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Ayaz A, Jalal A, Zhang X, Khan KA, Hu C, Li Y, Hou X. In-Depth Characterization of bZIP Genes in the Context of Endoplasmic Reticulum (ER) Stress in Brassica campestris ssp. chinensis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1160. [PMID: 38674568 PMCID: PMC11053814 DOI: 10.3390/plants13081160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024]
Abstract
Numerous studies have been conducted to investigate the genomic characterization of bZIP genes and their involvement in the cellular response to endoplasmic reticulum (ER) stress. These studies have provided valuable insights into the coordinated cellular response to ER stress, which is mediated by bZIP transcription factors (TFs). However, a comprehensive and systematic investigations regarding the role of bZIP genes and their involvement in ER stress response in pak choi is currently lacking in the existing literature. To address this knowledge gap, the current study was initiated to elucidate the genomic characteristics of bZIP genes, gain insight into their expression patterns during ER stress in pak choi, and investigate the protein-to-protein interaction of bZIP genes with the ER chaperone BiP. In total, 112 members of the BcbZIP genes were identified through a comprehensive genome-wide analysis. Based on an analysis of sequence similarity, gene structure, conserved domains, and responsive motifs, the identified BcbZIP genes were categorized into 10 distinct subfamilies through phylogenetic analysis. Chromosomal location and duplication events provided insight into their genomic context and evolutionary history. Divergence analysis estimated their evolutionary history with a predicted divergence time ranging from 0.73 to 80.71 million years ago (MYA). Promoter regions of the BcbZIP genes were discovered to exhibit a wide variety of cis-elements, including light, hormone, and stress-responsive elements. GO enrichment analysis further confirmed their roles in the ER unfolded protein response (UPR), while co-expression network analysis showed a strong relationship of BcbZIP genes with ER-stress-responsive genes. Moreover, gene expression profiles and protein-protein interaction with ER chaperone BiP further confirmed their roles and capacity to respond to ER stress in pak choi.
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Affiliation(s)
- Aliya Ayaz
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Abdul Jalal
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiaoli Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Khalid Ali Khan
- Applied College, Center of Bee Research and Its Products (CBRP), Unit of Bee Research and Honey Production, and Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Chunmei Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Ying Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xilin Hou
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
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2
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Sonsungsan P, Suratanee A, Buaboocha T, Chadchawan S, Plaimas K. Identification of Salt-Sensitive and Salt-Tolerant Genes through Weighted Gene Co-Expression Networks across Multiple Datasets: A Centralization and Differential Correlation Analysis. Genes (Basel) 2024; 15:316. [PMID: 38540375 PMCID: PMC10970189 DOI: 10.3390/genes15030316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/18/2024] [Accepted: 02/24/2024] [Indexed: 06/14/2024] Open
Abstract
Salt stress is a significant challenge that severely hampers rice growth, resulting in decreased yield and productivity. Over the years, researchers have identified biomarkers associated with salt stress to enhance rice tolerance. However, the understanding of the mechanism underlying salt tolerance in rice remains incomplete due to the involvement of multiple genes. Given the vast amount of genomics and transcriptomics data available today, it is crucial to integrate diverse datasets to identify key genes that play essential roles during salt stress in rice. In this study, we propose an integration of multiple datasets to identify potential key transcription factors. This involves utilizing network analysis based on weighted co-expression networks, focusing on gene-centric measurement and differential co-expression relationships among genes. Consequently, our analysis reveals 86 genes located in markers from previous meta-QTL analysis. Moreover, six transcription factors, namely LOC_Os03g45410 (OsTBP2), LOC_Os07g42400 (OsGATA23), LOC_Os01g13030 (OsIAA3), LOC_Os05g34050 (OsbZIP39), LOC_Os09g29930 (OsBIM1), and LOC_Os10g10990 (transcription initiation factor IIF), exhibited significantly altered co-expression relationships between salt-sensitive and salt-tolerant rice networks. These identified genes hold potential as crucial references for further investigation into the functions of salt stress response in rice plants and could be utilized in the development of salt-resistant rice cultivars. Overall, our findings shed light on the complex genetic regulation underlying salt tolerance in rice and contribute to the broader understanding of rice's response to salt stress.
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Affiliation(s)
- Pajaree Sonsungsan
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Apichat Suratanee
- Department of Mathematics, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand;
| | - Teerapong Buaboocha
- Center of Excellence in Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Supachitra Chadchawan
- Center of Excellence in Environment and Plant Physiology (CEEPP), Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
- Omics Science and Bioinformatics Center, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kitiporn Plaimas
- Omics Science and Bioinformatics Center, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Advanced Virtual and Intelligent Computing (AVIC) Center, Department of Mathematics and Computer Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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3
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Geng A, Lian W, Wang Y, Liu M, Zhang Y, Wang X, Chen G. Molecular Mechanisms and Regulatory Pathways Underlying Drought Stress Response in Rice. Int J Mol Sci 2024; 25:1185. [PMID: 38256261 PMCID: PMC10817035 DOI: 10.3390/ijms25021185] [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: 12/24/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Rice is a staple food for 350 million people globally. Its yield thus affects global food security. Drought is a serious environmental factor affecting rice growth. Alleviating the inhibition of drought stress is thus an urgent challenge that should be solved to enhance rice growth and yield. This review details the effects of drought on rice morphology, physiology, biochemistry, and the genes associated with drought stress response, their biological functions, and molecular regulatory pathways. The review further highlights the main future research directions to collectively provide theoretical support and reference for improving drought stress adaptation mechanisms and breeding new drought-resistant rice varieties.
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Affiliation(s)
- Anjing Geng
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Wenli Lian
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Yihan Wang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Minghao Liu
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Yue Zhang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Xu Wang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Guang Chen
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
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4
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Madhu, Sharma A, Kaur A, Singh K, Upadhyay SK. Modulation in gene expression and enzyme activity suggested the roles of monodehydroascorbate reductase in development and stress response in bread wheat. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 338:111902. [PMID: 37879539 DOI: 10.1016/j.plantsci.2023.111902] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/23/2023] [Accepted: 10/17/2023] [Indexed: 10/27/2023]
Abstract
Monodehydroascorbate reductase (MDHAR) is a crucial enzymatic antioxidant of the ascorbate-glutathione pathway involved in reactive oxygen species scavenging. Herein, we identified 15 TaMDHAR genes in bread wheat. Phylogenetic analysis revealed their clustering into three groups, which are also related to the subcellular localization in the peroxisome matrix, peroxisome membrane, and chloroplast. Each TaMDHAR protein consisted of two conserved domains; Pyr_redox and Pyr_redox_2 of the pyridine nucleotide disulfide oxidoreductase family. The occurrence of diverse groups of cis-regulatory elements in the promoter region and their interaction with numerous transcription factors suggest assorted functions of TaMDHARs in growth and development and in light, phytohormones, and stress responses. Expression analysis in various tissues further revealed their importance in vegetative and reproductive development. In addition, the differential gene expression and enhanced enzyme activity during drought, heat, and salt treatments exposed their role in abiotic stress response. Interaction of MDHARs with various antioxidant enzymes and biochemicals related to the ascorbate-glutathione cycle exposed their synchronized functioning. Interaction with auxin indicated the probability of cross-talk between antioxidants and auxin signaling. The miR168a, miR169, miR172 and others interaction with various TaMDHARs further directed their association with developmental processes and stress responses. The current study provides extensive information about the importance of TaMDHARs, moreover, the precise role of each gene needs to be established in future studies.
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Affiliation(s)
- Madhu
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Alok Sharma
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Amandeep Kaur
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Kashmir Singh
- Department of Biotechnology, Panjab University, Chandigarh 160014, India
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5
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Xiao R, Sun Y, Yang S, Yang Y, Wang D, Wang Z, Zhou W. Systematic Identification and Functional Analysis of the Hypericum perforatum L. bZIP Gene Family Indicating That Overexpressed HpbZIP69 Enhances Drought Resistance. Int J Mol Sci 2023; 24:14238. [PMID: 37762543 PMCID: PMC10531856 DOI: 10.3390/ijms241814238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Basic leucine zipper (bZIP) transcription factors play significant roles in plants' growth and development processes, as well as in response to biological and abiotic stresses. Hypericum perforatum is one of the world's top three best-selling herbal medicines, mainly used to treat depression. However, there has been no systematic identification or functional analysis of the bZIP gene family in H. perforatum. In this study, 79 HpbZIP genes were identified. Based on phylogenetic analysis, the HpbZIP gene family was divided into ten groups, designated A-I and S. The physicochemical properties, gene structures, protein conserved motifs, and Gene Ontology enrichments of all HpbZIPs were systematically analyzed. The expression patterns of all genes in different tissues of H. perforatum (i.e., root, stem, leaf, and flower) were analyzed by qRT-PCR, revealing the different expression patterns of HpbZIP under abiotic stresses. The HpbZIP69 protein is localized in the nucleus. According to the results of the yeast one-hybrid (Y1H) assays, HpbZIP69 can bind to the HpASMT2 (N-acetylserotonin O-methyltransferase) gene promoter (G-box cis-element) to activate its activity. Overexpressing HpbZIP69 in Arabidopsis wild-type lines enhanced their tolerance to drought. The MDA and H2O2 contents were significantly decreased, and the activity of superoxide dismutase (SOD) was considerably increased under the drought stress. These results may aid in additional functional studies of HpbZIP transcription factors, and in cultivating drought-resistant medicinal plants.
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Affiliation(s)
| | | | | | | | | | - Zhezhi Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710119, China; (R.X.); (Y.S.); (S.Y.); (Y.Y.); (D.W.)
| | - Wen Zhou
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710119, China; (R.X.); (Y.S.); (S.Y.); (Y.Y.); (D.W.)
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6
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Dwivedi AK, Singh V, Anwar K, Pareek A, Jain M. Integrated transcriptome, proteome and metabolome analyses revealed secondary metabolites and auxiliary carbohydrate metabolism augmenting drought tolerance in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107849. [PMID: 37393858 DOI: 10.1016/j.plaphy.2023.107849] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 06/01/2023] [Accepted: 06/15/2023] [Indexed: 07/04/2023]
Abstract
Drought is one of the major consequences of climate change and a serious threat to rice production. Drought stress activates interactions among genes, proteins and metabolites at the molecular level. A comparative multi-omics analysis of drought-tolerant and drought-sensitive rice cultivars can decipher the molecular mechanisms involved in drought tolerance/response. Here, we characterized the global-level transcriptome, proteome, and metabolome profiles, and performed integrated analyses thereof in a drought-sensitive (IR64) and a drought-tolerant (Nagina 22) rice cultivar under control and drought-stress conditions. The transcriptional dynamics and its integration with proteome analysis revealed the role of transporters in regulation of drought stress. The proteome response illustrated the contribution of translational machinery to drought tolerance in N22. The metabolite profiling revealed that aromatic amino acids and soluble sugars contribute majorly to drought tolerance in rice. The integrated transcriptome, proteome and metabolome analysis performed using statistical and knowledge-based methods revealed the preference for auxiliary carbohydrate metabolism through glycolysis and pentose phosphate pathway contributed to drought tolerance in N22. In addition, L-phenylalanine and the genes/proteins responsible for its biosynthesis were also found to contribute to drought tolerance in N22. In conclusion, our study provided mechanistic insights into the drought response/adaptation mechanism and is expected to facilitate engineering of drought tolerance in rice.
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Affiliation(s)
- Anuj Kumar Dwivedi
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Vikram Singh
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Khalid Anwar
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Ashwani Pareek
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Mukesh Jain
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
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7
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Verma D, Kaushal N, Balhara R, Singh K. Genome-wide analysis of Catalase gene family reveal insights into abiotic stress response mechanism in Brassica juncea and B. rapa. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 330:111620. [PMID: 36738937 DOI: 10.1016/j.plantsci.2023.111620] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/19/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Environmental stresses affect the yield and productivity of Brassica crops. Catalases are important antioxidant enzymes involved in reducing excess hydrogen peroxide produced by environmental stresses. In the present study, nine and seven CAT family members in two oilseed Brassica species (B. juncea and B. rapa) were identified with complete characterization based on gene and protein structure. Phylogenetic classification categorized CAT proteins into three classes and differentiated the monocot and dicot-specific CAT proteins. Further, the gene and protein characterizations revealed a high degree of conservation across the CAT family members. Differences were observed in the CAT-HEME binding affinity in CAT1, CAT2, and CAT3 isozymes, which could suggest their differential enzyme activities in different conditions. Furthermore, protein-protein interaction with other antioxidant proteins suggested their coordinated role in ROS scavenging mechanisms. Notably, the differential gene expression of BjuCATs and BraCATs and CAT enzyme activities suggested their crucial roles in major abiotic stresses faced by Brassica species. Promoter analysis in BjuCATs and BraCATs suggested the presence of abiotic-stress responsive cis-regulatory elements. Gene regulatory network analysis suggested miRNA and TF mediated stress response in BjuCATs and BraCATs. CAT family screening and characterization in Brassica sp. has established a basic ground for further functional validation in abiotic and heavy-metal stresses which can help in developing stress tolerant crops.
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Affiliation(s)
- Deepika Verma
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
| | - Nishant Kaushal
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
| | - Rinku Balhara
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
| | - Kashmir Singh
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India.
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8
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Zhang B, Shi F, Zheng X, Pan H, Wen Y, Song F. Effects of AMF Compound Inoculants on Growth, Ion Homeostasis, and Salt Tolerance-Related Gene Expression in Oryza sativa L. Under Salt Treatments. RICE (NEW YORK, N.Y.) 2023; 16:18. [PMID: 37036613 PMCID: PMC10086084 DOI: 10.1186/s12284-023-00635-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Increased soil salinization is among the main factors that limits safe rice production. Arbuscular mycorrhizal fungi (AMF) have been shown to alleviate the toxic effects of salt stress in plants. However, more studies on AMF combined with other functional microorganisms are needed to further improve salt tolerance in rice. Therefore, the compound inoculum Funneliformis mosseae (Fm) together with two functional microorganisms, Piriformospora indica (Pi) and Agrobacterium rhizogenes (Ar) was evaluated for their effect on the rice growth, photosynthetic gas exchange parameters, ion homeostasis, and the expression of salt tolerance-related genes under 0, 80, 120 and 160 mM salt stress conditions. The results showed that: (1) the rice seedling biomass of the AMF compound inoculant treatment group was significantly higher than that of the non-inoculation treatment group (P < 0.05); (2) under NaCl stress, inoculation with AMF compound inoculants can activate the rice antioxidant enzyme system and improve osmoregulation ability; (3) AMF compound inoculants can increase the concentration of K+ in the plant and inhibit the transfer of Na+ to rice leaves, maintaining a high K+/Na+; and (4) AMF compound inoculants could induce and regulate the overexpression of genes related to salt tolerance, photosynthesis and ion homeostasis in rice, and improve the tolerance of rice under salt stress. Our study showed that AMF compound inoculants could improve the adaptability of rice under NaCl stress and promote plant growth by regulating the photosynthetic gas exchange parameter, reactive oxygen species (ROS) scavenging ability, and ion homeostasis of plants. These results suggest that AMF compound inoculants may play an important role in improving rice productivity in salinized soil.
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Affiliation(s)
- Bo Zhang
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin, 150080 China
- Jiaxiang Industrial Technology Research Institute of Heilongjiang University, Jiaxiang, 272400 Shandong China
| | - Feng Shi
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin, 150080 China
- Jiaxiang Industrial Technology Research Institute of Heilongjiang University, Jiaxiang, 272400 Shandong China
| | - Xu Zheng
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin, 150080 China
- Jiaxiang Industrial Technology Research Institute of Heilongjiang University, Jiaxiang, 272400 Shandong China
| | - Hongyang Pan
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin, 150080 China
- Jiaxiang Industrial Technology Research Institute of Heilongjiang University, Jiaxiang, 272400 Shandong China
| | - Yuqiang Wen
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin, 150080 China
- Jiaxiang Industrial Technology Research Institute of Heilongjiang University, Jiaxiang, 272400 Shandong China
| | - Fuqiang Song
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin, 150080 China
- Jiaxiang Industrial Technology Research Institute of Heilongjiang University, Jiaxiang, 272400 Shandong China
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9
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Xia Z, Wen B, Shao J, Zhang T, Hu M, Lin L, Zheng Y, Shi Z, Dong X, Song J, Li Y, Wu Y, Yuan Y, Wu J, Chen Q, Chen J. The transcription factor PbrbZIP52 positively affects pear pollen tube longevity by promoting callose synthesis. PLANT PHYSIOLOGY 2023; 191:1734-1750. [PMID: 36617219 PMCID: PMC10022607 DOI: 10.1093/plphys/kiad002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
In pear (Pyrus bretschneideri), pollen tube growth is critical for the double fertilization associated with seed setting, which in turn affects fruit yield. The normal deposition of callose mediates the polar growth of pollen tubes. However, the mechanism regulating callose synthesis in pollen tubes remains relatively uncharacterized. In this study, we revealed that the typical pear pollen tube lifecycle has a semi-growth duration (GD50) of 16.16 h under in vitro culture conditions. Moreover, callose plugs were deposited throughout the pollen tube lifecycle. The formation of callose plugs was inhibited by 2-deoxy-D-glucose, which also accelerated the senescence of pear pollen tubes. Additionally, PbrCalS1B.1, which encodes a plasma membrane-localized callose synthase, was expressed specifically in pollen tubes and restored the fertility of the Arabidopsis (Arabidopsis thaliana) cals5 mutant, in which callose synthesis is inhibited. However, this restoration of fertility was impaired by the transient silencing of PbrCalS1B.1, which restricts callose plug formation and shortens the pear pollen tube lifecycle. More specifically, PbrbZIP52 regulated PbrCalS1B.1 transcription by binding to promoter A-box elements to maintain the periodic formation of callose plugs and normal pollen tube growth, ultimately leading to double fertilization. This study confirmed that PbrbZIP52 positively affects pear pollen tube longevity by promoting callose synthesis. This finding may be useful for breeding high-yielding pear cultivars and stabilizing fruit setting in commercial orchards.
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Affiliation(s)
- Zhongheng Xia
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Binxu Wen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jing Shao
- Institute of Pomology, Jilin Academy of Agricultural Sciences, Gongzhuling 136100, China
| | - Tianci Zhang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Mengmeng Hu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lin Lin
- Anxi College of Tea Science, Fujian Agriculture and Forestry University, Anxi 362406, China
| | - Yiping Zheng
- Fujian Academy of Agricultural Sciences Biotechnology Institute, Fuzhou 350003, China
| | - Zhixin Shi
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xinlin Dong
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Juanjuan Song
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yuanshan Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yongjie Wu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yafang Yuan
- Department of Horticulture and Landscape Architecture, Fujian Vocational College of Agriculture, Fuzhou 350119, China
| | - Juyou Wu
- Center of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Qingxi Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jianqing Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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10
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Marè C, Zampieri E, Cavallaro V, Frouin J, Grenier C, Courtois B, Brottier L, Tacconi G, Finocchiaro F, Serrat X, Nogués S, Bundó M, San Segundo B, Negrini N, Pesenti M, Sacchi GA, Gavina G, Bovina R, Monaco S, Tondelli A, Cattivelli L, Valè G. Marker-Assisted Introgression of the Salinity Tolerance Locus Saltol in Temperate Japonica Rice. RICE (NEW YORK, N.Y.) 2023; 16:2. [PMID: 36633713 PMCID: PMC9837369 DOI: 10.1186/s12284-023-00619-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Rice is one of the most salt sensitive crops at seedling, early vegetative and reproductive stages. Varieties with salinity tolerance at seedling stage promote an efficient growth at early stages in salt affected soils, leading to healthy vegetative growth that protects crop yield. Saltol major QTL confers capacity to young rice plants growing under salt condition by maintaining a low Na+/K+ molar ratio in the shoots. RESULTS Marker-assisted backcross (MABC) procedure was adopted to transfer Saltol locus conferring salt tolerance at seedling stage from donor indica IR64-Saltol to two temperate japonica varieties, Vialone Nano and Onice. Forward and background selections were accomplished using polymorphic KASP markers and a final evaluation of genetic background recovery of the selected lines was conducted using 15,580 SNP markers obtained from Genotyping by Sequencing. Three MABC generations followed by two selfing, allowed the identification of introgression lines achieving a recovery of the recurrent parent (RP) genome up to 100% (based on KASP markers) or 98.97% (based on GBS). Lines with highest RP genome recovery (RPGR) were evaluated for agronomical-phenological traits in field under non-salinized conditions. VN1, VN4, O1 lines were selected considering the agronomic evaluations and the RPGR% results as the most interesting for commercial exploitation. A physiological characterization was conducted by evaluating salt tolerance under hydroponic conditions. The selected lines showed lower standard evaluation system (SES) scores: 62% of VN4, and 57% of O1 plants reaching SES 3 or SES 5 respectively, while only 40% of Vialone Nano and 25% of Onice plants recorded scores from 3 to 5, respectively. VN1, VN4 and O1 showed a reduced electrolyte leakage values, and limited negative effects on relative water content and shoot/root fresh weight ratio. CONCLUSION The Saltol locus was successfully transferred to two elite varieties by MABC in a time frame of three years. The application of background selection until BC3F3 allowed the selection of lines with a RPGR up to 98.97%. Physiological evaluations for the selected lines indicate an improved salinity tolerance at seedling stage. The results supported the effectiveness of the Saltol locus in temperate japonica and of the MABC procedure for recovering of the RP favorable traits.
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Affiliation(s)
- Caterina Marè
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda, Piacenza, Italy.
| | - Elisa Zampieri
- Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, s.s. 11 to Torino, km 2.5, 13100, Vercelli, Italy
- Institute for Sustainable Plant Protection, National Research Council, Strada Delle Cacce 73, 10135, Turin, Italy
| | - Viviana Cavallaro
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy - DiSAA, University of Milan, Milan, Italy
| | - Julien Frouin
- CIRAD, UMR AGAP, 34398, Montpellier, France
- AGAP, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Cécile Grenier
- CIRAD, UMR AGAP, 34398, Montpellier, France
- AGAP, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Brigitte Courtois
- CIRAD, UMR AGAP, 34398, Montpellier, France
- AGAP, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Laurent Brottier
- CIRAD, UMR AGAP, 34398, Montpellier, France
- AGAP, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Gianni Tacconi
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda, Piacenza, Italy
| | - Franca Finocchiaro
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda, Piacenza, Italy
| | - Xavier Serrat
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Secció de Fisiologia Vegetal, Universitat de Barcelona, Barcelona, Spain
| | - Salvador Nogués
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Secció de Fisiologia Vegetal, Universitat de Barcelona, Barcelona, Spain
| | - Mireia Bundó
- Centre for Research in Agricultural Genomics (CRAG)-CSIC-IRTA-UAB-UB, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - Blanca San Segundo
- Centre for Research in Agricultural Genomics (CRAG)-CSIC-IRTA-UAB-UB, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
- Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain
| | - Noemi Negrini
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy - DiSAA, University of Milan, Milan, Italy
| | - Michele Pesenti
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy - DiSAA, University of Milan, Milan, Italy
| | - Gian Attilio Sacchi
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy - DiSAA, University of Milan, Milan, Italy
| | - Giacomo Gavina
- SIS Società Italiana Sementi, Via Mirandola, 5, 40068, San Lazzaro di Savena, Bologna, Italy
| | - Riccardo Bovina
- SIS Società Italiana Sementi, Via Mirandola, 5, 40068, San Lazzaro di Savena, Bologna, Italy
| | - Stefano Monaco
- Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, s.s. 11 to Torino, km 2.5, 13100, Vercelli, Italy
- Council for Agricultural Research and Economics, Research Centre for Engineering and Agro-Food Processing, Strada Delle Cacce 73, 10135, Turin, Italy
| | - Alessandro Tondelli
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda, Piacenza, Italy
| | - Luigi Cattivelli
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda, Piacenza, Italy
| | - Giampiero Valè
- Dipartimento per lo Sviluppo Sostenibile e la Transizione Ecologica, University of Piemonte Orientale, Piazza S. Eusebio 5, 13100, Vercelli, Italy.
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Sano N, Lounifi I, Cueff G, Collet B, Clément G, Balzergue S, Huguet S, Valot B, Galland M, Rajjou L. Multi-Omics Approaches Unravel Specific Features of Embryo and Endosperm in Rice Seed Germination. FRONTIERS IN PLANT SCIENCE 2022; 13:867263. [PMID: 35755645 PMCID: PMC9225960 DOI: 10.3389/fpls.2022.867263] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Seed germination and subsequent seedling growth affect the final yield and quality of the crop. Seed germination is defined as a series of processes that begins with water uptake by a quiescent dry seed and ends with the elongation of embryonic axis. Rice is an important cereal crop species, and during seed germination, two tissues function in a different manner; the embryo grows into a seedling as the next generation and the endosperm is responsible for nutritional supply. Toward understanding the integrated roles of each tissue at the transcriptional, translational, and metabolic production levels during germination, an exhaustive "multi-omics" analysis was performed by combining transcriptomics, label-free shotgun proteomics, and metabolomics on rice germinating embryo and endosperm, independently. Time-course analyses of the transcriptome and metabolome in germinating seeds revealed a major turning point in the early phase of germination in both embryo and endosperm, suggesting that dramatic changes begin immediately after water imbibition in the rice germination program at least at the mRNA and metabolite levels. In endosperm, protein profiles mostly showed abundant decreases corresponding to 90% of the differentially accumulated proteins. An ontological classification revealed the shift from the maturation to the germination process where over-represented classes belonged to embryonic development and cellular amino acid biosynthetic processes. In the embryo, 19% of the detected proteins are differentially accumulated during germination. Stress response, carbohydrate, fatty acid metabolism, and transport are the main functional classes representing embryo proteome change. Moreover, proteins specific to the germinated state were detected by both transcriptomic and proteomic approaches and a major change in the network operating during rice germination was uncovered. In particular, concomitant changes of hormonal metabolism-related proteins (GID1L2 and CNX1) implicated in GAs and ABA metabolism, signaling proteins, and protein turnover events emphasized the importance of such biological networks in rice seeds. Using metabolomics, we highlighted the importance of an energetic supply in rice seeds during germination. In both embryo and endosperm, starch degradation, glycolysis, and subsequent pathways related to these cascades, such as the aspartate-family pathway, are activated during germination. A relevant number of accumulated proteins and metabolites, especially in embryos, testifies the pivotal role of energetic supply in the preparation of plant growth. This article summarizes the key genetic pathways in embryo and endosperm during rice seed germination at the transcriptional, translational, and metabolite levels and thereby, emphasizes the value of combined multi-omics approaches to uncover the specific feature of tissues during germination.
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Affiliation(s)
- Naoto Sano
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Imen Lounifi
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
- MBCC Group, Master Builders Construction Chemical, Singapore, Singapore
| | - Gwendal Cueff
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Boris Collet
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Gilles Clément
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Sandrine Balzergue
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, France
- IRHS-UMR1345, Université d'Angers, INRAE, Institut Agro, SFR 4207 QuaSaV, Beaucouzé, France
| | - Stéphanie Huguet
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, France
| | - Benoît Valot
- Université Paris-Saclay, INRAE, CNRS, AgroParisTech, GQE - Le Moulon, PAPPSO, Plateforme d'Analyse de Proteomique Paris-Sud-Ouest, Gif-sur-Yvette, France
- Chrono-Environnement Research Team UMR/CNRS-6249, Bourgogne-Franche-Comté University, Besançon, France
| | - Marc Galland
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Loïc Rajjou
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
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12
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Srivastava R, Kobayashi Y, Koyama H, Sahoo L. Overexpression of cowpea NAC transcription factors promoted growth and stress tolerance by boosting photosynthetic activity in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 319:111251. [PMID: 35487661 DOI: 10.1016/j.plantsci.2022.111251] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 05/07/2023]
Abstract
ATAF-like NAC transcription factors are bonafide regulators of stress-signaling. However, their overexpression often exerts growth-retardation by activating ABA-hypersensitivity, chloroplast-degradation, or carbon-starvation. To improve tolerance to multiple stress complying with growth sustainability, we examined two ATAF orthologs, VuNAC1 and VuNAC2, isolated from a drought-hardy cowpea genotype, for a harmonized regulation of stress and growth signaling. The genes were induced by dehydration, NaCl, polyethylene glycol, heat, cold, ABA, and light. Analysis of the promoter-elements and regulatory network corroborated the integration of circadian, hormonal, stress, developmental, and nutrition signals, being VuNAC1/2 the central transcriptional-switch interfacing growth and stress responses. The constitutive gene overexpression in Arabidopsis resulted in an improved embryonic, rosette, and inflorescence growth, under optimum as well as limiting nutrition, in association with increased photosynthetic activity and stomatal-density. The transgenic seedlings manifested tolerance to dehydration, salinity, aluminum, cadmium, and H2O2 toxicity, in addition to ABA-mediated seed dormancy and hypersensitivity. The soil-grown plants survived severe drought and hypersalinity by maintaining the water-status and membrane integrity through the accumulation of stress protectants, such as proline, glutathione, and ascorbate. Unlike their orthologs from other species, VuNAC1/2 conferred tolerance to multiple abiotic stresses in line with improved growth attributes via regulation of photosynthetic controls and nutritional balance, suggesting growth being a crucial component of stress-tolerance and recovery. Such unique stress-responsive transcription factors, which also confer photosynthetic gain, could be sustainable biotechnological tools for developing stress-tolerant crops and translating the improved growth into yield without unintended trade-offs.
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Affiliation(s)
- Richa Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Yuriko Kobayashi
- Faculty of Applied Biological Sciences, Gifu University, 1-1, Yanagido, Gifu 501-1193, Japan
| | - Hiroyuki Koyama
- Faculty of Applied Biological Sciences, Gifu University, 1-1, Yanagido, Gifu 501-1193, Japan
| | - Lingaraj Sahoo
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
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13
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Zhou L, Yarra R. Genome-wide identification and expression analysis of bZIP transcription factors in oil palm (Elaeis guineensis Jacq.) under abiotic stress. PROTOPLASMA 2022; 259:469-483. [PMID: 34212248 DOI: 10.1007/s00709-021-01666-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 05/07/2021] [Indexed: 06/13/2023]
Abstract
The bZIP transcription factors are well-known transcription regulators and play a key role in regulating various developmental, biological processes, and stress responses in plants. However, information on bZIP transcription factors is not yet available in oil palm, an important oil yielding crop. The present study identified the 97 bZIP transcription factor family members in oil palm genome via a genome-wide approach. Phylogenetic analysis clustered all EgbZIPs into 12 clusters with Arabidopsis and rice bZIPs. EgbZIP gene structure analysis showed a distinct variation in the intron-exon organization among all EgbZIPs. Conserved motif analysis demonstrated the occurrence of ten additional conserved motifs besides having a common bZIP domain. All the identified 97 EgbZIPs were unevenly distributed on 16 chromosomes and exhibited tandem duplication in oil palm genome. Our results aslo demonstrated that tissue-specific expression patterns of EgbZIPs based on the available transcriptome data of six different tissue of oil palm. Stress-responsive expression analysis showed that 11EgbZIP transcription factors were highly expressed under cold, salinity, drought stress conditions. Taken together, our findings will provide insightful information on bZIP transcription factors as one of the stress-responsive regulators in oil palm.
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Affiliation(s)
- Lixia Zhou
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences/Hainan Key Laboratory of Tropical Oil Crops Biology, Wenchang, Hainan, 571339, People's Republic of China.
| | - Rajesh Yarra
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences/Hainan Key Laboratory of Tropical Oil Crops Biology, Wenchang, Hainan, 571339, People's Republic of China
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14
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Tiwari S, Nutan KK, Deshmukh R, Sarsu F, Gupta KJ, Singh AK, Singla-Pareek SL, Pareek A. Seedling-stage salinity tolerance in rice: Decoding the role of transcription factors. PHYSIOLOGIA PLANTARUM 2022; 174:e13685. [PMID: 35419814 DOI: 10.1111/ppl.13685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/10/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Rice is an important staple food crop that feeds over half of the human population, particularly in developing countries. Increasing salinity is a major challenge for continuing rice production. Though rice is affected by salinity at all the developmental stages, it is most sensitive at the early seedling stage. The yield thus depends on how many seedlings can withstand saline water at the stage of transplantation, especially in coastal farms. The rapid development of "omics" approaches has assisted researchers in identifying biological molecules that are responsive to salt stress. Several salinity-responsive quantitative trait loci (QTL) contributing to salinity tolerance have been identified and validated, making it essential to narrow down the search for the key genes within QTLs. Owing to the impressive progress of molecular tools, it is now clear that the response of plants toward salinity is highly complex, involving multiple genes, with a specific role assigned to the repertoire of transcription factors (TF). Targeting the TFs for improving salinity tolerance can have an inbuilt advantage of influencing multiple downstream genes, which in turn can contribute toward tolerance to multiple stresses. This is the first comparative study for TF-driven salinity tolerance in contrasting rice cultivars at the seedling stage that shows how tolerant genotypes behave differently than sensitive ones in terms of stress tolerance. Understanding the complexity of salt-responsive TF networks at the seedling stage will be helpful to alleviate crop resilience and prevent crop damage at an early growth stage in rice.
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Affiliation(s)
- Shalini Tiwari
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, Delhi, India
| | - Kamlesh Kant Nutan
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, Delhi, India
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute, Sahibzada Ajit Singh Nagar, Punjab, India
| | - Fatma Sarsu
- General Directorate of Agricultural Research and Policies, Ministry of Agriculture and Forestry, Ankara, Turkey
| | | | - Anil K Singh
- ICAR-National Institute for Plant Biotechnology, LBS Centre, New Delhi, Delhi, India
| | - Sneh L Singla-Pareek
- Plant Stress Biology, International Centre for Genetic Engineering and Biotechnology, New Delhi, Delhi, India
| | - Ashwani Pareek
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, Delhi, India
- National Agri-Food Biotechnology Institute, Sahibzada Ajit Singh Nagar, Punjab, India
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15
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Saini N, Nikalje GC, Zargar SM, Suprasanna P. Molecular insights into sensing, regulation and improving of heat tolerance in plants. PLANT CELL REPORTS 2022; 41:799-813. [PMID: 34676458 DOI: 10.1007/s00299-021-02793-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
Climate-change-mediated increase in temperature extremes has become a threat to plant productivity. Heat stress-induced changes in growth pattern, sensitivity to pests, plant phonologies, flowering, shrinkage of maturity period, grain filling, and increased senescence result in significant yield losses. Heat stress triggers multitude of cellular, physiological and molecular responses in plants beginning from the early sensing followed by signal transduction, osmolyte synthesis, antioxidant defense, and heat stress-associated gene expression. Several genes and metabolites involved in heat perception and in the adaptation response have been isolated and characterized in plants. Heat stress responses are also regulated by the heat stress transcription factors (HSFs), miRNAs and transcriptional factors which together form another layer of regulatory circuit. With the availability of functionally validated candidate genes, transgenic approaches have been applied for developing heat-tolerant transgenic maize, tobacco and sweet potato. In this review, we present an account of molecular mechanisms of heat tolerance and discuss the current developments in genetic manipulation for heat tolerant crops for future sustainable agriculture.
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Affiliation(s)
- Nupur Saini
- Department of Plant Molecular Biology and Biotechnology, Indira Gandhi Krishi Vidyalaya, Raipur, 492012, India
| | - Ganesh Chandrakant Nikalje
- PG Department of Botany, Seva Sadan's R. K. Talreja College of Arts, Science and Commerce, Ulhasnagar, 421003, India.
| | - Sajad Majeed Zargar
- Proteomics Laboratory, Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Shalimar, Srinagar, 190019, India
| | - Penna Suprasanna
- Ex-Scientist, Bhabha Atomic Research Centre, Homi Bhabha National Institute, Mumbai, 400085, India.
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16
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CabZIP23 Integrates in CabZIP63-CaWRKY40 Cascade and Turns CabZIP63 on Mounting Pepper Immunity against Ralstonia solanacearum via Physical Interaction. Int J Mol Sci 2022; 23:ijms23052656. [PMID: 35269798 PMCID: PMC8910381 DOI: 10.3390/ijms23052656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/13/2022] [Accepted: 02/18/2022] [Indexed: 01/25/2023] Open
Abstract
CabZIP63 and CaWRKY40 were previously found to be shared in the pepper defense response to high temperature stress (HTS) and to Ralstonia solanacearum inoculation (RSI), forming a transcriptional cascade. However, how they activate the two distinct defense responses is not fully understood. Herein, using a revised genetic approach, we functionally characterized CabZIP23 in the CabZIP63-CaWRKY40 cascade and its context specific pepper immunity activation against RSI by interaction with CabZIP63. CabZIP23 was originally found by immunoprecipitation-mass spectrometry to be an interacting protein of CabZIP63-GFP; it was upregulated by RSI and acted positively in pepper immunity against RSI by virus induced gene silencing in pepper plants, and transient overexpression in Nicotiana benthamiana plants. By chromatin immunoprecipitation (ChIP)-qPCR and electrophoresis mobility shift assay (EMSA), CabZIP23 was found to be directly regulated by CaWRKY40, and CabZIP63 was directly regulated by CabZIP23, forming a positive feedback loop. CabZIP23-CabZIP63 interaction was confirmed by co-immunoprecipitation (CoIP) and bimolecular fluorescent complimentary (BiFC) assays, which promoted CabZIP63 binding immunity related target genes, including CaPR1, CaNPR1 and CaWRKY40, thereby enhancing pepper immunity against RSI, but not affecting the expression of thermotolerance related CaHSP24. All these data appear to show that CabZIP23 integrates in the CabZIP63-CaWRKY40 cascade and the context specifically turns it on mounting pepper immunity against RSI.
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Yu M, Cao C, Yin X, Liu X, Yang D, Gong C, Wang H, Wu Y. The rice phosphoinositide-specific phospholipase C3 is involved in responses to osmotic stresses via modulating ROS homeostasis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 313:111087. [PMID: 34763872 DOI: 10.1016/j.plantsci.2021.111087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/07/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
Four members of phosphoinositide-specific phospholipase C (PI-PLC) are predicted in rice genome. Although the involvement of OsPLC1 and OsPLC4 in the responses of rice to salt and drought stresses has been documented, the role of OsPLC3 in which, yet, is elusive. Here, we report that OsPLC3 was ubiquitously expressed in various tissues during the development of rice. The expression of YFP-tagged OsPLC3 was observed at the plasma membrane (PM), cytoplasm and nucleus of rice protoplasts, onion epidermal cells and tobacco leaves. The catalytic activity of OsPLC3 was measured using the thin-layer chromatography (TLC) method. The inhibition of OsPLC3 expression was detected in the treatments of NaCl and mannitol. Overexpression (OE) of OsPLC3 produced plants showing more sensitive to osmotic stresses when they were compared to the wild-type (HJ) and osplc3 mutants, the phenomena such as decreased plant fresh weight and increased water loss rate (WLR) were observed. Under the treatment of NaCl or mannitol, expressions of a subset osmotic stress-related genes were altered, in both OE and osplc3 mutant lines. In addition, the expressions and the enzyme activities of reactive oxygen species (ROS) scavengers were significantly decreased in OE lines, leading to over-accumulation of ROS together with less osmotic adjustment substances including proline, soluble sugars and soluble proteins in OE plants which caused the growth inhibition. Thus, our results suggested that, via modulating ROS homeostasis, OsPLC3 is involved in responses to the osmotic stress in rice.
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Affiliation(s)
- Min Yu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Chunyan Cao
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Xiaoming Yin
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Xiong Liu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Di Yang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Chunyan Gong
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Hengtao Wang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Yan Wu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
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18
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Jeyasri R, Muthuramalingam P, Satish L, Pandian SK, Chen JT, Ahmar S, Wang X, Mora-Poblete F, Ramesh M. An Overview of Abiotic Stress in Cereal Crops: Negative Impacts, Regulation, Biotechnology and Integrated Omics. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10071472. [PMID: 34371676 PMCID: PMC8309266 DOI: 10.3390/plants10071472] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 05/06/2023]
Abstract
Abiotic stresses (AbS), such as drought, salinity, and thermal stresses, could highly affect the growth and development of plants. For decades, researchers have attempted to unravel the mechanisms of AbS for enhancing the corresponding tolerance of plants, especially for crop production in agriculture. In the present communication, we summarized the significant factors (atmosphere, soil and water) of AbS, their regulations, and integrated omics in the most important cereal crops in the world, especially rice, wheat, sorghum, and maize. It has been suggested that using systems biology and advanced sequencing approaches in genomics could help solve the AbS response in cereals. An emphasis was given to holistic approaches such as, bioinformatics and functional omics, gene mining and agronomic traits, genome-wide association studies (GWAS), and transcription factors (TFs) family with respect to AbS. In addition, the development of omics studies has improved to address the identification of AbS responsive genes and it enables the interaction between signaling pathways, molecular insights, novel traits and their significance in cereal crops. This review compares AbS mechanisms to omics and bioinformatics resources to provide a comprehensive view of the mechanisms. Moreover, further studies are needed to obtain the information from the integrated omics databases to understand the AbS mechanisms for the development of large spectrum AbS-tolerant crop production.
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Affiliation(s)
- Rajendran Jeyasri
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630003, India; (R.J.); (P.M.); (L.S.); (S.K.P.)
| | - Pandiyan Muthuramalingam
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630003, India; (R.J.); (P.M.); (L.S.); (S.K.P.)
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, India
| | - Lakkakula Satish
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630003, India; (R.J.); (P.M.); (L.S.); (S.K.P.)
- Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Shunmugiah Karutha Pandian
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630003, India; (R.J.); (P.M.); (L.S.); (S.K.P.)
| | - Jen-Tsung Chen
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung 81148, Taiwan;
| | - Sunny Ahmar
- Institute of Biological Sciences, University of Talca, 2 Norte 685, Talca 3460000, Chile;
| | - Xiukang Wang
- College of Life Sciences, Yan’an University, Yan’an 716000, China;
| | - Freddy Mora-Poblete
- Institute of Biological Sciences, University of Talca, 2 Norte 685, Talca 3460000, Chile;
- Correspondence: (F.M.-P.); (M.R.)
| | - Manikandan Ramesh
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630003, India; (R.J.); (P.M.); (L.S.); (S.K.P.)
- Correspondence: (F.M.-P.); (M.R.)
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19
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Manna M, Thakur T, Chirom O, Mandlik R, Deshmukh R, Salvi P. Transcription factors as key molecular target to strengthen the drought stress tolerance in plants. PHYSIOLOGIA PLANTARUM 2021; 172:847-868. [PMID: 33180329 DOI: 10.1111/ppl.13268] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/23/2020] [Accepted: 11/07/2020] [Indexed: 05/03/2023]
Abstract
Amid apprehension of global climate change, crop plants are inevitably confronted with a myriad of abiotic stress factors during their growth that inflicts a serious threat to their development and overall productivity. These abiotic stresses comprise extreme temperature, pH, high saline soil, and drought stress. Among different abiotic stresses, drought is considered the most calamitous stressor with its serious impact on the crops' yield stability. The development of climate-resilient crops that withstands reduced water availability is a major focus of the scientific fraternity to ensure the food security of the sharply increasing population. Numerous studies aim to recognize the key regulators of molecular and biochemical processes associated with drought stress tolerance response. A few potential candidates are now considered as promising targets for crop improvement. Transcription factors act as a key regulatory switch controlling the gene expression of diverse biological processes and, eventually, the metabolic processes. Understanding the role and regulation of the transcription factors will facilitate the crop improvement strategies intending to develop and deliver agronomically-superior crops. Therefore, in this review, we have emphasized the molecular avenues of the transcription factors that can be exploited to engineer drought tolerance potential in crop plants. We have discussed the molecular role of several transcription factors, such as basic leucine zipper (bZIP), dehydration responsive element binding (DREB), DNA binding with one finger (DOF), heat shock factor (HSF), MYB, NAC, TEOSINTE BRANCHED1/CYCLOIDEA/PCF (TCP), and WRKY. We have also highlighted candidate transcription factors that can be used for the development of drought-tolerant crops.
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Affiliation(s)
- Mrinalini Manna
- National Institute of Plant Genome Research, New Delhi, India
| | - Tanika Thakur
- Agriculture Biotechnology Department, National Agri-Food Biotechnology Institute, Mohali, Punjab, India
| | - Oceania Chirom
- National Institute of Plant Genome Research, New Delhi, India
| | - Rushil Mandlik
- Agriculture Biotechnology Department, National Agri-Food Biotechnology Institute, Mohali, Punjab, India
| | - Rupesh Deshmukh
- Agriculture Biotechnology Department, National Agri-Food Biotechnology Institute, Mohali, Punjab, India
| | - Prafull Salvi
- Agriculture Biotechnology Department, National Agri-Food Biotechnology Institute, Mohali, Punjab, India
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20
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Ponce KS, Guo L, Leng Y, Meng L, Ye G. Advances in Sensing, Response and Regulation Mechanism of Salt Tolerance in Rice. Int J Mol Sci 2021; 22:ijms22052254. [PMID: 33668247 PMCID: PMC7956267 DOI: 10.3390/ijms22052254] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/19/2021] [Accepted: 02/20/2021] [Indexed: 01/06/2023] Open
Abstract
Soil salinity is a serious menace in rice production threatening global food security. Rice responses to salt stress involve a series of biological processes, including antioxidation, osmoregulation or osmoprotection, and ion homeostasis, which are regulated by different genes. Understanding these adaptive mechanisms and the key genes involved are crucial in developing highly salt-tolerant cultivars. In this review, we discuss the molecular mechanisms of salt tolerance in rice—from sensing to transcriptional regulation of key genes—based on the current knowledge. Furthermore, we highlight the functionally validated salt-responsive genes in rice.
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Affiliation(s)
- Kimberly S. Ponce
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006, China;
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College of Yangzhou University, Yangzhou 225009, China
| | - Longbiao Guo
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006, China;
- Correspondence: (Y.L.); (L.G.); Tel.: +86-514-8797-4757 (Y.L.); +86-571-6337-0136 (L.G.)
| | - Yujia Leng
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Correspondence: (Y.L.); (L.G.); Tel.: +86-514-8797-4757 (Y.L.); +86-571-6337-0136 (L.G.)
| | - Lijun Meng
- CAAS-IRRI Joint Laboratory for Genomics-Assisted Germplasm Enhancement, Agricultural Genomics Institute in Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China; (L.M.); (G.Y.)
| | - Guoyou Ye
- CAAS-IRRI Joint Laboratory for Genomics-Assisted Germplasm Enhancement, Agricultural Genomics Institute in Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China; (L.M.); (G.Y.)
- Strategic Innovation Platform, International Rice Research Institute, DAPO BOX 7777, Metro Manila 1301, Philippines
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21
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Abstract
Plants are an important part of nature because as photoautotrophs, they provide a nutrient source for many other living organisms. Due to their sessile nature, to overcome both biotic and abiotic stresses, plants have developed intricate mechanisms for perception of and reaction to these stresses, both on an external level (perception) and on an internal level (reaction). Specific proteins found within cells play crucial roles in stress mitigation by enhancing cellular processes that facilitate the plants survival during the unfavorable conditions. Well before plants are able to synthesize nascent proteins in response to stress, proteins which already exist in the cell can be subjected to an array of posttranslation modifications (PTMs) that permit a rapid response. These activated proteins can, in turn, aid in further stress responses. Different PTMs have different functions in growth and development of plants. Protein phosphorylation, a reversible form of modification has been well elucidated, and its role in signaling cascades is well documented. In this mini-review, we discuss the integration of protein phosphorylation with other components of abiotic stress-responsive pathways including phytohormones and ion homeostasis. Overall, this review demonstrates the high interconnectivity of the stress response system in plants and how readily plants are able to toggle between various signaling pathways in order to survive harsh conditions. Most notably, fluctuations of the cytosolic calcium levels seem to be a linking component of the various signaling pathways.
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Affiliation(s)
- Rebecca Njeri Damaris
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan, China
| | - Pingfang Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan, China.
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22
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Neysanian M, Iranbakhsh A, Ahmadvand R, Oraghi Ardebili Z, Ebadi M. Comparative efficacy of selenate and selenium nanoparticles for improving growth, productivity, fruit quality, and postharvest longevity through modifying nutrition, metabolism, and gene expression in tomato; potential benefits and risk assessment. PLoS One 2020; 15:e0244207. [PMID: 33338077 PMCID: PMC7748219 DOI: 10.1371/journal.pone.0244207] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/04/2020] [Indexed: 11/25/2022] Open
Abstract
This study attempted to address molecular, developmental, and physiological responses of tomato plants to foliar applications of selenium nanoparticles (nSe) at 0, 3, and 10 mgl-1 or corresponding doses of sodium selenate (BSe). The BSe/nSe treatment at 3 mgl-1 increased shoot and root biomass, while at 10 mgl-1 moderately reduced biomass accumulation. Foliar application of BSe/nSe, especially the latter, at the lower dose enhanced fruit production, and postharvest longevity, while at the higher dose induced moderate toxicity and restricted fruit production. In leaves, the BSe/nSe treatments transcriptionally upregulated miR172 (mean = 3.5-folds). The Se treatments stimulated the expression of the bZIP transcription factor (mean = 9.7-folds). Carotene isomerase (CRTISO) gene was transcriptionally induced in both leaves and fruits of the nSe-treated seedlings by an average of 5.5 folds. Both BSe or nSe at the higher concentration increased proline concentrations, H2O2 accumulation, and lipid peroxidation levels, suggesting oxidative stress and impaired membrane integrity. Both BSe or nSe treatments also led to the induction of enzymatic antioxidants (catalase and peroxidase), an increase in concentrations of ascorbate, non-protein thiols, and soluble phenols, as well as a rise in the activity of phenylalanine ammonia-lyase enzyme. Supplementation at 3 mgl-1 improved the concentration of mineral nutrients (Mg, Fe, and Zn) in fruits. The bioaccumulated Se contents in the nSe-treated plants were much higher than the corresponding concentration of selenate, implying a higher efficacy of the nanoform towards biofortification programs. Se at 10 mgl-1, especially in selenate form, reduced both size and density of pollen grains, indicating its potential toxicity at the higher doses. This study provides novel molecular and physiological insights into the nSe efficacy for improving plant productivity, fruit quality, and fruit post-harvest longevity.
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Affiliation(s)
- Maryam Neysanian
- Department of Biology, Science and Research Branch, Islamic Azad
University, Tehran, Iran
| | - Alireza Iranbakhsh
- Department of Biology, Science and Research Branch, Islamic Azad
University, Tehran, Iran
| | - Rahim Ahmadvand
- Department of Seed and Plant Research Improvement Institute, Karaj,
Iran
| | | | - Mostafa Ebadi
- Department of Biology, Damghan Branch, Islamic Azad University, Damghan,
Iran
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23
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Yu Y, Qian Y, Jiang M, Xu J, Yang J, Zhang T, Gou L, Pi E. Regulation Mechanisms of Plant Basic Leucine Zippers to Various Abiotic Stresses. FRONTIERS IN PLANT SCIENCE 2020; 11:1258. [PMID: 32973828 PMCID: PMC7468500 DOI: 10.3389/fpls.2020.01258] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/30/2020] [Indexed: 05/05/2023]
Affiliation(s)
| | | | | | | | | | | | | | - Erxu Pi
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
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24
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Zheng W, Xie T, Yu X, Chen N, Zhang Z. Characterization of bZIP transcription factors from Dimocarpus longan Lour. and analysis of their tissue-specific expression patterns and response to heat stress. J Genet 2020. [DOI: 10.1007/s12041-020-01229-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Sharma H, Bhandawat A, Kumar P, Rahim MS, Parveen A, Kumar P, Madhawan A, Rishi V, Roy J. Development and characterization of bZIP transcription factor based SSRs in wheat. Gene 2020; 756:144912. [PMID: 32574760 DOI: 10.1016/j.gene.2020.144912] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/31/2020] [Accepted: 06/17/2020] [Indexed: 02/08/2023]
Abstract
Assessment of existing diversity is the key for germplasm conservation and crop improvement. Wheat (Triticum aestivum L.) is among the most important cereal crop and consumed by two billion world's populations. DNA-based markers are predominantly used for diversity characterization because they are easy to develop and not influenced by environment. Among them microsatellites (simple sequence repeats, SSRs) are most suitable due to their genome-wide distribution, hypervariability and reproducibility for their applications in diversity, genetic improvement, and molecular breeding. bZIP transcription factors play major roles in plants in light and stress signalling, seed development, and defence. A total of 846 SSRs were identified from 370 wheat cDNA sequences and a sub-set of 35 polymorphic TabZIPMS (TriticumaestivumbZIP MicroSatellites) was used for diversity and genetic structure analysis of 92 Indian wheat varieties and related species. 114 SSR variants ranging from 2 to 5 per SSR locus were detected for 35 SSRs in the varieties. Average polymorphic information content (PIC) and observed heterozygosity was found to be 0.135 and 0.838, respectively. Thirty-four SSRs showed cross-transferability into different related species. Combined Bayesian model and Jaccard's similarity based genetic clustering analysis revealed two clusters of 80 bread wheat varieties and one separate cluster of related species. In this study, a total 35 novel bZIP-derived SSRs were identified in a set 370 bZIP genes and shown high polymorphism and cross-species transferability in wheat. The findings provide resources for future utilization in genetic resource conservation, trait introgression, breeding and varietal development.
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Affiliation(s)
- Himanshu Sharma
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Abhishek Bhandawat
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Pankaj Kumar
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Mohammed Saba Rahim
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Afsana Parveen
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Prashant Kumar
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Akansha Madhawan
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Vikas Rishi
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Joy Roy
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India.
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26
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Bonnot T, Martre P, Hatte V, Dardevet M, Leroy P, Bénard C, Falagán N, Martin-Magniette ML, Deborde C, Moing A, Gibon Y, Pailloux M, Bancel E, Ravel C. Omics Data Reveal Putative Regulators of Einkorn Grain Protein Composition under Sulfur Deficiency. PLANT PHYSIOLOGY 2020; 183:501-516. [PMID: 32295821 PMCID: PMC7271774 DOI: 10.1104/pp.19.00842] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 03/27/2020] [Indexed: 05/06/2023]
Abstract
Understanding the molecular mechanisms controlling the accumulation of grain storage proteins in response to nitrogen (N) and sulfur (S) nutrition is essential to improve cereal grain nutritional and functional properties. Here, we studied the grain transcriptome and metabolome responses to postanthesis N and S supply for the diploid wheat einkorn (Triticum monococcum). During grain filling, 848 transcripts and 24 metabolites were differentially accumulated in response to N and S availability. The accumulation of total free amino acids per grain and the expression levels of 241 genes showed significant modifications during most of the grain filling period and were upregulated in response to S deficiency. Among them, 24 transcripts strongly responded to S deficiency and were identified in coexpression network analyses as potential coordinators of the grain response to N and S supply. Sulfate transporters and genes involved in sulfate and Met metabolism were upregulated, suggesting regulation of the pool of free amino acids and of the grain N-to-S ratio. Several genes highlighted in this study might limit the impact of S deficiency on the accumulation of grain storage proteins.
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Affiliation(s)
- Titouan Bonnot
- Genetics Diversity and Ecophysiology of Cereals, Institut National de l'Agriculture, de l'Alimentation et de l'Environnement (INRAE), Université Clermont-Auvergne, 63000 Clermont-Ferrand, France
| | - Pierre Martre
- Genetics Diversity and Ecophysiology of Cereals, Institut National de l'Agriculture, de l'Alimentation et de l'Environnement (INRAE), Université Clermont-Auvergne, 63000 Clermont-Ferrand, France
| | - Victor Hatte
- Genetics Diversity and Ecophysiology of Cereals, Institut National de l'Agriculture, de l'Alimentation et de l'Environnement (INRAE), Université Clermont-Auvergne, 63000 Clermont-Ferrand, France
| | - Mireille Dardevet
- Genetics Diversity and Ecophysiology of Cereals, Institut National de l'Agriculture, de l'Alimentation et de l'Environnement (INRAE), Université Clermont-Auvergne, 63000 Clermont-Ferrand, France
| | - Philippe Leroy
- Genetics Diversity and Ecophysiology of Cereals, Institut National de l'Agriculture, de l'Alimentation et de l'Environnement (INRAE), Université Clermont-Auvergne, 63000 Clermont-Ferrand, France
| | - Camille Bénard
- Biologie du Fruit et Pathologie, INRAE, Université de Bordeaux, Plateforme Métabolome Bordeaux, MetaboHUB-PHENOME, 33140 Villenave d'Ornon, France
| | - Natalia Falagán
- Biologie du Fruit et Pathologie, INRAE, Université de Bordeaux, Plateforme Métabolome Bordeaux, MetaboHUB-PHENOME, 33140 Villenave d'Ornon, France
| | - Marie-Laure Martin-Magniette
- L'Institut des Sciences des Plantes (IPS2), CNRS, INRAE, Université Paris-Sud, Université Evry, Université Paris-Saclay, 91400 Orsay, France
- Mathématiques et informatique appliqués (MIA)-Paris, AgroParisTech, INRAE, Université Paris-Saclay, 75231 Paris, France
| | - Catherine Deborde
- Biologie du Fruit et Pathologie, INRAE, Université de Bordeaux, Plateforme Métabolome Bordeaux, MetaboHUB-PHENOME, 33140 Villenave d'Ornon, France
| | - Annick Moing
- Biologie du Fruit et Pathologie, INRAE, Université de Bordeaux, Plateforme Métabolome Bordeaux, MetaboHUB-PHENOME, 33140 Villenave d'Ornon, France
| | - Yves Gibon
- Biologie du Fruit et Pathologie, INRAE, Université de Bordeaux, Plateforme Métabolome Bordeaux, MetaboHUB-PHENOME, 33140 Villenave d'Ornon, France
| | - Marie Pailloux
- Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes, Centre National de la Recherche Scientifique (CNRS), Université Clermont-Auvergne, 63000 Clermont-Ferrand, France
| | - Emmanuelle Bancel
- Genetics Diversity and Ecophysiology of Cereals, Institut National de l'Agriculture, de l'Alimentation et de l'Environnement (INRAE), Université Clermont-Auvergne, 63000 Clermont-Ferrand, France
| | - Catherine Ravel
- Genetics Diversity and Ecophysiology of Cereals, Institut National de l'Agriculture, de l'Alimentation et de l'Environnement (INRAE), Université Clermont-Auvergne, 63000 Clermont-Ferrand, France
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27
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Zafar SA, Hameed A, Ashraf M, Khan AS, Qamar ZU, Li X, Siddique KHM. Agronomic, physiological and molecular characterisation of rice mutants revealed the key role of reactive oxygen species and catalase in high-temperature stress tolerance. FUNCTIONAL PLANT BIOLOGY : FPB 2020; 47:440-453. [PMID: 32209204 DOI: 10.1071/fp19246] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 12/09/2019] [Indexed: 05/20/2023]
Abstract
Climatic variations have increased the occurrence of heat stress during critical growth stages, which negatively affects grain yield in rice. Plants adapt to harsh environments, and particularly high-temperature stress, by regulating their physiological and biochemical processes, which are key tolerance mechanisms. The identification of heat-tolerant rice genotypes and reliable selection indices are crucial for rice improvement programs. Here, we evaluated the response of a rice mutant population for high-temperature stress at the seedling and reproductive stages based on agronomic, physiological and molecular indices. Estimates of variance components revealed significant differences (P < 0.001) among genotypes, treatments and their interactions for almost all traits. The principal component analysis showed significant diversity among genotypes and traits under high-temperature stress. The mutant HTT-121 was identified as the most heat-tolerant mutant with higher grain yield, panicle fertility, cell membrane thermo-stability (CMTS) and antioxidant enzyme levels under heat stress. Various seedling-based morpho-physiological traits (leaf fresh weight, relative water contents, malondialdehyde, CMTS) and biochemical traits (superoxide dismutase, catalase and hydrogen peroxide) explained variations in grain yield that could be used as selection indices for heat tolerance in rice during early growth. Notably, heat-sensitive mutants accumulated reactive oxygen species, reduced catalase activity and upregulated OsSRFP1 expression under heat stress, suggesting their key roles in regulating heat tolerance in rice. The heat-tolerant mutants identified in this study could be used in breeding programs and to develop mapping populations to unravel the underlying genetic architecture for heat-stress adaptability.
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Affiliation(s)
- Syed Adeel Zafar
- Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan; and Nuclear Institute for Agriculture and Biology (NIAB), PO Box 128, Faisalabad, Pakistan; and National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Amjad Hameed
- Nuclear Institute for Agriculture and Biology (NIAB), PO Box 128, Faisalabad, Pakistan; and Corresponding authors. ;
| | - Muhammad Ashraf
- Nuclear Institute for Agriculture and Biology (NIAB), PO Box 128, Faisalabad, Pakistan
| | - Abdus Salam Khan
- Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan
| | - Zia-Ul- Qamar
- Nuclear Institute for Agriculture and Biology (NIAB), PO Box 128, Faisalabad, Pakistan
| | - Xueyong Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6001, Australia; and Corresponding authors. ;
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28
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Zhu MD, Zhang M, Gao DJ, Zhou K, Tang SJ, Zhou B, Lv YM. Rice OsHSFA3 Gene Improves Drought Tolerance by Modulating Polyamine Biosynthesis Depending on Abscisic Acid and ROS Levels. Int J Mol Sci 2020; 21:ijms21051857. [PMID: 32182761 PMCID: PMC7084839 DOI: 10.3390/ijms21051857] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/03/2020] [Accepted: 03/07/2020] [Indexed: 12/12/2022] Open
Abstract
Drought is a serious problem, which causes heavy yield losses for rice. Heat-shock factors (HSFs) had been implicated in tolerance to drought and high temperature. However, there has not been much functional characterization and mechanism clarification in rice. Previously, we found an HSF gene, OsHSFA3, was highly related with drought tolerance after screening from 10,000 different samples. Herein, we cloned the OsHSFA3 from rice and overexpressed it in Arabidopsis thaliana to study its regulatory mechanism of drought tolerance. Phenotypic and physiological assays of the transgenic Arabidopsis lines showed that overexpression of OsHSFA3 confers drought tolerance by reducing water loss and reactive oxygen species (ROS) levels, whereas it increases abscisic acid (ABA) levels. However, enzymatic antioxidants such as activity levels of superoxide dismutase, peroxidase and catalase were not significantly different between wild type and transgenic lines. Instead, we observed a significant increase in polyamine content, which was correlated with increased AtADC1, AtADC2, SPDS1 and SPMS expression levels. In silico and in vivo analyses confirmed that OsHSFA3 is a nuclear-localized gene. In addition, OsHSFA3 can bind to the promoter of AtADC1 and OsADC via a yeast one-hybrid assay. Overall, this study reveals that OsHSFA3 improves drought tolerance in Arabidopsis not only by increasing ABA levels, but also by modulating polyamine levels to maintain ROS homeostasis, therefore it could be a strong candidate to develop drought-tolerant rice cultivars.
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Affiliation(s)
- Ming-Dong Zhu
- Hunan Rice Research Institute, Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China; (M.-D.Z.); (D.-J.G.); (K.Z.); (S.-J.T.)
| | - Meng Zhang
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, China;
| | - Du-Juan Gao
- Hunan Rice Research Institute, Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China; (M.-D.Z.); (D.-J.G.); (K.Z.); (S.-J.T.)
| | - Kun Zhou
- Hunan Rice Research Institute, Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China; (M.-D.Z.); (D.-J.G.); (K.Z.); (S.-J.T.)
| | - Shan-Jun Tang
- Hunan Rice Research Institute, Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China; (M.-D.Z.); (D.-J.G.); (K.Z.); (S.-J.T.)
| | - Bin Zhou
- Hunan Rice Research Institute, Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China; (M.-D.Z.); (D.-J.G.); (K.Z.); (S.-J.T.)
- Correspondence: (B.Z.); (Y.-M.L.)
| | - Yan-Mei Lv
- Hunan Rice Research Institute, Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China; (M.-D.Z.); (D.-J.G.); (K.Z.); (S.-J.T.)
- Correspondence: (B.Z.); (Y.-M.L.)
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29
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Rolly NK, Imran QM, Lee IJ, Yun BW. Salinity Stress-Mediated Suppression of Expression of Salt Overly Sensitive Signaling Pathway Genes Suggests Negative Regulation by AtbZIP62 Transcription Factor in Arabidopsis thaliana. Int J Mol Sci 2020; 21:E1726. [PMID: 32138325 PMCID: PMC7084470 DOI: 10.3390/ijms21051726] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/26/2020] [Accepted: 03/01/2020] [Indexed: 12/31/2022] Open
Abstract
Salt stress is one of the most serious threats in plants, reducing crop yield and production. The salt overly sensitive (SOS) pathway in plants is a salt-responsive pathway that acts as a janitor of the cell to sweep out Na+ ions. Transcription factors (TFs) are key regulators of expression and/or repression of genes. The basic leucine zipper (bZIP) TF is a large family of TFs regulating various cellular processes in plants. In the current study, we investigated the role of the Arabidopsis thaliana bZIP62 TF in the regulation of SOS signaling pathway by measuring the transcript accumulation of its key genes such as SOS1, 2, and 3, in both wild-type (WT) and atbzip62 knock-out (KO) mutants under salinity stress. We further observed the activation of enzymatic and non-enzymatic antioxidant systems in the wild-type, atbzip62, atcat2 (lacking catalase activity), and atnced3 (lacking 9-cis-epoxycarotenoid dioxygenase involved in the ABA pathway) KO mutants. Our findings revealed that atbzip62 plants exhibited an enhanced salt-sensitive phenotypic response similar to atnced3 and atcat2 compared to WT, 10 days after 150 mM NaCl treatment. Interestingly, the transcriptional levels of SOS1, SOS2, and SOS3 increased significantly over time in the atbzip62 upon NaCl application, while they were downregulated in the wild type. We also measured chlorophyll a and b, pheophytin a and b, total pheophytin, and total carotenoids. We observed that the atbzip62 exhibited an increase in chlorophyll and total carotenoid contents, as well as proline contents, while it exhibited a non-significant increase in catalase activity. Our results suggest that AtbZIP62 negatively regulates the transcriptional events of SOS pathway genes, AtbZIP18 and AtbZIP69 while modulating the antioxidant response to salt tolerance in Arabidopsis.
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Affiliation(s)
- Nkulu Kabange Rolly
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea; (N.K.R.); (Q.M.I.)
- National Laboratory of Seed Testing, National Seed Service, SENASEM, Ministry of Agriculture, Kinshasa 904KIN1, Congo
| | - Qari Muhammad Imran
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea; (N.K.R.); (Q.M.I.)
| | - In-Jung Lee
- Laboratory of Crop Physiology, School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea;
| | - Byung-Wook Yun
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea; (N.K.R.); (Q.M.I.)
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30
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Wahab MMS, Akkareddy S, Shanthi P, Latha P. Identification of differentially expressed genes under heat stress conditions in rice (Oryza sativa L.). Mol Biol Rep 2020; 47:1935-1948. [PMID: 32067160 DOI: 10.1007/s11033-020-05291-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 01/29/2020] [Indexed: 11/28/2022]
Abstract
Rice production in recent years is highly affected by rapidly increasing temperatures in the tropical and sub-tropical countries, which threatens the sustainable production in near future. Hence, understanding the heat tolerance mechanism and evolving tolerant varieties is an immense need in the staple crop rice. An experiment has been conducted to identify differentially expressed genes in rice under heat stress conditions by employing a diverse set of 32 rice genotypes that includes reported heat tolerant genotypes Nagina 22 (N22) and Dular. Screening of the genotypes at field conditions during Summer-2018 for reproductive stage heat tolerance (wherein the mean minimum (29.8 °C) and maximum (38.4 °C) temperatures surpassed optimum temperatures (25 °C night/30 °C day) required for rice flowering and grain filling stages) and lab conditions employing thermal induction response (TIR) technique to know the genotype's acquired thermal tolerance revealed that the genotype FR13A (indica landrace) showed highest overall performance for multitude of traits viz., 95.29% of spikelet fertility (SF-%) at field level and 100% seedling survival percentage (SSP) at sub-lethal temperatures under laboratory conditions. The relative performance (under TIR) across all the three traits viz., relative shoot length (RSL) (4.91), relative root length (RRL) (equal to the control) and relative seedling dry weight (RSDW) (6.94) over control is high when compared to the other genotypes under study. However, the highly susceptible genotype PUSA1121 performed with 43.59 of SF%, 73.33% SSP, - 43.59 of RSL, - 36.02 of RRL over control. Hence, these contrasting genotypes were used for molecular analysis for identification of differentially expressed genes by employing 29 heat related gene specific primers. Five genes viz., OsGSK1, TT1, HSP70-OsEnS-45, OsHSP74.8 and OsHSP70 have shown differential expression between the two genotypes. Hence, the genotype FR13A, an 'indica' genotype, can be utilized in heat tolerance breeding programmes as donor parent in addition to the reported 'aus' genotypes, N22 and Dular. To our knowledge this is the first indica genotype identified for heat tolerance. The HSP70s, TT1 and OsGSK1 that proved with differential expression might be used for identification of gene specific InDels and thereby to develop functional markers that help in the marker assisted introgression breeding to develop heat tolerant varieties that can sustain production under dramatically changing climatic conditions.
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Affiliation(s)
- Mustaq Mohammed S Wahab
- Department of Genetics and Plant Breeding, S.V. Agricultural College, Acharya NG Ranga Agricultural University (ANGRAU), Tirupati, AP, 517502, India
| | - Srividhya Akkareddy
- Department of Plant Breeding, Institute of Frontier Technology, RARS, Acharya NG Ranga Agricultural University (ANGRAU), Tirupati, AP, 517502, India.
| | - P Shanthi
- Department of Genetics and Plant Breeding, S.V. Agricultural College, Acharya NG Ranga Agricultural University (ANGRAU), Tirupati, AP, 517502, India
| | - P Latha
- Department of Crop Physiology, Institute of Frontier Technology, RARS, ANGRAU, Tirupati, AP, 517502, India
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31
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Interaction between the Circadian Clock and Regulators of Heat Stress Responses in Plants. Genes (Basel) 2020; 11:genes11020156. [PMID: 32024106 PMCID: PMC7074488 DOI: 10.3390/genes11020156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023] Open
Abstract
The circadian clock is found ubiquitously in nature, and helps organisms coordinate internal biological processes with environmental cues that inform the time of the day or year. Both temperature stress and the clock affect many important biological processes in plants. Specifically, clock-controlled gene regulation and growth are impacted by a compromised clock or heat stress. The interactions linking these two regulatory pathways include several rhythmic transcription factors that are important for coordinating the appropriate response to temperature stress. Here we review the current understanding of clock control of the regulators involved in heat stress responses in plants.
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32
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Nutan KK, Singla-Pareek SL, Pareek A. The Saltol QTL-localized transcription factor OsGATA8 plays an important role in stress tolerance and seed development in Arabidopsis and rice. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:684-698. [PMID: 31613368 DOI: 10.1093/jxb/erz368] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/06/2019] [Indexed: 05/23/2023]
Abstract
GATA represents a highly conserved family of transcription factors reported in organisms ranging from fungi to angiosperms. A member of this family, OsGATA8, localized within the Saltol QTL in rice, has been reported to be induced by salinity, drought, and ABA. However, its precise role in stress tolerance has not yet been elucidated. Using genetic, molecular, and physiological analyses, in this study we show that OsGATA8 increases seed size and tolerance to abiotic stresses in both Arabidopsis and rice. Transgenic lines of rice were generated with 3-fold overexpression of OsGATA8 compared to the wild-type together with knockdown lines with 2-fold lower expression. The overexpressing lines showed higher biomass accumulation and higher photosynthetic efficiency in seedlings compared to the wild-type and knockdown lines under both normal and salinity-stress conditions. OsGATA8 appeared to be an integrator of diverse cellular processes, including K+/Na+ content, photosynthetic efficiency, relative water content, Fv/Fm ratio, and the stability to sub-cellular organelles. It also contributed to maintaining yield under stress, which was ~46% higher in overexpression plants compared with the wild-type. OsGATA8 produced these effects by regulating the expression of critical genes involved in stress tolerance, scavenging of reactive oxygen species, and chlorophyll biosynthesis.
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Affiliation(s)
- Kamlesh K Nutan
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Sneh L Singla-Pareek
- Plant Stress Biology, 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
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