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Gao Q, Yu R, Ma X, Wuriyanghan H, Yan F. Transcriptome Analysis for Salt-Responsive Genes in Two Different Alfalfa ( Medicago sativa L.) Cultivars and Functional Analysis of MsHPCA1. PLANTS (BASEL, SWITZERLAND) 2024; 13:1073. [PMID: 38674482 PMCID: PMC11054072 DOI: 10.3390/plants13081073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/02/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024]
Abstract
Alfalfa (Medicago sativa L.) is an important forage legume and soil salinization seriously affects its growth and yield. In a previous study, we identified a salt-tolerant variety 'Gongnong NO.1' and a salt-sensitive variety 'Sibeide'. To unravel the molecular mechanism involved in salt stress, we conducted transcriptomic analysis on these two cultivars grown under 0 and 250 mM NaCl treatments for 0, 12, and 24 h. Totals of 336, and 548 differentially expressed genes (DEGs) in response to NaCl were, respectively, identified in the 'Gongnong NO.1' and 'Sibeide' varieties. The Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) pathway enrichment analysis showed that the DEGs were classified in carbohydrate metabolism, energy production, transcription factor, and stress-associated pathway. Expression of MsHPCA1, encoding a putative H2O2 receptor, was responsive to both NaCl and H2O2 treatment. MsHPCA1 was localized in cell membrane and overexpression of MsHPCA1 in alfalfa increased salt tolerance and H2O2 content. This study will provide new gene resources for the improvement in salt tolerance in alfalfa and legume crops, which has important theoretical significance and potential application value.
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Affiliation(s)
- Qican Gao
- Key Laboratory of Forage and Endemic Crop Biology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (Q.G.); (R.Y.); (X.M.)
| | - Ruonan Yu
- Key Laboratory of Forage and Endemic Crop Biology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (Q.G.); (R.Y.); (X.M.)
- Crop Cultivation and Genetic Improvement Research Center, College of Agricultural, Hulunbuir University, Hulunbuir 021008, China
| | - Xuesong Ma
- Key Laboratory of Forage and Endemic Crop Biology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (Q.G.); (R.Y.); (X.M.)
| | - Hada Wuriyanghan
- Key Laboratory of Forage and Endemic Crop Biology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (Q.G.); (R.Y.); (X.M.)
| | - Fang Yan
- Key Laboratory of Forage and Endemic Crop Biology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (Q.G.); (R.Y.); (X.M.)
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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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Li C, Lu C, Yang M, Wu G, Nyasulu M, He H, He X, Bian J. Uncovering Novel QTLs and Candidate Genes for Salt Tolerance at the Bud Burst Stage in Rice through Genome-Wide Association Study. PLANTS (BASEL, SWITZERLAND) 2024; 13:174. [PMID: 38256728 PMCID: PMC10818446 DOI: 10.3390/plants13020174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/07/2023] [Accepted: 11/22/2023] [Indexed: 01/24/2024]
Abstract
Salt stress is one of the most important factors limiting rice growth and yield increase. Salt tolerance of rice at the bud burst (STB) stage determines whether germinated seeds can grow normally under salt stress, which is very important for direct seeding. However, reports on quantitative trait loci (QTLs) and candidate genes for STB in rice are very limited. In this study, a natural population of 130 indica and 81 japonica rice accessions was used to identify STB-related QTLs and candidate genes using a genome-wide association study (GWAS). Nine QTLs, including five for relative shoot length (RSL), two for relative root length (RRL), and two for relative root number (RRN), were identified. Five of these STB-related QTLs are located at the same site as the characterized salt tolerance genes, such as OsMDH1, OsSRFP1, and OsCDPK7. However, an important QTL related to RSL, qRSL1-2, has not been previously identified and was detected on chromosome 1. The candidate region for qRSL1-2 was identified by linkage disequilibrium analysis, 18 genes were found to have altered expression levels under salt stress through the RNA-seq database, and 10 of them were found to be highly expressed in the shoot. It was also found that, eight candidate genes (LOC_Os01g62980, LOC_Os01g63190, LOC_Os01g63230, LOC_Os01g63280, LOC_Os01g63400, LOC_Os01g63460, and LOC_Os01g63580) for qRSL1-2 carry different haplotypes between indica and japonica rice, which exactly corresponds to the significant difference in RSL values between indica and japonica rice in this study. Most of the accessions with elite haplotypes were indica rice, which had higher RSL values. These genes with indica-japonica specific haplotypes were identified as candidate genes. Rice accessions with elite haplotypes could be used as important resources for direct seeding. This study also provides new insights into the genetic mechanism of STB.
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Affiliation(s)
- Caijing Li
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang 330045, China; (C.L.); (C.L.); (M.Y.); (G.W.); (M.N.); (H.H.)
- Institute of Agricultural Sciences, Ganzhou 341000, China
| | - Changsheng Lu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang 330045, China; (C.L.); (C.L.); (M.Y.); (G.W.); (M.N.); (H.H.)
| | - Mengmeng Yang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang 330045, China; (C.L.); (C.L.); (M.Y.); (G.W.); (M.N.); (H.H.)
| | - Guangliang Wu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang 330045, China; (C.L.); (C.L.); (M.Y.); (G.W.); (M.N.); (H.H.)
| | - Mvuyeni Nyasulu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang 330045, China; (C.L.); (C.L.); (M.Y.); (G.W.); (M.N.); (H.H.)
| | - Haohua He
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang 330045, China; (C.L.); (C.L.); (M.Y.); (G.W.); (M.N.); (H.H.)
| | - Xiaopeng He
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang 330045, China; (C.L.); (C.L.); (M.Y.); (G.W.); (M.N.); (H.H.)
| | - Jianmin Bian
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang 330045, China; (C.L.); (C.L.); (M.Y.); (G.W.); (M.N.); (H.H.)
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Resentini F, Orozco-Arroyo G, Cucinotta M, Mendes MA. The impact of heat stress in plant reproduction. FRONTIERS IN PLANT SCIENCE 2023; 14:1271644. [PMID: 38126016 PMCID: PMC10732258 DOI: 10.3389/fpls.2023.1271644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/13/2023] [Indexed: 12/23/2023]
Abstract
The increment in global temperature reduces crop productivity, which in turn threatens food security. Currently, most of our food supply is produced by plants and the human population is estimated to reach 9 billion by 2050. Gaining insights into how plants navigate heat stress in their reproductive phase is essential for effectively overseeing the future of agricultural productivity. The reproductive success of numerous plant species can be jeopardized by just one exceptionally hot day. While the effects of heat stress on seedlings germination and root development have been extensively investigated, studies on reproduction are limited. The intricate processes of gamete development and fertilization unfold within a brief timeframe, largely concealed within the flower. Nonetheless, heat stress is known to have important effects on reproduction. Considering that heat stress typically affects both male and female reproductive structures concurrently, it remains crucial to identify cultivars with thermotolerance. In such cultivars, ovules and pollen can successfully undergo development despite the challenges posed by heat stress, enabling the completion of the fertilization process and resulting in a robust seed yield. Hereby, we review the current understanding of the molecular mechanisms underlying plant resistance to abiotic heat stress, focusing on the reproductive process in the model systems of Arabidopsis and Oryza sativa.
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Affiliation(s)
| | | | | | - Marta A. Mendes
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
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Guo R, Zhang X, Li M, Zhang H, Wu J, Zhang L, Xiao X, Han M, An N, Xing L, Zhang C. MdNup62 involved in salt and osmotic stress tolerance in apple. Sci Rep 2023; 13:20198. [PMID: 37980385 PMCID: PMC10657396 DOI: 10.1038/s41598-023-47024-9] [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: 09/09/2023] [Accepted: 11/08/2023] [Indexed: 11/20/2023] Open
Abstract
Abiotic stress of plants has serious consequences on the development of the apple industry. Nuclear pore complexes (NPCs) control nucleoplasmic transport and play an important role in the regulation of plant abiotic stress response. However, the effects of NPCs on apple salt and osmotic stress responses have not been reported yet. In this study, we analyzed the expression and function of NUCLEOPORIN 62 (MdNup62), a component of apple NPC. MdNup62 expression was significantly increased by salt and mannitol (simulated osmotic stress) treatment. The MdNup62-overexpressing (OE) Arabidopsis and tomato lines exhibited significantly reduced salt stress tolerance, and MdNup62-OE Arabidopsis lines exhibited reduced osmotic stress tolerance. We further studied the function of HEAT SHOCK FACTOR A1d (MdHSFA1d), the interacting protein of MdNup62, in salt and osmotic stress tolerance. In contrast to MdNup62, MdHSFA1d-OE Arabidopsis lines showed significantly enhanced tolerance to salt and osmotic stress. Our findings suggest a possible interaction of MdNup62 with MdHSFA1d in the mediation of nuclear and cytoplasmic transport and the regulation of apple salt and osmotic stress tolerance. These results contribute to the understanding of the salt and osmotic stress response mechanism in apple.
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Affiliation(s)
- Ruxuan Guo
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, People's Republic of China
| | - Xiaoshuang Zhang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, People's Republic of China
| | - Mingyuan Li
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, People's Republic of China
| | - Huiwen Zhang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, People's Republic of China
| | - Junkai Wu
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, People's Republic of China
| | - Libin Zhang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, People's Republic of China
| | - Xiao Xiao
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, People's Republic of China
| | - Mingyu Han
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Na An
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Libo Xing
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China.
| | - Chenguang Zhang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, People's Republic of China.
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Hua Y, Liu Q, Zhai Y, Zhao L, Zhu J, Zhang X, Jia Q, Liang Z, Wang D. Genome-wide analysis of the HSP20 gene family and its response to heat and drought stress in Coix (Coix lacryma-jobi L.). BMC Genomics 2023; 24:478. [PMID: 37612625 PMCID: PMC10464217 DOI: 10.1186/s12864-023-09580-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 08/12/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND Heat shock protein 20 (HSP20) is a member of the heat stress-related protein family, which plays critical roles in plant growth, development, and response to abiotic stresses. Although many HSP20 genes have been associated with heat stress in numerous types of plants, little is known about the details of the HSP20 gene family in Coix. To investigate the mechanisms of the ClHSP20 response to heat and drought stresses, the ClHSP20 gene family in Coix was identified and characterized based on genome-wide analysis. RESULTS A total of 32 putative ClHSP20 genes were identified and characterized in Coix. Phylogenetic analysis indicated that ClHSP20s were grouped into 11 subfamilies. The duplicated event analysis demonstrated that tandem duplication and segment duplication events played crucial roles in promoting the expansion of the ClHSP20 gene family. Synteny analysis showed that Coix shared the highest homology in 36 HSP20 gene pairs with wheat, followed by 22, 19, 15, and 15 homologous gene pairs with maize, sorghum, barley, and rice, respectively. The expression profile analysis showed that almost all ClHSP20 genes had different expression levels in at least one tissue. Furthermore, 22 of the 32 ClHSP20 genes responded to heat stress, with 11 ClHSP20 genes being significantly upregulated and 11 ClHSP20 genes being significantly downregulated. Furthermore, 13 of the 32 ClHSP20 genes responded to drought stress, with 6 ClHSP20 genes being significantly upregulated and 5 ClHSP20 genes being significantly downregulated. CONCLUSIONS Thirty-two ClHSP20 genes were identified and characterized in the genome of Coix. Tandem and segmental duplication were identified as having caused the expansion of the ClHSP20 gene family. The expression patterns of the ClHSP20 genes suggested that they play a critical role in growth, development, and response to heat and drought stress. The current study provides a theoretical basis for further research on ClHSP20s and will facilitate the functional characterization of ClHSP20 genes.
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Affiliation(s)
- Yangguang Hua
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, People's Republic of China
| | - Qiao Liu
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, People's Republic of China
| | - Yufeng Zhai
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, People's Republic of China
| | - Limin Zhao
- Jinyun County Agriculture and Rural Bureau, Jinhua, 321400, People's Republic of China
| | - Jinjian Zhu
- Jinyun County Agriculture and Rural Bureau, Jinhua, 321400, People's Republic of China
| | - Xiaodan Zhang
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, People's Republic of China
- State Key Laboratory of Dao-Di Herbs, 100700, Beijng, People's Republic of China
| | - Qiaojun Jia
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, People's Republic of China
| | - Zongsuo Liang
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, People's Republic of China
- State Key Laboratory of Dao-Di Herbs, 100700, Beijng, People's Republic of China
| | - Dekai Wang
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, People's Republic of China.
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Usman B, Derakhshani B, Jung KH. Recent Molecular Aspects and Integrated Omics Strategies for Understanding the Abiotic Stress Tolerance of Rice. PLANTS (BASEL, SWITZERLAND) 2023; 12:2019. [PMID: 37653936 PMCID: PMC10221523 DOI: 10.3390/plants12102019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/11/2023] [Accepted: 05/17/2023] [Indexed: 09/02/2023]
Abstract
Rice is an important staple food crop for over half of the world's population. However, abiotic stresses seriously threaten rice yield improvement and sustainable production. Breeding and planting rice varieties with high environmental stress tolerance are the most cost-effective, safe, healthy, and environmentally friendly strategies. In-depth research on the molecular mechanism of rice plants in response to different stresses can provide an important theoretical basis for breeding rice varieties with higher stress resistance. This review presents the molecular mechanisms and the effects of various abiotic stresses on rice growth and development and explains the signal perception mode and transduction pathways. Meanwhile, the regulatory mechanisms of critical transcription factors in regulating gene expression and important downstream factors in coordinating stress tolerance are outlined. Finally, the utilization of omics approaches to retrieve hub genes and an outlook on future research are prospected, focusing on the regulatory mechanisms of multi-signaling network modules and sustainable rice production.
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Affiliation(s)
- Babar Usman
- Graduate School of Green Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (B.U.)
| | - Behnam Derakhshani
- Graduate School of Green Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (B.U.)
| | - Ki-Hong Jung
- Graduate School of Green Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (B.U.)
- Research Center for Plant Plasticity, Kyung Hee University, Yongin 17104, Republic of Korea
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Improvement of Salinity Tolerance in Water-Saving and Drought-Resistance Rice (WDR). Int J Mol Sci 2023; 24:ijms24065444. [PMID: 36982522 PMCID: PMC10049413 DOI: 10.3390/ijms24065444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/08/2023] [Accepted: 03/10/2023] [Indexed: 03/14/2023] Open
Abstract
Rice is one of the most economically important staple food crops in the world. Soil salinization and drought seriously restrict sustainable rice production. Drought aggravates the degree of soil salinization, and, at the same time, increased soil salinity also inhibits water absorption, resulting in physiological drought stress. Salt tolerance in rice is a complex quantitative trait controlled by multiple genes. This review presents and discusses the recent research developments on salt stress impact on rice growth, rice salt tolerance mechanisms, the identification and selection of salt-tolerant rice resources, and strategies to improve rice salt tolerance. In recent years, the increased cultivation of water-saving and drought-resistance rice (WDR) has shown great application potential in alleviating the water resource crisis and ensuring food and ecological security. Here, we present an innovative germplasm selection strategy of salt-tolerant WDR, using a population that is developed by recurrent selection based on dominant genic male sterility. We aim to provide a reference for efficient genetic improvement and germplasm innovation of complex traits (drought and salt tolerance) that can be translated into breeding all economically important cereal crops.
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Malambane G, Madumane K, Sewelo LT, Batlang U. Drought stress tolerance mechanisms and their potential common indicators to salinity, insights from the wild watermelon (Citrullus lanatus): A review. FRONTIERS IN PLANT SCIENCE 2023; 13:1074395. [PMID: 36815012 PMCID: PMC9939662 DOI: 10.3389/fpls.2022.1074395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/25/2022] [Indexed: 06/18/2023]
Abstract
Climate change has escalated the effect of drought on crop production as it has negatively altered the environmental condition. Wild watermelon grows abundantly in the Kgalagadi desert even though the environment is characterized by minimal rainfall, high temperatures and intense sunshine during growing season. This area is also characterized by sandy soils with low water holding capacity, thus bringing about drought stress. Drought stress affects crop productivity through its effects on development and physiological functions as dictated by molecular responses. Not only one or two physiological process or genes are responsible for drought tolerance, but a combination of various factors do work together to aid crop tolerance mechanism. Various studies have shown that wild watermelon possess superior qualities that aid its survival in unfavorable conditions. These mechanisms include resilient root growth, timely stomatal closure, chlorophyll fluorescence quenching under water deficit as key physiological responses. At biochemical and molecular level, the crop responds through citrulline accumulation and expression of genes associated with drought tolerance in this species and other plants. Previous salinity stress studies involving other plants have identified citrulline accumulation and expression of some of these genes (chloroplast APX, Type-2 metallothionein), to be associated with tolerance. Emerging evidence indicates that the upstream of functional genes are the transcription factor that regulates drought and salinity stress responses as well as adaptation. In this review we discuss the drought tolerance mechanisms in watermelons and some of its common indicators to salinity at physiological, biochemical and molecular level.
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Vu NT, Nguyen NBT, Ha HH, Nguyen LN, Luu LH, Dao HQ, Vu TT, Huynh HTT, Le HTT. Evolutionary analysis and expression profiling of the HSP70 gene family in response to abiotic stresses in tomato ( Solanum lycopersicum). Sci Prog 2023; 106:368504221148843. [PMID: 36650980 PMCID: PMC10358566 DOI: 10.1177/00368504221148843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Heat shock protein 70 (HSP70) genes play essential roles in guarding plants against abiotic stresses, including heat, drought, and salt. In this study, the SlHSP70 gene family in tomatoes has been characterized using bioinformatic tools. 25 putative SlHSP70 genes in the tomato genome were found and classified into five subfamilies, with multi-subcellular localizations. Twelve pairs of gene duplications were identified, and segmental events were determined as the main factor for the gene family expansion. Based on public RNA-seq data, gene expression analysis identified the majority of genes expressed in the examined organelles. Further RNA-seq analysis and then quantitative RT-PCR validation showed that many SlHSP70 members are responsible for cellular feedback to heat, drought, and salt treatments, in which, at least five genes might be potential key players in the stress response. Our results provided a thorough overview of the SlHSP70 gene family in the tomato, which may be useful for the evolutionary and functional analysis of SlHSP70 under abiotic stress conditions.
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Affiliation(s)
- Nam Tuan Vu
- Department of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Bich Thi Nguyen
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hanh Hong Ha
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Linh Nhat Nguyen
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ly Han Luu
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ha Quang Dao
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Trinh Thi Vu
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hue Thu Thi Huynh
- Department of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hien Thu Thi Le
- Department of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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11
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Zhang Y, Fu J, Wang K, Han X, Yan T, Su Y, Li Y, Lin Z, Qin P, Fu C, Deng XW, Zhou D, Yang Y, He H. The telomere-to-telomere gap-free genome of four rice parents reveals SV and PAV patterns in hybrid rice breeding. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:1642-1644. [PMID: 35748695 PMCID: PMC9398309 DOI: 10.1111/pbi.13880] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 06/19/2022] [Indexed: 05/02/2023]
Affiliation(s)
- Yilin Zhang
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene ResearchPeking UniversityBeijingChina
- Peking University Institute of Advanced Agricultural SciencesShandong Laboratory of Advanced Agricultural Sciences at WeifangWeifangChina
| | - Jun Fu
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., Ltd.ChangshaChina
| | - Kai Wang
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., Ltd.ChangshaChina
- State Key Laboratory of Hybrid RiceHunan Hybrid Rice Research CenterChangshaChina
- College of Plant Science & TechnologyHuazhong Agricultural UniversityWuhanChina
| | - Xue Han
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene ResearchPeking UniversityBeijingChina
- Peking University Institute of Advanced Agricultural SciencesShandong Laboratory of Advanced Agricultural Sciences at WeifangWeifangChina
| | - Tianze Yan
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., Ltd.ChangshaChina
| | - Yanning Su
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene ResearchPeking UniversityBeijingChina
| | - Yanfeng Li
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., Ltd.ChangshaChina
| | - Zechuan Lin
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene ResearchPeking UniversityBeijingChina
| | - Peng Qin
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., Ltd.ChangshaChina
| | - Chenjian Fu
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., Ltd.ChangshaChina
| | - Xing Wang Deng
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene ResearchPeking UniversityBeijingChina
- Peking University Institute of Advanced Agricultural SciencesShandong Laboratory of Advanced Agricultural Sciences at WeifangWeifangChina
| | - Degui Zhou
- Guangdong Key Laboratory of New Technology in Rice BreedingRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, College of Life SciencesSouth China Agricultural UniversityGuangzhouChina
| | - Yuanzhu Yang
- Peking University Institute of Advanced Agricultural SciencesShandong Laboratory of Advanced Agricultural Sciences at WeifangWeifangChina
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., Ltd.ChangshaChina
- State Key Laboratory of Hybrid RiceHunan Hybrid Rice Research CenterChangshaChina
| | - Hang He
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene ResearchPeking UniversityBeijingChina
- Peking University Institute of Advanced Agricultural SciencesShandong Laboratory of Advanced Agricultural Sciences at WeifangWeifangChina
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12
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Yousefi S, Marchese A, Salami SA, Benny J, Giovino A, Perrone A, Caruso T, Gholami M, Sarikhani H, Buti M, Martinelli F. Identifying conserved genes involved in crop tolerance to cold stress. FUNCTIONAL PLANT BIOLOGY : FPB 2022; 49:861-873. [PMID: 35785800 DOI: 10.1071/fp21290] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Low temperature is a limiting factor for crop productivity in tropical and subtropical climates. Cold stress response in plants involves perceiving and relaying the signal through a transcriptional cascade composed of different transduction components, resulting in altered gene activity. We performed a meta-analysis of four previously published datasets of cold-tolerant and cold-sensitive crops to better understand the gene regulatory networks and identify key genes involved in cold stress tolerance conserved across phylogenetically distant species. Re-analysing the raw data with the same bioinformatics pipeline, we identified common cold tolerance-related genes. We found 236 and 242 commonly regulated genes in sensitive and tolerant genotypes, respectively. Gene enrichment analysis showed that protein modifications, hormone metabolism, cell wall, and secondary metabolism are the most conserved pathways involved in cold tolerance. Upregulation of the abiotic stress (heat and drought/salt) related genes [heat shock N -terminal domain-containing protein, 15.7kDa class I-related small heat shock protein-like, DNAJ heat shock N -terminal domain-containing protein, and HYP1 (HYPOTHETICAL PROTEIN 1)] in sensitive genotypes and downregulation of the abiotic stress (heat and drought/salt) related genes (zinc ion binding and pollen Ole e 1 allergen and extensin family protein) in tolerant genotypes was observed across the species. Almost all development-related genes were upregulated in tolerant and downregulated in sensitive genotypes. Moreover, protein-protein network analysis identified highly interacting proteins linked to cold tolerance. Mapping of abiotic stress-related genes on analysed species genomes provided information that could be essential to developing molecular markers for breeding and building up genetic improvement strategies using CRISPR/Cas9 technologies.
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Affiliation(s)
- Sanaz Yousefi
- Department of Horticultural Science, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
| | - Annalisa Marchese
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze - Ed. 4, 90128 Palermo, Italy
| | - Seyed Alireza Salami
- Department of Horticultural Sciences, Faculty of Agriculture and Natural Resources, University of Tehran, Karaj 31587-77871, Iran
| | - Jubina Benny
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze - Ed. 4, 90128 Palermo, Italy
| | - Antonio Giovino
- Council for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), 90011 Bagheria, Italy
| | - Anna Perrone
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Palermo 90128, Italy
| | - Tiziano Caruso
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze - Ed. 4, 90128 Palermo, Italy
| | - Mansour Gholami
- Department of Horticultural Science, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
| | - Hassan Sarikhani
- Department of Horticultural Science, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
| | - Matteo Buti
- Department of Agriculture, Food, Environment and Forestry, University of Florence, Firenze, Italy
| | - Federico Martinelli
- Department of Biology, University of Florence, Firenze, Italy; and Istituto di Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, Rome, Italy
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13
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Liu T, Zhang X, Zhang H, Cheng Z, Liu J, Zhou C, Luo S, Luo W, Li S, Xing X, Chang Y, Shi C, Ren Y, Zhu S, Lei C, Guo X, Wang J, Zhao Z, Wang H, Zhai H, Lin Q, Wan J. Dwarf and High Tillering1 represses rice tillering through mediating the splicing of D14 pre-mRNA. THE PLANT CELL 2022; 34:3301-3318. [PMID: 35670739 PMCID: PMC9421477 DOI: 10.1093/plcell/koac169] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 05/11/2022] [Indexed: 06/09/2023]
Abstract
Strigolactones (SLs) constitute a class of plant hormones that regulate many aspects of plant development, including repressing tillering in rice (Oryza sativa). However, how SL pathways are regulated is still poorly understood. Here, we describe a rice mutant dwarf and high tillering1 (dht1), which exhibits pleiotropic phenotypes (such as dwarfism and increased tiller numbers) similar to those of mutants defective in SL signaling. We show that DHT1 encodes a monocotyledon-specific hnRNP-like protein that acts as a previously unrecognized intron splicing factor for many precursor mRNAs (pre-mRNAs), including for the SL receptor gene D14. We find that the dht1 (DHT1I232F) mutant protein is impaired in its stability and RNA binding activity, causing defective splicing of D14 pre-mRNA and reduced D14 expression, and consequently leading to the SL signaling-defective phenotypes. Overall, our findings deepen our understanding of the functional diversification of hnRNP-like proteins and establish a connection between posttranscriptional splicing and SL signaling in the regulation of plant development.
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Affiliation(s)
| | | | | | | | - Jun Liu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chunlei Zhou
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, China
| | - Sheng Luo
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Weifeng Luo
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shuai Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xinxin Xing
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yanqi Chang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Cuilan Shi
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yulong Ren
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shanshan Zhu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Cailin Lei
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiuping Guo
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jie Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhichao Zhao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Haiyang Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Huqu Zhai
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qibing Lin
- Author for correspondence: (J.W.), (Q.L.)
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14
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Qin Q, Zhao Y, Zhang J, Chen L, Si W, Jiang H. A maize heat shock factor ZmHsf11 negatively regulates heat stress tolerance in transgenic plants. BMC PLANT BIOLOGY 2022; 22:406. [PMID: 35986244 PMCID: PMC9392289 DOI: 10.1186/s12870-022-03789-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Heat shock transcription factors (Hsfs) are highly conserved among eukaryote and always play vital role in plant stress responses. Whereas, function and mechanism of Hsfs in maize are limited. RESULTS In this study, an HSF gene ZmHsf11, a member of class B Hsfs, was cloned from maize, and it was up-regulated under heat treatment. ZmHsf11 was a nuclear protein with no transcriptional autoactivation activity in yeast. Overexpression of ZmHsf11 gene in Arabidopsis and rice significantly reduced the survival rate under heat shock treatment and decreased ABA sensitivity of transgenic plants. Under heat stress, transgenic rice accumulated more H2O2, increased cell death, and decreased proline content compared with wild type. In addition, RT-qPCR analysis revealed that ZmHsf11 negatively regulated some oxidative stress-related genes APX2, DREB2A, HsfA2e, NTL3, GR and HSP17 under heat stress treatment. CONCLUSIONS Our results indicate that ZmHsf11 decreases plant tolerance to heat stress by negatively regulating the expression of oxidative stress-related genes, increasing ROS levels and decreasing proline content. It is a negative regulator involved in high temperature stress response.
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Affiliation(s)
- Qianqian Qin
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Yujun Zhao
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Jiajun Zhang
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Li Chen
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Weina Si
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Haiyang Jiang
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
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15
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Li C, Lu C, Zou B, Yang M, Wu G, Wang P, Cheng Q, Wang Y, Zhong Q, Huang S, Huang T, He H, Bian J. Genome-Wide Association Study Reveals a Genetic Mechanism of Salt Tolerance Germinability in Rice ( Oryza sativa L.). FRONTIERS IN PLANT SCIENCE 2022; 13:934515. [PMID: 35909718 PMCID: PMC9335074 DOI: 10.3389/fpls.2022.934515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
Salt stress is one of the factors that limits rice production, and an important task for researchers is to cultivate rice with strong salt tolerance. In this study, 211 rice accessions were used to determine salt tolerance germinability (STG) indices and conduct a genome-wide association study (GWAS) using 36,727 SNPs. The relative germination energy (RGE), relative germination index (RGI), relative vigor index (RVI), relative mean germination time (RMGT), relative shoot length (RSL), and relative root length (RRL) were used to determine the STG indices in rice. A total of 43 QTLs, including 15 for the RGE, 6 for the RGI, 7 for the RVI, 3 for the RMGT, 1 for the RSL, and 11 for the RRL, were identified on nine chromosome regions under 60 and 100 mM NaCl conditions. For these STG-related QTLs, 18 QTLs were co-localized with previous studies, and some characterized salt-tolerance genes, such as OsCOIN, OsHsp17.0, and OsDREB2A, are located in these QTL candidates. Among the 25 novel QTLs, qRGE60-1-2 co-localized with qRGI60-1-1 on chromosome 1, and qRGE60-3-1 and qRVI60-3-1 co-localized on chromosome 3. According to the RNA-seq database, 16 genes, including nine for qRGE60-1-2 (qRGI60-1-1) and seven for qRGE60-3-1 (qRVI60-3-1), were found to show significant differences in their expression levels between the control and salt treatments. Furthermore, the expression patterns of these differentially expressed genes were analyzed, and nine genes (five for qRGE60-1-2 and four for qRGE60-3-1) were highly expressed in embryos at the germination stage. Haplotype analysis of these nine genes showed that the rice varieties with elite haplotypes in the LOC_Os03g13560, LOC_Os03g13840, and LOC_Os03g14180 genes had high STG. GWAS validated the known genes underlying salt tolerance and identified novel loci that could enrich the current gene pool related to salt tolerance. The resources with high STG and significant loci identified in this study are potentially useful in breeding for salt tolerance.
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Affiliation(s)
- Caijing Li
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Changsheng Lu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Baoli Zou
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Mengmeng Yang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Guangliang Wu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Peng Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Qin Cheng
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Yanning Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Qi Zhong
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Shiying Huang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Tao Huang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Haohua He
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
| | - Jianmin Bian
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Nanchang, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang, China
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16
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Zhang C, Zhang XI, Cheng B, Wu J, Zhang L, Xiao X, Zhang D, Zhao C, An N, Han M, Xing L. MdNup54 Interactions With MdHSP70 Involved in Flowering in Apple. FRONTIERS IN PLANT SCIENCE 2022; 13:903808. [PMID: 35865288 PMCID: PMC9296068 DOI: 10.3389/fpls.2022.903808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Flowering-related problems in "Fuji" apple have severely restricted the development of China's apple industry. Nuclear pore complexes (NPCs) control nucleoplasmic transport and play an important role in the regulation of plant growth and development. However, the effects of NPCs on apple flowering have not been reported. Here, we analysed the expression and function of MdNup54, a component of apple NPC. MdNup54 expression was the highest in flower buds and maintained during 30-70 days after flowering. MdNup54-overexpressing (OE) Arabidopsis lines displayed significantly earlier flowering than that of the wild type. We further confirmed that MdNup54 interacts with MdHSP70, MdMYB11, and MdKNAT4/6. Consistent with these observations, flowering time of MdHSP70-OE Arabidopsis lines was also significantly earlier. Therefore, our findings suggest a possible interaction of MdNup54 with MdHSP70 to mediate its nuclear and cytoplasmic transport and to regulate apple flowering. The results enhance the understanding of the flowering mechanism in apple and propose a novel strategy to study nucleoporins.
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Affiliation(s)
- Chenguang Zhang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, China
| | - XIaoshuang Zhang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, China
| | - Bo Cheng
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Junkai Wu
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, China
| | - Libin Zhang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, China
| | - Xiao Xiao
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Technology, Hebei Normal University of Science and Technology, Changli, China
| | - Dong Zhang
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Caiping Zhao
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Na An
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Mingyu Han
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Libo Xing
- College of Horticulture, Northwest A&F University, Yangling, China
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17
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Fu J, Zhang Y, Yan T, Li Y, Jiang N, Zhou Y, Zhou Q, Qin P, Fu C, Lin H, Zhong J, Han X, Lin Z, Wang F, He H, Wang K, Yang Y. Transcriptome profiling of two super hybrid rice provides insights into the genetic basis of heterosis. BMC PLANT BIOLOGY 2022; 22:314. [PMID: 35773646 PMCID: PMC9245205 DOI: 10.1186/s12870-022-03697-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 06/15/2022] [Indexed: 05/19/2023]
Abstract
BACKGROUND Heterosis is a phenomenon that hybrids show superior performance over their parents. The successful utilization of heterosis has greatly improved rice productivity, but the molecular basis of heterosis remains largely unclear. RESULTS Here, the transcriptomes of young panicles and leaves of the two widely grown two-line super hybrid rice varieties (Jing-Liang-You-Hua-Zhan (JLYHZ) and Long-Liang-You-Hua-Zhan (LLYHZ)) and their parents were analyzed by RNA-seq. Transcriptome profiling of the hybrids revealed 1,778 ~ 9,404 differentially expressed genes (DEGs) in two tissues, which were identified by comparing with their parents. GO, and KEGG enrichment analysis showed that the pathways significantly enriched in both tissues of two hybrids were all related to yield and resistance, like circadian rhythm (GO:0,007,623), response to water deprivation (GO:0,009,414), and photosynthetic genes (osa00196). Allele-specific expression genes (ASEGs) were also identified in hybrids. The ASEGs were most significantly enriched in ionotropic glutamate receptor signaling pathway, which was hypothesized to be potential amino acid sensors in plants. Moreover, the ASEGs were also differentially expressed between parents. The number of variations in ASEGs is higher than expected, especially for large effect variations. The DEGs and ASEGs are the potential reasons for the formation of heterosis in the two elite super hybrid rice. CONCLUSIONS Our results provide a comprehensive understanding of the heterosis of two-line super hybrid rice and facilitate the exploitation of heterosis in hybrid rice breeding with high yield heterosis.
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Affiliation(s)
- Jun Fu
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Yilin Zhang
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China
| | - Tianze Yan
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Yanfeng Li
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Nan Jiang
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Yanbiao Zhou
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Qunfeng Zhou
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Peng Qin
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Chenjian Fu
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Haiyan Lin
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Jing Zhong
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China
| | - Xue Han
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China
| | - Zechuan Lin
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China
| | - Fei Wang
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Hang He
- School of Advanced Agriculture Sciences and School of Life Sciences, State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China.
| | - Kai Wang
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China.
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China.
- Longping Hi-Tech (Sanya) Overseas Seed Industry R&D Co., Ltd, Sanya, 572099, China.
| | - Yuanzhu Yang
- Key Laboratory of Southern Rice Innovation & Improvement, Ministry of Agriculture and Rural Affairs, Hunan Engineering Laboratory of Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd, Changsha, 410128, China.
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China.
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125, China.
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Correa J, Amoros A, Silva H, Covarrubias J, Escalona V. Effect of Water Treatment and Immersion in Calcium Salt Solutions on the Quality of Fruits of Peumo Pink Tomato (<i>Solanum lycopersicum</i> L.) Stored under Cold Conditions. POL J FOOD NUTR SCI 2022. [DOI: 10.31883/pjfns/150028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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19
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Abideen Z, Hanif M, Munir N, Nielsen BL. Impact of Nanomaterials on the Regulation of Gene Expression and Metabolomics of Plants under Salt Stress. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11050691. [PMID: 35270161 PMCID: PMC8912827 DOI: 10.3390/plants11050691] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 05/14/2023]
Abstract
Plant salinity resistance results from a combination of responses at the physiological, molecular, cellular, and metabolic levels. This article focuses on plant stress tolerance mechanisms for controlling ion homeostasis, stress signaling, hormone metabolism, anti-oxidative enzymes, and osmotic balance after nanoparticle applications. Nanoparticles are used as an emerging tool to stimulate specific biochemical reactions related to plant ecophysiological output because of their small size, increased surface area and absorption rate, efficient catalysis of reactions, and adequate reactive sites. Regulated ecophysiological control in saline environments could play a crucial role in plant growth promotion and survival of plants under suboptimal conditions. Plant biologists are seeking to develop a broad profile of genes and proteins that contribute to plant salt resistance. These plant metabolic profiles can be developed due to advancements in genomic, proteomic, metabolomic, and transcriptomic techniques. In order to quantify plant stress responses, transmembrane ion transport, sensors and receptors in signaling transduction, and metabolites involved in the energy supply require thorough study. In addition, more research is needed on the plant salinity stress response based on molecular interactions in response to nanoparticle treatment. The application of nanoparticles as an aspect of genetic engineering for the generation of salt-tolerant plants is a promising area of research. This review article addresses the use of nanoparticles in plant breeding and genetic engineering techniques to develop salt-tolerant crops.
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Affiliation(s)
- Zainul Abideen
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan;
| | - Maria Hanif
- Department of Biotechnology, Lahore College for Women University, Lahore 54000, Pakistan;
| | - Neelma Munir
- Department of Biotechnology, Lahore College for Women University, Lahore 54000, Pakistan;
- Correspondence: (N.M.); (B.L.N.)
| | - Brent L. Nielsen
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, USA
- Correspondence: (N.M.); (B.L.N.)
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20
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Lv Y, Ma J, Wei H, Xiao F, Wang Y, Jahan N, Hazman M, Qian Q, Shang L, Guo L. Combining GWAS, Genome-Wide Domestication and a Transcriptomic Analysis Reveals the Loci and Natural Alleles of Salt Tolerance in Rice ( Oryza sativa L.). FRONTIERS IN PLANT SCIENCE 2022; 13:912637. [PMID: 35783926 PMCID: PMC9248812 DOI: 10.3389/fpls.2022.912637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/23/2022] [Indexed: 05/12/2023]
Abstract
Soil salinity poses a serious threat to the sustainable production of rice (Oryza sativa L.) throughout the world. Thus, the detection of loci and alleles responsible for salt tolerance is fundamental to accelerating the improvement of rice and producing the resilient varieties that will ensure future harvests. In this study, we collected a set of 191 mini-core rice populations from around the world, evaluated their salt tolerance based on plant growth and development phenotypes at the seedling stage, and divided a standard evaluation score (SES) of visual salt injury into five different grades. We used ∼3.82 million single nucleotide polymorphisms (SNPs) to identify 155 significant SNPs and 275 genes associated with salt sensitivity based on a genome-wide association study (GWAS) of SES. In particular, two candidate genes, ZFP179 and OsDSR2, were associated with salt tolerance, and OsHKT1;1 was co-detected in the entire GWAS of all the panels and indica. Additionally, we investigated the transcriptional changes in cultivars 93-11 and PA64s under normal and salinity stress conditions and found 517 co-upregulated and 223 co-downregulated genes. These differentially expressed genes (DEGs) were highly enriched in "response to chemical" and "stress" based on the gene ontology enrichment analysis. Notably, 30 candidate genes that were associated with the salt tolerance analysis were obtained by integrating GWAS and transcriptomic DEG analyses, including 13 cloned genes that had no reports of tolerance to salt and 17 candidate genes whose functions were unknown. To further explore these genes and their alleles, we performed haplotype analysis, genome-wide domestication detection, and transcriptome analysis to breed improved varieties. This data and the genetic resources provided will be valuable for the development of salt tolerant rice varieties.
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Affiliation(s)
- Yang Lv
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Jie Ma
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Hua Wei
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Fang Xiao
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Yueying Wang
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Noushin Jahan
- Department of Agronomy, Khulna Agricultural University, Khulna, Bangladesh
| | - Mohamed Hazman
- Agricultural Genetic Engineering Research Institute, Giza, Egypt
| | - Qian Qian
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Lianguang Shang
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- *Correspondence: Longbiao Guo,
| | - Longbiao Guo
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- *Correspondence: Longbiao Guo,
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21
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Yu C, Rong M, Liu Y, Sun P, Xu Y, Wei J. Genome-Wide Identification and Characterization of HSP70 Gene Family in Aquilaria sinensis (Lour.) Gilg. Genes (Basel) 2021; 13:genes13010008. [PMID: 35052349 PMCID: PMC8774897 DOI: 10.3390/genes13010008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/11/2021] [Accepted: 12/17/2021] [Indexed: 01/15/2023] Open
Abstract
The heat shock protein 70 (HSP70) gene family perform a fundamental role in protecting plants against biotic and abiotic stresses. Aquilaria sinensis is a classic stress-induced medicinal plant, producing a valuable dark resin in a wood matrix, known as agarwood, in response to environmental stresses. The HSP70 gene family has been systematic identified in many plants, but there is no comprehensive analysis at the genomic level in A. sinensis. In this study, 15 putative HSP70 genes were identified in A. sinensis through genome-wide bioinformatics analysis. Based on their phylogenetic relationships, the 15 AsHSP70 were grouped into six sub-families that with the conserved motifs and gene structures, and the genes were mapped onto six separate linkage groups. A qRT-PCR analysis showed that the relative expression levels of all the AsHSP70 genes were up-regulated by heat stress. Subcellular localization of all HSP70s was predicted, and three were verified by transiently expressed in Arabidopsis protoplasts. Based on the expression profiles in different tissues and different layers treated with Agar-Wit, we predict AsHSP70 genes are involved in different stages of agarwood formation. The systematic identification and expression analysis of HSP70s gene family imply some of them may play important roles in the formation of agarwood. Our findings not only provide a foundation for further study their biological function in the later research in A. sinensis, but also provides a reference for the analysis of HSPs in other species.
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Affiliation(s)
- Cuicui Yu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; (C.Y.); (M.R.); (Y.L.); (P.S.)
| | - Mei Rong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; (C.Y.); (M.R.); (Y.L.); (P.S.)
| | - Yang Liu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; (C.Y.); (M.R.); (Y.L.); (P.S.)
| | - Peiwen Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; (C.Y.); (M.R.); (Y.L.); (P.S.)
| | - Yanhong Xu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; (C.Y.); (M.R.); (Y.L.); (P.S.)
- Correspondence: (Y.X.); (J.W.)
| | - Jianhe Wei
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; (C.Y.); (M.R.); (Y.L.); (P.S.)
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, China
- Correspondence: (Y.X.); (J.W.)
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22
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He H, Wang Q, Wang L, Yang K, Yang R, You C, Ke J, Wu L. Photosynthetic physiological response of water-saving and drought-resistant rice to severe drought under wetting-drying alternation irrigation. PHYSIOLOGIA PLANTARUM 2021; 173:2191-2206. [PMID: 34549440 DOI: 10.1111/ppl.13568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/14/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Water-saving and drought-resistant rice (WDR) is widely grown in central China in recent years. However, studies have not explored the interaction effect of WDR and irrigation regimes on drought-resistance capacities under severe drought at sensitive growth periods. A pot experiment was conducted using a WDR cultivar Hanyou73 (HY73) and traditional high-yielding and drought-sensitive cultivar Huiliangyou 898 (HLY898). Three irrigation regimes, including flooding irrigation (W1), mild wetting-drying alternation irrigation (W2), and severe wetting-drying alternation irrigation (W3), were applied before heading. At heading, severe drought with -50 KPa soil water potential was established for all treatments and cultivars. The findings showed that cultivar HY73 under W2 treatment had the highest yield, 1000-grain yield, filled grain, relative water content, and photosynthesis potential compared with the other combinations. The higher net photosynthetic rate (Pn ) was attributed to larger mesophyll conductance (gm ) in drought for cultivar HY73 under W2 treatment compared with that for cultivar HLY898 and the other water treatments. Enhanced photo-respiration rate may be an important photoprotection mechanism for achieving high Pn for cultivar HY73 coupled with W2 treatment than for other combinations in drought. The relative expression level of OsPIP1;1 gene was significantly down-regulated during drought in all cultivars and water regimes. But OsPIP1;2, OsPIP2;3, OsTIP2;2, and OsTIP3;1 genes were upregulated to alleviate the significant decrease in gs and gm under drought. These results suggest that WDR and mild wetting-drying alternation irrigation (W2) have significant interaction effects in improving photosynthetic production potential by maintaining higher gm under severe drought.
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Affiliation(s)
- Haibing He
- Agricultural College, Anhui Agricultural University, Hefei, Anhui, China
| | - Quan Wang
- Agricultural College, Anhui Agricultural University, Hefei, Anhui, China
| | - Lele Wang
- Agricultural College, Anhui Agricultural University, Hefei, Anhui, China
| | - Kun Yang
- Agricultural College, Anhui Agricultural University, Hefei, Anhui, China
| | - Ru Yang
- Agricultural College, Anhui Agricultural University, Hefei, Anhui, China
| | - Cuicui You
- Agricultural College, Anhui Agricultural University, Hefei, Anhui, China
| | - Jian Ke
- Agricultural College, Anhui Agricultural University, Hefei, Anhui, China
| | - Liquan Wu
- Agricultural College, Anhui Agricultural University, Hefei, Anhui, China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, China
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23
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Mbinda W, Mukami A. A Review of Recent Advances and Future Directions in the Management of Salinity Stress in Finger Millet. FRONTIERS IN PLANT SCIENCE 2021; 12:734798. [PMID: 34603359 PMCID: PMC8481900 DOI: 10.3389/fpls.2021.734798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Salinity stress is a major environmental impediment affecting the growth and production of crops. Finger millet is an important cereal grown in many arid and semi-arid areas of the world characterized by erratic rainfall and scarcity of good-quality water. Finger millet salinity stress is caused by the accumulation of soluble salts due to irrigation without a proper drainage system, coupled with the underlying rocks having a high salt content, which leads to the salinization of arable land. This problem is projected to be exacerbated by climate change. The use of new and efficient strategies that provide stable salinity tolerance across a wide range of environments can guarantee sustainable production of finger millet in the future. In this review, we analyze the strategies that have been used for salinity stress management in finger millet production and discuss potential future directions toward the development of salt-tolerant finger millet varieties. This review also describes how advanced biotechnological tools are being used to develop salt-tolerant plants. The biotechnological techniques discussed in this review are simple to implement, have design flexibility, low cost, and highly efficient. This information provides insights into enhancing finger millet salinity tolerance and improving production.
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Affiliation(s)
- Wilton Mbinda
- Department of Biochemistry and Biotechnology, Pwani University, Kilifi, Kenya
- Pwani University Biosciences Research Centre (PUBReC), Pwani University, Kilifi, Kenya
| | - Asunta Mukami
- Department of Life Sciences, South Eastern Kenya University, Kitui, Kenya
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24
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Wang Z, Zhang Q, Qin J, Xiao G, Zhu S, Hu T. OsLEA1a overexpression enhances tolerance to diverse abiotic stresses by inhibiting cell membrane damage and enhancing ROS scavenging capacity in transgenic rice. FUNCTIONAL PLANT BIOLOGY : FPB 2021; 48:860-870. [PMID: 33820598 DOI: 10.1071/fp20231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 03/11/2021] [Indexed: 05/14/2023]
Abstract
Late embryogenesis abundant (LEA) proteins are involved in diverse abiotic stresses tolerance in many different organisms. Our previous studies have shown that the heterologous expression of OsLEA1a interfered with the resistance of Escherichia coli to abiotic stresses. However, in the present study, based on growth status and physiological indices of rice plant, the overexpression of OsLEA1a in rice conferred increased resistance to abiotic stresses compared with the wild-type (WT) plants. Before applying abiotic stresses, there were no significant differences in physiological indices of rice seedlings. After NaCl, sorbitol, CuSO4 and H2O2 stresses, the transgenic lines had lower relative electrical conductivity, malondialdehyde and lipid peroxidation, greater the contents of proline, soluble sugar and glutathione, and higher the activities of superoxide dismutase, catalase and peroxidase than the WT plants. The results indicate that the OsLEA1a gene is involved in the protective response of plants to various abiotic stresses by inhibiting cell membrane damage and enhancing reactive oxygen species scavenging capacity. It was speculated that post-translational modification causes OsLEA1a functional differences in E. coli and rice. The present study shows that OsLEA1a could be a useful candidate gene for engineering abiotic stress tolerance in cultivated plants.
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Affiliation(s)
- Zhaodan Wang
- Engineering Technology Research Centre of Characteristic Biological Resources in Northeast of Chongqing, College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404120, China
| | - Qian Zhang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Juan Qin
- Engineering Technology Research Centre of Characteristic Biological Resources in Northeast of Chongqing, College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404120, China
| | - Guosheng Xiao
- Engineering Technology Research Centre of Characteristic Biological Resources in Northeast of Chongqing, College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404120, China
| | - Shanshan Zhu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Tingzhang Hu
- Engineering Technology Research Centre of Characteristic Biological Resources in Northeast of Chongqing, College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404120, China; and Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China; and Corresponding author.
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25
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Overexpression of OsERF83, a Vascular Tissue-Specific Transcription Factor Gene, Confers Drought Tolerance in Rice. Int J Mol Sci 2021; 22:ijms22147656. [PMID: 34299275 PMCID: PMC8304134 DOI: 10.3390/ijms22147656] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/12/2021] [Accepted: 07/14/2021] [Indexed: 11/17/2022] Open
Abstract
Abiotic stresses severely affect plant growth and productivity. To cope with abiotic stresses, plants have evolved tolerance mechanisms that are tightly regulated by reprogramming transcription factors (TFs). APETALA2/ethylene-responsive factor (AP2/ERF) transcription factors are known to play an important role in various abiotic stresses. However, our understanding of the molecular mechanisms remains incomplete. In this study, we identified the role of OsERF83, a member of the AP2/ERF transcription factor family, in response to drought stress. OsERF83 is a transcription factor localized to the nucleus and induced in response to various abiotic stresses, such as drought and abscisic acid (ABA). Overexpression of OsERF83 in transgenic plants (OsERF83OX) significantly increased drought tolerance, with higher photochemical efficiency in rice. OsERF83OX was also associated with growth retardation, with reduced grain yields under normal growth conditions. OsERF83 is predominantly expressed in the vascular tissue of all organs. Transcriptome analysis revealed that OsERF83 regulates drought response genes, which are related to the transporter (OsNPF8.10, OsNPF8.17, OsLH1), lignin biosynthesis (OsLAC17, OsLAC10, CAD8D), terpenoid synthesis (OsTPS33, OsTPS14, OsTPS3), cytochrome P450 family (Oscyp71Z4, CYP76M10), and abiotic stress-related genes (OsSAP, OsLEA14, PCC13-62). OsERF83 also up-regulates biotic stress-associated genes, including PATHOGENESIS-RELATED PROTEIN (PR), WALL-ASSOCIATED KINASE (WAK), CELLULOSE SYNTHASE-LIKE PROTEIN E1 (CslE1), and LYSM RECEPTOR-LIKE KINASE (RLK) genes. Our results provide new insight into the multiple roles of OsERF83 in the cross-talk between abiotic and biotic stress signaling pathways.
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26
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Engineering cereal crops for enhanced abiotic stress tolerance. PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 2021. [DOI: 10.1007/s43538-021-00006-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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27
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Qin F, Yu B, Li W. Heat shock protein 101 (HSP101) promotes flowering under nonstress conditions. PLANT PHYSIOLOGY 2021; 186:407-419. [PMID: 33561259 PMCID: PMC8154077 DOI: 10.1093/plphys/kiab052] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 01/10/2021] [Indexed: 05/13/2023]
Abstract
Heat shock proteins (HSPs) are stress-responsive proteins that are conserved across all organisms. Heat shock protein 101 (HSP101) has an important role in thermotolerance owing to its chaperone activity. However, if and how it functions in development under nonstress conditions is not yet known. By using physiological, molecular, and genetic methods, we investigated the role of HSP101 in the control of flowering in Arabidopsis (Arabidopsis thaliana (L.) Heynh.) under nonstress conditions. Knockout and overexpression of HSP101 cause late and early flowering, respectively. Late flowering can be restored by rescue of HSP101. HSP101 regulates the expression of genes involved in the six known flowering pathways; the most negatively regulated genes are FLOWERING LOCUS C (FLC) and SHORT VEGETATIVE PHASE (SVP); downstream integrators of the flowering pathways are positively regulated. The late-flowering phenotype of loss-of-HSP101 mutants is suppressed by both the mutations of FLC and SVP. The responses of flowering time to exogenous signals do not change in HSP101 mutants. HSP101 is also found in nonspecific regions according to subcellular localization. We found that HSP101 promotes flowering under nonstress conditions and that this promotion depends on FLC and SVP. Our data suggest that this promotion could occur through a multiple gene regulation mechanism.
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Affiliation(s)
- Feng Qin
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Buzhu Yu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Yuxi Normal University, Yuxi 653100, China
| | - Weiqi Li
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
- Author for communication:
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28
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He Y, Yao Y, Li L, Li Y, Gao J, Fan M. A heat-shock 20 protein isolated from watermelon (ClHSP22.8) negatively regulates the response of Arabidopsis to salt stress via multiple signaling pathways. PeerJ 2021; 9:e10524. [PMID: 33717662 PMCID: PMC7931717 DOI: 10.7717/peerj.10524] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/17/2020] [Indexed: 01/09/2023] Open
Abstract
Heat-shock protein 20s (HSP20) were initially shown to play a role during heat shock stress; however, recent data indicated that HSP20 proteins are also involved in abiotic stress in plants. Watermelon is known to be vulnerable to various stressors; however, HSP20 proteins have yet to be investigated and characterized in the watermelon. In a previous study, we identified a negative regulator of salt stress response from watermelon: ClHSP22.8, a member of the HSP20 family. Quantitative real-time PCR (qRT-PCR) and promoter::β-glucuronidase (GUS) analysis revealed that ClHSP22.8 was expressed widely in a range of different tissues from the watermelon, but particularly in the roots of 7-day-old seedlings and flowers. Furthermore, qRT-PCR and GUS staining showed that the expression of ClHSP22.8 was significantly repressed by exogenous abscisic acid (ABA) and salt stress. The over-expression of ClHSP22.8 in Arabidopsis lines resulted in hypersensitivity to ABA and reduced tolerance to salt stress. Furthermore, the expression patterns of key regulators associated with ABA-dependent and independent pathways, and other stress-responsive signaling pathways, were also repressed in transgenic lines that over-expressed ClHSP22.8. These results indicated that ClHSP22.8 is a negative regulator in plant response to salt stress and occurs via ABA-dependent and independent, and other stress-responsive signaling pathways.
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Affiliation(s)
- Yanjun He
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou, Zhejiang, China
| | - Yixiu Yao
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou, Zhejiang, China.,College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Lili Li
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou, Zhejiang, China.,College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Yulin Li
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou, Zhejiang, China.,College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Jie Gao
- College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Min Fan
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou, Zhejiang, China
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29
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Qin C, Ahanger MA, Lin B, Huang Z, Zhou J, Ahmed N, Ai S, Mustafa NSA, Ashraf M, Zhang L. Comparative transcriptome analysis reveals the regulatory effects of acetylcholine on salt tolerance of Nicotiana benthamiana. PHYTOCHEMISTRY 2021; 181:112582. [PMID: 33246307 DOI: 10.1016/j.phytochem.2020.112582] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 10/30/2020] [Accepted: 11/02/2020] [Indexed: 05/08/2023]
Abstract
Salinity is a major cause of crop losses worldwide. Acetylcholine (ACh) can ameliorate the adverse effects of abiotic stresses on plant growth, including salinity stress; however, the underlying molecular mechanisms of this process are unclear. Here, seedlings of Nicotiana benthamiana grown under normal conditions or exposed to 150 mmol L-1 NaCl salinity stress were then treated with a root application of 10 μM ACh. Exogenous ACh application resulted in the downregulation of the activity of the antioxidant enzymes, ascorbate peroxidase, and catalase. ACh-treated plants had lower levels of reactive oxygen species, including the superoxide anion radical and hydrogen peroxide. Transcriptome analysis indicated that ACh treatment under salt stress promoted the differential expression of 658 genes in leaves of N. benthamiana (527 were upregulated and 131 were downregulated). Gene ontology enrichment and Kyoto Encyclopedia of Genes and Genomes pathway analyses revealed that exogenous ACh application was associated with a substantial increase in the transcripts of genes related to cell wall peroxidases, xyloglucan endotransglucosylases or hydrolases, and expansins, indicating that ACh activates cell wall biosynthesis in salt-stressed plants. ACh also enhanced the expression of genes associated with the auxin, gibberellin, brassinosteroid, and salicylic acid signalling pathways, indicating that ACh induces the activation of these pathways under salt stress. Collectively, these findings indicate that ACh-induced salt tolerance in N. benthamiana seedlings is mediated by the inhibition of antioxidant enzymes, activation of cell wall biosynthesis, and hormone signalling pathways. Stress-induced genes involved in osmotic regulation and oxidation resistance were induced by ACh under salt stress. The genes whose transcript levels were elevated by ACh treatment in salt-stressed N. benthamiana could be used as molecular markers of the physiological status of plants under salt stress.
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Affiliation(s)
- Cheng Qin
- College of Life Sciences, Northwest Agriculture & Forestry University, 712100, Yangling, China
| | - Mohammad Abass Ahanger
- College of Life Sciences, Northwest Agriculture & Forestry University, 712100, Yangling, China
| | - Bo Lin
- College of Life Sciences, Northwest Agriculture & Forestry University, 712100, Yangling, China
| | - Ziguang Huang
- College of Life Sciences, Northwest Agriculture & Forestry University, 712100, Yangling, China
| | - Jie Zhou
- Cangzhou Central Hospital, 061000 Cangzhou, China
| | - Nadeem Ahmed
- College of Life Sciences, Northwest Agriculture & Forestry University, 712100, Yangling, China
| | - Suilong Ai
- Shaanxi Tobacco Scientific Institution, 71000, Xi'an, China
| | - Nabil S A Mustafa
- Department of Pomology, National Research Centre, 12622 Cairo, Egypt
| | - Muhammad Ashraf
- University of Agriculture, Faisalabad, 38000 Faisalabad, Pakistan
| | - Lixin Zhang
- College of Life Sciences, Northwest Agriculture & Forestry University, 712100, Yangling, China.
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Li Q, Ma C, Tai H, Qiu H, Yang A. Comparative transcriptome analysis of two rice genotypes differing in their tolerance to saline-alkaline stress. PLoS One 2020; 15:e0243112. [PMID: 33259539 PMCID: PMC7707490 DOI: 10.1371/journal.pone.0243112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 11/14/2020] [Indexed: 11/18/2022] Open
Abstract
Saline-alkaline stress is an abiotic stress that suppresses rice plant growth and reduces yield. However, few studies have investigated the mechanism by which rice plants respond to saline-alkaline stress at a global transcriptional level. Dongdao-4 and Jigeng-88, which differ in their tolerance to saline-alkaline stress, were used to explore gene expression differences under saline-alkaline stress by RNA-seq technology. In seedlings of Dongdao-4 and Jigeng-88, 3523 and 4066 genes with differential levels of expression were detected, respectively. A total of 799 genes were upregulated in the shoots of both Dongdao-4 and Jigeng-88, while 411 genes were upregulated in the roots of both genotypes. Among the downregulated genes in Dongdao-4 and Jigeng-88, a total of 453 and 372 genes were found in shoots and roots, respectively. Gene ontology (GO) analysis showed that upregulated genes were enriched in several GO terms such as response to stress, response to jasmonic acid, organic acid metabolic process, nicotianamine biosynthetic process, and iron homeostasis. The downregulated genes were enriched in several GO terms, such as photosynthesis and response to reactive oxygen species. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed that Dongdao-4 seedlings were specifically enriched in the biosynthesis of secondary metabolites such as diterpenoids and phenylpropanoids. The upregulated genes that were involved in secondary metabolite biosynthesis, amino acid biosynthesis, betalain biosynthesis, organic acid metabolic process, and iron homeostasis pathways may be central to saline-alkaline tolerance in both rice genotypes. In contrast, the genes involved in the diterpenoid and phenylpropanoid biosynthesis pathways may contribute to the greater tolerance to saline-alkaline stress in Dongdao-4 seedlings than in Jigeng-88. These results suggest that Dongdao-4 was equipped with a more efficient mechanism involved in multiple biological processes to adapt to saline-alkaline stress.
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Affiliation(s)
- Qian Li
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
- * E-mail: (AY); (QL)
| | - Changkun Ma
- State Key Laboratory of Eco-hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an, China
| | - Huanhuan Tai
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Huan Qiu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
| | - An Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, the Chinese Academy of Sciences, Beijing, China
- * E-mail: (AY); (QL)
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Zhang X, Wu H, Chen J, Chen L, Wan X. Chloride and amino acids are associated with K +-alleviated drought stress in tea (Camellia sinesis). FUNCTIONAL PLANT BIOLOGY : FPB 2020; 47:398-408. [PMID: 32138810 DOI: 10.1071/fp19221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
Drought is one of the main limiting factors affecting tea plant yield and quality. Previous studies have reported that K+ (potassium) application significantly alleviated drought-induced damage in tea plants. However, the intrinsic mechanisms underlying K+-alleviated drought stress are still obscure. In our study, two contrasting varieties, Taicha12 (drought tolerant) and Fuyun6 (drought sensitive), were used to investigate the intrinsic mechanisms behind K+-alleviated drought stress in tea plants. In the present study, we compared with the case of tea plants under drought: higher water and chlorophyll contents were found in drought-stressed tea plants with an external K+ supply, confirming the role of externally supplied K+ in mitigating drought stress. We also found that an adequate K+ supply promoted Cl- accumulation in the mesophyll of Taicha12 (drought tolerant) over that of in Fuyun6 (drought sensitive). Moreover, Gly, Cys, Lys and Arg were not detected in Fuyun6 under 'Drought' or 'Drought + K+' conditions. Results showed that an exogenous supply of Arg and Val significantly alleviated drought-induced damage in Fuyun6, suggesting their role in K+-alleviated drought stress in tea plants. Collectively, our results show that chloride and amino acids are important components associated with K+-alleviated drought stress in tea plants.
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Affiliation(s)
- Xianchen Zhang
- State Key Laboratory of Tea Plant Biology and Utilisation, Anhui Agricultural University, Hefei, 230036, China
| | - Honghong Wu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; and College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Jingguang Chen
- CAAS-IRRI Joint Laboratory for Genomics-Assisted Germplasm Enhancement, Agricultural Genomics Institute in Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Linmu Chen
- State Key Laboratory of Tea Plant Biology and Utilisation, Anhui Agricultural University, Hefei, 230036, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilisation, Anhui Agricultural University, Hefei, 230036, China; and Corresponding author.
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Li Q, Qin Y, Hu X, Li G, Ding H, Xiong X, Wang W. Transcriptome analysis uncovers the gene expression profile of salt-stressed potato (Solanum tuberosum L.). Sci Rep 2020; 10:5411. [PMID: 32214109 PMCID: PMC7096413 DOI: 10.1038/s41598-020-62057-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/05/2020] [Indexed: 12/14/2022] Open
Abstract
Potato (Solanum tuberosum L.) is an important staple food worldwide. However, its growth has been heavily suppressed by salt stress. The molecular mechanisms of salt tolerance in potato remain unclear. It has been shown that the tetraploid potato Longshu No. 5 is a salt-tolerant genotype. Therefore, in this study we conducted research to identify salt stress response genes in Longshu No. 5 using a NaCl treatment and time-course RNA sequencing. The total number of differentially expressed genes (DEGs) in response to salt stress was 5508. Based on Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, it was found that DEGs were significantly enriched in the categories of nucleic acid binding, transporter activity, ion or molecule transport, ion binding, kinase activity and oxidative phosphorylation. Particularly, the significant differential expression of encoding ion transport signaling genes suggests that this signaling pathway plays a vital role in salt stress response in potato. Finally, the DEGs in the salt response pathway were verified by Quantitative real-time PCR (qRT-PCR). These results provide valuable information on the salt tolerance of molecular mechanisms in potatoes, and establish a basis for breeding salt-tolerant cultivars.
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Affiliation(s)
- Qing Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Root and Tuber Crops, Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
- College of Horticulture, Hunan Agricultural University/Hunan Provincial Engineering Research Center for Potatoes/Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha, 410128, China
| | - Yuzhi Qin
- College of Horticulture, Hunan Agricultural University/Hunan Provincial Engineering Research Center for Potatoes/Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha, 410128, China
| | - Xinxi Hu
- College of Horticulture, Hunan Agricultural University/Hunan Provincial Engineering Research Center for Potatoes/Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha, 410128, China
| | - Guangcun Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Root and Tuber Crops, Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - Hongying Ding
- College of Horticulture, Hunan Agricultural University/Hunan Provincial Engineering Research Center for Potatoes/Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha, 410128, China
| | - Xingyao Xiong
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Root and Tuber Crops, Ministry of Agriculture and Rural Affairs, Beijing, 100081, China.
- College of Horticulture, Hunan Agricultural University/Hunan Provincial Engineering Research Center for Potatoes/Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha, 410128, China.
| | - Wanxing Wang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Root and Tuber Crops, Ministry of Agriculture and Rural Affairs, Beijing, 100081, China.
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Wang J, Gao X, Dong J, Tian X, Wang J, Palta JA, Xu S, Fang Y, Wang Z. Over-Expression of the Heat-Responsive Wheat Gene TaHSP23.9 in Transgenic Arabidopsis Conferred Tolerance to Heat and Salt Stress. FRONTIERS IN PLANT SCIENCE 2020; 11:243. [PMID: 32211001 PMCID: PMC7069362 DOI: 10.3389/fpls.2020.00243] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 02/17/2020] [Indexed: 05/09/2023]
Abstract
The small heat shock proteins (sHSP) are stress-induced proteins with molecular weights ranging from 12 to 42 kDa that act as molecular chaperones to prevent the irreversible aggregation of denaturing proteins. In this study, we cloned the heat responsive gene TaHSP23.9 from wheat (Triticum aestivum) based on TMT-labeled quantitative proteomic analysis in our previous work and examined its function in the response of transgenic Arabidopsis to heat and salt stress. Amino acid alignment and phylogenetic tree analysis showed that TaHSP23.9 contained a typically conserved structure of the alpha-crystallin domain and is closely related to OsHSP23.2 in rice. Transient expression assays demonstrated that TaHSP23.9 is located on the endoplasmic reticulum. Quantitative real-time PCR demonstrated that TaHSP23.9 was expressed much more in filling grains under normal conditions and was significantly upregulated by heat and salt stress. Transgenic Arabidopsis plants that constitutively over-expressed TaHSP23.9 had no visible differences or adverse phenotypes compared with the wild type under normal conditions but exhibited enhanced tolerance to heat and salt stress under stress conditions. In addition, we found that the expression level of TaHSP23.9 was significantly higher in the heat-tolerant wheat varieties than in the heat-sensitive varieties. Our results suggest that TaHSP23.9 may function as a protein chaperone to positively regulate plant responses to heat and salt stress and could be developed as a molecular marker for screening heat-tolerant wheat varieties.
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Affiliation(s)
- Jun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Xin Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Jun Dong
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Xinyu Tian
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Junzhe Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Jairo A. Palta
- CSIRO Agriculture and Food, Wembley, WA, Australia
- The UWA Institute of Agriculture and School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
| | - Shengbao Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Yan Fang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, China
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
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Li W, Dang C, Ye Y, Wang Z, Hu L, Zhang F, Zhang Y, Qian X, Shi J, Guo Y, Zhou Q, Wang T, Chen X, Wang F. Overexpression of Grapevine VvIAA18 Gene Enhanced Salt Tolerance in Tobacco. Int J Mol Sci 2020; 21:E1323. [PMID: 32075333 PMCID: PMC7072961 DOI: 10.3390/ijms21041323] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 11/16/2022] Open
Abstract
In plants, auxin/indoleacetic acid (Aux/IAA) proteins are transcriptional regulators that regulate developmental process and responses to phytohormones and stress treatments. However, the regulatory functions of the Vitis vinifera L. (grapevine) Aux/IAA transcription factor gene VvIAA18 have not been reported. In this study, the VvIAA18 gene was successfully cloned from grapevine. Subcellular localization analysis in onion epidermal cells indicated that VvIAA18 was localized to the nucleus. Expression analysis in yeast showed that the full length of VvIAA18 exhibited transcriptional activation. Salt tolerance in transgenic tobacco plants and Escherichia. coli was significantly enhanced by VvIAA18 overexpression. Real-time quantitative PCR analysis showed that overexpression of VvIAA18 up-regulated the salt stress-responsive genes, including pyrroline-5-carboxylate synthase (NtP5CS), late embryogenesis abundant protein (NtLEA5), superoxide dismutase (NtSOD), and peroxidase (NtPOD) genes, under salt stress. Enzymatic analyses found that the transgenic plants had higher SOD and POD activities under salt stress. Meanwhile, component analysis showed that the content of proline in transgenic plants increased significantly, while the content of hydrogen peroxide (H2O2) and malondialdehyde (MDA) decreased significantly. Based on the above results, the VvIAA18 gene is related to improving the salt tolerance of transgenic tobacco plants. The VvIAA18 gene has the potential to be applied to enhance plant tolerance to abiotic stress.
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Affiliation(s)
- Wei Li
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Changxi Dang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Yuxiu Ye
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Zunxin Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Laibao Hu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Fan Zhang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China;
| | - Yang Zhang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Xingzhi Qian
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Jiabin Shi
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Yanyun Guo
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Qing Zhou
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Tailin Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Xinhong Chen
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
| | - Feibing Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; (W.L.); (C.D.); (Y.Y.); (Z.W.); (L.H.); (Y.Z.); (X.Q.); (J.S.); (Y.G.); (Q.Z.); (T.W.)
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Sarkar NK, Kotak S, Agarwal M, Kim YK, Grover A. Silencing of class I small heat shock proteins affects seed-related attributes and thermotolerance in rice seedlings. PLANTA 2019; 251:26. [PMID: 31797121 DOI: 10.1007/s00425-019-03318-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
MAIN CONCLUSION Silencing of CI-sHsps by RNAi negatively affected the seed germination process and heat stress response of rice seedlings. Seed size of RNAiCI-sHsp was reduced as compared to wild-type plants. Small heat shock proteins (sHsps) are the ATP-independent chaperones ubiquitously expressed in response to diverse environmental and developmental cues. Cytosolic sHsps constitute the major repertoire of sHsp family. Rice cytosolic class I (CI)-sHsps consists of seven members (Hsp16.9A, Hsp16.9B, Hsp16.9C, Hsp17.4, Hsp17.7, Hsp17.9A and Hsp18). Purified OsHsp17.4 and OsHsp17.9A proteins exhibited chaperone activity by preventing formation of large aggregates with model substrate citrate synthase. OsHsp16.9A and OsHsp17.4 showed nucleo-cytoplasmic localization, while the localization of OsHsp17.9A was preferentially in the nucleus. Transgenic tobacco plants expressing OsHsp17.4 and OsHsp17.9A proteins and Arabidopsis plants ectopically expressing OsHsp17.4 protein showed improved thermotolerance to the respective trans-hosts during the post-stress recovery process. Single hairpin construct was designed to generate all CI-sHsp silenced (RNAiCI-sHsp) rice lines. The major vegetative and reproductive attributes of the RNAiCI-sHsp plants were comparable to the wild-type rice plants. Basal and acquired thermotolerance response of RNAiCI-sHsp seedlings of rice was mildly affected. The seed length of RNAiCI-sHsp rice plants was significantly reduced. The seed germination process was delayed and seed thermotolerance of RNAiCI-sHsp was negatively affected than the non-transgenic seeds. We, thus, implicate that sHsp genes are critical in seedling thermotolerance and seed physiology.
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Affiliation(s)
- Neelam K Sarkar
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Sachin Kotak
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Manu Agarwal
- Department of Botany, University of Delhi, Delhi, 110007, India
| | - Yeon-Ki Kim
- Department of Bioscience and Bioinformatics, Myongji University, Yongin, Gyeonggi-do, 449-728, Korea
| | - Anil Grover
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India.
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ul Haq S, Khan A, Ali M, Khattak AM, Gai WX, Zhang HX, Wei AM, Gong ZH. Heat Shock Proteins: Dynamic Biomolecules to Counter Plant Biotic and Abiotic Stresses. Int J Mol Sci 2019; 20:E5321. [PMID: 31731530 PMCID: PMC6862505 DOI: 10.3390/ijms20215321] [Citation(s) in RCA: 210] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/15/2019] [Accepted: 10/23/2019] [Indexed: 12/13/2022] Open
Abstract
Due to the present scenario of climate change, plants have to evolve strategies to survive and perform under a plethora of biotic and abiotic stresses, which restrict plant productivity. Maintenance of plant protein functional conformation and preventing non-native proteins from aggregation, which leads to metabolic disruption, are of prime importance. Plant heat shock proteins (HSPs), as chaperones, play a pivotal role in conferring biotic and abiotic stress tolerance. Moreover, HSP also enhances membrane stability and detoxifies the reactive oxygen species (ROS) by positively regulating the antioxidant enzymes system. Additionally, it uses ROS as a signal to molecules to induce HSP production. HSP also enhances plant immunity by the accumulation and stability of pathogenesis-related (PR) proteins under various biotic stresses. Thus, to unravel the entire plant defense system, the role of HSPs are discussed with a special focus on plant response to biotic and abiotic stresses, which will be helpful in the development of stress tolerance in plant crops.
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Affiliation(s)
- Saeed ul Haq
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (S.u.H.); (A.K.); (M.A.); (W.-X.G.); (H.-X.Z.)
- Department of Horticulture, University of Agriculture Peshawar, Peshawar 25130, Pakistan;
| | - Abid Khan
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (S.u.H.); (A.K.); (M.A.); (W.-X.G.); (H.-X.Z.)
| | - Muhammad Ali
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (S.u.H.); (A.K.); (M.A.); (W.-X.G.); (H.-X.Z.)
| | - Abdul Mateen Khattak
- Department of Horticulture, University of Agriculture Peshawar, Peshawar 25130, Pakistan;
- College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
| | - Wen-Xian Gai
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (S.u.H.); (A.K.); (M.A.); (W.-X.G.); (H.-X.Z.)
| | - Huai-Xia Zhang
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (S.u.H.); (A.K.); (M.A.); (W.-X.G.); (H.-X.Z.)
| | - Ai-Min Wei
- Tianjin Vegetable Research Center, Tianjin 300192, China;
| | - Zhen-Hui Gong
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (S.u.H.); (A.K.); (M.A.); (W.-X.G.); (H.-X.Z.)
- State Key Laboratory of Vegetable Germplasm Innovation, Tianjin 300384, China
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Singh D, Singh CK, Taunk J, Jadon V, Pal M, Gaikwad K. Genome wide transcriptome analysis reveals vital role of heat responsive genes in regulatory mechanisms of lentil (Lens culinaris Medikus). Sci Rep 2019; 9:12976. [PMID: 31506558 PMCID: PMC6736890 DOI: 10.1038/s41598-019-49496-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 08/23/2019] [Indexed: 01/29/2023] Open
Abstract
The present study reports the role of morphological, physiological and reproductive attributes viz. membrane stability index (MSI), osmolytes accumulations, antioxidants activities and pollen germination for heat stress tolerance in contrasting genotypes. Heat stress increased proline and glycine betaine (GPX) contents, induced superoxide dismutase (SOD), ascorbate peroxidase (APX) and glutathione peroxidase (GPX) activities and resulted in higher MSI in PDL-2 (tolerant) compared to JL-3 (sensitive). In vitro pollen germination of tolerant genotype was higher than sensitive one under heat stress. In vivo stressed pollens of tolerant genotype germinated well on stressed stigma of sensitive genotype, while stressed pollens of sensitive genotype did not germinate on stressed stigma of tolerant genotype. De novo transcriptome analysis of both the genotypes showed that number of contigs ranged from 90,267 to 104,424 for all the samples with N50 ranging from 1,755 to 1,844 bp under heat stress and control conditions. Based on assembled unigenes, 194,178 high-quality Single Nucleotide Polymorphisms (SNPs), 141,050 microsatellites and 7,388 Insertion-deletions (Indels) were detected. Expression of 10 genes was evaluated using quantitative Real Time Polymerase Chain Reaction (RT-qPCR). Comparison of differentially expressed genes (DEGs) under different combinations of heat stress has led to the identification of candidate DEGs and pathways. Changes in expression of physiological and pollen phenotyping related genes were also reaffirmed through transcriptome data. Cell wall and secondary metabolite pathways are found to be majorly affected under heat stress. The findings need further analysis to determine genetic mechanism involved in heat tolerance of lentil.
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Affiliation(s)
- Dharmendra Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Chandan Kumar Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Jyoti Taunk
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Vasudha Jadon
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Madan Pal
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Kishor Gaikwad
- ICAR-National Research Centre on Plant Biotechnology, Pusa Campus, New Delhi, 110012, India
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Song H, Cai Z, Liao J, Tang D, Zhang S. Sexually differential gene expressions in poplar roots in response to nitrogen deficiency. TREE PHYSIOLOGY 2019; 39:1614-1629. [PMID: 31115478 DOI: 10.1093/treephys/tpz057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 04/13/2019] [Accepted: 05/10/2019] [Indexed: 05/27/2023]
Abstract
Nitrogen (N) is a key nutrient impacting plant growth and physiological processes. However, the supply of N is often not sufficient to meet the requirements of trees in many terrestrial ecosystems. Because of differences in production costs, male and female plants have evolved different stress resistance strategies for N limitation. However, little is known about differential gene expression according to sex in poplars responding to N limitation. To explore sex-related constitutive defenses, Populus cathayana Rehder transcriptomic, proteomic and metabolic analyses were performed on the roots of male and female Populus cathayana. We detected 16,816 proteins and 37,286 transcripts, with 2797 overlapping proteins and mRNAs in the roots. In combination with the identification of 90 metabolites, we found that N deficiency greatly altered gene expression related to N metabolism as well as carbohydrate metabolism, secondary metabolism and stress-related processes in both sexes. Nitrogen-deficient P. cathayana females exhibited greater root biomass and less inhibition of citric acid production and glycolysis as well as higher secondary metabolic activity and abscisic acid contents than N-deficient P. cathayana males. Interestingly, males presented a better osmotic adjustment ability and higher expression of resistance genes, suggesting that P. cathayana males exhibit a better stress tolerance ability and can invest fewer resources in defense compared with females. Therefore, our study provides new molecular evidence that P. cathayana males and females adopt different resistance strategies to cope with N deficiency in their roots.
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Affiliation(s)
- Haifeng Song
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, China
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zeyu Cai
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jun Liao
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Duoteng Tang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, China
| | - Sheng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, China
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Integrated Transcriptomic, Proteomic, and Metabolomics Analysis Reveals Peel Ripening of Harvested Banana under Natural Condition. Biomolecules 2019; 9:biom9050167. [PMID: 31052343 PMCID: PMC6572190 DOI: 10.3390/biom9050167] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/22/2019] [Accepted: 04/24/2019] [Indexed: 12/28/2022] Open
Abstract
Harvested banana ripening is a complex physiological and biochemical process, and there are existing differences in the regulation of ripening between the pulp and peel. However, the underlying molecular mechanisms governing peel ripening are still not well understood. In this study, we performed a combination of transcriptomic, proteomic, and metabolomics analysis on peel during banana fruit ripening. It was found that 5784 genes, 94 proteins, and 133 metabolites were differentially expressed or accumulated in peel during banana ripening. Those genes and proteins were linked to ripening-related processes, including transcriptional regulation, hormone signaling, cell wall modification, aroma synthesis, protein modification, and energy metabolism. The differentially expressed transcriptional factors were mainly ethylene response factor (ERF) and basic helix-loop-helix (bHLH) family members. Moreover, a great number of auxin signaling-related genes were up-regulated, and exogenous 3-indoleacetic acid (IAA) treatment accelerated banana fruit ripening and up-regulated the expression of many ripening-related genes, suggesting that auxin participates in the regulation of banana peel ripening. In addition, xyloglucan endotransglucosylase/hydrolase (XTH) family members play an important role in peel softening. Both heat shock proteins (Hsps) mediated-protein modification, and ubiqutin-protesome system-mediated protein degradation was involved in peel ripening. Furthermore, anaerobic respiration might predominate in energy metabolism in peel during banana ripening. Taken together, our study highlights a better understanding of the mechanism underlying banana peel ripening and provides a new clue for further dissection of specific gene functions.
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Ganie SA, Molla KA, Henry RJ, Bhat KV, Mondal TK. Advances in understanding salt tolerance in rice. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2019; 132:851-870. [PMID: 30759266 DOI: 10.1007/s00122-019-03301-8] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/02/2019] [Indexed: 05/03/2023]
Abstract
This review presents a comprehensive overview of the recent research on rice salt tolerance in the areas of genomics, proteomics, metabolomics and chemical genomics. Salinity is one of the major constraints in rice cultivation globally. Traditionally, rice is a glycophyte except for a few genotypes that have been widely used in salinity tolerance breeding of rice. Both seedling and reproductive stages of rice are considered to be the salt-susceptible stages; however, research efforts have been biased towards improving the understanding of seedling-stage salt tolerance. An extensive literature survey indicated that there have been very few attempts to develop reproductive stage-specific salt tolerance in rice probably due to the lack of salt-tolerant phenotypes at the reproductive stage. Recently, the role of DNA methylation, genome duplication and codon usage bias in salinity tolerance of rice have been studied. Furthermore, the study of exogenous salt stress alleviants in rice has opened up another potential avenue for understanding and improving its salt tolerance. There is a need to not only generate additional genomic resources in the form of salt-responsive QTLs and molecular markers and to characterize the genes and their upstream regulatory regions, but also to use them to gain deep insights into the mechanisms useful for developing tolerant varieties. We analysed the genomic locations of diverse salt-responsive genomic resources and found that rice chromosomes 1-6 possess the majority of these salinity-responsive genomic resources. The review presents a comprehensive overview of the recent research on rice salt tolerance in the areas of genomics, proteomics, metabolomics and chemical genomics, which should help in understanding the molecular basis of salinity tolerance and its more effective improvement in rice.
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Affiliation(s)
- Showkat Ahmad Ganie
- ICAR-National Bureau of Plant Genetic Resources, IARI Campus, Pusa, New Delhi, 110012, India
| | - Kutubuddin Ali Molla
- ICAR-National Bureau of Plant Genetic Resources, IARI Campus, Pusa, New Delhi, 110012, India
| | - Robert J Henry
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - K V Bhat
- ICAR-National Bureau of Plant Genetic Resources, IARI Campus, Pusa, New Delhi, 110012, India
| | - Tapan Kumar Mondal
- ICAR-National Bureau of Plant Genetic Resources, IARI Campus, Pusa, New Delhi, 110012, India.
- ICAR-National Research Centre on Plant Biotechnology, IARI, Pusa, New Delhi, 110012, India.
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Waseem M, Rong X, Li Z. Dissecting the Role of a Basic Helix-Loop-Helix Transcription Factor, SlbHLH22, Under Salt and Drought Stresses in Transgenic Solanum lycopersicum L. FRONTIERS IN PLANT SCIENCE 2019; 10:734. [PMID: 31231412 PMCID: PMC6558761 DOI: 10.3389/fpls.2019.00734] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/16/2019] [Indexed: 05/21/2023]
Abstract
Environmental stresses, such as temperature, heavy metals, drought, cold, and microbial infections adversely damage various aspects of plant growth and development. Salinity and drought are among major hazardous factors, which adversity affects plant growth and productivity. Transcription factors, such as basic helix-loop-helix play critical roles in regulating plant physiological processes under abiotic stresses. In this study, we presented the characterization of a tomato SlbHLH22 gene under abiotic stresses such as drought and salinity. Plants overexpressing SlbHLH22 showed short height with small leaves and enhanced flavonoid accumulation. In wild type (WT) plant, the elevated levels of SlbHLH22 were detected under salt and D-mannitol stresses. Subcellular localization analysis revealed that SlbHLH22 protein was targeted to the nucleus in onion epidermal cells. Transactivation assay in yeast demonstrated that SlbHLH22 had transcriptional activation ability. The transgenic plants overexpressing SlbHLH22 displayed enhanced vigor and more tolerant to drought and salinity than WT. Overexpression of SlbHLH22 significantly peaked the activities of catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD) to minimize the impacts of reactive oxygen species such as H2O2, which was reduced significantly in transgenic plants along with Malondialdehyde (MDA). Moreover, the expression levels of ROS defense genes (SlPOD, SlCAT, SlSOD), ABA biosynthesis genes, proline biosynthesis, and flavonoids synthesis genes were also activated under salinity and drought. Taken together, our study implies that the overexpression of SlbHLH22 improved tomato plant stress resistance by improving ROS scavenging system, increasing osmotic potential and enhanced accumulation of secondary metabolites in tomato plants.
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Affiliation(s)
| | | | - Zhengguo Li
- *Correspondence: Zhengguo Li, orcid.org/0000-0002-4643-9540
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42
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He Y, Fan M, Sun Y, Li L. Genome-Wide Analysis of Watermelon HSP20s and Their Expression Profiles and Subcellular Locations under Stresses. Int J Mol Sci 2018; 20:E12. [PMID: 30577505 PMCID: PMC6337729 DOI: 10.3390/ijms20010012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/10/2018] [Accepted: 12/18/2018] [Indexed: 12/01/2022] Open
Abstract
Watermelon (Citrullus lanatus L.), which is an economically important cucurbit crop that is cultivated worldwide, is vulnerable to various adverse environmental conditions. Small heat shock protein 20s (HSP20s) are the most abundant plant HSPs and they play important roles in various biotic and abiotic stress responses. However, they have not been systematically investigated in watermelon. In this study, we identified 44 watermelon HSP20 genes and analyzed their gene structures, conserved domains, phylogenetic relationships, chromosomal distributions, and expression profiles. All of the watermelon HSP20 proteins have a conserved the α-crystallin (ACD) domain. Half of the ClHSP20s arose through gene duplication events. Plant HSP20s were grouped into 18 subfamiles and a new subfamily, nucleo-cytoplasmic XIII (CXIII), was identified in this study. Numerous stress- and hormone-responsive cis-elements were detected in the putative promoter regions of the watermelon HSP20 genes. Different from that in other species, half of the watermelon HSP20s were repressed by heat stress. Plant HSP20s displayed diverse responses to different virus infections and most of the ClHSP20s were generally repressed by Cucumber green mottle mosaic virus (CGMMV). Some ClHSP20s exhibited similar transcriptional responses to abscisic acid, melatonin, and CGMMV. Subcellular localization analyses of six selected HSP20- green fluorescence protein fusion proteins revealed diverse subcellular targeting. Some ClHSP20 proteins were affected by CGMMV, as reflected by changes in the size, number, and distribution of fluorescent granules. These systematic analyses provide a foundation for elucidating the physiological functions and biological roles of the watermelon HSP20 gene family.
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Affiliation(s)
- Yanjun He
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou 310021, China.
| | - Min Fan
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou 310021, China.
| | - Yuyan Sun
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou 310021, China.
| | - Lili Li
- Zhejiang Academy of Agricultural Sciences, Institute of Vegetables, Hangzhou 310021, China.
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Maintenance of mesophyll potassium and regulation of plasma membrane H+-ATPase are associated with physiological responses of tea plants to drought and subsequent rehydration. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.cj.2018.06.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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45
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Xiang J, Chen X, Hu W, Xiang Y, Yan M, Wang J. Overexpressing heat-shock protein OsHSP50.2 improves drought tolerance in rice. PLANT CELL REPORTS 2018; 37:1585-1595. [PMID: 30099612 DOI: 10.1007/s00299-018-2331-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 08/06/2018] [Indexed: 05/24/2023]
Abstract
OsHSP50.2, an HSP90 family gene up-regulated by heat and osmotic stress treatments, positively regulates drought stress tolerance probably by modulating ROS homeostasis and osmotic adjustment in rice. Heat-shock proteins (HSPs) serve as molecular chaperones for a variety of client proteins in abiotic stress response and play pivotal roles in protecting plants against stress, but the molecular mechanism remains largely unknown. Here, we report an HSP90 family gene, OsHSP50.2, which acts as a positive regulator in drought stress tolerance in rice (Oryza sativa). OsHSP50.2 was ubiquitously expressed and its transcript level was up-regulated by heat and osmotic stress treatments. Overexpression of OsHSP50.2 in rice reduced water loss and enhanced the transgenic plant tolerance to drought and osmotic stresses. The OsHSP50.2-overexpressing plants exhibited significantly lower levels of electrolyte leakage and malondialdehyde (MDA) and less decrease of chlorophyll than wild-type plants under drought stress. Moreover, the OsHSP50.2-overexpressing plants had significantly higher SOD activity under drought stress compared with the wild type. These results imply that OsHSP50.2 positively regulates drought stress tolerance in rice, probably through the modulation of reactive oxygen species (ROS) homeostasis. Additionally, the OsHSP50.2-overexpressing plants accumulated significantly higher content of proline than the wild type under drought stress, which contributes to the improved protection ability from drought stress damage via osmotic adjustment. Our findings reveal that OsHSP50.2 plays a crucial role in drought stress response, and it may possess high potential usefulness in drought tolerance improvement of rice.
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Affiliation(s)
- Jianhua Xiang
- Institute of Ecological Landscape Restoration, Hunan University of Science and Technology, Taoyuan Rd., Xiangtan, 411201, Hunan, China.
| | - Xinbo Chen
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Wei Hu
- Institute of Ecological Landscape Restoration, Hunan University of Science and Technology, Taoyuan Rd., Xiangtan, 411201, Hunan, China
| | - Yanci Xiang
- Institute of Ecological Landscape Restoration, Hunan University of Science and Technology, Taoyuan Rd., Xiangtan, 411201, Hunan, China
| | - Mingli Yan
- School of Life Science, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Jieming Wang
- Institute of Ecological Landscape Restoration, Hunan University of Science and Technology, Taoyuan Rd., Xiangtan, 411201, Hunan, China
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Wang J, Wang J, Lu Y, Fang Y, Gao X, Wang Z, Zheng W, Xu S. The heat responsive wheat TaRAD23 rescues developmental and thermotolerant defects of the rad23b mutant in Arabidopsis thaliana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 274:23-31. [PMID: 30080608 DOI: 10.1016/j.plantsci.2018.04.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 03/30/2018] [Accepted: 04/30/2018] [Indexed: 05/24/2023]
Abstract
High temperature severely damage the growth and development of crops with climate change. To effectively screen heat responsive proteins in wheat (Triticum aestivum L.), the isobaric tandem mass tag (TMT)-labeled quantitative proteomic analysis and quantitative real-time PCR (qRT-PCR) were performed. Here, we found that a wheat RADIATION SENSITIVE 23 protein, TaRAD23, was up-regulated at both protein and RNA levels by exposing to heat stress. Sequence homology analysis indicated that the TaRAD23 is a conserved protein, which is closely related to the Arabidopsis thaliana proteins AtRAD23B and AtRAD23A. Genetic knockout of AtRAD23B, but not AtRAD23A, shows multiple developmental defects, as well as sensitivity to heat stress. Meanwhile, we observed that constitutive overexpression of TaRAD23 in rad23b fully rescued developmental and thermotolerant defects of the mutant. Furthermore, qRT-PCR analysis of heat responsive genes in rad23b and its complementary lines suggested that suppression of the heat shock transcription factor AtHSFA2 and heat responsive genes (HSP70, HSP90, HSP17.6 and HSA32) may be the cause of the weaker thermotolerance in rad23b. Taken together, the data suggest that the heat responsive TaRAD23 is a functionally highly conserved protein that plays an important role in development, as well as the regulation in heat stress response network.
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Affiliation(s)
- Jun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China.
| | - Junzhe Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China.
| | - Yunze Lu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China.
| | - Yan Fang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, China.
| | - Xin Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China.
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China.
| | - Weijun Zheng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China.
| | - Shengbao Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China.
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Kang C, Zhai H, Xue L, Zhao N, He S, Liu Q. A lycopene β-cyclase gene, IbLCYB2, enhances carotenoid contents and abiotic stress tolerance in transgenic sweetpotato. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 272:243-254. [PMID: 29807598 DOI: 10.1016/j.plantsci.2018.05.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 05/03/2018] [Accepted: 05/07/2018] [Indexed: 05/29/2023]
Abstract
Lycopene β-cyclase (LCYB) is an essential enzyme that catalyzes the conversion of lycopene into α-carotene and β-carotene in carotenoid biosynthesis pathway. However, the roles and underlying mechanisms of the LCYB gene in plant responses to abiotic stresses are rarely known. This gene has not been used to improve carotenoid contents of sweetpotato, Ipomoea batatas (L.) Lam.. In the present study, a new allele of the LCYB gene, named IbLCYB2, was isolated from the storage roots of sweetpotato line HVB-3. Its overexpression significantly increased the contents of α-carotene, β-carotene, lutein, β-cryptoxanthin and zeaxanthin and enhanced the tolerance to salt, drought and oxidative stresses in the transgenic sweetpotato (cv. Shangshu 19) plants. The genes involved in carotenoid and abscisic acid (ABA) biosynthesis pathways and abiotic stress responses were up-regulated in the transgenic plants. The ABA and proline contents and superoxide dismutase (SOD) activity were significantly increased, whereas malonaldehyde (MDA) and H2O2 contents were significantly decreased in the transgenic plants under abiotic stresses. The overall results indicate that the IbLCYB2 gene enhances carotenoid contents and abiotic stress tolerance through positive regulation of carotenoid and ABA biosynthesis pathways in sweetpotato. This gene has the potential to improve carotenoid contents and abiotic stress tolerance in sweetpotato and other plants.
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Affiliation(s)
- Chen Kang
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China
| | - Hong Zhai
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China
| | - Luyao Xue
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China
| | - Ning Zhao
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China
| | - Shaozhen He
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Qingchang Liu
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China.
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Zhang W, Sun P, He Q, Shu F, Deng H. Transcriptome analysis of near-isogenic line provides novel insights into genes associated with panicle traits regulation in rice. PLoS One 2018; 13:e0199077. [PMID: 29924832 PMCID: PMC6010284 DOI: 10.1371/journal.pone.0199077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/31/2018] [Indexed: 11/18/2022] Open
Abstract
Panicle traits in rice impact yield and quality. The OsGRF4 gene encodes a growth-regulating factor controlling panicle traits, and was recently cloned. Gene expression profiling analysis can be used to study the molecular mechanisms underlying OsGRF4 regulation. Use of near-isogenic lines (NILs) reduces genetic background noise in omics studies. We compared transcriptome profiling of 7 cm long young panicles of NIL-Osgrf4 and NIL-OsGRF4 using RNAs sequence analyses. Eighty differentially expressed genes (DEGs) were identified. Our target gene OsGRF4 was up-regulated in NIL-OsGRF4 plants, which is consistent with a previous qPCR analysis. Hierarchical cluster analysis showed OsGRF4 is tightly clustered with the up-regulated DEG LOC_Os02g47320. Gene Ontology (GO) and KEGG analysis suggested that DEGs were primarily involved in somatic embryogenesis and chitinase activity. Two up-regulated DEGs, LOC_Os04g41680 and LOC_Os04g41620, were significantly enriched in the top 8 GO terms, and were over_represented in term of seed development, and may play key roles in grain shape regulation. The transcription factor Osmyb1 also exhibited differential expression between NILs, and may be is an important regulator of panicle traits. By searching reported functions of DEGs and by co-localization with previous identified quantitative trait loci (QTL), we determined that the pleiotropic gene OsGRF4 may also be involve in abiotic stress resistance. This study provides new candidates genes for further understanding the molecular mechanisms underlying rice panicle trait regulation.
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Affiliation(s)
- Wuhan Zhang
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, China
- Collaborative Innovation Center of Grain and Oil Crops in South China, Changsha, China
- China National Japonica Rice Research and Development Center, Tianjin, China
| | - Pingyong Sun
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Qiang He
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, China
- Collaborative Innovation Center of Grain and Oil Crops in South China, Changsha, China
| | - Fu Shu
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, China
- Collaborative Innovation Center of Grain and Oil Crops in South China, Changsha, China
| | - Huafeng Deng
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, China
- Collaborative Innovation Center of Grain and Oil Crops in South China, Changsha, China
- * E-mail:
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Locato V, Cimini S, De Gara L. ROS and redox balance as multifaceted players of cross-tolerance: epigenetic and retrograde control of gene expression. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:3373-3391. [PMID: 29722828 DOI: 10.1093/jxb/ery168] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 04/27/2018] [Indexed: 05/07/2023]
Abstract
Retrograde pathways occurring between chloroplasts, mitochondria, and the nucleus involve oxidative and antioxidative signals that, working in a synergistic or antagonistic mode, control the expression of specific patterns of genes following stress perception. Increasing evidence also underlines the relevance of mitochondrion-chloroplast-nucleus crosstalk in modulating the whole cellular redox metabolism by a controlled and integrated flux of information. Plants can maintain the acquired tolerance by a stress memory, also operating at the transgenerational level, via epigenetic and miRNA-based mechanisms controlling gene expression. Data discussed in this review strengthen the idea that ROS, redox signals, and shifts in cellular redox balance permeate the signalling network leading to cross-tolerance. The identification of specific ROS/antioxidative signatures leading a plant to different fates under stress is pivotal for identifying strategies to monitor and increase plant fitness in a changing environment. This review provides an update of the plant redox signalling network implicated in stress responses, in particular in cross-tolerance acquisition. The interplay between reactive oxygen species (ROS), ROS-derived signals, and antioxidative pathways is also discussed in terms of plant acclimation to stress in the short and long term.
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Affiliation(s)
- Vittoria Locato
- Unit of Food Science and Human Nutrition, Campus Bio-Medico University, Rome, Italy
| | - Sara Cimini
- Unit of Food Science and Human Nutrition, Campus Bio-Medico University, Rome, Italy
| | - Laura De Gara
- Unit of Food Science and Human Nutrition, Campus Bio-Medico University, Rome, Italy
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Numan M, Bashir S, Khan Y, Mumtaz R, Shinwari ZK, Khan AL, Khan A, Al-Harrasi A. Plant growth promoting bacteria as an alternative strategy for salt tolerance in plants: A review. Microbiol Res 2018; 209:21-32. [PMID: 29580619 DOI: 10.1016/j.micres.2018.02.003] [Citation(s) in RCA: 209] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/31/2018] [Accepted: 02/10/2018] [Indexed: 11/26/2022]
Abstract
Approximately 5.2 billion hectare agriculture land are affected by erosion, salinity and soil degradation. Salinity stress has significantly affecting the fertile lands, and therefore possesses a huge impact on the agriculture and economy of a country. Salt stress has severe effects on the growth and development of plants as well as reducing its yield. Plants are inherently equipped with stress tolerance ability to responds the specific type of stress. Plants retained specific mechanisms for salt stress mitigation, such as hormonal stimulation, ion exchange, antioxidant enzymes and activation of signaling cascades on their metabolic and genetic frontiers that sooth the stressed condition. Additional to the plant inherent mechanisms, certain plant growth promoting bacteria (PGPB) also have specialized mechanism that play key role for salt stress tolerance and plant growth promotion. These bacteria triggers plants to produce different plant growth hormones like auxin, cytokinine and gibberellin as well as volatile organic compounds. These bacteria also produces growth regulators like siderophore, which fix nitrogen, solubilize organic and inorganic phosphate. Considering the importance of PGPB in compensation of salt tolerance in plants, the present study has reviewed the different aspect and mechanism of bacteria that play key role in promoting plants growth and yield. It can be concluded that PGPB can be used as a cost effective and economical tool for salinity tolerance and growth promotion in plants.
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Affiliation(s)
- Muhammad Numan
- Department of Biotechnology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan; UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa, P.O. Box 33, Birkatal Al Mauz, Nizwa 616, Oman.
| | - Samina Bashir
- Department of Biotechnology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
| | - Yasmin Khan
- Department of Biotechnology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
| | - Roqayya Mumtaz
- Department of Biotechnology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
| | - Zabta Khan Shinwari
- Qarshi Research International and Vice Chancellor of Qarshi University, Lahore, Pakistan.
| | - Abdul Latif Khan
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa, P.O. Box 33, Birkatal Al Mauz, Nizwa 616, Oman
| | - Ajmal Khan
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa, P.O. Box 33, Birkatal Al Mauz, Nizwa 616, Oman.
| | - Ahmed Al-Harrasi
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa, P.O. Box 33, Birkatal Al Mauz, Nizwa 616, Oman.
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