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Pantaleno R, Scuffi D, Schiel P, Schwarzländer M, Costa A, García-Mata C. Mitochondrial ß-Cyanoalanine Synthase Participates in flg22-Induced Stomatal Immunity. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39288437 DOI: 10.1111/pce.15155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 07/26/2024] [Accepted: 09/02/2024] [Indexed: 09/19/2024]
Abstract
Plants regulate gas exchange with the environment and modulate transpirational water flow through guard cells, which set the aperture of the stomatal pores. External and internal stimuli are detected by guard cells and integrated into a signalling network that modulate turgor pressure and, hence, pore size. Pathogen-associated molecular patterns are among the stimuli that induce stomatal closure, to prevent pathogen entry through the pores, and this response, also referred to as stomatal immunity, is one of the hallmarks of PAMP-triggered immunity. While reactive oxygen species (ROS)-mediated signalling plays a key role in stomatal immunity, also the gasotransmitter hydrogen sulphide (H2S) interacts with key components of the guard cell signalling network to induce stomatal closure. While the role of H2S, produced by the main cytosolic source L-cysteine desulfhydrase 1, has been already investigated, there are additional enzymatic sources that synthesize H2S in different subcellular compartments. Their function has remained enigmatic, however. In this work, we elucidate the involvement of the mitochondrial H2S source, β-cyanoalanine synthase CAS-C1, on stomatal immunity induced by the bacterial PAMP flagellin (flg22). We show that cas-c1 plants are impaired to induce flg22-triggered stomatal closure and apoplastic ROS production, while they are more susceptible to bacterial surface inoculation. Moreover, mitochondrial H2S donor AP39 induced stomatal closure in an RBOHD-dependent manner, while depletion of endogenous H2S, impaired RBOHD-mediated apoplastic ROS production. In addition, pharmacological disruption of mitochondrial electron transport chain activity, affected stomatal closure produced by flg22, indicating its participation in the stomatal immunity response. Our findings add evidence to the emerging realization that intracellular organelles play a decisive role in orchestrating stomatal signalling and immune responses and suggest that mitochondrial-derived H2S is an important player of the stomatal immunity signalling network.
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Affiliation(s)
- Rosario Pantaleno
- Instituto de Investigaciones Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Denise Scuffi
- Instituto de Investigaciones Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Paula Schiel
- Instituto de Investigaciones Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Markus Schwarzländer
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Münster, Germany
| | - Alex Costa
- Department of Biosciences, University of Milan, Milan, Italy
| | - Carlos García-Mata
- Instituto de Investigaciones Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
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2
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Qin C, Fan X, Fang Q, Yu H, Ni L, Jiang M. Abscisic acid-induced H 2O 2 production positively regulates the activity of SAPK8/9/10 through oxidation of the type one protein phosphatase OsPP47. THE NEW PHYTOLOGIST 2024. [PMID: 39219038 DOI: 10.1111/nph.20092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 08/09/2024] [Indexed: 09/04/2024]
Abstract
Subclass III sucrose nonfermenting1-related protein kinase 2s (SnRK2s) are positive regulators of abscisic acid (ABA) signaling and abiotic stress responses. However, the underlying activation mechanisms of osmotic stress/ABA-activated protein kinase 8/9/10 (SAPK8/9/10) of rice (Oryza sativa) subclass III SnRK2s in ABA signaling remain to be elucidated. In this study, we employed biochemical, molecular biology, cell biology, and genetic approaches to identify the molecular mechanism by which OsPP47, a type one protein phosphatase in rice, regulates SAPK8/9/10 activity in ABA signaling. We found that OsPP47 not only physically interacted with SAPK8/9/10 but also interacted with ABA receptors PYLs. OsPP47 negatively regulated ABA sensitivity in seed germination and root growth. In the absence of ABA, OsPP47 directly inactivated SAPK8/9/10 by dephosphorylation. In the presence of ABA, ABA-bound OsPYL2 formed complexes with OsPP47 and inhibited its phosphatase activity, partially releasing the inhibition of SAPK8/9/10. SAPK8/9/10-mediated H2O2 production inhibited OsPP47 activity by oxidizing Cys-116 and Cys-256 to form OsPP47 oligomers, resulting in not only preventing the OsPP47-SAPK8/9/10 interaction but also blocking the inhibition of SAPK8/9/10 activity by OsPP47. Our results reveal novel pathways for the inhibition of SAPK8/9/10 in the basal state and for the activation of SAPK8/9/10 induced by ABA in rice.
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Affiliation(s)
- Caihua Qin
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xing Fan
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qianqian Fang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Honghua Yu
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lan Ni
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mingyi Jiang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
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3
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Coutinho ID, Facchinatto WM, Mertz-Henning LM, Viana AC, Marin SR, Santagneli SH, Nepomuceno AL, Colnago LA. NMR Fingerprinting of Conventional and Genetically Modified Soybean Plants with AtAREB1 Transcription Factors. ACS OMEGA 2024; 9:32651-32661. [PMID: 39100338 PMCID: PMC11292650 DOI: 10.1021/acsomega.4c01796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 06/09/2024] [Accepted: 06/12/2024] [Indexed: 08/06/2024]
Abstract
Drought stress impacts soybean yields and physiological processes. However, the insertion of the activated form of the AtAREB1 gene in the soybean cultivar BR16, which is sensitive to water deficit, improved the drought response of the genetically modified plants. Thus, in this study, we used 1H NMR in solution and solid-state NMR to investigate the response of genetically modified soybean overexpressing AtAREB1 under water deficiency conditions. We achieved that drought-tolerant soybean yields high content of amino acids isoleucine, leucine, threonine, valine, proline, glutamate, aspartate, asparagine, tyrosine, and phenylalanine after 12 days of drought stress conditions, as compared to drought-sensitive soybean under the same conditions. Specific target compounds, including sugars, organic acids, and phenolic compounds, were identified as involved in controlling sensitive soybean during the vegetative stage. Solid-state NMR was used to study the impact of drought stress on starch and cellulose contents in different soybean genotypes. The findings provide insights into the metabolic adjustments of soybean overexpressing AREB transcription factors in adapting to dry climates. This study presents NMR techniques for investigating the metabolome of transgenic soybean plants in response to the water deficit. The approach allowed for the identification of physiological and morphological changes in drought-resistant and drought-tolerant soybean tissues. The findings indicate that drought stress significantly alters micro- and macromolecular metabolism in soybean plants. Differential responses were observed among roots and leaves as well as drought-tolerant and drought-sensitive cultivars, highlighting the complex interplay between overexpressed transcription factors and drought stress in soybean plants.
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Affiliation(s)
- Isabel Duarte Coutinho
- Embrapa
Instrumentation, Brazilian Agricultural
Research Corporation, St. XV de Novembro 1452, P.O. Box 741, 13560-970 São Carlos, São Paulo, Brazil
| | - William Marcondes Facchinatto
- Embrapa
Instrumentation, Brazilian Agricultural
Research Corporation, St. XV de Novembro 1452, P.O. Box 741, 13560-970 São Carlos, São Paulo, Brazil
| | - Liliane Marcia Mertz-Henning
- Embrapa
Soybean, Brazilian Agricultural Research
Corporation, HWY Carlos João Strass, Warta District, P.O.
Box 4006, 86085-981 Londrina, Paraná, Brazil
| | - Américo
José Carvalho Viana
- Embrapa
Soybean, Brazilian Agricultural Research
Corporation, HWY Carlos João Strass, Warta District, P.O.
Box 4006, 86085-981 Londrina, Paraná, Brazil
| | - Silvana Regina
Rockenbach Marin
- Embrapa
Soybean, Brazilian Agricultural Research
Corporation, HWY Carlos João Strass, Warta District, P.O.
Box 4006, 86085-981 Londrina, Paraná, Brazil
| | - Silvia Helena Santagneli
- Institute
of Chemistry, São Paulo State University
(UNESP), Avenue Francisco Degni 55, CEP 14800-060 Araraquara, São Paulo, Brazil
| | - Alexandre Lima Nepomuceno
- Embrapa
Soybean, Brazilian Agricultural Research
Corporation, HWY Carlos João Strass, Warta District, P.O.
Box 4006, 86085-981 Londrina, Paraná, Brazil
| | - Luiz Alberto Colnago
- Embrapa
Instrumentation, Brazilian Agricultural
Research Corporation, St. XV de Novembro 1452, P.O. Box 741, 13560-970 São Carlos, São Paulo, Brazil
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4
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Li J, Zhang S, Lei P, Guo L, Zhao X, Meng F. Physiological and Proteomic Responses of the Tetraploid Robinia pseudoacacia L. to High CO 2 Levels. Int J Mol Sci 2024; 25:5262. [PMID: 38791300 PMCID: PMC11121411 DOI: 10.3390/ijms25105262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
The increase in atmospheric CO2 concentration is a significant factor in triggering global warming. CO2 is essential for plant photosynthesis, but excessive CO2 can negatively impact photosynthesis and its associated physiological and biochemical processes. The tetraploid Robinia pseudoacacia L., a superior and improved variety, exhibits high tolerance to abiotic stress. In this study, we investigated the physiological and proteomic response mechanisms of the tetraploid R. pseudoacacia under high CO2 treatment. The results of our physiological and biochemical analyses revealed that a 5% high concentration of CO2 hindered the growth and development of the tetraploid R. pseudoacacia and caused severe damage to the leaves. Additionally, it significantly reduced photosynthetic parameters such as Pn, Gs, Tr, and Ci, as well as respiration. The levels of chlorophyll (Chl a and b) and the fluorescent parameters of chlorophyll (Fm, Fv/Fm, qP, and ETR) also significantly decreased. Conversely, the levels of ROS (H2O2 and O2·-) were significantly increased, while the activities of antioxidant enzymes (SOD, CAT, GR, and APX) were significantly decreased. Furthermore, high CO2 induced stomatal closure by promoting the accumulation of ROS and NO in guard cells. Through a proteomic analysis, we identified a total of 1652 DAPs after high CO2 treatment. GO functional annotation revealed that these DAPs were mainly associated with redox activity, catalytic activity, and ion binding. KEGG analysis showed an enrichment of DAPs in metabolic pathways, secondary metabolite biosynthesis, amino acid biosynthesis, and photosynthetic pathways. Overall, our study provides valuable insights into the adaptation mechanisms of the tetraploid R. pseudoacacia to high CO2.
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Affiliation(s)
- Jianxin Li
- College of Forestry and Grassland, Jilin Agriculture University, Changchun 130118, China; (J.L.); (P.L.)
- College of Life Science, Northeast Forestry University, Harbin 150040, China; (S.Z.); (L.G.)
| | - Subin Zhang
- College of Life Science, Northeast Forestry University, Harbin 150040, China; (S.Z.); (L.G.)
| | - Pei Lei
- College of Forestry and Grassland, Jilin Agriculture University, Changchun 130118, China; (J.L.); (P.L.)
| | - Liyong Guo
- College of Life Science, Northeast Forestry University, Harbin 150040, China; (S.Z.); (L.G.)
| | - Xiyang Zhao
- College of Forestry and Grassland, Jilin Agriculture University, Changchun 130118, China; (J.L.); (P.L.)
- Jilin Provincial Key Laboratory of Tree and Grass Genetics and Breeding, Changchun 130118, China
| | - Fanjuan Meng
- College of Forestry and Grassland, Jilin Agriculture University, Changchun 130118, China; (J.L.); (P.L.)
- Jilin Provincial Key Laboratory of Tree and Grass Genetics and Breeding, Changchun 130118, China
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5
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Yuan Y, Tan M, Zhou M, Hassan MJ, Lin L, Lin J, Zhang Y, Li Z. Drought priming-induced stress memory improves subsequent drought or heat tolerance via activation of γ-aminobutyric acid-regulated pathways in creeping bentgrass. PLANT BIOLOGY (STUTTGART, GERMANY) 2024. [PMID: 38509772 DOI: 10.1111/plb.13636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/14/2024] [Indexed: 03/22/2024]
Abstract
Recurrent drought can induce stress memory in plants to induce tolerance to subsequent stress, such as high temperature or drought. Drought priming (DP) is an effective approach to improve tolerance to various stresses; however, the potential mechanism of DP-induced stress memory has not been fully resoved. We examined DP-regulated subsequent drought tolerance or thermotolerance associated with changes in physiological responses, GABA and NO metabolism, heat shock factor (HSF) and dehydrin (DHN) pathways in perennial creeping bentgrass. Plants can recover after two cycle of DP, and DP-treated plants had significantly higher tolerance to subsequent drought or heat stress, with higher leaf RWC, Chl content, photochemical efficiency, and cell membrane stability. DP significantly alleviated oxidative damage through enhancing total antioxidant capacity in response to subsequent drought or heat stress. Endogenous GABA was significantly increased by DP through activating glutamic acid decarboxylase activity and inhibiting GABA transaminase activity. DP also enhanced accumulation of NO, depending on NOS activity, under subsequent drought or heat stress. Transcript levels of multiple transcription factors, heat shock proteins, and DHNs in the HSF and DHN pathways were up-regulated by DP under drought or heat stress, but there were differences between DP-regulated heat tolerance and drought tolerance in these pathways. The findings indicate that under recurrent moderate drought, DP improves subsequent tolerance to drought or heat stress in relation to GABA-regulated pathways, providing new insight into understanding of the role of stress memory in plant adaptation to complex environmental stresses.
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Affiliation(s)
- Y Yuan
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - M Tan
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - M Zhou
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - M J Hassan
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - L Lin
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - J Lin
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Y Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Z Li
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
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6
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Sharma Y, Ishu, Shumayla, Dixit S, Singh K, Upadhyay SK. Decoding the features and potential roles of respiratory burst oxidase homologs in bread wheat. CURRENT PLANT BIOLOGY 2024; 37:100315. [DOI: 10.1016/j.cpb.2023.100315] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/09/2024]
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7
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Qi Q, Shen Q, Geng J, An W, Wu Q, Wang N, Zhang Y, Li X, Wang W, Yu C, Li L. Stimuli-responsive biodegradable silica nanoparticles: From native structure designs to biological applications. Adv Colloid Interface Sci 2024; 324:103087. [PMID: 38278083 DOI: 10.1016/j.cis.2024.103087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 12/24/2023] [Accepted: 01/05/2024] [Indexed: 01/28/2024]
Abstract
Due to their inherent advantages, silica nanoparticles (SiNPs) have greatly potential applications as bioactive materials in biosensors/biomedicine. However, the long-term and nonspecific accumulation in healthy tissues may give rise to toxicity, thereby impeding their widespread clinical application. Hence, it is imperative and noteworthy to develop biodegradable and clearable SiNPs for biomedical purposes. Recently, the design of multi-stimuli responsive SiNPs to improve degradation efficiency under specific pathological conditions has increased their clinical trial potential as theranostic nanoplatform. This review comprehensively summaries the rational design and recent progress of biodegradable SiNPs under various internal and external stimuli for rapid in vivo degradation and clearance. In addition, the factors that affect the biodegradation of SiNPs are also discussed. We believe that this systematic review will offer profound stimulus and timely guide for further research in the field of SiNP-based nanosensors/nanomedicine.
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Affiliation(s)
- Qianhui Qi
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China; Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314100, China
| | - Qian Shen
- Key Laboratory of Flexible Electronics (KLOFE) and School of Flexible Electronics (Future Technologies), Nanjing Tech University, Nanjing 211800, China
| | - Jiaying Geng
- Key Laboratory of Flexible Electronics (KLOFE) and School of Flexible Electronics (Future Technologies), Nanjing Tech University, Nanjing 211800, China
| | - Weizhen An
- Key Laboratory of Flexible Electronics (KLOFE) and School of Flexible Electronics (Future Technologies), Nanjing Tech University, Nanjing 211800, China
| | - Qiong Wu
- Key Laboratory of Flexible Electronics (KLOFE) and School of Flexible Electronics (Future Technologies), Nanjing Tech University, Nanjing 211800, China
| | - Nan Wang
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Yu Zhang
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xue Li
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Wei Wang
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China.
| | - Changmin Yu
- Key Laboratory of Flexible Electronics (KLOFE) and School of Flexible Electronics (Future Technologies), Nanjing Tech University, Nanjing 211800, China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China.
| | - Lin Li
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China.
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8
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Zhang C, Tetteh C, Luo S, Jin P, Hao X, Sun M, Fang N, Liu Y, Zhang H. Exogenous application of pectin triggers stomatal closure and immunity in Arabidopsis. MOLECULAR PLANT PATHOLOGY 2024; 25:e13438. [PMID: 38393695 PMCID: PMC10887356 DOI: 10.1111/mpp.13438] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/05/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024]
Abstract
Pectin has been extensively studied in animal immunity, and exogenous pectin as a food additive can provide protection against inflammatory bowel disease. However, the utility of pectin to improve immunity in plants is still unstudied. Here, we found exogenous application of pectin triggered stomatal closure in Arabidopsis in a dose- and time-dependent manner. Additionally, pectin activated peroxidase and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase to produce reactive oxygen species (ROS), which subsequently increased cytoplasmic Ca2+ concentration ([Ca2+ ]cyt ) and was followed by nitric oxide (NO) production, leading to stomatal closure in an abscisic acid (ABA) and salicylic acid (SA) signalling-dependent mechanism. Furthermore, pectin enhanced the disease resistance to Pseudomonas syringae pv. tomato DC3000 (Pst DC3000) with mitogen-activated protein kinases (MPKs) MPK3/6 activated and upregulated expression of defence-responsive genes in Arabidopsis. These results suggested that exogenous pectin-induced stomatal closure was associated with ROS and NO production regulated by ABA and SA signalling, contributing to defence against Pst DC3000 in Arabidopsis.
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Affiliation(s)
- Cheng Zhang
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
| | - Charles Tetteh
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
| | - Sheng Luo
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
| | - Pinyuan Jin
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
| | - Xingqian Hao
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
| | - Min Sun
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
| | - Nan Fang
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
| | - Yingjun Liu
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
| | - Huajian Zhang
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Key Laboratory of Agri‐products Quality and Biosafety, Department of Plant PathologyCollege of Plant Protection, Ministry of Education, Anhui Agricultural UniversityHefeiAnhuiChina
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9
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Battisti I, Zambonini D, Ebinezer LB, Trentin AR, Meggio F, Petit G, Masi A. Perfluoroalkyl substances exposure alters stomatal opening and xylem hydraulics in willow plants. CHEMOSPHERE 2023; 344:140380. [PMID: 37813249 DOI: 10.1016/j.chemosphere.2023.140380] [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: 07/18/2023] [Revised: 10/04/2023] [Accepted: 10/05/2023] [Indexed: 10/11/2023]
Abstract
Climate change and pollution are increasingly important stress factors for life on Earth. Dispersal of poly- and perfluoroalkyl substances (PFAS) are causing worldwide contamination of soils and water tables. PFAS are partially hydrophobic and can easily bioaccumulate in living organisms, causing metabolic alterations. Different plant species can uptake large amounts of PFAS, but little is known about its consequences for the plant water relation and other physiological processes, especially in woody plants. In this study, we investigated the fractionation of PFAS bioaccumulation from roots to leaves and its effects on the conductive elements of willow plants. Additionally, we focused on the stomal opening and the phytohormonal content. For this purpose, willow cuttings were exposed to a mixture of 11 PFAS compounds and the uptake was evaluated by LC-MS/MS. Stomatal conductance was measured and the xylem vulnerability to air embolism was tested and further, the abscisic acid and salicylic acid contents were quantified using LC-MS/MS. PFAS accumulated from roots to leaves based on their chemical structure. PFAS-exposed plants showed reduced stomatal conductance, while no differences were observed in abscisic acid and salicylic acid contents. Interestingly, PFAS exposure caused a higher vulnerability to drought-induced xylem embolism in treated plants. Our study provides novel information about the PFAS effects on the xylem hydraulics, suggesting that the plant water balance may be affected by PFAS exposure. In this perspective, drought events may be more stressful for PFAS-exposed plants, thus reducing their potential for phytoremediation.
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Affiliation(s)
- Ilaria Battisti
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, Legnaro, PD, Italy.
| | - Dario Zambonini
- Department of Land, Environment, Agriculture and Forestry (TESAF), University of Padova, Viale dell'Università 16, Legnaro, PD, Italy
| | - Leonard Barnabas Ebinezer
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, Legnaro, PD, Italy
| | - Anna Rita Trentin
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, Legnaro, PD, Italy
| | - Franco Meggio
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, Legnaro, PD, Italy
| | - Giai Petit
- Department of Land, Environment, Agriculture and Forestry (TESAF), University of Padova, Viale dell'Università 16, Legnaro, PD, Italy
| | - Antonio Masi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, Legnaro, PD, Italy
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10
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Dabravolski SA, Isayenkov SV. The Role of Anthocyanins in Plant Tolerance to Drought and Salt Stresses. PLANTS (BASEL, SWITZERLAND) 2023; 12:2558. [PMID: 37447119 DOI: 10.3390/plants12132558] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/02/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023]
Abstract
Drought and salinity affect various biochemical and physiological processes in plants, inhibit plant growth, and significantly reduce productivity. The anthocyanin biosynthesis system represents one of the plant stress-tolerance mechanisms, activated by surplus reactive oxygen species. Anthocyanins act as ROS scavengers, protecting plants from oxidative damage and enhancing their sustainability. In this review, we focus on molecular and biochemical mechanisms underlying the role of anthocyanins in acquired tolerance to drought and salt stresses. Also, we discuss the role of abscisic acid and the abscisic-acid-miRNA156 regulatory node in the regulation of drought-induced anthocyanin production. Additionally, we summarise the available knowledge on transcription factors involved in anthocyanin biosynthesis and development of salt and drought tolerance. Finally, we discuss recent progress in the application of modern gene manipulation technologies in the development of anthocyanin-enriched plants with enhanced tolerance to drought and salt stresses.
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Affiliation(s)
- Siarhei A Dabravolski
- Department of Biotechnology Engineering, Braude Academic College of Engineering, Snunit 51, Karmiel 2161002, Israel
| | - Stanislav V Isayenkov
- Department of Plant Food Products and Biofortification, Institute of Food Biotechnology and Genomics, The National Academy of Sciences of Ukraine, Baidi-Vyshneveckogo Str., 2a, 04123 Kyiv, Ukraine
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11
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Li D, Yan M, Liang H, Li Z, Zhang S. Exogenous Calcium Induces Different Hydraulic Strategies in Response to Osmotic Stress in Maize Seedlings. PLANTS (BASEL, SWITZERLAND) 2023; 12:1999. [PMID: 37653916 PMCID: PMC10223354 DOI: 10.3390/plants12101999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 09/02/2023]
Abstract
Recent discoveries regarding the signal molecules involved in abiotic stresses require integration into the field of plant hydraulic property research. Although calcium (Ca) is an important second messenger involved in numerous complex, abiotic stress-induced signaling pathways, it remains unclear how exogenous calcium mediates cellular signaling to promote plant drought resistance. We investigated the effects of calcium on the water balance and hydraulic properties in maize seedlings (Zea mays L.) under osmotic stress simulated by 10% (m/v) PEG-6000 in a hydroponic culture. The osmotic stress dramatically decreased the photosynthetic rate, transpiration rate, stomatal conductance, leaf water content, and root water absorption. However, the short-term (2 h) and long-term (10 d) exogenous Ca2+ (CaCl2: 10 mM) treatments had different effects on the maize gas exchange parameters and leaf water status. The short-term treatment improved the leaf transpiration by inhibiting the abscisic acid (ABA) synthesis and accumulation in the leaves, generating a stronger transpiration pull and enhancing the root water absorption and axial flow path water transport by increasing the root hydraulic conductance to relieve the osmotic stress-induced inhibition. The long-term treatment induced the ABA and H2O2 accumulation in the roots and leaves. Under osmotic stress, the accumulation of ABA, H2O2, and Ca2+ rapidly repressed the transpiration and enhanced the radial flow path water transport, decreasing the water loss and improving the stress tolerance. These insights suggest a role for a judicious use of Ca fertilizer in reducing the adverse effects of drought on agricultural production.
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Affiliation(s)
- Dongyang Li
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China
- College of Life Sciences, Northwest A&F University, Yangling 712100, China
| | - Minfei Yan
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China
| | - Haofeng Liang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China
| | - Zhe Li
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China
| | - Suiqi Zhang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China
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12
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Sakouhi L, Kadri O, Werghi S, Massoud MB, Kharbech O, Murata Y, Chaoui A. Seed pretreatment with melatonin confers cadmium tolerance to chickpea seedlings through cellular redox homeostasis and antioxidant gene expression improvement. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27562-5. [PMID: 37191750 DOI: 10.1007/s11356-023-27562-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/07/2023] [Indexed: 05/17/2023]
Abstract
Several phytoremediation strategies have been undertaken to alleviate cadmium (Cd)-mediated injury to crop yield resulting from agricultural land pollution. In the present study, the potentially beneficial effect of melatonin (Me) was appraised. Therefore, chickpea (Cicer arietinum L.) seeds were imbibed for 12 H in distilled water or Me (10 µM) solution. Then, the seeds germinated in the presence or the absence of 200 µM CdCl2 for 6 days. Seedlings obtained from Me-pretreated seeds exhibited enhanced growth traits, reflected by fresh biomass and length increase. This beneficial effect was associated with a decreased Cd accumulation in seedling tissues (by 46 and 89% in roots and shoots, respectively). Besides, Me efficiently protected the cell membrane integrity of Cd-subjected seedlings. This protective effect was manifested by the decreased lipoxygenase activity and the subsequently reduced accumulation of 4-hydroxy-2-nonenal. Melatonin counteracted the Cd-mediated stimulation of the pro-oxidant NADPH-oxidase (90 and 45% decrease compared to non-pretreated Cd-stressed roots and shoots, respectively) and NADH-oxidase activities (almost 40% decrease compared to non-pretreated roots and shoots), preventing, thus, hydrogen peroxide overaccumulation (50 and 35% lesser than non-pretreated roots and shoots, respectively). Furthermore, Me enhanced the cellular content of pyridine nicotinamide reduced forms [NAD(P)H] and their redox state. This effect was associated with the Me-mediated stimulation of the glucose-6-phosphate dehydrogenase (G6PDH) and malate dehydrogenase activities, concomitantly with the inhibition of NAD(P)H-consuming activities. These effects were accompanied by the up-regulation of G6PDH gene expression (45% increase in roots) and the down-regulation of the respiratory burst oxidase homolog protein F (RBOHF) gene expression (53% decrease in roots and shoots). Likewise, Me induced an increased activity and gene transcription of the Asada-Halliwell cycle, namely ascorbate peroxidase, monodehydroascorbate reductase, dehydroascorbate reductase, and glutathione reductase, concomitantly with a reduction of the glutathione peroxidase activity. This modulating effect led to the restoration of the redox homeostasis of the ascorbate and the glutathione pools. Overall, current results attest that seed pretreatment with Me is effective in Cd stress relief and can be a beneficial crop-protective approach.
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Affiliation(s)
- Lamia Sakouhi
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia.
| | - Oumayma Kadri
- Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan
| | - Sirine Werghi
- Laboratory of Molecular Genetics, Immunology and Biotechnology (LR99ES12), Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Marouane Ben Massoud
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia
- School of Biological, Earth & Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, T23N73K, Ireland
| | - Oussama Kharbech
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan
| | - Abdelilah Chaoui
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia
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13
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Wu J, Lv S, Zhao L, Gao T, Yu C, Hu J, Ma F. Advances in the study of the function and mechanism of the action of flavonoids in plants under environmental stresses. PLANTA 2023; 257:108. [PMID: 37133783 DOI: 10.1007/s00425-023-04136-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/11/2023] [Indexed: 05/04/2023]
Abstract
MAIN CONCLUSION This review summarizes the anti-stress effects of flavonoids in plants and highlights its role in the regulation of polar auxin transport and free radical scavenging mechanism. As secondary metabolites widely present in plants, flavonoids play a vital function in plant growth, but also in resistance to stresses. This review introduces the classification, structure and synthetic pathways of flavonoids. The effects of flavonoids in plant stress resistance were enumerated, and the mechanism of flavonoids in plant stress resistance was discussed in detail. It is clarified that plants under stress accumulate flavonoids by regulating the expression of flavonoid synthase genes. It was also determined that the synthesized flavonoids are transported in plants through three pathways: membrane transport proteins, vesicles, and bound to glutathione S-transferase (GST). At the same time, the paper explores that flavonoids regulate polar auxin transport (PAT) by acting on the auxin export carrier PIN-FORMED (PIN) in the form of ATP-binding cassette subfamily B/P-glycoprotein (ABCB/PGP) transporter, which can help plants to respond in a more dominant form to stress. We have demonstrated that the number and location of hydroxyl groups in the structure of flavonoids can determine their free radical scavenging ability and also elucidated the mechanism by which flavonoids exert free radical removal in cells. We also identified flavonoids as signaling molecules to promote rhizobial nodulation and colonization of arbuscular mycorrhizal fungi (AMF) to enhance plant-microbial symbiosis in defense to stresses. Given all this knowledge, we can foresee that the in-depth study of flavonoids will be an essential way to reveal plant tolerance and enhance plant stress resistance.
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Affiliation(s)
- Jieting Wu
- School of Environmental Science, Liaoning University, Shenyang, 110036, China.
| | - Sidi Lv
- School of Environmental Science, Liaoning University, Shenyang, 110036, China
| | - Lei Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Tian Gao
- School of Environmental Science, Liaoning University, Shenyang, 110036, China
| | - Chang Yu
- Kerchin District Branch Office, Tongliao City Ecological Environment Bureau, Tongliao, 028006, China
| | - Jianing Hu
- Dalian Neusoft University of Information, Dalian, 116032, China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
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14
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Bai Q, Niu Z, Chen Q, Gao C, Zhu M, Bai J, Liu M, He L, Liu J, Jiang Y, Wan D. The C 2 H 2 -type zinc finger transcription factor OSIC1 positively regulates stomatal closure under osmotic stress in poplar. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:943-960. [PMID: 36632734 PMCID: PMC10106854 DOI: 10.1111/pbi.14007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 12/30/2022] [Accepted: 12/23/2022] [Indexed: 05/04/2023]
Abstract
Salt and drought impair plant osmotic homeostasis and greatly limit plant growth and development. Plants decrease stomatal aperture to reduce water loss and maintain osmotic homeostasis, leading to improved stress tolerance. Herein, we identified the C2 H2 transcription factor gene OSMOTIC STRESS INDUCED C2 H2 1 (OSIC1) from Populus alba var. pyramidalis to be induced by salt, drought, polyethylene glycol 6000 (PEG6000) and abscisic acid (ABA). Overexpression of OSIC1 conferred transgenic poplar more tolerance to high salinity, drought and PEG6000 treatment by reducing stomatal aperture, while its mutant generated by the CRISPR/Cas9 system showed the opposite phenotype. Furthermore, OSIC1 directly up-regulates PalCuAOζ in vitro and in vivo, encoding a copper-containing polyamine oxidase, to enhance H2 O2 accumulation in guard cells and thus modulates stomatal closure when stresses occur. Additionally, ABA-, drought- and salt-induced PalMPK3 phosphorylates OSIC1 to increase its transcriptional activity to PalCuAOζ. This regulation of OSIC1 at the transcriptional and protein levels guarantees rapid stomatal closure when poplar responds to osmotic stress. Our results revealed a novel transcriptional regulatory mechanism of H2 O2 production in guard cells mediated by the OSIC1-PalCuAOζ module. These findings deepen our understanding of how perennial woody plants, like poplar, respond to osmotic stress caused by salt and drought and provide potential targets for breeding.
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Affiliation(s)
- Qiuxian Bai
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
- Department of PharmacologyNingxia Medical UniversityYinchuanChina
| | - Zhimin Niu
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
| | - Qingyuan Chen
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
| | - Chengyu Gao
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
| | - Mingjia Zhu
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
| | - Jiexian Bai
- College of Computer Information Engineering,Shanxi Technology and Business CollegeTaiyuanChina
| | - Meijun Liu
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
| | - Ling He
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
| | - Jianquan Liu
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
| | - Yuanzhong Jiang
- Key Laboratory for Bio‐resources and Eco‐environment of Ministry of Education, College of Life ScienceSichuan UniversityChengduChina
| | - Dongshi Wan
- State Key Laboratory of Grassland Agro‐Ecosystem, College of EcologyLanzhou UniversityLanzhouChina
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15
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Ding Y, Zhou M, Wang K, Qu A, Hu S, Jiang Q, Yi K, Wang F, Cai C, Zhu C, Chen Z. Rice DST transcription factor negatively regulates heat tolerance through ROS-mediated stomatal movement and heat-responsive gene expression. FRONTIERS IN PLANT SCIENCE 2023; 14:1068296. [PMID: 36798712 PMCID: PMC9927019 DOI: 10.3389/fpls.2023.1068296] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Plants are frequently subjected to a broad spectrum of abiotic stresses including drought, salinity and extreme temperatures and have evolved both common and stress-specific responses to promote fitness and survival. Understanding the components and mechanisms that underlie both common and stress-specific responses can enable development of crop plants tolerant to different stresses. Here, we report a rice heat stress-tolerant 1 (hst1) mutant with increased heat tolerance. HST1 encodes the DST transcription factor, which also regulates drought and salinity tolerance. Increased heat tolerance of hst1 was associated with suppressed expression of reactive oxygen species (ROS)-scavenging peroxidases and increased ROS levels, which reduced water loss by decreasing stomatal aperture under heat stress. In addition, increased ROS levels enhanced expression of genes encoding heat shock protein (HSPs) including HSP80, HSP74, HSP58 and small HSPs. HSPs promote stabilization of proteins and protein refolding under heat stress and accordingly mutation of HST1 also improved reproductive traits including pollen viability and seed setting under high temperature. These results broaden the negative roles of DST in abiotic stress tolerance and provide important new insights into DST-regulated tolerance to diverse abiotic stresses through both shared and stress-specific mechanisms.
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Affiliation(s)
- Yanfei Ding
- Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Mei Zhou
- Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Ke Wang
- Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Aili Qu
- School of Biological and Chemical Engineering, Ningbo Institute of Technology, Ningbo, China
| | - Shanshan Hu
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Qiong Jiang
- Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Keke Yi
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Science, Beijing, China
| | - Feijuan Wang
- Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Chong Cai
- Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Cheng Zhu
- Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Zhixiang Chen
- Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, United States
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16
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Li M, Cai Z, Li M, Chen L, Zeng W, Yuan H, Liu C. The dual detection of formaldehydes and sulfenic acids with a reactivity fluorescent probe in cells and in plants. Anal Chim Acta 2023; 1239:340734. [PMID: 36628774 DOI: 10.1016/j.aca.2022.340734] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/09/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
In order to reveal the inter-relationship between protein sulfenic acid (RSOH) and formaldehyde (FA) in different physiological processes, development of tools that are capable of respective and continuous detection for both species is highly valuable. Herein, we reported an "off-on" sensor NA-SF for dual detection of RSOH and FA in cells and plant tissues. Importantly, the highly desirable attribute of the probe NA-SF combined with TCEP, makes it possible to monitor endogenous both RSOH and FA in living cells and plants tissues. NA-SF has been applied successfully in detecting RSOH and FA at physiological concentrations in HeLa, HepG2, A549 cells. Furthermore, the application of NA-SF in evaluating the RSOH and FA level in Arabidopsis thaliana roots of different growth stages are performed. The results show that the level of RSOH and FA in Arabidopsis thaliana roots correlates well with their growth stages, which suggests that both RSOH and FA might play important roles in promoting plant growth and roots elongation. And it also implied a potential application for the biological and pathological research of RSOH and FA, especially in plant physiology. Therefore, we expect NA-SF could provide a convenient and robust tool for better understanding the physiological and pathological roles of RSOH and FA.
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Affiliation(s)
- Man Li
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Zhiyi Cai
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Mengzhao Li
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Linfeng Chen
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Weili Zeng
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Hong Yuan
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Chunrong Liu
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, School of Chemistry, Central China Normal University, Wuhan, 430079, China.
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17
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Liatile PC, Potgieter G, Moloi MJ. A Natural Bio-Stimulant Consisting of a Mixture of Fish Protein Hydrolysates and Kelp Extract Enhances the Physiological, Biochemical and Growth Responses of Spinach under Different Water Levels. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11233374. [PMID: 36501413 PMCID: PMC9741341 DOI: 10.3390/plants11233374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/16/2022] [Accepted: 11/26/2022] [Indexed: 06/12/2023]
Abstract
Spinach (Spinacia oleracea L.) is a highly nutritious, desirable green leafy vegetable, which is less tolerant to drought. This study was conducted to establish the impact of a natural bio-stimulant consisting of a mixture of fish protein hydrolysates and kelp extract (trade name, Xcell Boost) on the physiological and biochemical responses as well as vegetative growth of spinach (Spinacia oleracea L.) under different water levels (100% (full irrigation), 50% (mild drought stress) and 30% (severe drought stress) water holding capacity). Bio-stimulant application at any strength (single, BX1 or double, BX2) had no effect on the photochemical reactions. The application of bio-stimulant at double strength concentration (BX2) increased the chlorophyll and carotenoid contents, as well as the activities of antioxidative enzymes, ascorbate peroxidase (APX) and guaiacol peroxidase (GPX), under drought stress. Application at single strength (BX1) increased the normalised difference vegetation index (NDVI), stomatal conductance, accumulation of osmoprotectants (proline and total soluble sugars) and reduced electrolyte leakage under drought stress. Furthermore, bio-stimulant applications at either concentration induced remarkable increases in plant height, leaf area, stem dry weight, root length and root moisture. Under BX2, APX and stomatal conductance positively correlated with stem dry weight, while root length positively correlated with total chlorophyll content. These results show that Xcell Boost is a highly advantageous bio-stimulant for increasing the tolerance of spinach to drought stress, which can most likely benefit other crops grown in semi-arid and arid areas.
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Liu H, Song S, Zhang H, Li Y, Niu L, Zhang J, Wang W. Signaling Transduction of ABA, ROS, and Ca 2+ in Plant Stomatal Closure in Response to Drought. Int J Mol Sci 2022; 23:ijms232314824. [PMID: 36499153 PMCID: PMC9736234 DOI: 10.3390/ijms232314824] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/17/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022] Open
Abstract
Drought is a global threat that affects agricultural production. Plants have evolved several adaptive strategies to cope with drought. Stomata are essential structures for plants to control water status and photosynthesis rate. Stomatal closure is an efficient way for plants to reduce water loss and improve survivability under drought conditions. The opening and closure of stomata depend on the turgor pressure in guard cells. Three key signaling molecules, including abscisic acid (ABA), reactive oxygen species (ROS), and calcium ion (Ca2+), play pivotal roles in controlling stomatal closure. Plants sense the water-deficit signal mainly via leaves and roots. On the one hand, ABA is actively synthesized in root and leaf vascular tissues and transported to guard cells. On the other hand, the roots sense the water-deficit signal and synthesize CLAVATA3/EMBRYO-SURROUNDING REGION RELATED 25 (CLE25) peptide, which is transported to the guard cells to promote ABA synthesis. ABA is perceived by pyrabactin resistance (PYR)/PYR1-like (PYL)/regulatory components of ABA receptor (RCAR) receptors, which inactivate PP2C, resulting in activating the protein kinases SnRK2s. Many proteins regulating stomatal closure are activated by SnRK2s via protein phosphorylation. ABA-activated SnRK2s promote apoplastic ROS production outside of guard cells and transportation into the guard cells. The apoplastic H2O2 can be directly sensed by a receptor kinase, HYDROGEN PEROXIDE-INDUCED CA2+ INCREASES1 (HPCA1), which induces activation of Ca2+ channels in the cytomembrane of guard cells, and triggers an increase in Ca2+ in the cytoplasm of guard cells, resulting in stomatal closure. In this review, we focused on discussing the signaling transduction of ABA, ROS, and Ca2+ in controlling stomatal closure in response to drought. Many critical genes are identified to have a function in stomatal closure under drought conditions. The identified genes in the process can serve as candidate genes for genetic engineering to improve drought resistance in crops. The review summarizes the recent advances and provides new insights into the signaling regulation of stomatal closure in response to water-deficit stress and new clues on the improvement of drought resistance in crops.
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19
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Morales-Quintana L, Miño R, Mendez-Yañez A, Gundel PE, Ramos P. Do fungal-endosymbionts improve crop nutritional quality and tolerance to stress by boosting flavonoid-mediated responses? Food Res Int 2022; 161:111850. [DOI: 10.1016/j.foodres.2022.111850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 08/17/2022] [Accepted: 08/21/2022] [Indexed: 11/04/2022]
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20
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Jo J, Lee J, Ahn Y, Hwang YS, Park J, Lee J, Choi J. Metabolome and transcriptome analyses of plants grown in naturally attenuated soil after hydrogen fluoride exposure. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129323. [PMID: 35749895 DOI: 10.1016/j.jhazmat.2022.129323] [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: 03/31/2022] [Revised: 05/20/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Accidental chemical leaks and illegal chemical discharges are a global environmental issue. In 2012, a hydrogen fluoride leak in Gumi, South Korea, killed several people and contaminated the environment. This leak also led to a significant decline in crop yield, even after the soil concentration of hydrogen fluoride decreased to below the standard level following natural attenuation. To determine the cause of this decreased plant productivity, we designed direct and indirect exposure tests by evaluating the metabolome, transcriptome, and phenome of the plants. In an indirect exposure test, soil metabolomics revealed downregulation of metabolites in vitamin B6, lipopolysaccharide, osmolyte, and exopolysaccharide metabolism. Next-generation sequencing of the plants showed that ABR1 and DREB1A were overexpressed in response to stress. Plant metabolomics demonstrated upregulation of folate biosynthesis and nicotinate and nicotinamide metabolism associated with detoxification of reactive oxygen species. These results demonstrate impaired metabolism of soil microbes and plants even after natural attenuation of hydrogen fluoride in soil. The novel chemical exposure testing used in this study can be applied to identify hidden damage to organisms after natural attenuation of chemicals in soil, as well as biomarkers for explaining the decline in yield of plants grown in soil near pollutant-emitting industrial facilities.
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Affiliation(s)
- Jungman Jo
- Center for Sustainable Environment Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jinkyung Lee
- Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Yongtae Ahn
- Center for Sustainable Environment Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Yu Sik Hwang
- Environmental Fate and Exposure Research Group, Korea Institute of Toxicology, Jinju 52834, Republic of Korea
| | - Junboum Park
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jeongae Lee
- Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.
| | - Jaeyoung Choi
- Center for Sustainable Environment Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Graduate School of Energy and Environment, Korea University, Seoul 02841, Republic of Korea.
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Li Y, Gao Z, Lu J, Wei X, Qi M, Yin Z, Li T. SlSnRK2.3 interacts with SlSUI1 to modulate high temperature tolerance via Abscisic acid (ABA) controlling stomatal movement in tomato. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 321:111305. [PMID: 35696906 DOI: 10.1016/j.plantsci.2022.111305] [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: 02/20/2022] [Revised: 04/02/2022] [Accepted: 04/25/2022] [Indexed: 06/15/2023]
Abstract
Tomato is often exposed to high temperature stress during summer cultivation. Stomatal movement plays important roles in photosynthesis and transpiration which restricts the quality and yield of tomato under environmental stress. To elucidate the mechanism of stomatal movement in high temperature tolerance, SlSnRK2s (sucrose non-fermenting 1-related protein kinases) silenced plants were generated in tomato with CRISPR-Cas 9 gene editing techniques. Through the observation of stomatal parameters, SlSnRK2.3 regulated stomatal closure which was responded to ABA (abscisic acid) and activated signaling pathway of ROS (reactive oxygen species) in high temperature stress. Based on the positive functions of SlSnRK2.3, the cDNA library was generated to investigate interaction proteins of SlSnRK2s. The interaction between SlSnRK2.3 and SlSUI1 (protein translation factor SUI1 homolog) was employed by Yeast two hybrid assay (Y2H), Luciferase (LUC), and Bimolecular fluorescence complementation (BiFC). Finally, the specific interactive sites between SlSnRK2.3 and SlSUI1 were verified by site-directed mutagenesis. The consistent mechanism of SlSnRK2.3 and SlSUI1 in stomatal movement, indicating that SlSUI1 interacted with SlSnRK2.3 through ABA-dependent signaling pathway in high temperature stress. Our results provided evidence for improving the photosynthetic capacity of tomato under high temperature stress, and support the breeding and genetic engineering of tomato over summer facility cultivation.
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Affiliation(s)
- Yangyang Li
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Zhenhua Gao
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Jiazhi Lu
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Xueying Wei
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Mingfang Qi
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Zepeng Yin
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Fruit Postharvest Biology of Liaoning Province, No. 120 Dongling Road, Shenhe District, 110866, PR China.
| | - Tianlai Li
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China.
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Zeng H, Xu H, Wang H, Chen H, Wang G, Bai Y, Wei Y, Shi H. LSD3 mediates the oxidative stress response through fine-tuning APX2 activity and the NF-YC15-GSTs module in cassava. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 110:1447-1461. [PMID: 35352421 DOI: 10.1111/tpj.15749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/12/2022] [Accepted: 03/27/2022] [Indexed: 06/14/2023]
Abstract
Reactive oxygen species (ROS) overproduction leads to oxidative damage under almost all stress conditions. Lesion-Simulating Disease (LSD), a zinc finger protein, is an important negative regulator of ROS accumulation and cell death in plants. However, the in vivo role of LSD in cassava (Manihot esculenta) and the underlying molecular mechanisms remain elusive. Here, we found that MeLSD3 is essential for the oxidative stress response in cassava. MeLSD3 physically interacted with ascorbate peroxidase 2 (MeAPX2), thereby promoting its enzymatic activity. In addition, MeLSD3 also interacted with the nuclear factor YC15 (MeNF-YC15), which also interacted with nuclear factor YA2/4 (MeNF-YA2/4) and nuclear factor YB18 (MeNF-YB18) to form an MeNF-YC15-MeNF-YA2/4-MeNF-YB18 complex. Notably, MeLSD3 positively modulated the transcriptional activation of the MeNF-YC15-MeNF-YA2/4-MeNF-YB18 complex by interacting with the CCAAT boxes of the promoters of glutathione S-transferases U37/U39 (MeGST-U37/U39), activating their transcription. When one or both of MeLSD3 and the MeNF-YC15-MeNF-YA2/4-MeNF-YB18 complex were co-silenced, cassava showed decreased oxidative stress resistance, while overexpression of MeGST-U37/U39 alleviated the oxidative stress-sensitive phenotype of these silenced plants. This study illustrates the dual roles of MeLSD3 in promoting MeAPX2 activity and MeNF-YC15-MeGST-U37/U39 regulation, which underlie the oxidative stress response in cassava.
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Affiliation(s)
- Hongqiu Zeng
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Haoran Xu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Hao Wang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Hao Chen
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Guanqi Wang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Yujing Bai
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Yunxie Wei
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Haitao Shi
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
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Wang G, Peng M, Wang Y, Chen Z, Zhu S. Preharvest Hydrogen Peroxide Treatment Delays Leaf Senescence of Chinese Flowering Cabbage During Storage by Reducing Water Loss and Activating Antioxidant Defense System. FRONTIERS IN PLANT SCIENCE 2022; 13:856646. [PMID: 35432398 PMCID: PMC9009452 DOI: 10.3389/fpls.2022.856646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/10/2022] [Indexed: 06/10/2023]
Abstract
Leaf yellowing, an indicator of senescence, reduces commercial value of Chinese flowering cabbage after harvest. Hydrogen peroxide (H2O2) plays a dual role in mediating plant stress responses, but it is not clear whether and how it affects leaf senescence when exogenously stimulating the plants before harvest. Here, we found that preharvest application with low concentrations of H2O2 to root delays leaf senescence. Around 10 mM H2O2 reduced leaf yellowing rate by 8.2 and 26.4% relative to the control following 4 and 8 days storage, respectively. The H2O2-treated cabbages showed higher chlorophyll and lower relative expression of senescence-associated gene (SAG) BrSAG12 than the control. Proteomic analysis revealed 118 and 204 differentially expressed proteins (DEPs) in H2O2-treated plants at 4 and 8 days of storage, respectively. The main DEPs are involved in chlorophyll degradation and synthesis, water deprivation, antioxidant activity, and protections on chloroplast membranes. Decline of water loss in H2O2-treated cabbages was coincide with increase of proline contents and modulation of leaf stomatal aperture. Alleviation of oxidative stress was indicated by suppression of respiratory burst oxidase homolog and upregulation of reactive oxygen species (ROS) scavenging-related genes. These results were also supported by the alleviation of lipid peroxidation and the protections on cell integrity and photochemical efficiency in H2O2-treated group. Collectively, preharvest H2O2 treatment alleviates water loss and activates antioxidant defense system, protects chloroplast membrane from oxidative damage, and ultimately delays leaf senescence during storage. This study provides novel insights into the roles of H2O2 for regulating leaf senescence of Chinese flowering cabbage.
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Wu C, Lin M, Chen F, Chen J, Liu S, Yan H, Xiang Y. Homologous Drought-Induced 19 Proteins, PtDi19-2 and PtDi19-7, Enhance Drought Tolerance in Transgenic Plants. Int J Mol Sci 2022; 23:ijms23063371. [PMID: 35328791 PMCID: PMC8954995 DOI: 10.3390/ijms23063371] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/18/2022] [Accepted: 03/18/2022] [Indexed: 12/25/2022] Open
Abstract
Drought-induced 19 (Di19) proteins play important roles in abiotic stress responses. Thus far, there are no reports about Di19 family in woody plants. Here, eight Di19 genes were identified in poplar. We analyzed phylogenetic tree, conserved protein domain, and gene structure of Di19 gene members in seven species. The results showed the Di19 gene family was very conservative in both dicotyledonous and monocotyledonous forms. On the basis of transcriptome data, the expression patterns of Di19s in poplar under abiotic stress and ABA treatment were further studied. Subsequently, homologous genes PtDi19-2 and PtDi19-7 with strong response to drought stress were identified. PtDi19-2 functions as a nuclear transcriptional activator with a transactivation domain at the C-terminus. PtDi19-7 is a nuclear and membrane localization protein. Additionally, PtDi19-2 and PtDi19-7 were able to interact with each other in yeast two-hybrid system. Overexpression of PtDi19-2 and PtDi19-7 in Arabidopsis was found. Phenotype identification and physiological parameter analysis showed that transgenic Arabidopsis increased ABA sensitivity and drought tolerance. PtDi19-7 was overexpressed in hybrid poplar 84K (Populus alba × Populus glandulosa). Under drought treatment, the phenotype and physiological parameters of transgenic poplar were consistent with those of transgenic Arabidopsis. In addition, exogenous ABA treatment induced lateral bud dormancy of transgenic poplar and stomatal closure of transgenic Arabidopsis. The expression of ABA/drought-related marker genes was upregulated under drought treatment. These results indicated that PtDi19-2 and PtDi19-7 might play a similar role in improving the drought tolerance of transgenic plants through ABA-dependent signaling pathways.
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Affiliation(s)
- Caijuan Wu
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230061, China; (C.W.); (M.L.); (F.C.); (J.C.); (S.L.); (H.Y.)
| | - Miao Lin
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230061, China; (C.W.); (M.L.); (F.C.); (J.C.); (S.L.); (H.Y.)
| | - Feng Chen
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230061, China; (C.W.); (M.L.); (F.C.); (J.C.); (S.L.); (H.Y.)
| | - Jun Chen
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230061, China; (C.W.); (M.L.); (F.C.); (J.C.); (S.L.); (H.Y.)
| | - Shifan Liu
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230061, China; (C.W.); (M.L.); (F.C.); (J.C.); (S.L.); (H.Y.)
| | - Hanwei Yan
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230061, China; (C.W.); (M.L.); (F.C.); (J.C.); (S.L.); (H.Y.)
| | - Yan Xiang
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230061, China; (C.W.); (M.L.); (F.C.); (J.C.); (S.L.); (H.Y.)
- National Engineering Laboratory of Crop Stress Resistance Breeding, College of Life Sciences, Anhui Agricultural University, Hefei 230061, China
- Correspondence:
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25
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Ranjan A, Sinha R, Singla-Pareek SL, Pareek A, Singh AK. Shaping the root system architecture in plants for adaptation to drought stress. PHYSIOLOGIA PLANTARUM 2022; 174:e13651. [PMID: 35174506 DOI: 10.1111/ppl.13651] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/05/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Root system architecture plays an important role in plant adaptation to drought stress. The root system architecture (RSA) consists of several structural features, which includes number and length of main and lateral roots along with the density and length of root hairs. These features exhibit plasticity under water-limited environments and could be critical to developing crops with efficient root systems for adaptation under drought. Recent advances in the omics approaches have significantly improved our understanding of the regulatory mechanisms of RSA remodeling under drought and the identification of genes and other regulatory elements. Plant response to drought stress at physiological, morphological, biochemical, and molecular levels in root cells is regulated by various phytohormones and their crosstalk. Stress-induced reactive oxygen species play a significant role in regulating root growth and development under drought stress. Several transcription factors responsible for the regulation of RSA under drought have proven to be beneficial for developing drought tolerant crops. Molecular breeding programs for developing drought-tolerant crops have been greatly benefitted by the availability of quantitative trait loci (QTLs) associated with the RSA regulation. In the present review, we have discussed the role of various QTLs, signaling components, transcription factors, microRNAs and crosstalk among various phytohormones in shaping RSA and present future research directions to better understand various factors involved in RSA remodeling for adaptation to drought stress. We believe that the information provided herein may be helpful in devising strategies to develop crops with better RSA for efficient uptake and utilization of water and nutrients under drought conditions.
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Affiliation(s)
- Alok Ranjan
- School of Genetic Engineering, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Ragini Sinha
- School of Genetic Engineering, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Sneh L Singla-Pareek
- Plant Stress Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Ashwani Pareek
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
- National Agri-Food Biotechnology Institute, Mohali, Punjab, India
| | - Anil Kumar Singh
- School of Genetic Engineering, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
- ICAR-National Institute for Plant Biotechnology, LBS Centre, New Delhi, India
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26
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Rodrigues O, Shan L. Stomata in a state of emergency: H 2O 2 is the target locked. TRENDS IN PLANT SCIENCE 2022; 27:274-286. [PMID: 34756808 DOI: 10.1016/j.tplants.2021.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 09/22/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
Stomatal movements are essential for plants to regulate photosynthesis rate, water status, and immunity. Upon stress stimulation, the production of hydrogen peroxide (H2O2) in the apoplasts and its accumulation within the guard cells are among key determinatives for stomatal closure. The regulatory mechanisms of H2O2 production and transport under plant-pathogen interaction and drought stress response in stomata are important fields of research. Specifically, the regulation of NADPH oxidases and aquaporins appears to be crucial in H2O2-controlled stomatal closure. In this review, we summarize how the calcium-dependent and calcium-independent mechanisms activate RESPIRATORY BURST OXIDASE HOMOLOG (RBOH)D/F NADPH oxidases and the aquaporin PIP2;1 to induce stomatal closure, and highlight how the H2O2 production is targeted by pathogen toxins and effectors to counteract plant immunity.
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Affiliation(s)
- Olivier Rodrigues
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA; Unité de Recherche Physiologie, Pathologie et Génétique Végétales, Université Fédérale Toulouse Midi-Pyrénées, INP-PURPAN, F-31076 Toulouse, France.
| | - Libo Shan
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA.
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27
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Jia Y, Niu Y, Zhao H, Wang Z, Gao C, Wang C, Chen S, Wang Y. Hierarchical transcription factor and regulatory network for drought response in Betula platyphylla. HORTICULTURE RESEARCH 2022; 9:uhac040. [PMID: 35184174 PMCID: PMC9070641 DOI: 10.1093/hr/uhac040] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 01/03/2022] [Accepted: 02/05/2022] [Indexed: 05/16/2023]
Abstract
Although many genes and biological processes involved in abiotic stress response have been identified, how they are regulated remains largely unclear. Here, to study the regulatory mechanism of birch (Betula platyphylla) responding to drought induced by polyethylene glycol (PEG) 6000 (20%, w/v), a partial correlation coefficient-based algorithm for constructing gene regulatory network (GRN) was proposed, and a three-layer hierarchical GRN was constructed, including 68 transcription factors (TFs), and 252 structural genes. Totally, 1448 predicted regulatory relationships are included, and most of them are novel. The reliability of GRN was verified by ChIP-PCR and qRT-PCR based on transient transformation. About 55% of genes in the bottom layer of GRN could confer drought tolerance. We selected the two TFs, BpMADS11 and BpNAC090, from the up layer and characterized their function in drought tolerance. Overexpression of BpMADS11 and BpNAC090 both reduces electrolyte leakage, ROS and MDA contents, displaying increased drought tolerance than wild-type birch. According to this GRN, the important biological processes involved in drought were identified, including "signaling hormone pathways", "water transport", "regulation of stomatal movement" and "response to oxidative stress". This work indicated that BpERF017, BpAGL61 and BpNAC090 are the key upstream regulators in birch drought tolerance. Our data clearly revealed the upstream regulators and TF-DNA interaction regulate different biological processes to adapt drought stress.
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Affiliation(s)
- Yaqi Jia
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Yani Niu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Huimin Zhao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Zhibo Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Caiqiu Gao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Chao Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Su Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Yucheng Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
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28
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Reis ADP, Carvalho RF, Costa IB, Girio RJS, Gualberto R, Spers RC, Gaion LA. Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants. BRAZ J BIOL 2022; 82:e267343. [DOI: 10.1590/1519-6984.267343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 10/26/2022] [Indexed: 11/16/2022] Open
Abstract
Abstract It has long been hypothesized that hydrogen peroxide (H2O2) may play an essential role in root-to-shoot long-distance signaling during drought conditions. Thus, to better understand the involvement of H2O2 in drought signaling, two experiments were carried out using tomato plants. In the first experiment, a split-root scheme was used, while in the second experiment, the tomato plants were grown in a single pot and subjected to drought stress. In both experiments, H2O2 and catalase were applied together with irrigation. Control plants continued to be irrigated according to the water loss. In the split-root experiment, it was verified that the application of H2O2 to roots induced a clear reduction in plant transpiration compared to untreated or catalase-treated plants. In the second experiment, we observed that H2O2-treated plants exhibited similar transpiration when compared to untreated and catalase-treated plants under drought stress. Similarly, no difference in water use efficiency was observed. Thus, we conclude that the increase in H2O2 in the root system can act as a long-distance signal leading to reduced transpiration even when there is no water limitation in the shoot. But it has little effect when there is a reduction in the shoot water potential.
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29
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Liu Y, Zhang H. Reactive oxygen species and nitric oxide as mediators in plant hypersensitive response and stomatal closure. PLANT SIGNALING & BEHAVIOR 2021; 16:1985860. [PMID: 34668846 PMCID: PMC9208772 DOI: 10.1080/15592324.2021.1985860] [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: 07/25/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 05/31/2023]
Abstract
Nitric oxide (NO) and reactive oxygen species (ROS) have attracted considerable interest from plant pathologists since they regulate plant defenses via the hypersensitive response (HR) and stomatal closure. Here, we introduce the regulatory mechanisms of NO and ROS bursts and discuss the role of such bursts in HR and stomatal closure. It showed that epidermal sections of leaves respond to pathogens by the rapid and intense production of intracellular ROS and NO. Oxidative stress and H2O2 induce stomatal closure. Catalase and peroxidase-deficient plants are also hyperresponsive to pathogen invasion, suggesting a role for H2O2 in HR-mediated cell death. The analysis reveals that ROS and NO play important roles in stomatal closure and HR that involves multiple pathways. Therefore, multi-disciplinary and multi-omics combined analysis is crucial to the advancement of ROS and NO research and their role in plant defense mechanism.
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Affiliation(s)
- Yingjun Liu
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Hefei, Anhui, China
| | - Huajian Zhang
- Department of Plant Pathology, College of Plant Protection, Anhui Agricultural University, Anhui Province Key Laboratory of Crop Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Hefei, Anhui, China
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30
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Differential modulation of photosynthesis and defense strategies towards copper toxicity in primary and cotyledonary leaves of Ricinus communis L. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2021. [DOI: 10.1016/j.jpap.2021.100059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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31
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García-Caparrós P, De Filippis L, Gul A, Hasanuzzaman M, Ozturk M, Altay V, Lao MT. Oxidative Stress and Antioxidant Metabolism under Adverse Environmental Conditions: a Review. THE BOTANICAL REVIEW 2021; 87:421-466. [PMID: 0 DOI: 10.1007/s12229-020-09231-1] [Citation(s) in RCA: 117] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/01/2020] [Indexed: 05/25/2023]
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Role of Reactive Oxygen Species and Hormones in Plant Responses to Temperature Changes. Int J Mol Sci 2021; 22:ijms22168843. [PMID: 34445546 PMCID: PMC8396215 DOI: 10.3390/ijms22168843] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/04/2021] [Accepted: 08/11/2021] [Indexed: 12/22/2022] Open
Abstract
Temperature stress is one of the major abiotic stresses that adversely affect agricultural productivity worldwide. Temperatures beyond a plant's physiological optimum can trigger significant physiological and biochemical perturbations, reducing plant growth and tolerance to stress. Improving a plant's tolerance to these temperature fluctuations requires a deep understanding of its responses to environmental change. To adapt to temperature fluctuations, plants tailor their acclimatory signal transduction events, and specifically, cellular redox state, that are governed by plant hormones, reactive oxygen species (ROS) regulatory systems, and other molecular components. The role of ROS in plants as important signaling molecules during stress acclimation has recently been established. Here, hormone-triggered ROS produced by NADPH oxidases, feedback regulation, and integrated signaling events during temperature stress activate stress-response pathways and induce acclimation or defense mechanisms. At the other extreme, excess ROS accumulation, following temperature-induced oxidative stress, can have negative consequences on plant growth and stress acclimation. The excessive ROS is regulated by the ROS scavenging system, which subsequently promotes plant tolerance. All these signaling events, including crosstalk between hormones and ROS, modify the plant's transcriptomic, metabolomic, and biochemical states and promote plant acclimation, tolerance, and survival. Here, we provide a comprehensive review of the ROS, hormones, and their joint role in shaping a plant's responses to high and low temperatures, and we conclude by outlining hormone/ROS-regulated plant responsive strategies for developing stress-tolerant crops to combat temperature changes.
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33
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The Genetic Regulation of Secondary Metabolic Pathways in Response to Salinity and Drought as Abiotic Stresses. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11156668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Global development has generated a plethora of unfavorable and adverse environmental factors for the living organisms in the ecosystem. Plants are sessile organisms, and they are crucial to sustain life on earth. Since plants are sessile, they face a great number of environmental challenges related to abiotic stresses, such as temperature fluctuation, drought, salinity, flood and metal contamination. Salinity and drought are considered major abiotic stresses that negatively affect the plants’ growth and production of useful content. However, plants have evolved various molecular mechanisms to increase their tolerance to these environmental stresses. There is a whole complex system of communication (cross-talk) through massive signaling cascades that are activated and modulated in response to salinity and drought. Secondary metabolites are believed to play significant roles in the plant’s response and resistance to salinity and drought stress. Until recently, attempts to unravel the biosynthetic pathways were limited mainly due to the inadequate plant genomics resources. However, recent advancements in generating high-throughput “omics” datasets, computational tools and functional genomics approach integration have aided in the elucidation of biosynthetic pathways of many plant bioactive metabolites. This review gathers comprehensive knowledge of plants’ complex system that is involved in the response and resistance to salinity and water deficit stresses as abiotic stress. Additionally, it offers clues in determining the genes involved in this complex and measures its activity. It covers basic information regarding the signaling molecules involved in salinity and drought resistance and how plant hormones regulate the cross-talking mechanism with emphasis on transcriptional activity. Moreover, it discusses many studies that illustrate the relationship between salinity and drought and secondary metabolite production. Furthermore, several transcriptome analysis research papers of medicinal plants are illustrated. The aim of this review is to be a key for any researcher that is aspiring to study the relationship between salinity and drought stresses and secondary metabolite production at the transcriptome and transcription level.
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The Effect of Exogenous Application of Quercetin Derivative Solutions on the Course of Physiological and Biochemical Processes in Wheat Seedlings. Int J Mol Sci 2021; 22:ijms22136882. [PMID: 34206953 PMCID: PMC8269177 DOI: 10.3390/ijms22136882] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 11/21/2022] Open
Abstract
Quercetin, classified as a flavonoid, is a strong antioxidant that plays a significant role in the regulation of physiological processes in plants, which is particularly important in the case of biotic and abiotic stresses. The study investigated the effect of the use of potassium quercetin solutions in various concentrations (0.5%, 1.0%, 3.0% and 5.0%) on the physiological and biochemical properties of wheat seedlings. A pot experiment was carried out in order to determine the most beneficial dose of this flavonoid acting as a bio-stimulant for wheat plants. Spraying with quercetin derivative solutions was performed twice, and physiological measurements (chlorophyll content and fluorescence as well as gas exchange) were carried out on the first and seventh days after each application. The total phenolic compounds content and the total antioxidant capacity were also determined. It was shown that the concentrations of potassium quercetin applied have a stimulating effect on the course of physiological processes. In the case of most of the tested physiological parameters (chlorophyll content and fluorescence and gas exchange) and the total antioxidant capacity, no significant differences were observed in their increase as a result of application with concentrations of 3.0 and 5.0%. Therefore, the beneficial effect of quercetin on the analysed parameters is already observed when spraying with a concentration of 3.0%.
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Liu H, Xue S. Interplay between hydrogen sulfide and other signaling molecules in the regulation of guard cell signaling and abiotic/biotic stress response. PLANT COMMUNICATIONS 2021; 2:100179. [PMID: 34027393 PMCID: PMC8132131 DOI: 10.1016/j.xplc.2021.100179] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 05/05/2023]
Abstract
Stomatal aperture controls the balance between transpirational water loss and photosynthetic carbon dioxide (CO2) uptake. Stomata are surrounded by pairs of guard cells that sense and transduce environmental or stress signals to induce diverse endogenous responses for adaptation to environmental changes. In a recent decade, hydrogen sulfide (H2S) has been recognized as a signaling molecule that regulates stomatal movement. In this review, we summarize recent progress in research on the regulatory role of H2S in stomatal movement, including the dynamic regulation of phytohormones, ion homeostasis, and cell structural components. We focus especially on the cross talk among H2S, nitric oxide (NO), and hydrogen peroxide (H2O2) in guard cells, as well as on H2S-mediated post-translational protein modification (cysteine thiol persulfidation). Finally, we summarize the mechanisms by which H2S interacts with other signaling molecules in plants under abiotic or biotic stress. Based on evidence and clues from existing research, we propose some issues that need to be addressed in the future.
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Affiliation(s)
- Hai Liu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shaowu Xue
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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Zhang R, Zhao T, Zheng B, Zhang Y, Li X, Zhang F, Cen J, Duan S. Curcumin Derivative Cur20 Attenuated Cerebral Ischemic Injury by Antioxidant Effect and HIF-1α/VEGF/TFEB-Activated Angiogenesis. Front Pharmacol 2021; 12:648107. [PMID: 33935747 PMCID: PMC8082391 DOI: 10.3389/fphar.2021.648107] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/12/2021] [Indexed: 11/14/2022] Open
Abstract
In this paper, a curcumin derivative Cur20 was synthesized for better hydrolytic stability, which showed a higher angiogenic effect on zebrafish model than curcumin. In order to reveal the potential effects on neuroprotection, a mouse model of vascular dementia (VaD) induced by permanent right common carotid artery occlusion (rUCCAO) was established. After two weeks of curcumin administration, the cognitive function of mice was detected by Morris water maze and Y maze. The alteration on oxidative injuries and morphological damage were also analyzed by reactive oxygen species, superoxide dismutase, GSH, malondialdehyde tests, and Nissl stain on cortex/hippocampus. The angiogenesis and related signal factors were evaluated as well. The results showed that Cur20 significantly attenuated the cognitive dysfunction and histopathological changes of the VaD mice with enhanced antioxidant system and angiogenesis. In addition, primary rat brain microvessel endothelial cells (rBMECs) with oxygen glucose deprivation (OGD) were applied to further verify the possible mechanisms of Cur20-induced angiogenesis. The results demonstrated that the proliferation effect and the activation of pro-angiogenesis factors such as HIF-1α, VEGF, and TFEB might contribute to the protection of ischemic injury. Based on the above, our conclusion is that Cur20 can be considered as a promising therapeutic strategy for VaD.
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Affiliation(s)
- Runfang Zhang
- Key Laboratory of Natural Medicine and Immune Engineering, School of Pharmacy, Henan University, Kaifeng, China
| | - Tingkui Zhao
- Key Laboratory of Natural Medicine and Immune Engineering, School of Pharmacy, Henan University, Kaifeng, China
| | - Beibei Zheng
- Key Laboratory of Natural Medicine and Immune Engineering, School of Pharmacy, Henan University, Kaifeng, China
| | - Yun Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Xiaohui Li
- Department of Neurology, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Feng Zhang
- Key Laboratory of Natural Medicine and Immune Engineering, School of Pharmacy, Henan University, Kaifeng, China
| | - Juan Cen
- Key Laboratory of Natural Medicine and Immune Engineering, School of Pharmacy, Henan University, Kaifeng, China
| | - Shaofeng Duan
- Key Laboratory of Natural Medicine and Immune Engineering, School of Pharmacy, Henan University, Kaifeng, China.,Henan International Joint Laboratory of Chinese Medicine Efficacy, Henan University, Kaifeng, China
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Ma X, Bai L. Elevated CO 2 and Reactive Oxygen Species in Stomatal Closure. PLANTS 2021; 10:plants10020410. [PMID: 33672284 PMCID: PMC7926597 DOI: 10.3390/plants10020410] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/10/2021] [Accepted: 02/16/2021] [Indexed: 01/25/2023]
Abstract
Plant guard cell is essential for photosynthesis and transpiration. The aperture of stomata is sensitive to various environment factors. Carbon dioxide (CO2) is an important regulator of stomatal movement, and its signaling includes the perception, transduction and gene expression. The intersections with many other signal transduction pathways make the regulation of CO2 more complex. High levels of CO2 trigger stomata closure, and reactive oxygen species (ROS) as the key component has been demonstrated function in this regulation. Additional research is required to understand the underlying molecular mechanisms, especially for the detailed signal factors related with ROS in this response. This review focuses on Arabidopsis stomatal closure induced by high-level CO2, and summarizes current knowledge of the role of ROS involved in this process.
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Affiliation(s)
| | - Ling Bai
- Correspondence: ; Tel.: +86-13653782901
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Waqas M, Yaning C, Iqbal H, Shareef M, Rehman HU, Bilal HM. Synergistic consequences of salinity and potassium deficiency in quinoa: Linking with stomatal patterning, ionic relations and oxidative metabolism. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 159:17-27. [PMID: 33310530 DOI: 10.1016/j.plaphy.2020.11.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/05/2020] [Indexed: 06/12/2023]
Abstract
Quinoa emerged as an ideal food security crop due to its exceptional nutritive profile and stress enduring potential and also deemed as model plant to study the salt-tolerance mechanisms. However to fill the research gaps of this imperative crop, the present work aimed to study the effect of potassium (K) deficiency either separately or in combination with salinity. First, we investigated the stomatal and physiological based variations in quinoa growth under salinity and K, then series of analytical tools were used with model approach to interpret the stomatal aperture (SA) and photosynthesis (Pn) changes. Results revealed that quinoa efficiently deployed antioxidants to scavenge the excessive reactive oxygen species (ROS), had high uptake and retention of K+, Ca2+, Mg2+ with Cl⁻ as charge balancing ion, increased stomata density (SD) and declined the SA to maintain the Pn which resulted the improved growth under salinity. Whereas, K-deficiency caused the stunted growth more severally under salinity due to disruption in ionic homeostasis, excessive ROS production elicited the oxidative damages, SD and SA reduced and ultimately declined in Pn. Our best fitted regression model explored that dependent variables like Pn and SA changed according to theirs signified explanatory variables with quantification per unit based as stomatal conductance (Gs, 51), SD (0.05), ROS (-0.79) and K+ (0.08), Cl⁻ (0.34) and Na+ (- 0.52) respectively. Overall, moderate salinity promoted the quinoa growth, while K-deficiency particularly with salinity reduced the quinoa performance by affecting stomatal and non-stomatal factors.
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Affiliation(s)
- Muhammad Waqas
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; Xinjiang Institute of Ecology and Geography, University of Chinese Academy of Sciences, Beijing, China; Department of Environmental Sciences, University of Okara, Punjab, Pakistan.
| | - Chen Yaning
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.
| | - Hassan Iqbal
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; Xinjiang Institute of Ecology and Geography, University of Chinese Academy of Sciences, Beijing, China
| | - Muhammad Shareef
- Cele National Station for Desert and Grassland Observation and Research, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; Department of Botany, Division of Science and Technology, University of Education Lahore, Pakistan; Department of Botany, Hameeda Rasheed Institute of Science and Technology, Multan, Pakistan
| | - Hafeez Ur Rehman
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan
| | - Hafiz Muhammad Bilal
- Department of Environmental Sciences, University of Okara, Punjab, Pakistan; PARC-Arid Zone Research Institute, Umerkot, Sindh, Pakistan
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Shah AN, Tanveer M, Abbas A, Fahad S, Baloch MS, Ahmad MI, Saud S, Song Y. Targeting salt stress coping mechanisms for stress tolerance in Brassica: A research perspective. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 158:53-64. [PMID: 33296846 DOI: 10.1016/j.plaphy.2020.11.044] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/18/2020] [Indexed: 05/02/2023]
Abstract
Brassica genus comprises numerous cultivated brassica species with various economic importance. Salt stress is an overwhelming problem causing serious losses in Brassica species (e.g. B. napus, B. rapa, B. oleracea, B. juncea) growth and grain yield production by inducing ionic and ROS toxicity. Given that a significant variation exists in salt tolerance level in Brassica genus, Brassica species exhibited numerous salt tolerance mechanisms which were either overlooked or given less importance to improve and understand innate salt stress tolerance mechanism in Brassica species. In this review, we tried to highlight the importance and recent findings relating to some overlooked and potential mechanisms such as role of neurotransmitters, and role of cytosolic Ca2+ and ROS as signaling elements to enhance salt stress tolerance. Studies revealed that salt tolerant brassica species retained more K+ in leaf mesophyll which confers overall salinity tolerance in salt tolerance brassica species. Neurotransmitter such as melatonin, dopamiane and eATP regulates K+ and Ca2+ permeable ion channels and plays a very crucial role in ionic homeostasis under salinity stress in brassica. At the end, the numerous possible salt stress agronomic strategies were also discussed to mitigate the severity of the salt stress in Brassica species.
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Affiliation(s)
- Adnan Noor Shah
- School of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Mohsin Tanveer
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, Australia
| | - Asad Abbas
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Shah Fahad
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou, 570228, Hainan, China; Department of Agronomy, The University of Haripur, Haripur, 22620, Pakistan
| | - Mohammad Safdar Baloch
- Department of Agronomy, Faculty of Agriculture, Gomal University, Dera Ismail Khan, 29050, KPK, Pakistan
| | | | - Shah Saud
- Department of Horticulture, Northeast Agricultural University, Harbin, 150030, China
| | - Youhong Song
- School of Agronomy, Anhui Agricultural University, Hefei, 230036, China.
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Michailidis M, Karagiannis E, Tanou G, Samiotaki M, Tsiolas G, Sarrou E, Stamatakis G, Ganopoulos I, Martens S, Argiriou A, Molassiotis A. Novel insights into the calcium action in cherry fruit development revealed by high-throughput mapping. PLANT MOLECULAR BIOLOGY 2020; 104:597-614. [PMID: 32909183 DOI: 10.1007/s11103-020-01063-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/27/2020] [Indexed: 05/26/2023]
Abstract
This work provides the first system-wide datasets concerning metabolic changes in calcium-treated fruits, which reveal that exogenously applied calcium may specifically reprogram sweet cherry development and ripening physiognomy. Calcium modulates a wide range of plant developmental processes; however, the regulation of fruit ripening by calcium remains largely uncharacterized. In this study, transcriptome, proteome and metabolome profiling was used to document the responses of sweet cherry fruit to external calcium application (0.5% CaCl2) at 15, 27 and 37 days after full blossom. Endogenous calcium loading in fruit across development following external calcium feeding was accompanied by a reduction in respiration rate. Calcium treatment strongly impaired water-induced fruit cracking tested by two different assays, and this effect depended on the fruit size, water temperature and light/dark conditions. Substantial changes in the levels of numerous polar/non-polar primary and secondary metabolites, including malic acid, glucose, cysteine, epicatechin and neochlorogenic acid were noticed in fruits exposed to calcium. At the onset of ripening, we identified various calcium-affected genes, including those involved in ubiquitin and cysteine signaling, that had not been associated previously with calcium function in fruit biology. Calcium specifically increased the abundance of a significant number of proteins that classified as oxidoreductases, transferases, hydrolases, lyases, and ligases. The overview of temporal changes in gene expression and corresponding protein abundance provided by interlinked analysis revealed that oxidative phosphorylation, hypersensitive response, DNA repair, stomata closure, biosynthesis of secondary metabolites, and proton-pump activity were mainly affected by calcium. This report provides the fullest characterization of expression patterns in calcium-responsive genes, proteins and metabolites currently available in fruit ripening and will serve as a blueprint for future biological endeavors.
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Affiliation(s)
- Michail Michailidis
- Laboratory of Pomology, School of Agriculture, Aristotle University of Thessaloniki, 57001, Thermi, Greece
| | - Evangelos Karagiannis
- Laboratory of Pomology, School of Agriculture, Aristotle University of Thessaloniki, 57001, Thermi, Greece
| | - Georgia Tanou
- Institute of Soil and Water Resources, ELGO-DEMETER, 57001, Thessaloniki, Greece
| | - Martina Samiotaki
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming", 16672, Vari, Greece
| | - George Tsiolas
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thermi, 570 01, Thessaloniki, Greece
| | - Eirini Sarrou
- Institute of Plant Breeding and Genetic Resources, ELGO-DEMETER, 57001, Thessaloniki, Greece
| | - George Stamatakis
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming", 16672, Vari, Greece
| | - Ioannis Ganopoulos
- Institute of Plant Breeding and Genetic Resources, ELGO-DEMETER, 57001, Thessaloniki, Greece
| | - Stefans Martens
- Department of Food Quality and Nutrition, Centro Ricerca e Innovazione, Fondazione Edmund Mach, 38010 San Michele all'Adige, Trento, Italy
| | - Anagnostis Argiriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thermi, 570 01, Thessaloniki, Greece
| | - Athanassios Molassiotis
- Laboratory of Pomology, School of Agriculture, Aristotle University of Thessaloniki, 57001, Thermi, Greece.
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Bai Y, Guo J, Reiter RJ, Wei Y, Shi H. Melatonin synthesis enzymes interact with ascorbate peroxidase to protect against oxidative stress in cassava. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5645-5655. [PMID: 32474586 DOI: 10.1093/jxb/eraa267] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Melatonin is an important indole amine hormone in animals and plants. The enzymes that catalyse melatonin synthesis positively regulate plant stress responses through modulation of the accumulation of reactive oxygen species (ROS). However, the relationship between melatonin biosynthetic enzymes and ROS-scavenging enzymes has not been characterized. In this study, we demonstrate that two enzymes of the melatonin synthesis pathway in Manihot esculenta (MeTDC2 and MeASMT2) directly interact with ascorbate peroxidase (MeAPX2) in both in vitro and in vivo experiments. Notably, in the presence of MeTDC2 and MeASMT2, MeAPX2 showed significantly higher activity and antioxidant capacity than the purified MeAPX2 protein alone. These findings indicate that MeTDC2-MeAPX2 and MeASMT2-MeAPX2 interactions both activate APX activity and increase antioxidant capacity. In addition, the combination of MeTDC2, MeASMT2, and MeAPX2 conferred improved resistance to hydrogen peroxide in Escherichia coli. Moreover, this combination also positively regulates oxidative stress tolerance in cassava. Taken together, these findings not only reveal a direct interaction between MeTDC2, MeASMT2, and MeAPX2, but also highlight the importance of this interaction in regulating redox homoeostasis and stress tolerance in cassava.
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Affiliation(s)
- Yujing Bai
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan province, China
| | - Jingru Guo
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan province, China
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health San Antonio, San Antonio, TX, USA
| | - Yunxie Wei
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan province, China
| | - Haitao Shi
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan province, China
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Zheng M, Zhu C, Yang T, Qian J, Hsu YF. GSM2, a transaldolase, contributes to reactive oxygen species homeostasis in Arabidopsis. PLANT MOLECULAR BIOLOGY 2020; 104:39-53. [PMID: 32564178 DOI: 10.1007/s11103-020-01022-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
Plants are exposed to various environmental cues that lead to reactive oxygen species (ROS) accumulation. ROS production and detoxification are tightly regulated to maintain balance. Although studies of glucose (Glc) are always accompanied by ROS in animals, the role of Glc in respect of ROS in plants is unclear. We isolated gsm2 (Glc-hypersensitive mutant 2), a mutant with a notably chlorotic-cotyledon phenotype. The chloroplast-localized GSM2 was characterized as a transaldolase in the pentose phosphate pathway. With 3% Glc treatment, fewer or no thylakoids were observed in gsm2 cotyledon chloroplasts than in wild-type cotyledon chloroplasts, suggesting that GSM2 is required for chloroplast protection under stress. gsm2 also showed evaluated accumulation of ROS with 3% Glc treatment and was more sensitive to exogenous H2O2 than the wild type. Gene expression analysis of the antioxidant enzymes in gsm2 revealed that chloroplast damage to gsm2 cotyledons results from the accumulation of excessive ROS in response to Glc. Moreover, the addition of diphenyleneiodonium chloride or phenylalanine can rescue Glc-induced chlorosis in gsm2 cotyledons. This work suggests that GSM2 functions to maintain ROS balance in response to Glc during early seedling growth and sheds light on the relationship between Glc, the pentose phosphate pathway and ROS.
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Affiliation(s)
- Min Zheng
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Southwest University, Chongqing, 400715, China
| | - Chunyan Zhu
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Southwest University, Chongqing, 400715, China
| | - Tingting Yang
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Southwest University, Chongqing, 400715, China
| | - Jie Qian
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Southwest University, Chongqing, 400715, China
| | - Yi-Feng Hsu
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China.
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Southwest University, Chongqing, 400715, China.
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Shan C, Wang B, Sun H, Gao S, Li H. H 2S induces NO in the regulation of AsA-GSH cycle in wheat seedlings by water stress. PROTOPLASMA 2020; 257:1487-1493. [PMID: 32399723 DOI: 10.1007/s00709-020-01510-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 04/09/2020] [Indexed: 05/12/2023]
Abstract
In current study, we investigated the relationship between hydrogen sulfide (H2S) and nitric oxide (NO) in the regulation of ascorbate-glutathione (AsA-GSH) cycle in wheat seedlings by water stress. Findings showed that water stress significantly stimulated the production of H2S and NO, the transcript levels and activities of enzymes in AsA-GSH cycle, as well as malondialdehyde (MDA) production and electrolyte leakage, but significantly decreased AsA/DHA and GSH/GSSG. Meanwhile, water stress significantly decreased plant height and dry biomass. Except MDA and electrolyte leakage, above changes induced by water stress were reversed by H2S synthesis inhibitor aminooxyacetic acid (AOA) and NO synthesis inhibitor NG-nitro-L-arginine methyl ester (L-NAME). However, AOA and L-NAME significantly enhanced MDA production and electrolyte leakage, which further decreased plant height and dry biomass of wheat seedlings under water stress. Application of exogenous H2S donor sodium hydrosulfide (NaHS) to AOA-treated plants and application of exogenous NO donor sodium nitroprusside (SNP) to L-NAME-treated plants reversed above effects of AOA and L-NAME, respectively. Application of L-NAME plus water stress significantly decreased NO production induced by water stress. However, application of L-NAME plus water stress had no obvious influence on H2S production induced by water stress, while application of AOA plus water stress significantly reduced the production of H2S and NO induced by water stress. Current findings suggested that H2S acted upstream of NO in the regulation of AsA-GSH cycle in wheat seedlings by water stress.
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Affiliation(s)
- Changjuan Shan
- Henan Institute of Science and Technology, Xinxiang, 453003, China.
| | - Baoshi Wang
- Henan Institute of Science and Technology, Xinxiang, 453003, China
| | - Haili Sun
- Henan Institute of Science and Technology, Xinxiang, 453003, China
| | - Shang Gao
- Henan Institute of Science and Technology, Xinxiang, 453003, China
| | - Hua Li
- School of Life Sciences, Henan University, Kaifeng, 475004, China.
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Cen J, Jia ZL, Zhu CY, Wang XF, Zhang F, Chen WY, Liu KC, Li SY, Zhang Y. Particulate matter (PM10) induces cardiovascular developmental toxicity in zebrafish embryos and larvae via the ERS, Nrf2 and Wnt pathways. CHEMOSPHERE 2020; 250:126288. [PMID: 32114347 DOI: 10.1016/j.chemosphere.2020.126288] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/13/2020] [Accepted: 02/19/2020] [Indexed: 05/02/2023]
Abstract
Particulate matter (PM10) is one of the most important indicators of the pollution that characterizes air quality. Epidemiological studies have shown that PM10 can cause cardiovascular-related diseases in the population. And, we studied the developmental toxicity of PM10 and the underlying mechanism of its effects on the cardiovascular system of zebrafish embryo/larva. Changes in cardiac morphology, sinus venosus and bulbus arteriosus (SV-BA) distance, heart rate, vascular subintestinalis, blood flow, returned blood volume, and reactive oxygen species (ROS) level were measured, and changes in the expression levels of certain genes were assessed via RT-PCR. The results showed that PM10 caused a significant increase in pericardial sac area and SV-BA distance, a decrease in heart rate, inhibition of vascular subintestinalis growth, blood flow obstruction, reduced venous return, and other cardiovascular toxicities. PM10 induced an increase in the ROS level and significant increases in the expression levels of ERS signalling pathway factors and Nrf2 signalling pathway factors. The expression levels of the Wnt pathway-related genes also showed significant changes. Furthermore, ROS inhibitor N-Acetyl-l-cysteine (NAC) could ameliorate the cardiovascular toxicity of PM10 in zebrafish larvae. It is speculated that PM10 may result in cardiovascular toxicity by inducing higher ROS levels in the body, which could then induce ERS and lead to defects in the expression of genes related to the Wnt signalling pathway. The Nrf2 signalling pathway was activated as a stress compensatory mechanism during the early stage of PM10-induced cardiovascular injury. However, it was insufficient to counteract the PM10-induced cardiovascular toxicity.
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Affiliation(s)
- Juan Cen
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan Province, PR China
| | - Zhi-Li Jia
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan Province, PR China; Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, PR China
| | - Cheng-Yue Zhu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, PR China
| | | | - Feng Zhang
- College of Pharmacy, Henan University, Kaifeng, Henan Province, PR China
| | - Wei-Yun Chen
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, PR China
| | - Ke-Chun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, PR China
| | - Sai-Yu Li
- Shandong Analysis and Test Center, Jinan, Shandong Province, PR China.
| | - Yun Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, PR China.
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Zhang L, Li D, Yao Y, Zhang S. H 2O 2, Ca 2+, and K + in subsidiary cells of maize leaves are involved in regulatory signaling of stomatal movement. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 152:243-251. [PMID: 32449683 DOI: 10.1016/j.plaphy.2020.04.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/11/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
The stomata of maize (Zea mays) contain a pair of guard cells and a pair of subsidiary cells. To determine whether H2O2, Ca2+, and K+ in subsidiary cells were involved in stomatal movement, we treated four-week-old maize (Zhengdan 958) leaves with H2O2, diphenylene iodonium (DPI), CaCl2, and LaCl3. Changes in content and distribution of H2O2, Ca2+, and K+ during stomatal movement were observed. When exogenous H2O2 was applied, Ca2+ increased and K+ decreased in guard cells, while both ions increased in subsidiary cells, leading to stomatal closure. After DPI treatment, Ca2+ decreased and K+ increased in guard cells, but both Ca2+ and K+ decreased in subsidiary cells, resulting in open stomata. Exogenous CaCl2 increased H2O2 and reduced K+ in guard cells, while significantly increasing them in subsidiary cells and causing stomatal closure. After LaCl3 treatment, H2O2 decreased and K+ increased in guard cells, whereas both decreased in subsidiary cells and stomata became open. Results indicate that H2O2 and Ca2+ correlate positively with each other and with K+ in subsidiary cells during stomatal movement. Both H2O2 and Ca2+ in subsidiary cells promote an inflow of K+, indirectly regulating stomatal closure.
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Affiliation(s)
- Li Zhang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, 712100, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dongyang Li
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yaqin Yao
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Suiqi Zhang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, 712100, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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Yu SG, Kim JH, Cho NH, Oh TR, Kim WT. Arabidopsis RING E3 ubiquitin ligase JUL1 participates in ABA-mediated microtubule depolymerization, stomatal closure, and tolerance response to drought stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:824-842. [PMID: 32314432 DOI: 10.1111/tpj.14775] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/28/2020] [Accepted: 03/31/2020] [Indexed: 05/20/2023]
Abstract
Ubiquitination is a critical post-translational protein modification that has been implicated in diverse cellular processes, including abiotic stress responses, in plants. In the present study, we identified and characterized a T-DNA insertion mutant in the At5g10650 locus. Compared to wild-type Arabidopsis plants, at5g10650 progeny were hyposensitive to ABA at the germination stage. At5g10650 possessed a single C-terminal C3HC4-type Really Interesting New Gene (RING) motif, which was essential for ABA-mediated germination and E3 ligase activity in vitro. At5g10650 was closely associated with microtubules and microtubule-associated proteins in Arabidopsis and tobacco leaf cells. Localization of At5g10650 to the nucleus was frequently observed. Unexpectedly, At5g10650 was identified as JAV1-ASSOCIATED UBIQUITIN LIGASE1 (JUL1), which was recently reported to participate in the jasmonate signaling pathway. The jul1 knockout plants exhibited impaired ABA-promoted stomatal closure. In addition, stomatal closure could not be induced by hydrogen peroxide and calcium in jul1 plants. jul1 guard cells accumulated wild-type levels of H2 O2 after ABA treatment. These findings indicated that JUL1 acts downstream of H2 O2 and calcium in the ABA-mediated stomatal closure pathway. Typical radial arrays of microtubules were maintained in jul1 guard cells after exposure to ABA, H2 O2 , and calcium, which in turn resulted in ABA-hyposensitive stomatal movements. Finally, jul1 plants were markedly more susceptible to drought stress than wild-type plants. Overall, our results suggest that the Arabidopsis RING E3 ligase JUL1 plays a critical role in ABA-mediated microtubule disorganization, stomatal closure, and tolerance to drought stress.
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Affiliation(s)
- Seong Gwan Yu
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Jong Hum Kim
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Na Hyun Cho
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Tae Rin Oh
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Woo Taek Kim
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
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Li X, Chen Y, Zhang X, Zhao Y. Fabrication of biodegradable auto-fluorescent organosilica nanoparticles with dendritic mesoporous structures for pH/redox-responsive drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110914. [PMID: 32409066 DOI: 10.1016/j.msec.2020.110914] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 01/08/2020] [Accepted: 03/31/2020] [Indexed: 01/09/2023]
Abstract
In this work, disulfide-bridged organic silica (OS) based nanocarriers were constructed for drug release. The broken of SS bonds in Si-O-Si skeleton would improve the degradation of Si-O-Si of OS carriers. The OS carriers have a central-radiated dendritic porous structure and a large specific surface area of 453.80 m2g-1. The dextrin was selectively oxidized to dialdehyde dextrin (DAD) and then was modified on the surface of OS carriers by Schiff base bonds. Subsequently, cystamine (Cys) was linked with DAD to form DAD/Cys layer (OS-N=C-DAD/Cys) to seal the loaded drug. The DAD/Cys layer display the degradation performance of pH/GSH dual response The obtained OS-N=C-DAD/Cys carriers displayed low premature and the cumulative release was 6.5% under normal physiological conditions within 48 h. The Schiff base (-N=C-) structure in the DAD/Cys layer is also capable of monitoring acid-responsive drug release by fluorescence change. The prepared OS-N=C-DAD/Cys carriers and their degraded products have high biocompatibility.
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Affiliation(s)
- Xinli Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Yunyun Chen
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Xu Zhang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Yanbao Zhao
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
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He J, Zhang RX, Kim DS, Sun P, Liu H, Liu Z, Hetherington AM, Liang YK. ROS of Distinct Sources and Salicylic Acid Separate Elevated CO 2-Mediated Stomatal Movements in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2020; 11:542. [PMID: 32457781 PMCID: PMC7225777 DOI: 10.3389/fpls.2020.00542] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 04/09/2020] [Indexed: 05/12/2023]
Abstract
Elevated CO2 (eCO2) often reduces leaf stomatal aperture and density thus impacts plant physiology and productivity. We have previously demonstrated that the Arabidopsis BIG protein distinguishes between the processes of eCO2-induced stomatal closure and eCO2-inhibited stomatal opening. However, the mechanistic basis of this action is not fully understood. Here we show that eCO2-elicited reactive oxygen species (ROS) production in big mutants was compromised in stomatal closure induction but not in stomatal opening inhibition. Pharmacological and genetic studies show that ROS generated by both NADPH oxidases and cell wall peroxidases contribute to eCO2-induced stomatal closure, whereas inhibition of light-induced stomatal opening by eCO2 may rely on the ROS derived from NADPH oxidases but not from cell wall peroxidases. As with JA and ABA, SA is required for eCO2-induced ROS generation and stomatal closure. In contrast, none of these three signals has a significant role in eCO2-inhibited stomatal opening, unveiling the distinct roles of plant hormonal signaling pathways in the induction of stomatal closure and the inhibition of stomatal opening by eCO2. In conclusion, this study adds SA to a list of plant hormones that together with ROS from distinct sources distinguish two branches of eCO2-mediated stomatal movements.
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Affiliation(s)
- Jingjing He
- State Key Laboratory of Hybrid Rice, Department of Plant Science, College of Life Sciences, Wuhan University, Wuhan, China
| | - Ruo-Xi Zhang
- State Key Laboratory of Hybrid Rice, Department of Plant Science, College of Life Sciences, Wuhan University, Wuhan, China
| | - Dae Sung Kim
- State Key Laboratory of Hybrid Rice, Department of Plant Science, College of Life Sciences, Wuhan University, Wuhan, China
| | - Peng Sun
- State Key Laboratory of Hybrid Rice, Department of Plant Science, College of Life Sciences, Wuhan University, Wuhan, China
| | - Honggang Liu
- State Key Laboratory of Hybrid Rice, Department of Plant Science, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zhongming Liu
- State Key Laboratory of Hybrid Rice, Department of Plant Science, College of Life Sciences, Wuhan University, Wuhan, China
| | - Alistair M. Hetherington
- School of Biological Sciences, Life Sciences Building, University of Bristol, Bristol, United Kingdom
| | - Yun-Kuan Liang
- State Key Laboratory of Hybrid Rice, Department of Plant Science, College of Life Sciences, Wuhan University, Wuhan, China
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Fei X, Li J, Kong L, Hu H, Tian J, Liu Y, Wei A. miRNAs and their target genes regulate the antioxidant system of Zanthoxylum bungeanum under drought stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 150:196-203. [PMID: 32155447 DOI: 10.1016/j.plaphy.2020.01.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 06/10/2023]
Abstract
Plants can accumulate a large amount of reactive oxygen species under adverse conditions such as drought and high temperature, which seriously affect the normal growth and development of plants. The antioxidant system can scavenge the reactive oxygen species produced under drought conditions and so mitigate oxidative damage. However, the regulation patterns of many miRNAs under drought stress are still unclear. The content of antioxidant enzymes and the expression patterns of miRNAs and their target genes related to antioxidant systems were studied under drought stress in Zanthoxylum bungeanum. The results indicate that under drought stress, POD, CAT, APX, proline, MDA and related genes all show positive responses to drought, while SOD and its genes showed a negative response. It is indicated that in the antioxidant process of Z. bungeanum, POD, CAT, and APX play a major role, and SOD plays a supporting role. In addition, GUS histochemical and RT-qPCR experimental results show that the expression levels of miRNAs and their target genes are basically negatively correlated, indicating that miRNAs can inhibit the expression of related genes and are also important regulators in the antioxidant system of Z. bungeanum. According to the expression patterns of antioxidant enzymes, miRNA and its target genes under drought stress, combined with previous research results, a model of plant antioxidant mechanism was constructed to provide a reference for further understanding of plant antioxidant mechanism.
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Affiliation(s)
- Xitong Fei
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, China; Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang, 712100, China
| | - Jingmiao Li
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, China; Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang, 712100, China
| | - Lijuan Kong
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, China; Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang, 712100, China
| | - Haichao Hu
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, China; Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang, 712100, China
| | - Jieyun Tian
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, China; Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang, 712100, China
| | - Yulin Liu
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, China; Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang, 712100, China
| | - Anzhi Wei
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, China; Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang, 712100, China.
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50
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Li JG, Fan M, Hua W, Tian Y, Chen LG, Sun Y, Bai MY. Brassinosteroid and Hydrogen Peroxide Interdependently Induce Stomatal Opening by Promoting Guard Cell Starch Degradation. THE PLANT CELL 2020; 32:984-999. [PMID: 32051210 PMCID: PMC7145500 DOI: 10.1105/tpc.19.00587] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 01/06/2020] [Accepted: 02/08/2020] [Indexed: 05/20/2023]
Abstract
Starch is the major storage carbohydrate in plants and functions in buffering carbon and energy availability for plant fitness with challenging environmental conditions. The timing and extent of starch degradation appear to be determined by diverse hormonal and environmental signals; however, our understanding of the regulation of starch metabolism is fragmentary. Here, we demonstrate that the phytohormone brassinosteroid (BR) and redox signal hydrogen peroxide (H2O2) induce the breakdown of starch in guard cells, which promotes stomatal opening. The BR-insensitive mutant bri1-116 accumulated high levels of starch in guard cells, impairing stomatal opening in response to light. The gain-of-function mutant bzr1-1D suppressed the starch excess phenotype of bri1-116, thereby promoting stomatal opening. BRASSINAZOLE-RESISTANT1 (BZR1) interacts with the basic leucine zipper transcription factor G-BOX BINDING FACTOR2 (GBF2) to promote the expression of β-AMYLASE1 (BAM1), which is responsible for starch degradation in guard cells. H2O2 induces BZR1 oxidation, enhancing the interaction between BZR1 and GBF2 to increase BAM1 transcription. Mutations in BAM1 lead to starch accumulation and reduce the effects of BR and H2O2 on stomatal opening. Overall, this study uncovers the critical roles of BR and H2O2 in regulating guard cell starch metabolism and stomatal opening.
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Affiliation(s)
- Jin-Ge Li
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, 266237, Qingdao, China
| | - Min Fan
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, 266237, Qingdao, China
| | - Wenbo Hua
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, 266237, Qingdao, China
| | - Yanchen Tian
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, 266237, Qingdao, China
| | - Lian-Ge Chen
- The Key Laboratory of Molecular and Cellular Biology, Ministry of Education, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Normal University, 050024, Shijiazhuang, China
- Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, 050024, Shijiazhuang, China
| | - Yu Sun
- The Key Laboratory of Molecular and Cellular Biology, Ministry of Education, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Normal University, 050024, Shijiazhuang, China
- Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, 050024, Shijiazhuang, China
| | - Ming-Yi Bai
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, 266237, Qingdao, China
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