMID: 35146383 PMCID: PMC8819110 DOI: 10.1016/j.isci.2022.103754] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 12/22/2021] [Accepted: 01/07/2022] [Indexed: 11/19/2022] Open
Abstract
Symbioses between angiosperms and rhizobia or arbuscular mycorrhizal fungi are controlled through a conserved signaling pathway. Microbe-derived, chitin-based elicitors activate plant cell surface receptors and trigger nuclear calcium oscillations, which are decoded by a calcium/calmodulin-dependent protein kinase (CCaMK) and its target transcription factor interacting protein of DMI3 (IPD3). Genes encoding CCaMK and IPD3 have been lost in multiple non-mycorrhizal plant lineages yet retained among non-mycorrhizal mosses. Here, we demonstrated that the moss Physcomitrium is equipped with a bona fide CCaMK that can functionally complement a Medicago loss-of-function mutant. Conservation of regulatory phosphosites allowed us to generate predicted hyperactive forms of Physcomitrium CCaMK and IPD3. Overexpression of synthetically activated CCaMK or IPD3 in Physcomitrium led to abscisic acid (ABA) accumulation and ectopic development of brood cells, which are asexual propagules that facilitate escape from local abiotic stresses. We therefore propose a functional role for Physcomitrium CCaMK-IPD3 in stress-associated developmental reprogramming.
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Affiliation(s)
- Thomas J. Kleist
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
- Department of Plant Biology, Carnegie Institute for Science, Stanford, CA 94305, USA
- Institute for Molecular Physiology, Department of Biology, Heinrich Heine University, Düsseldorf 40225, Germany
- Corresponding author
| | - Anthony Bortolazzo
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, WI 53706, USA
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Zachary P. Keyser
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Adele M. Perera
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Thomas B. Irving
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | | | - Fatiha Atanjaoui
- Institute for Molecular Physiology, Department of Biology, Heinrich Heine University, Düsseldorf 40225, Germany
| | - Ren-Jie Tang
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Junko Maeda
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Heather N. Cartwright
- Department of Plant Biology, Carnegie Institute for Science, Stanford, CA 94305, USA
| | - Michael L. Christianson
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Peggy G. Lemaux
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Sheng Luan
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Jean-Michel Ané
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI 53706, USA
- Corresponding author
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13
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Huang X, Huang L, Zhao X, Jia J, Zhang G, Zhang M, Jiang M. A J-Protein OsDjC46 Interacts with ZFP36 to Participate in ABA-Mediated Antioxidant Defense in Rice. Antioxidants (Basel) 2022; 11:antiox11020207. [PMID: 35204090 PMCID: PMC8868554 DOI: 10.3390/antiox11020207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 02/04/2023] Open
Abstract
ZFP36 has been shown to be involved in ABA-induced antioxidant defense and enhance rice tolerance to drought, salt stress and oxidative stress. Using ZFP36 as bait, a yeast two-hybrid system was used to obtain the interacting protein OsDjC46, which belongs to heat shock protein and usually exists in the form of molecular chaperone, was identified. Further Co-IP (co-immunoprecipitation), BiFC (bimolecular fluorescence complement) and GST (glutathione-S-transferase) pull-down experiments verified that ZFP36 interacted with OsDjC46 in vivo and in vitro. Heat shock protein has been shown to increase plant resistance to stresses, but whether OsDjC46 was a key factor in plant response to various stresses has not been reported. Here, various stimuli, such as abscisic acid (ABA), hydrogen peroxidase (H2O2), polyethylene (PEG) and sodium chloride (NaCl) markedly induced the expression of OsDjC46 in the seedlings. Overexpression of OsDjC46 in rice can enhance the tolerance to salinity and drought; in contrast, knockout of OsDjC46 rice plants was more sensitive to salt stress and drought. Further investigation revealed that OsDjC46 could participate in regulating the expression and activities of antioxidant of SOD and CAT under drought and salt stress. Taken together, these findings reveal a novel function of OsDjC46 in adjusting ABA-induced antioxidant defense.
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Affiliation(s)
- Xingxiu Huang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (X.H.); (L.H.); (X.Z.); (J.J.); (G.Z.); (M.Z.)
| | - Liping Huang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (X.H.); (L.H.); (X.Z.); (J.J.); (G.Z.); (M.Z.)
- International Research Center for Environmental Membrane Biology, Foshan University, Foshan 528000, China
| | - Xixi Zhao
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (X.H.); (L.H.); (X.Z.); (J.J.); (G.Z.); (M.Z.)
| | - Jing Jia
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (X.H.); (L.H.); (X.Z.); (J.J.); (G.Z.); (M.Z.)
| | - Gang Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (X.H.); (L.H.); (X.Z.); (J.J.); (G.Z.); (M.Z.)
| | - Mengyao Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (X.H.); (L.H.); (X.Z.); (J.J.); (G.Z.); (M.Z.)
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (X.H.); (L.H.); (X.Z.); (J.J.); (G.Z.); (M.Z.)
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Correspondence: ; Tel.: +86-025-84396372
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14
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Wu F, Huang H, Peng M, Lai Y, Ren Q, Zhang J, Huang Z, Yang L, Rensing C, Chen L. Adaptive Responses of Citrus grandis Leaves to Copper Toxicity Revealed by RNA-Seq and Physiology. Int J Mol Sci 2021; 22:ijms222112023. [PMID: 34769452 PMCID: PMC8585100 DOI: 10.3390/ijms222112023] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/24/2021] [Accepted: 10/29/2021] [Indexed: 01/29/2023] Open
Abstract
Copper (Cu)-toxic effects on Citrus grandis growth and Cu uptake, as well as gene expression and physiological parameters in leaves were investigated. Using RNA-Seq, 715 upregulated and 573 downregulated genes were identified in leaves of C. grandis seedlings exposed to Cu-toxicity (LCGSEC). Cu-toxicity altered the expression of 52 genes related to cell wall metabolism, thus impairing cell wall metabolism and lowering leaf growth. Cu-toxicity downregulated the expression of photosynthetic electron transport-related genes, thus reducing CO2 assimilation. Some genes involved in thermal energy dissipation, photorespiration, reactive oxygen species scavenging and cell redox homeostasis and some antioxidants (reduced glutathione, phytochelatins, metallothioneins, l-tryptophan and total phenolics) were upregulated in LCGSEC, but they could not protect LCGSEC from oxidative damage. Several adaptive responses might occur in LCGSEC. LCGSEC displayed both enhanced capacities to maintain homeostasis of Cu via reducing Cu uptake by leaves and preventing release of vacuolar Cu into the cytoplasm, and to improve internal detoxification of Cu by accumulating Cu chelators (lignin, reduced glutathione, phytochelatins, metallothioneins, l-tryptophan and total phenolics). The capacities to maintain both energy homeostasis and Ca homeostasis might be upregulated in LCGSEC. Cu-toxicity increased abscisates (auxins) level, thus stimulating stomatal closure and lowering water loss (enhancing water use efficiency and photosynthesis).
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15
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Zhao L, Yan J, Xiang Y, Sun Y, Zhang A. ZmWRKY104 Transcription Factor Phosphorylated by ZmMPK6 Functioning in ABA-Induced Antioxidant Defense and Enhance Drought Tolerance in Maize. BIOLOGY 2021; 10:biology10090893. [PMID: 34571770 PMCID: PMC8467104 DOI: 10.3390/biology10090893] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 11/30/2022]
Abstract
Simple Summary Current knowledge about the downstream substrate proteins of MAPKs is still limited. Our study screened a new WRKY IIa transcription factor as the substrate protein of ZmMPK6, and its phosphorylation at Thr-59 is critical to the role of ZmWRKY104 in ABA-induced antioxidant defense. Moreover, overexpression ZmWRKY104 in maize enhances the drought tolerance of transgenic plants. These findings define a mechanism for the function of ZmWRKY104 phosphorylated by ZmMPK6 in ABA-induced antioxidant defense and drought tolerance. Abstract Mitogen-activated protein kinase (MAPK) cascades are primary signaling pathways involved in various signaling pathways triggered by abiotic and biotic stresses in plants. The downstream substrate proteins of MAPKs in maize, however, are still limited. Here, we screened a WRKY IIa transcription factor (TF) in maize (Zeamays L.), ZmWRKY104, and found that it is a substrate of ZmMPK6. ZmWRKY104 physically interacts with ZmMPK6 in vitro and in vivo. Liquid chromatography–tandem mass spectrometry (LC-MS/MS) analysis results showed that threonine-59 (Thr-59, T59) was the major phosphorylation site of ZmWRKY104 by ZmMPK6. Subcellular localization analysis suggested that ZmWRKY104 acts in the nucleus and that ZmMPK6 acts in the nucleus and cytoplasmic membrane in the cytosol. Functional analysis revealed that the role of ZmWRKY104 in ABA-induced antioxidant defense depends on ZmMPK6. Moreover, overexpression of ZmWRKY104 in maize can enhance drought tolerance and relieve drought-induced oxidative damage in transgenic lines. The above results help define the mechanism of the function of ZmWRKY104 phosphorylated by ZmMPK6 in ABA-induced antioxidant defense and drought tolerance in maize.
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Affiliation(s)
- Lili Zhao
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.Z.); (J.Y.); (Y.X.); (Y.S.)
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.Z.); (J.Y.); (Y.X.); (Y.S.)
| | - Yang Xiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.Z.); (J.Y.); (Y.X.); (Y.S.)
| | - Yue Sun
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.Z.); (J.Y.); (Y.X.); (Y.S.)
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.Z.); (J.Y.); (Y.X.); (Y.S.)
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Correspondence: ; Tel.: +86-25-8439-9078
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16
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Iqbal N, Umar S, Khan NA, Corpas FJ. Crosstalk between abscisic acid and nitric oxide under heat stress: exploring new vantage points. PLANT CELL REPORTS 2021; 40:1429-1450. [PMID: 33909122 DOI: 10.1007/s00299-021-02695-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/05/2021] [Indexed: 05/22/2023]
Abstract
Heat stress adversely affects plants growth potential. Global warming is reported to increase in the intensity, frequency, and duration of heatwaves, eventually affecting ecology, agriculture and economy. With an expected increase in average temperature by 2-3 °C over the next 30-50 years, crop production is facing a severe threat to sub-optimum growth conditions. Abscisic acid (ABA) and nitric oxide (NO) are growth regulators that are involved in the adaptation to heat stress by affecting each other and changing the adaptation process. The interaction between these molecules has been discussed in various studies in general or under stress conditions; however, regarding high temperature, their interaction has little been worked out. In the present review, the focus is shifted on the role of these molecules under heat stress emphasizing the different possible interactions between ABA and NO as both regulate stomatal closure and other molecules including hydrogen peroxide (H2O2), hydrogen sulfide (H2S), antioxidants, proline, glycine betaine, calcium (Ca2+) and heat shock protein (HSP). Exploring the crosstalk between ABA and NO with other molecules under heat stress will provide us with a comprehensive knowledge of plants mechanism of heat tolerance which could be useful to develop heat stress-resistant varieties.
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Affiliation(s)
- Noushina Iqbal
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India.
| | - Shahid Umar
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Nafees A Khan
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, 18080, Granada, Spain.
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17
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Chen M, Ni L, Chen J, Sun M, Qin C, Zhang G, Zhang A, Jiang M. Rice calcium/calmodulin-dependent protein kinase directly phosphorylates a mitogen-activated protein kinase kinase to regulate abscisic acid responses. THE PLANT CELL 2021; 33:1790-1812. [PMID: 33630095 PMCID: PMC8254507 DOI: 10.1093/plcell/koab071] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/15/2021] [Indexed: 05/05/2023]
Abstract
Calcium (Ca2+)/calmodulin (CaM)-dependent protein kinase (CCaMK) is an important positive regulator of abscisic acid (ABA) and abiotic stress signaling in plants and is believed to act upstream of mitogen-activated protein kinase (MAPK) in ABA signaling. However, it is unclear how CCaMK activates MAPK in ABA signaling. Here, we show that OsDMI3, a rice (Oryza sativa) CCaMK, directly interacts with and phosphorylates OsMKK1, a MAPK kinase (MKK) in rice, in vitro and in vivo. OsDMI3 was found to directly phosphorylate Thr-25 in the N-terminus of OsMKK1, and this Thr-25 phosphorylation is OsDMI3-specific in ABA signaling. The activation of OsMKK1 and its downstream kinase OsMPK1 is dependent on Thr-25 phosphorylation of OsMKK1 in ABA signaling. Moreover, ABA treatment induces phosphorylation in the activation loop of OsMKK1, and the two phosphorylations, in the N-terminus and in the activation loop, are independent. Further analyses revealed that OsDMI3-mediated phosphorylation of OsMKK1 positively regulates ABA responses in seed germination, root growth, and tolerance to both water stress and oxidative stress. Our results indicate that OsMKK1 is a direct target of OsDMI3, and OsDMI3-mediated phosphorylation of OsMKK1 plays an important role in activating the MAPK cascade and ABA signaling.
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Affiliation(s)
- Min Chen
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Lan Ni
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jing Chen
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Manman Sun
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Caihua Qin
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Gang Zhang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Aying Zhang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingyi Jiang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha 410128, China
- Author for correspondence:
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18
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Liu L, Xiang Y, Yan J, Di P, Li J, Sun X, Han G, Ni L, Jiang M, Yuan J, Zhang A. BRASSINOSTEROID-SIGNALING KINASE 1 phosphorylating CALCIUM/CALMODULIN-DEPENDENT PROTEIN KINASE functions in drought tolerance in maize. THE NEW PHYTOLOGIST 2021; 231:695-712. [PMID: 33864702 DOI: 10.1111/nph.17403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/06/2021] [Indexed: 05/08/2023]
Abstract
Drought stress seriously limits crop productivity. Although studies have been carried out, it is still largely unknown how plants respond to drought stress. Here we find that drought treatment can enhance the phosphorylation activity of brassinosteroid-signaling kinase 1 (ZmBSK1) in maize (Zea mays). Our genetic studies reveal that ZmBSK1 positively affects drought tolerance in maize plants. ZmBSK1 localizes in plasma membrane, interacts with calcium/calmodulin (Ca2+ /CaM)-dependent protein kinase (ZmCCaMK), and phosphorylates ZmCCaMK. Ser-67 is a crucial phosphorylation site of ZmCCaMK by ZmBSK1. Drought stress enhances not only the interaction between ZmBSK1 and ZmCCaMK but also the phosphorylation of Ser-67 in ZmCCaMK by ZmBSK1. Furthermore, Ser-67 phosphorylation in ZmCCaMK regulates its Ca2+ /CaM binding, autophosphorylation and transphosphorylation activity, and positively affects its function in drought tolerance in maize. Our results reveal an important role for ZmBSK1 in drought tolerance and suggest a direct regulatory mode of ZmBSK1 phosphorylating ZmCCaMK.
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Affiliation(s)
- Lei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- Institute of Food Crops, Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Yang Xiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Pengcheng Di
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jing Li
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiujuan Sun
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Gaoqiang Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lan Ni
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jianhua Yuan
- Institute of Food Crops, Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
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19
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Identification and expression of DoCCaMK during Sebacina sp. symbiosis of Dendrobium officinale. Sci Rep 2020; 10:9733. [PMID: 32546714 PMCID: PMC7298032 DOI: 10.1038/s41598-020-66616-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 05/22/2020] [Indexed: 02/03/2023] Open
Abstract
Dendrobium officinale Kimura et Migo is a famous precious medicinal plant in China. Seed and seedling were cultivated with the mycorrhizal fungus Sebacina sp. CCaMK was initially cloned from D. officinale based on a SSH cDNA library of symbiotically germinated seeds with Sebacina sp. Phylogenetic analysis was performed among DoCCaMK and other CCaMKs. The particle bombardment technique was used to visualize DoCCaMK-GFP. qRT-PCR and western blot analysis were conducted to determine the tissue expression patterns of DoCCaMK with (SGS) and without (UGS) Sebacina sp. Furthermore, the effect of KN-93 on CCaMK expression was also examined. Using NMT the net Ca2+ fluxes and the CCaMK concentration were measured during D. officinale seed germination. DoCCaMK had the highest homology with Lilium longiflorum CCaMK. The DoCCaMK-GFP protein localized in the nucleus and cell membrane. CCaMK expression was significantly upregulated after symbiosis with Sebacina sp. KN-93 could be used as an inhibitor of CCaMK to inhibit D. officinale seed germination. Ca2+ influx and the concentration of the CCaMK in the SGS group was significantly more than that of the UGS group. The characterization of CCaMK provides certain genetic evidence for the involvement of this gene during seed germination and mycorrhizal cultivation in D. officinale.
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20
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Liu L, Han T, Liu W, Han G, Di P, Yu X, Yan J, Zhang A. Thr420 and Ser454 of ZmCCaMK play a crucial role in brassinosteroid-induced antioxidant defense in maize. Biochem Biophys Res Commun 2020; 525:537-542. [PMID: 32113680 DOI: 10.1016/j.bbrc.2020.02.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 02/12/2020] [Indexed: 12/15/2022]
Abstract
Calcium/calmodulin-dependent protein kinase (CCaMK) has been shown to play important roles in brassinosteroid (BR)-induced antioxidant defense and enhancing the tolerance of plants to drought stress. The autophosphorylation of CCaMK is a key step for the activation of CCaMK, thus promoting substrate phosphorylation. However, how CCaMK autophosphorylation function in BR-induced antioxidant defense is not known yet. Here, seven potential autophosphorylation sites of ZmCCaMK were identified using mass spectroscopy (liquid chromatography-tandem mass spectrometry [LC-MS/MS]) analysis. The transient gene expression analysis in maize protoplasts showed that Thr420 and Ser454 of ZmCCaMK were important for BR-induced antioxidant defense. Furthermore, Thr420 and Ser454 of ZmCCaMK were crucial for improving drought tolerance and alleviating drought induced oxidative damage of plants via overexpressing various mutant versions of ZmCCaMK in tobacco (Nicotiana tabacum). Mutations of Thr420 and Ser454 in ZmCCaMK substantially blocked the autophosphorylation and substrate phosphorylation of ZmCCaMK in vitro. Taken together, our results demonstrate that Thr420 and Ser454 of ZmCCaMK are crucial for BR-induced antioxidant defense and drought tolerance through modulating the autophosphorylation and substrate phosphorylation activities of ZmCCaMK.
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Affiliation(s)
- Lei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Tong Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Weijuan Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Gaoqiang Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Pengcheng Di
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Xiaoyun Yu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
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21
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Ni L, Fu X, Zhang H, Li X, Cai X, Zhang P, Liu L, Wang Q, Sun M, Wang QW, Zhang A, Zhang Z, Jiang M. Abscisic Acid Inhibits Rice Protein Phosphatase PP45 via H 2O 2 and Relieves Repression of the Ca 2+/CaM-Dependent Protein Kinase DMI3. THE PLANT CELL 2019; 31:128-152. [PMID: 30538152 PMCID: PMC6391686 DOI: 10.1105/tpc.18.00506] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 10/01/2018] [Accepted: 11/30/2018] [Indexed: 05/05/2023]
Abstract
In plants, Ca2+/calmodulin-dependent protein kinase (CCaMK) is a positive regulator of abscisic acid (ABA) responses, including root growth, antioxidant defense, and tolerance of both water stress and oxidative stress. However, the underlying molecular mechanisms are poorly understood. Here, we show a direct interaction between DMI3 (Doesn't Make Infections 3), a rice (Oryza sativa) CCaMK and PP45, a type 2C protein phosphatase in rice (PP2C). This interaction involves the CaM binding domain of DMI3 and the PP2C domain of PP45. In the absence of ABA, PP45 directly inactivates DMI3 by dephosphorylating Thr-263 in DMI3. However, in the presence of ABA, ABA-induced H2O2 production by the NADPH oxidases RbohB/E inhibits the activity of PP45 not only by inhibiting the expression of PP45 but also by oxidizing Cys-350 and Cys-428 residues to form PP45 intermolecular dimers. ABA-induced oxidation of Cys-350 and Cys-428 in PP45 blocked the interaction between PP45 and DMI3 and substantially prevented PP45-mediated inhibition in DMI3 activity. Genetic analysis indicated that PP45 is an important negative regulator of ABA signaling. These results reveal important pathways for the inhibition of DMI3 under the basal state and for its ABA-induced activation in rice.
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Affiliation(s)
- Lan Ni
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaopu Fu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Huan Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Xi Li
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiang Cai
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Panpan Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Lei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Qingwen Wang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Manman Sun
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Qian-Wen Wang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhengguang Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha 410128, China
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22
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Zhang H, Zhang Y, Deng C, Deng S, Li N, Zhao C, Zhao R, Liang S, Chen S. The Arabidopsis Ca 2+-Dependent Protein Kinase CPK12 Is Involved in Plant Response to Salt Stress. Int J Mol Sci 2018; 19:ijms19124062. [PMID: 30558245 PMCID: PMC6321221 DOI: 10.3390/ijms19124062] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 11/22/2022] Open
Abstract
CDPKs (Ca2+-Dependent Protein Kinases) are very important regulators in plant response to abiotic stress. The molecular regulatory mechanism of CDPKs involved in salt stress tolerance remains unclear, although some CDPKs have been identified in salt-stress signaling. Here, we investigated the function of an Arabidopsis CDPK, CPK12, in salt-stress signaling. The CPK12-RNA interference (RNAi) mutant was much more sensitive to salt stress than the wild-type plant GL1 in terms of seedling growth. Under NaCl treatment, Na+ levels in the roots of CPK12-RNAi plants increased and were higher than levels in GL1 plants. In addition, the level of salt-elicited H2O2 production was higher in CPK12-RNAi mutants than in wild-type GL1 plants after NaCl treatment. Collectively, our results suggest that CPK12 is required for plant adaptation to salt stress.
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Affiliation(s)
- Huilong Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Yinan Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Chen Deng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Shurong Deng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Nianfei Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Chenjing Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Rui Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Shan Liang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China.
| | - Shaoliang Chen
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
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23
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Wu S, Hu C, Tan Q, Zhao X, Xu S, Xia Y, Sun X. Nitric oxide acts downstream of abscisic acid in molybdenum-induced oxidative tolerance in wheat. PLANT CELL REPORTS 2018; 37:599-610. [PMID: 29340785 DOI: 10.1007/s00299-018-2254-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 01/05/2018] [Indexed: 05/22/2023]
Abstract
Our study first reveals that Mo mediates oxidative tolerance through ABA signaling. Moreover, NO acts downstream of ABA signaling in Mo-induced oxidative tolerance in wheat under drought stress. Nitric oxide (NO) is related to the improvement of molybdenum (Mo)-induced oxidative tolerance. While the function of Mo in abscisic acid (ABA) synthesis and in mediating oxidative tolerance by the interaction of ABA and NO remain to be studied. The -Mo and +Mo treatment-cultivated wheat was separated and subsequently was pretreated with AO inhibitor, ABA synthesis inhibitor, exogenous ABA, NO scavenger, NO donor or their combinations under polyethylene glycol 6000 (PEG)-stimulated drought stress (PSD). The AO activity and ABA content were increased by Mo in wheat under PSD, however, AO inhibitor decreased AO activity, correspondingly reduced ABA accumulation, suggesting that AO involves in the regulation of Mo-induced ABA synthesis. Mo enhanced activities and expressions of antioxidant enzyme, while these effects of Mo were reversed by AO inhibitor and ABA synthesis inhibitor due to the decrease of ABA content, but regained by exogenous ABA, indicating that Mo induces oxidative tolerance through ABA. Moreover, NO scavenger inhibited activities of antioxidant enzyme caused by Mo and exogenous ABA, but the inhibitions were eliminated by NO donor, indicating that NO is involved in ABA pathway in the regulation of Mo-induced oxidative tolerance in wheat under PSD. Finally, we proposed a scheme for the mechanism of Mo-induced oxidative tolerance.
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Affiliation(s)
- Songwei Wu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural University, Wuhan, China
| | - Chengxiao Hu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural University, Wuhan, China
| | - Qiling Tan
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural University, Wuhan, China
| | - Xiaohu Zhao
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural University, Wuhan, China
| | - Shoujun Xu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural University, Wuhan, China
| | - Yitao Xia
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural University, Wuhan, China
| | - Xuecheng Sun
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural University, Wuhan, China.
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24
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Corpas FJ, Barroso JB. Calmodulin antagonist affects peroxisomal functionality by disrupting both peroxisomal Ca 2+ and protein import. J Cell Sci 2018; 131:jcs.201467. [PMID: 28183730 DOI: 10.1242/jcs.201467] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 02/03/2017] [Indexed: 12/21/2022] Open
Abstract
Ca2+ is a second messenger in many physiological and phytopathological processes. Peroxisomes are subcellular compartments with an active oxidative and nitrosative metabolism. Previous studies have demonstrated that peroxisomal nitric oxide (NO) generation is dependent on Ca2+ and calmodulin (CaM). Here, we used Arabidopsis thaliana transgenic seedlings expressing cyan fluorescent protein (CFP) containing a type 1 peroxisomal-targeting signal motif (PTS1; CFP-PTS1), which enables peroxisomes to be visualized in vivo, and also used a cell-permeable fluorescent probe for Ca2+ Analysis by confocal laser-scanning microscopy (CLSM) enabled us to visualize the presence of endogenous Ca2+ in the peroxisomes of both roots and guard cells. The presence of Ca2+ in peroxisomes and the import of CFP-PTS1 are drastically disrupted by both CaM antagonist and glutathione (GSH). Furthermore, the activity of three peroxisomal enzymes (catalase, glycolate oxidase and hydroxypyruvate reductase) containing PTS1 was clearly affected in these conditions, with a decrease of between 41 and 51%. In summary, data show that Ca2+ and CaM are strictly necessary for protein import and normal functionality of peroxisomal enzymes, including antioxidant and photorespiratory enzymes, as well as for NO production.
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Affiliation(s)
- Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/Profesor Albareda 1, Granada E-18008, Spain
| | - Juan B Barroso
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Biochemistry and Molecular Biology, Campus 'Las Lagunillas', University of Jaén, Jaén E-23071, Spain
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25
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Kharbech O, Houmani H, Chaoui A, Corpas FJ. Alleviation of Cr(VI)-induced oxidative stress in maize (Zea mays L.) seedlings by NO and H 2S donors through differential organ-dependent regulation of ROS and NADPH-recycling metabolisms. JOURNAL OF PLANT PHYSIOLOGY 2017; 219:71-80. [PMID: 29040900 DOI: 10.1016/j.jplph.2017.09.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/16/2017] [Accepted: 09/30/2017] [Indexed: 05/21/2023]
Abstract
Chromium (Cr) contamination in soil is a growing concern in relation to sustainable agricultural production and food safety. Nitric oxide (NO) and, more recently, hydrogen sulfide (H2S) are considered to be new signalling molecules with biotechnological applications in the agronomical sector. Using 9-day-old maize (Zea mays) seedlings exposed to 200μM Cr(VI), the potential mitigating effects of exogenous NO and H2S on chromium-induced stress in maize seedlings were investigated in roots, cotyledons and coleoptiles. Analysis of Cr content, lipid peroxidation, antioxidant enzymes (catalase and superoxide dismutase isozymes), peroxisomal H2O2-producing glycolate oxidase and the main NADPH-regenerating system revealed that chromium causes oxidative stress, leading to a general increase in these activities in coleptiles and roots, with the latter organ being the most affected. However, cotyledons behaved in an opposite manner. Moreover, exogenous applications of NO and H2S to Cr-stressed maize seedlings triggered a significant response, involving the virtual restoration of the values for all these activities to those observed in unstressed seedlings, although their specific impact on ROS and NADPH-recycling metabolisms depends on the seedling organ involved. Taken together, the data indicate that gas transmitters, NO and H2S, which act as a defence against the negative effects of hexavalent chromium contamination, are alternative compounds with potential biotechnological applications.
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Affiliation(s)
- Oussama Kharbech
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Apartado 419, E-18080 Granada, Spain; Plant Toxicology and Molecular Biology of Microorganisms, Faculty of Sciences of Bizerta (Carthage University), 7021 Zarzouna, Tunisia
| | - Hayet Houmani
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Apartado 419, E-18080 Granada, Spain; Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, PO Box 901, 2050 Hammam-Lif, Tunisia
| | - Abdelilah Chaoui
- Plant Toxicology and Molecular Biology of Microorganisms, Faculty of Sciences of Bizerta (Carthage University), 7021 Zarzouna, Tunisia
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Apartado 419, E-18080 Granada, Spain.
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26
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Yuan P, Jauregui E, Du L, Tanaka K, Poovaiah BW. Calcium signatures and signaling events orchestrate plant-microbe interactions. CURRENT OPINION IN PLANT BIOLOGY 2017; 38:173-183. [PMID: 28692858 DOI: 10.1016/j.pbi.2017.06.003] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 06/07/2017] [Accepted: 06/08/2017] [Indexed: 05/20/2023]
Abstract
Calcium (Ca2+) acts as an essential second messenger connecting the perception of microbe signals to the establishment of appropriate immune and symbiotic responses in plants. Accumulating evidence suggests that plants distinguish different microorganisms through plasma membrane-localized pattern recognition receptors. The particular recognition events are encoded into Ca2+ signatures, which are sensed by diverse intracellular Ca2+ binding proteins. The Ca2+ signatures are eventually decoded to distinct downstream responses through transcriptional reprogramming of the defense or symbiosis-related genes. Recent observations further reveal that Ca2+-mediated signaling is also involved in negative regulation of plant immunity. This review is intended as an overview of Ca2+ signaling during immunity and symbiosis, including Ca2+ responses in the nucleus and cytosol.
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Affiliation(s)
- Peiguo Yuan
- Laboratory of Molecular Plant Science, Department of Horticulture, Washington State University, Pullman, WA 99164-6414, USA
| | - Edgard Jauregui
- Laboratory of Molecular Plant Science, Department of Horticulture, Washington State University, Pullman, WA 99164-6414, USA
| | - Liqun Du
- Laboratory of Molecular Plant Science, Department of Horticulture, Washington State University, Pullman, WA 99164-6414, USA; College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China.
| | - Kiwamu Tanaka
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA
| | - B W Poovaiah
- Laboratory of Molecular Plant Science, Department of Horticulture, Washington State University, Pullman, WA 99164-6414, USA.
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27
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Chakraborty N, Chandra S, Acharya K. Biochemical basis of improvement of defense in tomato plant against Fusarium wilt by CaCl 2. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2017; 23:581-596. [PMID: 28878497 PMCID: PMC5567711 DOI: 10.1007/s12298-017-0450-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 05/09/2017] [Accepted: 05/12/2017] [Indexed: 05/24/2023]
Abstract
The objective of this study was to investigate the effectiveness of calcium chloride (CaCl2), as potential elicitor, on tomato plants against Fusarium oxysporum f. sp. lycopersici. Foliar application of CaCl2 showed significant reduction of wilt incidence after challenge inoculation. Increased production of defense and antioxidant enzymes was observed in elicitor treated sets over control. Simultaneously, altered amount of phenolic acids were analyzed spectrophotometrically and by using high performance liquid chromatography. Significant induction of defense-related genes expressions was measured by semi-quantitative RT-PCR. Greater lignifications by microscopic analysis were also recorded in elicitor treated plants. Simultaneously, generation of nitric oxide (NO) in elicitor treated plants was confirmed by spectrophotometrically and microscopically by using membrane permeable fluorescent dye. Furthermore, plants treated with potential NO donor and NO modulators showed significant alteration of all those aforesaid defense molecules. Transcript analysis of nitrate reductase and calmodulin gene showed positive correlation with elicitor treatment. Furthermore, CaCl2 treatment showed greater seedling vigor index, mean trichome density etc. The result suggests that CaCl2 have tremendous potential to elicit defense responses as well as plant growth in co-relation with NO, which ultimately leads to resistance against the wilt pathogen.
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Affiliation(s)
- Nilanjan Chakraborty
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Calcutta, 700019 India
- Department of Botany, Scottish Church College, Calcutta, 700006 India
| | - Swarnendu Chandra
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Calcutta, 700019 India
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Calcutta, 700019 India
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28
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Fu J, Wu Y, Miao Y, Xu Y, Zhao E, Wang J, Sun H, Liu Q, Xue Y, Xu Y, Hu T. Improved cold tolerance in Elymus nutans by exogenous application of melatonin may involve ABA-dependent and ABA-independent pathways. Sci Rep 2017. [PMID: 28045095 DOI: 10.3906/tar-0407-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023] Open
Abstract
Melatonin is an important secondary messenger that plays a central role in plant growth, as well as abiotic and biotic stress tolerance. However, the underlying physiological and molecular mechanisms of melatonin-mediated cold tolerance, especially interactions between melatonin and other key molecules in the plant stress response, remain unknown. Here, the interrelation between melatonin and abscisic acid (ABA) was investigated in two genotypes of Elymus nutans Griseb., the cold-tolerant Damxung (DX) and the cold-sensitive Gannan (GN) under cold stress. Pre-treatment with exogenous melatonin or ABA alleviated oxidative injury via scavenging ROS, while enhancing both antioxidant enzyme activities and non-enzymatic antioxidant contents. Treatment of fluridone, an ABA biosynthesis inhibitor caused membrane lipid peroxidation and lowered melatonin-induced antioxidant defense responses. It is worth noting that cold stress significantly induced both endogenous melatonin and ABA levels in both genotypes. Application of melatonin increased ABA production, while fluridone significantly suppressed melatonin-induced ABA accumulation. ABA and fluridone pre-treatments failed to affect the endogenous melatonin concentration. Moreover, exogenous melatonin up-regulated the expression of cold-responsive genes in an ABA-independent manner. These results indicate that both ABA-dependent and ABA-independent pathways may contribute to melatonin-induced cold tolerance in E. nutans.
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Affiliation(s)
- Juanjuan Fu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ye Wu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yanjun Miao
- College of Plant Science, Tibet Agriculture and Animal Husbandry College, Linzhi, Tibet, 860000, China
| | - Yamei Xu
- College of Plant Science, Tibet Agriculture and Animal Husbandry College, Linzhi, Tibet, 860000, China
| | - Enhua Zhao
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jin Wang
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Huaien Sun
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qian Liu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yongwei Xue
- Department of grassland ecology, College of Desertification Prevention Engineering, Ningxia Technical College of Wine and Desertification Prevention,Yongning, Yinchuan, 750001, China
| | - Yuefei Xu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Tianming Hu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Improved cold tolerance in Elymus nutans by exogenous application of melatonin may involve ABA-dependent and ABA-independent pathways. Sci Rep 2017; 7:39865. [PMID: 28045095 PMCID: PMC5206618 DOI: 10.1038/srep39865] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 11/28/2016] [Indexed: 11/08/2022] Open
Abstract
Melatonin is an important secondary messenger that plays a central role in plant growth, as well as abiotic and biotic stress tolerance. However, the underlying physiological and molecular mechanisms of melatonin-mediated cold tolerance, especially interactions between melatonin and other key molecules in the plant stress response, remain unknown. Here, the interrelation between melatonin and abscisic acid (ABA) was investigated in two genotypes of Elymus nutans Griseb., the cold-tolerant Damxung (DX) and the cold-sensitive Gannan (GN) under cold stress. Pre-treatment with exogenous melatonin or ABA alleviated oxidative injury via scavenging ROS, while enhancing both antioxidant enzyme activities and non-enzymatic antioxidant contents. Treatment of fluridone, an ABA biosynthesis inhibitor caused membrane lipid peroxidation and lowered melatonin-induced antioxidant defense responses. It is worth noting that cold stress significantly induced both endogenous melatonin and ABA levels in both genotypes. Application of melatonin increased ABA production, while fluridone significantly suppressed melatonin-induced ABA accumulation. ABA and fluridone pre-treatments failed to affect the endogenous melatonin concentration. Moreover, exogenous melatonin up-regulated the expression of cold-responsive genes in an ABA-independent manner. These results indicate that both ABA-dependent and ABA-independent pathways may contribute to melatonin-induced cold tolerance in E. nutans.
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Wu S, Hu C, Tan Q, Xu S, Sun X. Nitric Oxide Mediates Molybdenum-Induced Antioxidant Defense in Wheat under Drought Stress. FRONTIERS IN PLANT SCIENCE 2017; 8:1085. [PMID: 28690625 PMCID: PMC5481953 DOI: 10.3389/fpls.2017.01085] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/06/2017] [Indexed: 05/21/2023]
Abstract
Molybdenum (Mo) has been reported to alleviate drought stress by enhancing antioxidant defense in plants, but the underlying mechanism remains unclear. Here, we hypothesized that Mo mediates nitric oxide (NO)-induced antioxidant defense through Mo-enzymes, particularly by nitrate reductase (NR) in wheat under drought stress. The 30-day-old wheat seedlings cultivated in -Mo (0 μM Mo) and +Mo (1 μM Mo) Hoagland solutions were detached and then pretreated with Mo-enzyme inhibitors, NO scavengers, NO donors or their combinations according to demands of complementary experiment under 10% polyethylene glycol 6000 (PEG)-stimulated drought stress (PSD). Mo supplementation increased the activities and transcripts of antioxidant enzymes, decreased H2O2 and MDA contents, and elevated NO production, implying that Mo-induced antioxidant defense may be related to NO signal. Complementary experiment showed that NO production was induced by Mo, while suppressed by Mo-enzyme inhibitors and NO scavengers, but restored by NO donors, suggesting that Mo-induced increase of NO production may be due to the regulation by Mo-enzymes. Further experiment indicated that the increased activities and transcripts of antioxidant enzymes induced by Mo were suppressed by Mo-enzyme inhibitors and NO scavengers, and NO donors could eliminate their suppressing effects. Moreover, Mo application increased NR activity and inhibitors of Mo-enzymes inhibited NR activity in wheat leaves under PSD, suggesting that NR might involve in the regulation of Mo-induced NO production. These results clearly indicate that NO mediates Mo-induced antioxidant defense at least partially through the regulation of NR.
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Affiliation(s)
- Songwei Wu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural UniversityWuhan, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural UniversityWuhan, China
| | - Chengxiao Hu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural UniversityWuhan, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural UniversityWuhan, China
| | - Qiling Tan
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural UniversityWuhan, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural UniversityWuhan, China
| | - Shoujun Xu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural UniversityWuhan, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural UniversityWuhan, China
| | - Xuecheng Sun
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural UniversityWuhan, China
- Hubei Provincial Engineering Laboratory for New-Type Fertilizers, Huazhong Agricultural UniversityWuhan, China
- *Correspondence: Xuecheng Sun,
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Wu X, Qiao Z, Liu H, Acharya BR, Li C, Zhang W. CML20, an Arabidopsis Calmodulin-like Protein, Negatively Regulates Guard Cell ABA Signaling and Drought Stress Tolerance. FRONTIERS IN PLANT SCIENCE 2017; 8:824. [PMID: 28603528 PMCID: PMC5445667 DOI: 10.3389/fpls.2017.00824] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 05/02/2017] [Indexed: 05/19/2023]
Abstract
Guard cells shrink in response to drought and abscisic acid (ABA), which is caused by efflux of ions that in turn reduces stomatal aperture and improves the plant's ability to retain moisture. Cytosolic free calcium is an essential secondary messenger in guard cell ABA signaling, but the details of this regulatory pathway remain sketchy. Here, the calmodulin-like protein CML20, which has four EF-hand domains and calcium-binding activity in vitro, was found to be a negative regulator of ABA-induced stomatal movement in Arabidopsis. The guard cells of cml20 loss-of-function mutant plants were hypersensitive to both ABA-activated S-type anion currents, and ABA inhibited inward K+ currents than those of wild type. Additional, due to smaller stomatal aperture, cml20 showed less water loss from the leaves than wild type. These phenotypes of CML20 overexpressing plants contrasted with wild type in the opposite direction. In the cml20 mutant, the transcripts of stress responsive genes, such as MYB2, RAB18, ERD10, COR47, and RD29A were up-regulated in response to drought and ABA, while down-regulated of APX2 transcription and higher reactive oxygen species (ROS) accumulation. These observations support the CML20, a functional Ca2+ sensor, is a negative regulator in guard cell ABA signaling.
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Affiliation(s)
- Xiaomeng Wu
- Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong UniversityJinan, China
| | - Zhu Qiao
- Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong UniversityJinan, China
| | - Huiping Liu
- Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong UniversityJinan, China
| | - Biswa R. Acharya
- Donald Danforth Plant Science Center, St. LouisMO, United States
| | - Chunlong Li
- College of Life Science, Jiangsu Normal UniversityXuzhou, China
- *Correspondence: Chunlong Li, Wei Zhang,
| | - Wei Zhang
- Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Science, Shandong UniversityJinan, China
- *Correspondence: Chunlong Li, Wei Zhang,
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Zeng FS, Menardo F, Xue MF, Zhang XJ, Gong SJ, Yang LJ, Shi WQ, Yu DZ. Transcriptome Analyses Shed New Insights into Primary Metabolism and Regulation of Blumeria graminis f. sp. tritici during Conidiation. FRONTIERS IN PLANT SCIENCE 2017; 8:1146. [PMID: 28713408 PMCID: PMC5492466 DOI: 10.3389/fpls.2017.01146] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 06/15/2017] [Indexed: 05/04/2023]
Abstract
Conidia of the obligate biotrophic fungal pathogen Blumeria graminis f. sp. tritici (Bgt) play a vital role in its survival and rapid dispersal. However, little is known about the genetic basis for its asexual reproduction. To uncover the primary metabolic and regulatory events during conidiation, we sequenced the transcriptome of Bgt epiphytic structures at 3 (vegetative hyphae growth), 4 (foot cells initiation), and 5 (conidiophore erection) days post-inoculation (dpi). RNA-seq analyses identified 556 and 404 (combined 685) differentially expressed genes (DEGs) at 4 and 5 dpi compared with their expression levels at 3 dpi, respectively. We found that several genes involved in the conversion from a variety of sugars to glucose, glycolysis, the tricarboxylic acid cycle (TAC), the electron transport chain (ETC), and unsaturated fatty acid oxidation were activated during conidiation, suggesting that more energy supply is required during this process. Moreover, we found that glucose was converted into glycogen, which was accumulated in developing conidiophores, indicating that it could be the primary energy storage molecule in Bgt conidia. Clustering for the expression profiles of 91 regulatory genes showed that calcium (Ca2+), H2O2, and phosphoinositide (PIP) signaling were involved in Bgt conidiation. Furthermore, a strong accumulation of H2O2 in developing conidiophores was detected. Application of EGTA, a Ca2+ chelator, and trifluoperazine dihydrochloride (TFP), a calmodulin (CaM) antagonist, markedly suppressed the generation of H2O2, affected foot cell and conidiophore development and reduced conidia production significantly. These results suggest that Ca2+ and H2O2 signaling play important roles in conidiogenesis and a crosslink between them is present. In addition to some conidiation-related orthologs known in other fungi, such as the velvet complex components, we identified several other novel B. graminis-specific genes that have not been previously found to be implicated in fungal conidiation, reflecting a unique molecular mechanism underlying asexual development of cereal powdery mildews.
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Affiliation(s)
- Fan-Song Zeng
- College of Life Science, Wuhan UniversityWuhan, China
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of AgricultureWuhan, China
- Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural SciencesWuhan, China
| | - Fabrizio Menardo
- Institute of Plant and Microbial Biology, University of ZürichZürich, Switzerland
| | - Min-Feng Xue
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of AgricultureWuhan, China
- Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural SciencesWuhan, China
| | - Xue-Jiang Zhang
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of AgricultureWuhan, China
- Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural SciencesWuhan, China
| | - Shuang-Jun Gong
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of AgricultureWuhan, China
- Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural SciencesWuhan, China
| | - Li-Jun Yang
- College of Life Science, Wuhan UniversityWuhan, China
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of AgricultureWuhan, China
- Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural SciencesWuhan, China
| | - Wen-Qi Shi
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of AgricultureWuhan, China
- Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural SciencesWuhan, China
| | - Da-Zhao Yu
- College of Life Science, Wuhan UniversityWuhan, China
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of AgricultureWuhan, China
- Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural SciencesWuhan, China
- *Correspondence: Da-Zhao Yu,
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Gietler M, Nykiel M, Orzechowski S, Fettke J, Zagdańska B. Proteomic analysis of S-nitrosylated and S-glutathionylated proteins in wheat seedlings with different dehydration tolerances. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 108:507-518. [PMID: 27596017 DOI: 10.1016/j.plaphy.2016.08.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 08/26/2016] [Indexed: 05/27/2023]
Abstract
A loss of dehydration tolerance in wheat seedlings on the fifth day following imbibition is associated with a disturbance in cellular redox homeostasis, as documented by a shift of the reduced/oxidized glutathione ratio to a more oxidized state and a significant increase in the ratio of protein thiols to the total thiol group content. Therefore, the identification and characterization of redox-sensitive proteins are important steps toward understanding the molecular mechanisms of the loss of dehydration tolerance. In the present study, proteins that were differentially expressed between fully turgid (control), dehydrated tolerant (four-day-old) and dehydrated sensitive (six-day-old) wheat seedlings were analysed. Protein spots having at least a significant (p < 0.05) two-fold change in protein abundance were selected by Delta2D as differentially expressed, identified by MALDI-TOF and LC-MS/MS, and classified according to their function. The observed changes in the proteomic patterns of the differentially S-nitrosylated and S-glutathionylated proteins were highly specific in dehydration-tolerant and -sensitive wheat seedlings. The metabolic function of these proteins indicates that dehydration tolerance is mainly related to nucleic acids, protein metabolism, and energy metabolism. It has been proven that leaf-specific thionins BTH6 and DB4, chloroplastic 50S ribosomal protein L16, phospholipase A1-II delta, and chloroplastic thioredoxin M2 are both S-nitrosylated and S-glutathionylated upon water deficiency. Our results revealed the existence of interplay between S-nitrosylation and S-glutathionylation, two redox-regulated protein posttranslational modifications that could enhance plant defence mechanisms and/or facilitate the acclimation of plants to unfavourable environmental conditions.
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Affiliation(s)
- Marta Gietler
- Department of Biochemistry, Faculty of Agriculture and Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776, Warsaw, Poland.
| | - Małgorzata Nykiel
- Department of Biochemistry, Faculty of Agriculture and Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Sławomir Orzechowski
- Department of Biochemistry, Faculty of Agriculture and Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Joerg Fettke
- Biopolymer Analytics, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam-Golm, Germany
| | - Barbara Zagdańska
- Department of Biochemistry, Faculty of Agriculture and Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776, Warsaw, Poland
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Zhu Y, Yan J, Liu W, Liu L, Sheng Y, Sun Y, Li Y, Scheller HV, Jiang M, Hou X, Ni L, Zhang A. Phosphorylation of a NAC Transcription Factor by a Calcium/Calmodulin-Dependent Protein Kinase Regulates Abscisic Acid-Induced Antioxidant Defense in Maize. PLANT PHYSIOLOGY 2016; 171:1651-64. [PMID: 27208250 PMCID: PMC4936550 DOI: 10.1104/pp.16.00168] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 05/03/2016] [Indexed: 05/18/2023]
Abstract
Calcium/calmodulin-dependent protein kinase (CCaMK) has been shown to play an important role in abscisic acid (ABA)-induced antioxidant defense and enhance the tolerance of plants to drought stress. However, its downstream molecular events are poorly understood. Here, we identify a NAC transcription factor, ZmNAC84, in maize (Zea mays), which physically interacts with ZmCCaMK in vitro and in vivo. ZmNAC84 displays a partially overlapping expression pattern with ZmCCaMK after ABA treatment, and H2O2 is required for ABA-induced ZmNAC84 expression. Functional analysis reveals that ZmNAC84 is essential for ABA-induced antioxidant defense in a ZmCCaMK-dependent manner. Furthermore, ZmCCaMK directly phosphorylates Ser-113 of ZmNAC84 in vitro, and Ser-113 is essential for the ABA-induced stimulation of antioxidant defense by ZmCCaMK. Moreover, overexpression of ZmNAC84 in tobacco (Nicotiana tabacum) can improve drought tolerance and alleviate drought-induced oxidative damage of transgenic plants. These results define a mechanism for ZmCCaMK function in ABA-induced antioxidant defense, where ABA-produced H2O2 first induces expression of ZmCCaMK and ZmNAC84 and activates ZmCCaMK. Subsequently, the activated ZmCCaMK phosphorylates ZmNAC84 at Ser-113, thereby inducing antioxidant defense by activating downstream genes.
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Affiliation(s)
- Yuan Zhu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Weijuan Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Lei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Yu Sheng
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Yue Sun
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Yanyun Li
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Henrik Vibe Scheller
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Xilin Hou
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Lan Ni
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (Y.Z., J.Y., W.L., L.L., Y.Sh., Y.S., Y.L., M.J., X.H., L.N., A.Z.);Physical Biosciences Division, Lawrence Berkeley National Laboratory, Joint BioEnergy Institute, Berkeley, California 94720 (H.V.S.);National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China (M.J.); andJiangsu Polytechnic College of Agriculture and Forestry, Engineering and Technology Center for Modern Horticulture, Zhenjiang, Jiangsu, 212400 China (X.H.)
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Niu L, Liao W. Hydrogen Peroxide Signaling in Plant Development and Abiotic Responses: Crosstalk with Nitric Oxide and Calcium. FRONTIERS IN PLANT SCIENCE 2016; 7:230. [PMID: 26973673 PMCID: PMC4777889 DOI: 10.3389/fpls.2016.00230] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 02/11/2016] [Indexed: 05/02/2023]
Abstract
Hydrogen peroxide (H2O2), as a reactive oxygen species, is widely generated in many biological systems. It has been considered as an important signaling molecule that mediates various physiological and biochemical processes in plants. Normal metabolism in plant cells results in H2O2 generation, from a variety of sources. Also, it is now clear that nitric oxide (NO) and calcium (Ca(2+)) function as signaling molecules in plants. Both H2O2 and NO are involved in plant development and abiotic responses. A wide range of evidences suggest that NO could be generated under similar stress conditions and with similar kinetics as H2O2. The interplay between H2O2 and NO has important functional implications to modulate transduction processes in plants. Moreover, close interaction also exists between H2O2 and Ca(2+) in response to development and abiotic stresses in plants. Cellular responses to H2O2 and Ca(2+) signaling systems are complex. There is quite a bit of interaction between H2O2 and Ca(2+) signaling in responses to several stimuli. This review aims to introduce these evidences in our understanding of the crosstalk among H2O2, NO, and Ca(2+) signaling which regulates plant growth and development, and other cellular and physiological responses to abiotic stresses.
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Affiliation(s)
| | - Weibiao Liao
- Department of Ornamental Horticulture, College of Horticulture, Gansu Agricultural UniversityLanzhou, China
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Ma F, Ni L, Liu L, Li X, Zhang H, Zhang A, Tan M, Jiang M. ZmABA2, an interacting protein of ZmMPK5, is involved in abscisic acid biosynthesis and functions. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:771-82. [PMID: 26096642 DOI: 10.1111/pbi.12427] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 04/24/2015] [Accepted: 04/27/2015] [Indexed: 05/08/2023]
Abstract
In maize (Zea mays), the mitogen-activated protein kinase ZmMPK5 has been shown to be involved in abscisic acid (ABA)-induced antioxidant defence and to enhance the tolerance of plants to drought, salt stress and oxidative stress. However, the underlying molecular mechanisms are poorly understood. Here, using ZmMPK5 as bait in yeast two-hybrid screening, a protein interacting with ZmMPK5 named ZmABA2, which belongs to a member of the short-chain dehydrogenase/reductase family, was identified. Pull-down assay and bimolecular fluorescence complementation analysis and co-immunoprecipitation test confirmed that ZmMPK5 interacts with ZmABA2 in vitro and in vivo. Phosphorylation of Ser173 in ZmABA2 by ZmMPK5 was shown to increase the activity of ZmABA2 and the protein stability. Various abiotic stimuli induced the expression of ZmABA2 in leaves of maize plants. Pharmacological, biochemical and molecular biology and genetic analyses showed that both ZmMPK5 and ZmABA2 coordinately regulate the content of ABA. Overexpression of ZmABA2 in tobacco plants was found to elevate the content of ABA, regulate seed germination and root growth under drought and salt stress and enhance the tolerance of tobacco plants to drought and salt stress. These results suggest that ZmABA2 is a direct target of ZmMPK5 and is involved in ABA biosynthesis and functions.
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Affiliation(s)
- Fangfang Ma
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
- College of Agriculture, Shanxi Agricultural University, Taigu, China
| | - Lan Ni
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Libo Liu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xi Li
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Huan Zhang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Aying Zhang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Mingpu Tan
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Mingyi Jiang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
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Zeng H, Xu L, Singh A, Wang H, Du L, Poovaiah BW. Involvement of calmodulin and calmodulin-like proteins in plant responses to abiotic stresses. FRONTIERS IN PLANT SCIENCE 2015; 6:600. [PMID: 26322054 PMCID: PMC4532166 DOI: 10.3389/fpls.2015.00600] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 07/20/2015] [Indexed: 05/18/2023]
Abstract
Transient changes in intracellular Ca(2+) concentration have been well recognized to act as cell signals coupling various environmental stimuli to appropriate physiological responses with accuracy and specificity in plants. Calmodulin (CaM) and calmodulin-like proteins (CMLs) are major Ca(2+) sensors, playing critical roles in interpreting encrypted Ca(2+) signals. Ca(2+)-loaded CaM/CMLs interact and regulate a broad spectrum of target proteins such as channels/pumps/antiporters for various ions, transcription factors, protein kinases, protein phosphatases, metabolic enzymes, and proteins with unknown biochemical functions. Many of the target proteins of CaM/CMLs directly or indirectly regulate plant responses to environmental stresses. Basic information about stimulus-induced Ca(2+) signal and overview of Ca(2+) signal perception and transduction are briefly discussed in the beginning of this review. How CaM/CMLs are involved in regulating plant responses to abiotic stresses are emphasized in this review. Exciting progress has been made in the past several years, such as the elucidation of Ca(2+)/CaM-mediated regulation of AtSR1/CAMTA3 and plant responses to chilling and freezing stresses, Ca(2+)/CaM-mediated regulation of CAT3, MAPK8 and MKP1 in homeostasis control of reactive oxygen species signals, discovery of CaM7 as a DNA-binding transcription factor regulating plant response to light signals. However, many key questions in Ca(2+)/CaM-mediated signaling warrant further investigation. Ca(2+)/CaM-mediated regulation of most of the known target proteins is presumed based on their interaction. The downstream targets of CMLs are mostly unknown, and how specificity of Ca(2+) signaling could be realized through the actions of CaM/CMLs and their target proteins is largely unknown. Future breakthroughs in Ca(2+)/CaM-mediated signaling will not only improve our understanding of how plants respond to environmental stresses, but also provide the knowledge base to improve stress-tolerance of crops.
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Affiliation(s)
- Houqing Zeng
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Luqin Xu
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Amarjeet Singh
- Laboratory of Molecular Plant Science, Department of Horticulture, Washington State University, PullmanWA, USA
| | - Huizhong Wang
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Liqun Du
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - B. W. Poovaiah
- Laboratory of Molecular Plant Science, Department of Horticulture, Washington State University, PullmanWA, USA
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Fu J, Chu X, Sun Y, Miao Y, Xu Y, Hu T. Nitric Oxide Mediates 5-Aminolevulinic Acid-Induced Antioxidant Defense in Leaves of Elymus nutans Griseb. Exposed to Chilling Stress. PLoS One 2015; 10:e0130367. [PMID: 26151364 PMCID: PMC4494807 DOI: 10.1371/journal.pone.0130367] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 05/18/2015] [Indexed: 11/18/2022] Open
Abstract
Nitric oxide (NO) and 5-aminolevulinic acid (ALA) are both extremely important signalling molecules employed by plants to control many aspects of physiology. In the present study, the role of NO in ALA-induced antioxidant defense in leaves of two sources of Elymus nutans Griseb. (Damxung, DX and Zhengdao, ZD) was investigated. Chilling stress enhanced electrolyte leakage, accumulation of malondialdehyde (MDA), hydrogen peroxide (H2O2) and superoxide radical in two E. nutans, which were substantially alleviated by exogenous ALA and NO application. Pretreatment with NO scavenger PTIO or NOS inhibitor L-NNA alone and in combination with ALA induced enhancements in electrolyte leakage and the accumulation of MDA, H2O2 and superoxide radical in leaves of DX and ZD exposed to chilling stress, indicating that the inhibition of NO biosynthesis reduced the chilling resistance of E. nutans and the ALA-enhanced chilling resistance. Further analyses showed that ALA and NO enhanced antioxidant defense and activated plasma membrane (PM) H+-ATPase and decreased the accumulation of ROS induced by chilling stress. A pronounced increase in nitric oxide synthase (NOS) activity and NO release by exogenous ALA treatment was found in chilling-resistant DX plants exposed to chilling stress, while only a little increase was observed in chilling-sensitive ZD. Furthermore, inhibition of NO accumulation by PTIO or L-NNA blocked the protective effect of exogenous ALA, while both exogenous NO treatment and inhibition of endogenous NO accumulation did not induce ALA production. These results suggested that NO might be a downstream signal mediating ALA-induced chilling resistance in E. nutans.
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Affiliation(s)
- Juanjuan Fu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xitong Chu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yongfang Sun
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yanjun Miao
- College of Plant Science, Tibet Agriculture and Animal Husbandry College, Linzhi, Tibet 860000, China
| | - Yuefei Xu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Tianming Hu
- Department of grassland science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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Zhu Y, Liu W, Sheng Y, Zhang J, Chiu T, Yan J, Jiang M, Tan M, Zhang A. ABA Affects Brassinosteroid-Induced Antioxidant Defense via ZmMAP65-1a in Maize Plants. PLANT & CELL PHYSIOLOGY 2015; 56:1442-55. [PMID: 25941233 DOI: 10.1093/pcp/pcv061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 04/22/2015] [Indexed: 05/07/2023]
Abstract
Brassinosteroids (BRs) and ABA co-ordinately regulate water deficit tolerance in maize leaves. ZmMAP65-1a, a maize microtubule-associated protein (MAP) which plays an essential role in BR-induced antioxidant defense, has been characterized previously. However, the interactions among BR, ABA and ZmMAP65-1a in water deficit tolerance remain unexplored. In this study, we demonstrated that ABA was required for BR-induced antioxidant defense via ZmMAP65-1a by using biochemical blocking and ABA biosynthetic mutants. The expression of ZmMAP65-1a in maize leaves and mesophyll protoplasts could be increased under polyethylene glycol- (PEG) stimulated water deficit and ABA treatments. Furthermore, the importance of ABA in the early pathway of BR-induced water deficit tolerance was demonstrated by limiting ABA availability. Blocking ABA biosynthesis biochemically or by a null mutation inhibited the downstream gene expression of ZmMAP65-1a and the activity of ZmMAPK5 in the pathway. It also affected the activities of BR-induced antioxidant defense-related enzymes, namely ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR), superoxide dismutase (SOD) and NADPH oxidase. In addition, combining results from transiently overexpressed or silenced ZmMAP65-1a in mesophyll protoplasts, we discovered that ZmMAP65-1a mediated the ABA-induced gene expression and activities of APX and SOD. Surprisingly, silencing of ZmMAP65-1a in mesophyll protoplasts did not alter the gene expression of ZmCCaMK and vice versa in response to ABA. Taken together, our data indicate that water deficit-induced ABA is a key mediator in BR-induced antioxidant defense via ZmMAP65-1a in maize.
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Affiliation(s)
- Yuan Zhu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Weijuan Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Sheng
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Juan Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Tsanyu Chiu
- Joint BioEnergy Institute and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingpu Tan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
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De Novo Assembly and Characterization of the Transcriptome of the Chinese Medicinal Herb, Gentiana rigescens. Int J Mol Sci 2015; 16:11550-73. [PMID: 26006235 PMCID: PMC4463717 DOI: 10.3390/ijms160511550] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/11/2015] [Accepted: 05/14/2015] [Indexed: 11/17/2022] Open
Abstract
Gentiana rigescens is an important medicinal herb in China. The main validated medicinal component gentiopicroside is synthesized in shoots, but is mainly found in the plant's roots. The gentiopicroside biosynthetic pathway and its regulatory control remain to be elucidated. Genome resources of gentian are limited. Next-generation sequencing (NGS) technologies can aid in supplying global gene expression profiles. In this study we present sequence and transcript abundance data for the root and leaf transcriptome of G. rigescens, obtained using the Illumina Hiseq2000. Over fifty million clean reads were obtained from leaf and root libraries. This yields 76,717 unigenes with an average length of 753 bp. Among these, 33,855 unigenes were identified as putative homologs of annotated sequences in public protein and nucleotide databases. Digital abundance analysis identified 3306 unigenes differentially enriched between leaf and root. Unigenes found in both tissues were categorized according to their putative functional categories. Of the differentially expressed genes, over 130 were annotated as related to terpenoid biosynthesis. This work is the first study of global transcriptome analyses in gentian. These sequences and putative functional data comprise a resource for future investigation of terpenoid biosynthesis in Gentianaceae species and annotation of the gentiopicroside biosynthetic pathway and its regulatory mechanisms.
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Yan J, Guan L, Sun Y, Zhu Y, Liu L, Lu R, Jiang M, Tan M, Zhang A. Calcium and ZmCCaMK are involved in brassinosteroid-induced antioxidant defense in maize leaves. PLANT & CELL PHYSIOLOGY 2015; 56:883-96. [PMID: 25647327 DOI: 10.1093/pcp/pcv014] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Accepted: 01/26/2015] [Indexed: 05/04/2023]
Abstract
Brassinosteroids (BRs) have been shown to enhance stress tolerance by inducing antioxidant defense systems. However, the mechanisms of BR-induced antioxidant defense in plants remain to be determined. In this study, the role of calcium (Ca(2+)) and maize calcium/calmodulin-dependent protein kinase (CCaMK), ZmCCaMK, in BR-induced antioxidant defense, and the relationship between ZmCCaMK and Ca(2+) in BR signaling were investigated. BR treatment led to a significant increase in cytosolic Ca(2+) concentration in protoplasts from maize mesophyll, and Ca(2+) was shown to be required for BR-induced antioxidant defense. Treatment with BR induced increases in gene expression and enzyme activity of ZmCCaMK in maize leaves. Transient overexpression and silencing of ZmCCaMK in maize protoplasts demonstrated that ZmCCaMK was required for BR-induced antioxidant defense. The requirement for CCaMK was further investigated using a loss-of-function mutant of OsCCaMK, the orthologous gene of ZmCCaMK in rice. Consistent with the findings in maize, BR treatment could not induce antioxidant defense in the rice OsCCAMK mutant. Furthermore, Ca(2+) was required for BR-induced gene expression and activation of ZmCCaMK, while ZmCCaMK was shown to enhance the BR-induced increase in cytosolic Ca(2+) concentration. Moreover, our results also showed that ZmCCaMK and H2O2 influenced each other. These results indicate that Ca(2+) works together with ZmCCaMK in BR-induced antioxidant defense, and there are two positive feedback loops between Ca(2+) or H2O2 and ZmCCaMK in BR signaling in maize.
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Affiliation(s)
- Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China These authors contributed equally to this work
| | - Li Guan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China These authors contributed equally to this work
| | - Yue Sun
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yuan Zhu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Lei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Rui Lu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingpu Tan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
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Zhao R, Sun H, Zhao N, Jing X, Shen X, Chen S. The Arabidopsis Ca²⁺-dependent protein kinase CPK27 is required for plant response to salt-stress. Gene 2015; 563:203-14. [PMID: 25791495 DOI: 10.1016/j.gene.2015.03.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 03/08/2015] [Accepted: 03/13/2015] [Indexed: 02/04/2023]
Abstract
Ca(2+)-dependent protein kinases (CDPKs) play vital roles in plant adaptations to environmental challenges. The precise regulatory mechanism of CDPKs in mediating salt stress still remains unclear, although several CDPK members have been identified to be involved in salt stress accumulation in various plants, such as Arabidopsis thaliana and Oryza sativa. Here, we investigated the function of an Arabidopsis CDPK, CPK27, in salt stress-signaling. CPK27 is a membrane-localized protein kinase; its expression was induced by NaCl. cpk27-1, a T-DNA insertion mutant of CPK27, was much more sensitive to salt stress than wild-type plants in terms of seed germination and post-germination seedling growth. In ion-flux assay, cpk27-1 mutants exhibited a lower capacity than wild-type plants to extrude Na(+) and import H(+) after a long-term salt treatment (110mM NaCl for 10days). Moreover, the content of Na(+) was higher and K(+) was lower in cpk27-1 mutants than in wild-type plants under salt stress. In addition, the level of salt-elicited H2O2 production was higher in cpk27-1 mutants than in wild-type plants Col after a short-term NaCl shock and long-term salt treatment. Collectively, our results suggest that CPK27 is required for plant adaptation to salt stress.
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Affiliation(s)
- Rui Zhao
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Huimin Sun
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Nan Zhao
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Xiaoshu Jing
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Xin Shen
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Shaoliang Chen
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
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Samayoa LF, Malvar RA, Olukolu BA, Holland JB, Butrón A. Genome-wide association study reveals a set of genes associated with resistance to the Mediterranean corn borer (Sesamia nonagrioides L.) in a maize diversity panel. BMC PLANT BIOLOGY 2015; 15:35. [PMID: 25652257 PMCID: PMC4340109 DOI: 10.1186/s12870-014-0403-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 12/22/2014] [Indexed: 05/21/2023]
Abstract
BACKGROUND Corn borers are the primary maize pest; their feeding on the pith results in stem damage and yield losses. In this study, we performed a genome-wide association study (GWAS) to identify SNPs associated with resistance to Mediterranean corn borer in a maize diversity panel using a set of more than 240,000 SNPs. RESULTS Twenty five SNPs were significantly associated with three resistance traits: 10 were significantly associated with tunnel length, 4 with stem damage, and 11 with kernel resistance. Allelic variation at each significant SNP was associated with from 6 to 9% of the phenotypic variance. A set of genes containing or physically close to these SNPs are proposed as candidate genes for borer resistance, supported by their involvement in plant defense-related mechanisms in previously published evidence. The linkage disequilibrium decayed (r(2) < 0.10) rapidly within short distance, suggesting high resolution of GWAS associations. CONCLUSIONS Most of the candidate genes found in this study are part of signaling pathways, others act as regulator of expression under biotic stress condition, and a few genes are encoding enzymes with antibiotic effect against insects such as the cystatin1 gene and the defensin proteins. These findings contribute to the understanding the complex relationship between plant-insect interactions.
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Affiliation(s)
- Luis Fernando Samayoa
- Misión Biológica de Galicia, Spanish National Research Council (CSIC), P.O. Box 28, 36080, Pontevedra, Spain.
| | - Rosa Ana Malvar
- Misión Biológica de Galicia, Spanish National Research Council (CSIC), P.O. Box 28, 36080, Pontevedra, Spain.
| | - Bode A Olukolu
- Department of Crop Science, North Carolina State University, Raleigh, North Carolina, 27695, USA.
| | - James B Holland
- Department of Crop Science, North Carolina State University, Raleigh, North Carolina, 27695, USA.
- U.S. Department of Agriculture-Agricultural Research Service, Plant Science Research Unit, Raleigh, North Carolina, 27695, USA.
| | - Ana Butrón
- Misión Biológica de Galicia, Spanish National Research Council (CSIC), P.O. Box 28, 36080, Pontevedra, Spain.
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Wen F, Qin T, Wang Y, Dong W, Zhang A, Tan M, Jiang M. OsHK3 is a crucial regulator of abscisic acid signaling involved in antioxidant defense in rice. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2015; 57:213-28. [PMID: 24912543 DOI: 10.1111/jipb.12222] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 06/07/2014] [Indexed: 05/21/2023]
Abstract
In this study, the role of the rice (Oryza sativa L.) histidine kinase OsHK3 in abscisic acid (ABA)-induced antioxidant defense was investigated. Treatments with ABA, H2 O2 , and polyethylene glycol (PEG) induced the expression of OsHK3 in rice leaves, and H2 O2 is required for ABA-induced increase in the expression of OsHK3 under water stress. Subcellular localization analysis showed that OsHK3 is located in the cytoplasm and the plasma membrane. The transient expression analysis and the transient RNA interference test in rice protoplasts showed that OsHK3 is required for ABA-induced upregulation in the expression of antioxidant enzymes genes and the activities of antioxidant enzymes. Further analysis showed that OsHK3 functions upstream of the calcium/calmodulin-dependent protein kinase OsDMI3 and the mitogen-activated protein kinase OsMPK1 to regulate the activities of antioxidant enzymes in ABA signaling. Moreover, OsHK3 was also shown to regulate the expression of nicotinamide adenine dinucleotide phosphate oxidase genes, OsrbohB and OsrbohE, and the production of H2 O2 in ABA signaling. Our data indicate that OsHK3 play an important role in the regulation of ABA-induced antioxidant defense and in the feedback regulation of H2 O2 production in ABA signaling.
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Affiliation(s)
- Feng Wen
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
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You J, Chan Z. ROS Regulation During Abiotic Stress Responses in Crop Plants. FRONTIERS IN PLANT SCIENCE 2015; 6:1092. [PMID: 26697045 PMCID: PMC4672674 DOI: 10.3389/fpls.2015.01092] [Citation(s) in RCA: 497] [Impact Index Per Article: 55.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 11/20/2015] [Indexed: 05/18/2023]
Abstract
Abiotic stresses such as drought, cold, salt and heat cause reduction of plant growth and loss of crop yield worldwide. Reactive oxygen species (ROS) including hydrogen peroxide (H2O2), superoxide anions (O2 (•-)), hydroxyl radical (OH•) and singlet oxygen ((1)O2) are by-products of physiological metabolisms, and are precisely controlled by enzymatic and non-enzymatic antioxidant defense systems. ROS are significantly accumulated under abiotic stress conditions, which cause oxidative damage and eventually resulting in cell death. Recently, ROS have been also recognized as key players in the complex signaling network of plants stress responses. The involvement of ROS in signal transduction implies that there must be coordinated function of regulation networks to maintain ROS at non-toxic levels in a delicate balancing act between ROS production, involving ROS generating enzymes and the unavoidable production of ROS during basic cellular metabolism, and ROS-scavenging pathways. Increasing evidence showed that ROS play crucial roles in abiotic stress responses of crop plants for the activation of stress-response and defense pathways. More importantly, manipulating ROS levels provides an opportunity to enhance stress tolerances of crop plants under a variety of unfavorable environmental conditions. This review presents an overview of current knowledge about homeostasis regulation of ROS in crop plants. In particular, we summarize the essential proteins that are involved in abiotic stress tolerance of crop plants through ROS regulation. Finally, the challenges toward the improvement of abiotic stress tolerance through ROS regulation in crops are discussed.
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Zhang H, Liu Y, Wen F, Yao D, Wang L, Guo J, Ni L, Zhang A, Tan M, Jiang M. A novel rice C2H2-type zinc finger protein, ZFP36, is a key player involved in abscisic acid-induced antioxidant defence and oxidative stress tolerance in rice. JOURNAL OF EXPERIMENTAL BOTANY 2014; 65:5795-809. [PMID: 25071223 PMCID: PMC4203119 DOI: 10.1093/jxb/eru313] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
C2H2-type zinc finger proteins (ZFPs) have been shown to play important roles in the responses of plants to oxidative and abiotic stresses, and different members of this family might have different roles during stresses. Here a novel abscisic acid (ABA)- and hydrogen peroxide (H₂O₂)-responsive C2H2-type ZFP gene, ZFP36, is identified in rice. The analyses of ZFP36-overexpressing and silenced transgenic rice plants showed that ZFP36 is involved in ABA-induced up-regulation of the expression and the activities of superoxide dismutase (SOD) and ascorbate peroxidase (APX). Overexpression of ZFP36 in rice plants was found to elevate the activities of antioxidant enzymes and to enhance the tolerance of rice plants to water stress and oxidative stress. In contrast, an RNA interference (RNAi) mutant of ZFP36 had lower activities of antioxidant enzymes and was more sensitive to water stress and oxidative stress. ABA-induced H₂O₂ production and ABA-activated mitogen-activated protein kinases (MAPKs) were shown to regulate the expression of ZFP36 in ABA signalling. On the other hand, ZFP36 also regulated the expression of NADPH oxidase genes, the production of H₂O₂, and the expression of OsMPK genes in ABA signalling. These results indicate that ZFP36 is required for ABA-induced antioxidant defence, for the tolerance of rice plants to water stress and oxidative stress, and for the regulation of the cross-talk between NADPH oxidase, H₂O₂, and MAPK in ABA signalling.
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Affiliation(s)
- Hong Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Yanpei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Feng Wen
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Dongmei Yao
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Lu Wang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Jin Guo
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Lan Ni
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Mingpu Tan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, People's Republic of China :
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Abstract
SIGNIFICANCE Production of reactive oxygen species (ROS) and reactive nitrogen species (RNS) occurs rapidly in response to attempted pathogen invasion of potential host plants. Such reduction-oxidation (redox) changes are sensed and transmitted to engage immune function, including the hypersensitive response, a programmed execution of challenged plant cells. RECENT ADVANCES Pathogen elicitors trigger changes in calcium that are sensed by calmodulin, calmodulin-like proteins, and calcium-dependent protein kinases, which activate ROS and RNS production. The ROS and RNS production is compartmentalized within the cell and occurs through multiple routes. Mitogen-activated protein kinase (MAPK) cascades are engaged upstream and downstream of ROS and nitric oxide (NO) production. NO is increasingly recognized as a key signaling molecule, regulating downstream protein function through S-nitrosylation, the addition of an NO moiety to a reactive cysteine thiol. CRITICAL ISSUES How multiple sources of ROS and RNS are coordinated is unclear. The putative protein sensors that detect and translate fluxes in ROS and RNS into differential gene expression are obscure. Protein tyrosine nitration following reaction of peroxynitrite with tyrosine residues has been proposed as another signaling mechanism or as a marker leading to protein degradation, but the reversibility remains to be established. FUTURE DIRECTIONS Research is needed to identify the full spectrum of NO-modified proteins with special emphasis on redox-activated transcription factors and their cognate target genes. A systems approach will be required to uncover the complexities integral to redox regulation of MAPK cascades, transcription factors, and defense genes through the combined effects of calcium, phosphorylation, S-nitrosylation, and protein tyrosine nitration.
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Affiliation(s)
- Debra E Frederickson Matika
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh , Edinburgh, United Kingdom
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Yuan TT, Xu HH, Zhang KX, Guo TT, Lu YT. Glucose inhibits root meristem growth via ABA INSENSITIVE 5, which represses PIN1 accumulation and auxin activity in Arabidopsis. PLANT, CELL & ENVIRONMENT 2014; 37:1338-50. [PMID: 24237322 DOI: 10.1111/pce.12233] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 11/05/2013] [Indexed: 05/18/2023]
Abstract
Glucose functions as a hormone-like signalling molecule that modulates plant growth and development in Arabidopsis thaliana. However, the role of glucose in root elongation remains elusive. Our study demonstrates that high concentrations of glucose reduce the size of the root meristem zone by repressing PIN1 accumulation and thereby reducing auxin levels. In addition, we verified the involvement of ABA INSENSITIVE 5 (ABI5) in this process by showing that abi5-1 is less sensitive to glucose than the wild type, whereas glucose induces ABI5 expression and the inducible overexpression of ABI5 reduces the size of the root meristem zone. Furthermore, the inducible overexpression of ABI5 in PIN1::PIN1-GFP plants reduces the level of PIN1-GFP, but glucose reduces the level of PIN1-GFP to a lesser extent in abi5-1 PIN1::PIN1-GFP plants than in the PIN1::PIN1-GFP control, suggesting that ABI5 is involved in glucose-regulated PIN1 accumulation. Taken together, our data suggest that ABI5 functions in the glucose-mediated inhibition of the root meristem zone by repressing PIN1 accumulation, thus leading to reduced auxin levels in roots.
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Affiliation(s)
- Ting-Ting Yuan
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
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Fan S, Meng Y, Song M, Pang C, Wei H, Liu J, Zhan X, Lan J, Feng C, Zhang S, Yu S. Quantitative phosphoproteomics analysis of nitric oxide-responsive phosphoproteins in cotton leaf. PLoS One 2014; 9:e94261. [PMID: 24714030 PMCID: PMC3979775 DOI: 10.1371/journal.pone.0094261] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 03/14/2014] [Indexed: 11/24/2022] Open
Abstract
Knowledge of phosphorylation events and their regulation is crucial to understanding the functional biology of plant proteins, but very little is currently known about nitric oxide-responsive phosphorylation in plants. Here, we report the first large-scale, quantitative phosphoproteome analysis of cotton (Gossypium hirsutum) treated with sodium nitroprusside (nitric oxide donor) by utilizing the isobaric tag for relative and absolute quantitation (iTRAQ) method. A total of 1315 unique phosphopeptides, spanning 1528 non-redundant phosphorylation sites, were detected from 1020 cotton phosphoproteins. Among them, 183 phosphopeptides corresponding to 167 phosphoproteins were found to be differentially phosphorylated in response to sodium nitroprusside. Several of the phosphorylation sites that we identified, including RQxS, DSxE, TxxxxSP and SPxT, have not, to our knowledge, been reported to be protein kinase sites in other species. The phosphoproteins identified are involved in a wide range of cellular processes, including signal transduction, RNA metabolism, intracellular transport and so on. This study reveals unique features of the cotton phosphoproteome and provides new insight into the biochemical pathways that are regulated by nitric oxide.
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Affiliation(s)
- Shuli Fan
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan Province, China
| | - Yanyan Meng
- Key Laboratory of Cotton Biology and Breeding in the Middle Reaches of the Changjing River, Institute of Economic Crop, Hubei Academy of Agricultural Science, Wuhan, Hubei Province, China
| | - Meizhen Song
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan Province, China
| | - Chaoyou Pang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan Province, China
| | - Hengling Wei
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan Province, China
| | - Ji Liu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan Province, China
- College of Agronomy, Northwest A & F University, Yangling, Shaanxi Province, China
| | - Xianjin Zhan
- Key Laboratory of Cotton Biology and Breeding in the Middle Reaches of the Changjing River, Institute of Economic Crop, Hubei Academy of Agricultural Science, Wuhan, Hubei Province, China
| | - Jiayang Lan
- Key Laboratory of Cotton Biology and Breeding in the Middle Reaches of the Changjing River, Institute of Economic Crop, Hubei Academy of Agricultural Science, Wuhan, Hubei Province, China
| | - Changhui Feng
- Key Laboratory of Cotton Biology and Breeding in the Middle Reaches of the Changjing River, Institute of Economic Crop, Hubei Academy of Agricultural Science, Wuhan, Hubei Province, China
| | - Shengxi Zhang
- Key Laboratory of Cotton Biology and Breeding in the Middle Reaches of the Changjing River, Institute of Economic Crop, Hubei Academy of Agricultural Science, Wuhan, Hubei Province, China
| | - Shuxun Yu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan Province, China
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Limami AM, Diab H, Lothier J. Nitrogen metabolism in plants under low oxygen stress. PLANTA 2014; 239:531-41. [PMID: 24370634 DOI: 10.1007/s00425-013-2015-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 12/14/2013] [Indexed: 05/22/2023]
Abstract
More frequent flooding and waterlogging events due to more heavy precipitation are expected worldwide in the context of climate change. Accordingly, adaptation of plants to oxygen limitation at both cellular and whole plant levels should be investigated thoroughly, that derived knowledge could be taken into account in breeding programs and agronomical practices for saving plant fitness, growth and development even when oxygen availability is low. In the present review, we highlight current knowledge on essential aspects of low oxygen stress-induced changes in nitrogen metabolism. The involvement of two possible pathways for NO production either via the reaction catalyzed by nitrate reductase or at Complex III or IV of the mitochondrial electron transport chain, thus contributing to ATP synthesis via the so-called nitrite-NO respiration, is discussed. NO is proposed to be scavenged by non-symbiotic hemoglobin (Hb) in a Hb/NO cycle, in which NAD(P)H is oxidized for the conversion of NO into NO3(-). The investigation of an additional adaptation to the decrease in oxygen availability via transcriptional and posttranslational regulation of amino acid synthesis pathways, using publicly available transcriptome and translatome data for Arabidopsis thaliana and rice is also discussed.
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Affiliation(s)
- Anis M Limami
- University of Angers, UMR 1345 IRHS, SFR 4207 QUASAV, 2 Bd Lavoisier, 49045, Angers, France,
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