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Lou T, Lv S, Wang J, Wang D, Lin K, Zhang X, Zhang B, Guo Z, Yi Z, Li Y. Cell size and xylem differentiation regulating genes from Salicornia europaea contribute to plant salt tolerance. PLANT, CELL & ENVIRONMENT 2024; 47:2640-2659. [PMID: 38558078 DOI: 10.1111/pce.14905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/12/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024]
Abstract
Cell wall is involved in plant growth and plays pivotal roles in plant adaptation to environmental stresses. Cell wall remodelling may be crucial to salt adaptation in the euhalophyte Salicornia europaea. However, the mechanism underlying this process is still unclear. Here, full-length transcriptome indicated cell wall-related genes were comprehensively regulated under salinity. The morphology and cell wall components in S. europaea shoot were largely modified under salinity. Through the weighted gene co-expression network analysis, SeXTH2 encoding xyloglucan endotransglucosylase/hydrolases, and two SeLACs encoding laccases were focused. Meanwhile, SeEXPB was focused according to expansin activity and the expression profiling. Function analysis in Arabidopsis validated the functions of these genes in enhancing salt tolerance. SeXTH2 and SeEXPB overexpression led to larger cells and leaves with hemicellulose and pectin content alteration. SeLAC1 and SeLAC2 overexpression led to more xylem vessels, increased secondary cell wall thickness and lignin content. Notably, SeXTH2 transgenic rice exhibited enhanced salt tolerance and higher grain yield. Altogether, these genes may function in the succulence and lignification process in S. europaea. This work throws light on the regulatory mechanism of cell wall remodelling in S. europaea under salinity and provides potential strategies for improving crop salt tolerance and yields.
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Affiliation(s)
- Tengxue Lou
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- China National Botanical Garden, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Department of In Vitro Diagnostic Reagent, National Institutes for Food and Drug Control, Beijing, China
| | - Sulian Lv
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- China National Botanical Garden, Beijing, China
| | - Jinhui Wang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Duoliya Wang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Kangqi Lin
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- China National Botanical Garden, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xuan Zhang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Bo Zhang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- China National Botanical Garden, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zijing Guo
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- China National Botanical Garden, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ze Yi
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yinxin Li
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- China National Botanical Garden, Beijing, China
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Wang L, Zhang T, Li C, Zhou C, Liu B, Wu Y, He F, Xu Y, Li F, Feng X. Overexpression of Wild Soybean Expansin Gene GsEXLB14 Enhanced the Tolerance of Transgenic Soybean Hairy Roots to Salt and Drought Stresses. PLANTS (BASEL, SWITZERLAND) 2024; 13:1656. [PMID: 38931088 PMCID: PMC11207530 DOI: 10.3390/plants13121656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/30/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024]
Abstract
As a type of cell-wall-relaxing protein that is widely present in plants, expansins have been shown to actively participate in the regulation of plant growth and responses to environmental stress. Wild soybeans have long existed in the wild environment and possess abundant resistance gene resources, which hold significant value for the improvement of cultivated soybean germplasm. In our previous study, we found that the wild soybean expansin gene GsEXLB14 is specifically transcribed in roots, and its transcription level significantly increases under salt and drought stress. To further identify the function of GsEXLB14, in this study, we cloned the CDS sequence of this gene. The transcription pattern of GsEXLB14 in the roots of wild soybean under salt and drought stress was analyzed by qRT-PCR. Using an Agrobacterium rhizogenes-mediated genetic transformation, we obtained soybean hairy roots overexpressing GsEXLB14. Under 150 mM NaCl- and 100 mM mannitol-simulated drought stress, the relative growth values of the number, length, and weight of transgenic soybean hairy roots were significantly higher than those of the control group. We obtained the transcriptomes of transgenic and wild-type soybean hairy roots under normal growth conditions and under salt and drought stress through RNA sequencing. A transcriptomic analysis showed that the transcription of genes encoding expansins (EXPB family), peroxidase, H+-transporting ATPase, and other genes was significantly upregulated in transgenic hairy roots under salt stress. Under drought stress, the transcription of expansin (EXPB/LB family) genes increased in transgenic hairy roots. In addition, the transcription of genes encoding peroxidases, calcium/calmodulin-dependent protein kinases, and dehydration-responsive proteins increased significantly. The results of qRT-PCR also confirmed that the transcription pattern of the above genes was consistent with the transcriptome. The differences in the transcript levels of the above genes may be the potential reason for the strong tolerance of soybean hairy roots overexpressing the GsEXLB14 gene under salt and drought stress. In conclusion, the expansin GsEXLB14 can be used as a valuable candidate gene for the molecular breeding of soybeans.
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Affiliation(s)
- Linlin Wang
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Tong Zhang
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Cuiting Li
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Changjun Zhou
- Daqing Branch of Heilongjiang Academy of Agricultural Sciences, Daqing 163316, China; (C.Z.); (B.L.); (Y.W.)
| | - Bing Liu
- Daqing Branch of Heilongjiang Academy of Agricultural Sciences, Daqing 163316, China; (C.Z.); (B.L.); (Y.W.)
| | - Yaokun Wu
- Daqing Branch of Heilongjiang Academy of Agricultural Sciences, Daqing 163316, China; (C.Z.); (B.L.); (Y.W.)
| | - Fumeng He
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Yongqing Xu
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Fenglan Li
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Xu Feng
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China
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Zhang J, Wang L, Wu D, Zhao H, Gong L, Xu J. Regulation of SmEXPA13 expression by SmMYB1R1-L enhances salt tolerance in Salix matsudana Koidz. Int J Biol Macromol 2024; 270:132292. [PMID: 38750858 DOI: 10.1016/j.ijbiomac.2024.132292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/23/2024] [Accepted: 05/09/2024] [Indexed: 05/18/2024]
Abstract
Expansins, cell wall proteins, play a significant role in plant stress resistance. Our previous study confirmed the expression of the expansin gene SmEXPA13 from Salix matsudana Koidz. enhanced salt tolerance of plants. This report presented an assay that the expression of SmEXPA13 was higher in the salt-resistant willow variety 9901 than in the salt-sensitive variety Yanjiang. In order to understand the possible reasons, a study of the regulation process was conducted. Despite being cloned from both varieties, SmEXPA13 and its promotor showed no significant differences in the structure and sequence. A transcription factor (TF), SmMYB1R1-L, identified through screening the yeast library of willow cDNA, was found to regulate SmEXPA13. Yeast one-hybrid (Y1H) assay confirmed that SmMYB1R1-L could bind to the MYB element at the -520 bp site on the SmEXPA13 promotor. A dual-luciferase reporter assay also demonstrated that SmMYB1R1-L could greatly activate SmEXPA13 expression. The willow calli with over-expression of SmMYB1R1-L exhibited better physiological performance than the wild type under salt stress. Further testing the expression of SmMYB1R1-L displayed it significantly higher in 9901 willow than that in Yanjiang under salt stress. In conclusion, the high accumulation of SmMYB1R1-L in 9901 willow under salt stress led to the high expression of SmEXPA13, resulting in variations in salt stress resistance among willow varieties. The SmMYB1R1-L/SmEXPA13 cascade module in willow offers a new perspective on plant resistance mechanisms.
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Affiliation(s)
- Junkang Zhang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Lei Wang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Di Wu
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Han Zhao
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Longfeng Gong
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Jichen Xu
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
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Zhang Z, Xia Z, Zhou C, Wang G, Meng X, Yin P. Insights into Salinity Tolerance in Wheat. Genes (Basel) 2024; 15:573. [PMID: 38790202 PMCID: PMC11121000 DOI: 10.3390/genes15050573] [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: 04/04/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/26/2024] Open
Abstract
Salt stress has a detrimental impact on food crop production, with its severity escalating due to both natural and man-made factors. As one of the most important food crops, wheat is susceptible to salt stress, resulting in abnormal plant growth and reduced yields; therefore, damage from salt stress should be of great concern. Additionally, the utilization of land in coastal areas warrants increased attention, given diminishing supplies of fresh water and arable land, and the escalating demand for wheat. A comprehensive understanding of the physiological and molecular changes in wheat under salt stress can offer insights into mitigating the adverse effects of salt stress on wheat. In this review, we summarized the genes and molecular mechanisms involved in ion transport, signal transduction, and enzyme and hormone regulation, in response to salt stress based on the physiological processes in wheat. Then, we surveyed the latest progress in improving the salt tolerance of wheat through breeding, exogenous applications, and microbial pathways. Breeding efficiency can be improved through a combination of gene editing and multiple omics techniques, which is the fundamental strategy for dealing with salt stress. Possible challenges and prospects in this process were also discussed.
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Affiliation(s)
| | | | | | | | | | - Pengcheng Yin
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; (Z.Z.); (Z.X.); (C.Z.); (G.W.); (X.M.)
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5
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Ma G, Zhang Y, Li X. Overexpression of OsDUF6 increases salt stress tolerance in rice. BMC PLANT BIOLOGY 2024; 24:216. [PMID: 38532340 DOI: 10.1186/s12870-024-04921-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/18/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Soil salinity is one of the primary environmental stresses faced in rice production. When plants are exposed to salt stress, a series of cellular balances will be disrupted. Dufulin is an immune-induced antiviral agent used in plants. The DUF gene family influences plant response to abiotic stress, and the functional role of OsDUF6(ABA98726.1) in rice response to salt stress is being investigated here. RESULTS Based on the transcriptome analysis of Dufulin treatment in inducing salt tolerance in rice, we selected the OsDUF6 protein located on the cell membrane and studied its molecular function by overexpressing OsDUF6. Salt-induced decreases in root, stem, and leaf length and increased leaf yellowing rate and Na+ concentration in the wild-type plant were mitigated in the overexpressed lines. OsDUF6 overexpression increased the enzymatic antioxidant activities of superoxide dismutase, peroxidase, catalase, and phenylalanine ammonia-lyase. OsDUF6 also played a positive role in Na+ transport as reflected by the increased growth of a salt-sensitive yeast mutant complemented with OsDUF6 in the presence of salt stress. In addition, Reverse transcription quantitative PCR analysis confirmed that the overexpression of OsDUF6 significantly changed the expression level of other genes related to growth and stress tolerance. CONCLUSIONS Combined with previously published data, our results supported the observation that OsDUF6 is an important functional factor in Dufulin-induced promotion of salt stress tolerance in rice.
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Affiliation(s)
- Guangming Ma
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Yong Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China.
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Zhang D, Hu Y, Li R, Tang L, Mo L, Pan Y, Mao B, Shao Y, Zhao B, Lei D. Research on Physiological Characteristics and Differential Gene Expression of Rice Hybrids and Their Parents under Salt Stress at Seedling Stage. PLANTS (BASEL, SWITZERLAND) 2024; 13:744. [PMID: 38475590 DOI: 10.3390/plants13050744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/23/2024] [Accepted: 03/05/2024] [Indexed: 03/14/2024]
Abstract
Soil salinization is one of the most important abiotic stresses which can seriously affect the growth and development of rice, leading to the decrease in or even loss of a rice harvest. Increasing the rice yield of saline soil is a key issue for agricultural production. The utilization of heterosis could significantly increase crop biomass and yield, which might be an effective way to meet the demand for rice cultivation in saline soil. In this study, to elucidate the regulatory mechanisms of rice hybrids and their parents that respond to salt stress, we investigated the phenotypic characteristics, physiological and biochemical indexes, and expression level of salt-related genes at the seedling stage. In this study, two sets of materials, encapsulating the most significant differences between the rice hybrids and their parents, were screened using the salt damage index and a hybrid superiority analysis. Compared with their parents, the rice hybrids Guang-Ba-You-Hua-Zhan (BB1) and Y-Liang-You-900 (GD1) exhibited much better salt tolerance, including an increased fresh weight and higher survival rate, a better scavenging ability towards reactive oxygen species (ROS), better ionic homeostasis with lower content of Na+ in their Na+/K+ ratio, and a higher expression of salt-stress-responsive genes. These results indicated that rice hybrids developed complex regulatory mechanisms involving multiple pathways and genes to adapt to salt stress and provided a physiological basis for the utilization of heterosis for improving the yield of rice under salt stress.
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Affiliation(s)
- Dan Zhang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China
| | - Yuanyi Hu
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China
- National Center of Technology Innovation for Salin-Alkali Tolerant Rice, Sanya 572000, China
- School of Tropical Agricultture and Forestry, Hainan University, Haikou 570228, China
| | - Ruopeng Li
- National Center of Technology Innovation for Salin-Alkali Tolerant Rice, Sanya 572000, China
- School of Tropical Agricultture and Forestry, Hainan University, Haikou 570228, China
| | - Li Tang
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China
- School of Tropical Agricultture and Forestry, Hainan University, Haikou 570228, China
| | - Lin Mo
- National Center of Technology Innovation for Salin-Alkali Tolerant Rice, Sanya 572000, China
- School of Tropical Agricultture and Forestry, Hainan University, Haikou 570228, China
| | - Yinlin Pan
- National Center of Technology Innovation for Salin-Alkali Tolerant Rice, Sanya 572000, China
| | - Bigang Mao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China
- School of Tropical Agricultture and Forestry, Hainan University, Haikou 570228, China
| | - Ye Shao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China
| | - Bingran Zhao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China
| | - Dongyang Lei
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
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Ma P, Li J, Sun G, Zhu J. Comparative transcriptome analysis reveals the adaptive mechanisms of halophyte Suaeda dendroides encountering high saline environment. FRONTIERS IN PLANT SCIENCE 2024; 15:1283912. [PMID: 38419781 PMCID: PMC10899697 DOI: 10.3389/fpls.2024.1283912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 01/30/2024] [Indexed: 03/02/2024]
Abstract
Suaeda dendroides, a succulent euhalophyte of the Chenopodiaceae family, intermittently spread around northern Xinjiang, China, has the ability to grow and develop in saline and alkali environments. The objective of this study was therefore to investigate the underlying molecular mechanisms of S. dendroides response to high salt conditions. 27 sequencing libraries prepared from low salt (200 mM NaCl) and high salt (800 mM NaCl) treated plants at 5 different stages were sequenced using Illumina Hiseq 2000. A total of 133,107 unigenes were obtained, of which 4,758 were DEGs. The number of DEGs in the high salt group (3,189) was more than the low salt treatment group (733) compared with the control. GO and KEGG analysis of the DEGs at different time points of the high salt treatment group showed that the genes related to cell wall biosynthesis and modification, plant hormone signal transduction, ion homeostasis, organic osmolyte accumulation, and reactive oxygen species (ROS) detoxification were significantly expressed, which indicated that these could be the main mechanisms of S. dendroides acclimate to high salt stress. The study provides a new perspective for understanding the molecular mechanisms of halophytes adapting to high salinity. It also provides a basis for future investigations of key salt-responsive genes in S. dendroides.
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Affiliation(s)
- Panpan Ma
- College of Life Sciences, Shihezi University, Shihezi, China
- Xinjiang Production & Construction Group Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization, Biotechnology Research Institute, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
| | - Jilian Li
- Key Laboratory of Cotton Biology and Genetic Breeding in Northwest Inland Region of the Ministry of Agriculture (Xinjiang), Institute of Cotton Research, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
| | - Guoqing Sun
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
- Western Research Institute, Chinese Academy of Agricultural Sciences, Changji, China
| | - Jianbo Zhu
- College of Life Sciences, Shihezi University, Shihezi, China
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Li Y, Li B, Pang Q, Lou Y, Wang D, Wang Z. Identification and expression analysis of expansin gene family in Salvia miltiorrhiza. Chin Med 2024; 19:22. [PMID: 38311790 PMCID: PMC10838462 DOI: 10.1186/s13020-023-00867-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/27/2023] [Indexed: 02/06/2024] Open
Abstract
BACKGROUND Expansins (EXP) are important enzymes that are involved in the extension of plant cells and regulation of root configurations, which play important roles in resisting various stresses. As a model medicinal plant, Salvia miltiorrhiza is well recognized for treating coronary heart disease, myocardial infection, and other cardiovascular and cerebrovascular diseases; however, the SmEXP gene family has not yet been analyzed. METHODS The SmEXP family was systematically analyzed using bioinformatics. Quantitative real-time PCR was employed to analyze the tissue expression patterns of the SmEXP family, as well as its expression under abscisic acid (ABA) treatment and abiotic stress. Subcellular localization assay revealed the localization of SmEXLA1, SmEXLB1, and SmEXPA2. RESULTS This study identified 29 SmEXP that belonged to four different subfamilies. SmEXP promoter analysis suggested that it may be involved in the growth, development, and stress adaptation of S. miltiorrhiza. An analysis of the expression patterns of SmEXP revealed that ABA, Cu2+, and NaCl had regulatory effects on its expression. A subcellular localization assay showed that SmEXLA1 and SmEXLB1 were located on the nucleus and cell membrane, while SmEXPA2 was located on the cell wall. CONCLUSION For this study, the SmEXP family was systematically analyzed for the first time, which lays a foundation for further elucidating its physiological and biological functionality.
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Affiliation(s)
- Yunyun Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi'an, 710062, China
| | - Bin Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi'an, 710062, China
- Xi'an Botanical Garden of Shaanxi Province (Institute of Botany of Shaanxi Province), Xi'an, China
| | - Qiyue Pang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi'an, 710062, China
| | - Yaoyu Lou
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi'an, 710062, China
| | - Donghao Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi'an, 710062, China.
| | - Zhezhi Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi'an, 710062, China.
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Modareszadeh M, Bahmani R, Kim D, Hwang S. Tobacco NtUBC1 and NtUBQ2 enhance salt tolerance by reducing sodium accumulation and oxidative stress through proteasome activation in Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108414. [PMID: 38324954 DOI: 10.1016/j.plaphy.2024.108414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/17/2024] [Accepted: 01/31/2024] [Indexed: 02/09/2024]
Abstract
The ubiquitin/proteasome system plays a crucial role in the regulation of plant responses to environmental stress. Here, we studied the involvement of the UBC1 and UBQ2 genes encoding a ubiquitin conjugating enzyme (E2) and ubiquitin extension protein, respectively, in the response to salt stress. Our results showed that the constitutive expression of tobacco NtUBC1 and NtUBQ2 in Arabidopsis thaliana improved salt tolerance, along with the lower Na+ level and higher K+/Na+ ratio compared to control plants. Moreover, the expression levels of sodium transporters, including AtHKT1 (High-Affinity K+ Transporter1) and AtSOS1 (Salt Overly Sensitive 1), were higher in NtUBC1- and NtUBQ2-Arabidopsis. However, the transcript level of AtNHX1 (Na+/H+ Exchanger 1) was similar between control and transgenic plants. After salt exposure, the activity of the 26S proteasome markedly increased in NtUBC1- and NtUBQ2-expressing plants; however, ubiquitinated protein levels decreased compared to control plants. Furthermore, higher activity of antioxidant enzymes and lower ROS production were observed in UBC1- and UBQ2-expressing plants. We further challenged atubc1, atubc2, and atubq2 single mutants and atubc1ubc2 double mutant lines with salt stress; interestingly, the salt sensitivity and sodium levels of the studied mutants were enhanced, while the potassium levels were reduced. However, the atubc1ubc2 double mutant illustrated a more severe phenotype than the single mutants, probably due to the redundant function of UBC1 and UBC2 in Arabidopsis. Taken together, NtUBC1 and NtUBQ2 enhance salt tolerance by enhancing 26S proteasome activity and reducing Na+ accumulation, ROS, and ubiquitinated/salt-denatured proteins.
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Affiliation(s)
- Mahsa Modareszadeh
- Department of Molecular Biology, Sejong University, Seoul, 143-747, Republic of Korea; Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, 143-747, Republic of Korea; Plant Engineering Research Institute, Sejong University, Seoul, 143-747, Republic of Korea
| | - Ramin Bahmani
- Department of Molecular Biology, Sejong University, Seoul, 143-747, Republic of Korea; Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, 143-747, Republic of Korea; Plant Engineering Research Institute, Sejong University, Seoul, 143-747, Republic of Korea
| | - DongGwan Kim
- Department of Molecular Biology, Sejong University, Seoul, 143-747, Republic of Korea; Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, 143-747, Republic of Korea; Plant Engineering Research Institute, Sejong University, Seoul, 143-747, Republic of Korea
| | - Seongbin Hwang
- Department of Molecular Biology, Sejong University, Seoul, 143-747, Republic of Korea; Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, 143-747, Republic of Korea; Plant Engineering Research Institute, Sejong University, Seoul, 143-747, Republic of Korea.
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Ren D, Liu H, Sun X, Zhang F, Jiang L, Wang Y, Jiang N, Yan P, Cui J, Yang J, Li Z, Lu P, Luo X. Post-transcriptional regulation of grain weight and shape by the RBP-A-J-K complex in rice. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:66-85. [PMID: 37970747 DOI: 10.1111/jipb.13583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 09/29/2023] [Accepted: 11/12/2023] [Indexed: 11/17/2023]
Abstract
RNA-binding proteins (RBPs) are components of the post-transcriptional regulatory system, but their regulatory effects on complex traits remain unknown. Using an integrated strategy involving map-based cloning, functional characterizations, and transcriptomic and population genomic analyses, we revealed that RBP-K (LOC_Os08g23120), RBP-A (LOC_Os11g41890), and RBP-J (LOC_Os10g33230) encode proteins that form an RBP-A-J-K complex that negatively regulates rice yield-related traits. Examinations of the RBP-A-J-K complex indicated RBP-K functions as a relatively non-specific RBP chaperone that enables RBP-A and RBP-J to function normally. Additionally, RBP-J most likely affects GA pathways, resulting in considerable increases in grain and panicle lengths, but decreases in grain width and thickness. In contrast, RBP-A negatively regulates the expression of genes most likely involved in auxin-regulated pathways controlling cell wall elongation and carbohydrate transport, with substantial effects on the rice grain filling process as well as grain length and weight. Evolutionarily, RBP-K is relatively ancient and highly conserved, whereas RBP-J and RBP-A are more diverse. Thus, the RBP-A-J-K complex may represent a typical functional model for many RBPs and protein complexes that function at transcriptional and post-transcriptional levels in plants and animals for increased functional consistency, efficiency, and versatility, as well as increased evolutionary potential. Our results clearly demonstrate the importance of RBP-mediated post-transcriptional regulation for the diversity of complex traits. Furthermore, rice grain yield and quality may be enhanced by introducing various complete or partial loss-of-function mutations to specific RBP genes using clustered regularly interspaced palindromic repeats (CRISPR)/CRISPR-associated protein 9 technology and by exploiting desirable natural tri-genic allelic combinations at the loci encoding the components of the RBP-A-J-K complex through marker-assisted selection.
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Affiliation(s)
- Ding Ren
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Hui Liu
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Xuejun Sun
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
- MOE Key Laboratory of Crop Physiology, Ecology and Genetic Breeding College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Fan Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100081, China
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Ling Jiang
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Ying Wang
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Ning Jiang
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Peiwen Yan
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Jinhao Cui
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Jinshui Yang
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Zhikang Li
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100081, China
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Pingli Lu
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Xiaojin Luo
- State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, 200438, China
- MOE Key Laboratory of Crop Physiology, Ecology and Genetic Breeding College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
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Kitavi M, Gemenet DC, Wood JC, Hamilton JP, Wu S, Fei Z, Khan A, Buell CR. Identification of genes associated with abiotic stress tolerance in sweetpotato using weighted gene co-expression network analysis. PLANT DIRECT 2023; 7:e532. [PMID: 37794882 PMCID: PMC10546384 DOI: 10.1002/pld3.532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 04/22/2023] [Accepted: 08/31/2023] [Indexed: 10/06/2023]
Abstract
Sweetpotato, Ipomoea batatas (L.), a key food security crop, is negatively impacted by heat, drought, and salinity stress. The orange-fleshed sweetpotato cultivar "Beauregard" was exposed to heat, salt, and drought treatments for 24 and 48 h to identify genes responding to each stress condition in leaves. Analysis revealed both common (35 up regulated, 259 down regulated genes in the three stress conditions) and unique sets of up regulated (1337 genes by drought, 516 genes by heat, and 97 genes by salt stress) and down regulated (2445 genes by drought, 678 genes by heat, and 204 genes by salt stress) differentially expressed genes (DEGs) suggesting common, yet stress-specific transcriptional responses to these three abiotic stressors. Gene Ontology analysis of down regulated DEGs common to both heat and salt stress revealed enrichment of terms associated with "cell population proliferation" suggestive of an impact on the cell cycle by the two stress conditions. To identify shared and unique gene co-expression networks under multiple abiotic stress conditions, weighted gene co-expression network analysis was performed using gene expression profiles from heat, salt, and drought stress treated 'Beauregard' leaves yielding 18 co-expression modules. One module was enriched for "response to water deprivation," "response to abscisic acid," and "nitrate transport" indicating synergetic crosstalk between nitrogen, water, and phytohormones with genes encoding osmotin, cell expansion, and cell wall modification proteins present as key hub genes in this drought-associated module. This research lays the groundwork for exploring to a further degree, mechanisms for abiotic stress tolerance in sweetpotato.
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Affiliation(s)
- Mercy Kitavi
- Research Technology Support Facility (RTSF)Michigan State UniversityEast LansingMichiganUSA
- Center for Applied Genetic TechnologiesUniversity of GeorgiaAthensGeorgiaUSA
| | - Dorcus C. Gemenet
- International Potato CenterLimaPeru
- International Maize and Wheat Improvement Center (CIMMYT), ICRAF HouseNairobiKenya
| | - Joshua C. Wood
- Center for Applied Genetic TechnologiesUniversity of GeorgiaAthensGeorgiaUSA
| | - John P. Hamilton
- Center for Applied Genetic TechnologiesUniversity of GeorgiaAthensGeorgiaUSA
- Department of Crop & Soil SciencesUniversity of GeorgiaAthensGeorgiaUSA
| | - Shan Wu
- Boyce Thompson InstituteCornell UniversityIthacaNew YorkUSA
| | - Zhangjun Fei
- Boyce Thompson InstituteCornell UniversityIthacaNew YorkUSA
| | - Awais Khan
- International Potato CenterLimaPeru
- Present address:
Plant Pathology and Plant‐Microbe Biology Section, School of Integrative Plant ScienceCornell UniversityGenevaNew YorkUSA
| | - C. Robin Buell
- Center for Applied Genetic TechnologiesUniversity of GeorgiaAthensGeorgiaUSA
- Department of Crop & Soil SciencesUniversity of GeorgiaAthensGeorgiaUSA
- Institute of Plant Breeding, Genetics, & GenomicsUniversity of GeorgiaAthensGeorgiaUSA
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12
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Tasnim A, Jahan I, Azim T, Karmoker D, Seraj ZI. Paired growth of cultivated and halophytic wild rice under salt stress induces bacterial endophytes and gene expression responses. FRONTIERS IN PLANT SCIENCE 2023; 14:1244743. [PMID: 37746015 PMCID: PMC10516563 DOI: 10.3389/fpls.2023.1244743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/17/2023] [Indexed: 09/26/2023]
Abstract
Introduction Utilizing salt-affected marginal lands in coastal regions can help meet the growing demand for rice. We explored a nature-based solution involving wild halophytic rice (O. coarctata, Oc) and commercial rice BRRI Dhan 67 (O. sativa, Os) grown in close proximity to each other under salt stress. Methods This was to investigate whether a paired planting strategy could help complement rice growth and yield under stress. We also investigated the gene expression and endophytic bacterial profiles of both Os and Oc in unpaired and paired conditions without and with salt. Results Paired plants exhibited lower salt damage indicators such as smaller reduction in plant height, electrolyte leakage and chlorophyll loss, as well as higher K+/Na+ ratio under saline stress. Some of the 39 endophytic bacteria in the mutualism experiment were unique to Oc and transferred to Os when paired. Differentially expressed genes in leaves of paired Os versus unpaired Os were 1097 (994 up-regulated, 101 down-regulated) without salt and 893 (763 up-regulated, 130 down-regulated) under salt stress. The presence of Oc plants under salt stress influenced major biological processes in Os, including oxidative stress; chitinase activity; phenylalanine catabolic process and response to ABA. Protein binding and serine/threonine kinase activity were primarily affected in molecular function. The downregulated WRKY transcription factor 22 in paired conditions under salt stress played a role in the MAPK signaling pathway, reducing respiratory cell death. The upregulated auxin-responsive protein IAA18 gene, involved in hormone signaling and cell enlargement, was present only in paired plants. Discussion Our findings therefore, offer insights into developing more effective cultivation strategies for sustainable rice production.
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Li WQ, Zheng WJ, Peng Y, Shao Y, Liu CT, Li J, Hu YY, Zhao BR, Mao BG. OsPMS1 Mutation Enhances Salt Tolerance by Suppressing ROS Accumulation, Maintaining Na +/K + Homeostasis, and Promoting ABA Biosynthesis. Genes (Basel) 2023; 14:1621. [PMID: 37628672 PMCID: PMC10454155 DOI: 10.3390/genes14081621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
World-wide, rice (Oryza sativa L.) is an important food source, and its production is often adversely affected by salinity. Therefore, to ensure stable rice yields for global food security, it is necessary to understand the salt tolerance mechanism of rice. The present study focused on the expression pattern of the rice mismatch repair gene post-meiotic segregation 1 (OsPMS1), studied the physiological properties and performed transcriptome analysis of ospms1 mutant seedlings in response to salt stress. Under normal conditions, the wild-type and ospms1 mutant seedlings showed no significant differences in growth and physiological indexes. However, after exposure to salt stress, compared with wild-type seedlings, the ospms1 mutant seedlings exhibited increased relative water content, relative chlorophyll content, superoxide dismutase (SOD) activity, K+ and abscisic acid (ABA) content, and decreased malondialdehyde (MDA) content, Na+ content, and Na+/K+ ratio, as well as decreased superoxide anion (O2-) and hydrogen peroxide (H2O2) accumulation. Gene ontology (GO) analysis of the differentially expressed genes (DEGs) of ospms1 mutant seedlings treated with 0 mM and 150 mM NaCl showed significant enrichment in biological and cytological processes, such as peroxidase activity and ribosomes. The Kyoto Encyclopedia of Genes and Genomes (KEGG) metabolic pathway analysis showed that the DEGs specifically enriched ascorbate and aldarate metabolism, flavone and flavonol biosynthesis, and glutathione metabolism pathways. Further quantitative real-time reverse transcription-PCR (qRT-PCR) analysis revealed significant changes in the transcription levels of genes related to abscisic acid signaling (OsbZIP23, OsSAPK6, OsNCED4, OsbZIP66), reactive oxygen scavenging (OsTZF1, OsDHAR1, SIT1), ion transport (OsHAK5), and osmoregulation (OsLEA3-2). Thus, the study's findings suggest that the ospms1 mutant tolerates salt stress at the seedling stage by inhibiting the accumulation of reactive oxygen species, maintaining Na+ and K+ homeostasis, and promoting ABA biosynthesis.
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Affiliation(s)
- Wang-Qing Li
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; (W.-Q.L.); (W.-J.Z.)
| | - Wen-Jie Zheng
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; (W.-Q.L.); (W.-J.Z.)
| | - Yan Peng
- National Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China; (Y.P.); (Y.-Y.H.)
| | - Ye Shao
- National Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China; (Y.P.); (Y.-Y.H.)
| | - Ci-Tao Liu
- College of Agricultural, Hunan Agricultural University, Changsha 410128, China
| | - Jin Li
- College of Tropical Crops, Hainan University, Haikou 570228, China;
| | - Yuan-Yi Hu
- National Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China; (Y.P.); (Y.-Y.H.)
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Sanya 572000, China
| | - Bing-Ran Zhao
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Sanya 572000, China
| | - Bi-Gang Mao
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; (W.-Q.L.); (W.-J.Z.)
- National Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China; (Y.P.); (Y.-Y.H.)
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Sanya 572000, China
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14
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Wu Q, Lin X, Li S, Liang Z, Wang H, Tang T. Endophytic Bacillus sp. AP10 harboured in Arabis paniculata mediates plant growth promotion and manganese detoxification. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115170. [PMID: 37354566 DOI: 10.1016/j.ecoenv.2023.115170] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 05/27/2023] [Accepted: 06/18/2023] [Indexed: 06/26/2023]
Abstract
Phytoremediation of heavy metal-polluted soils assisted by plant-associated endophytes, is a suitable method for plant growth and manganese (Mn) removal in contaminated soils. This investigation was conducted to evaluate the Mn-resistant endophytic resources of the Mn hyperaccumulator Arabis paniculata and their functions in the phytoremediation of Mn2+ toxicity. This study isolated an endophytic bacterium with high Mn resistance and indole-3-acetic acid (IAA) production form A. paniculata and identified it as Bacillus sp. AP10 using 16 S rRNA gene sequencing analysis. The effects of Bacillus sp. AP10 on the alleviation of Mn2+ toxicity in Arabidopsis thaliana seedlings and the molecular mechanisms were further investigated using biochemical tests and RNA-seq analysis. Under Mn2+ stress, Bacillus sp. AP10 increased the biomass, chlorophyll content and the translocation factor (TF) values of Mn in the aerial parts, while decreased the malondialdehyde (MDA) content of A. thaliana seedlings compared with that of control plants. The differentially expressed genes (DEGs) and enrichment analysis showed that Bacillus sp. AP10 could significantly increase the expression of key genes involved in cell-wall loosening, which may improve plant growth under Mn stress. Superoxide dismutase (SOD)-encoding genes were detected as DEGs after AP10 treatment. Moreover, AP10 regulated the expression of genes responsible for phenylpropanoid pathway, which may promote antioxidant flavonoids accumulation for reactive oxygen species (ROS) scavenging to improve Mn tolerance. The activation of ATP-binding cassette (ABC) transporter gene expression especially ABCB1 after AP10 stimulation, explained the elevation of metal ion binding or transport related to enhanced Mn accumulation in plants. Futhermore, AP10 might alleviate Mn toxicity through enhancing abscisic acid (ABA) responsive gene expression and ABA biosynthesis. These findings provide new insights into the functions and regulatory mechanism of Bacillus sp. AP10 in promoting plant growth, and tolerance, improving Mn accumulation and alleviating Mn2+ toxicity in plants. The application of Bacillus sp. AP10 as potential phytoremediators may be a promising strategy in Mn2+ contaminated fields. AVAILABILITY OF DATA AND MATERIALS: The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.
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Affiliation(s)
- Qingtao Wu
- School of Life and Health Sciences, Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal Polluted Soils, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xianjing Lin
- School of Life and Health Sciences, Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal Polluted Soils, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Shaoqing Li
- School of Life and Health Sciences, Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal Polluted Soils, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Zhenting Liang
- School of Life and Health Sciences, Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal Polluted Soils, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Haihua Wang
- School of Life and Health Sciences, Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal Polluted Soils, Hunan University of Science and Technology, Xiangtan 411201, China.
| | - Ting Tang
- School of Life and Health Sciences, Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal Polluted Soils, Hunan University of Science and Technology, Xiangtan 411201, China.
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15
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Ndecky S, Nguyen TH, Eiche E, Cognat V, Pflieger D, Pawar N, Betting F, Saha S, Champion A, Riemann M, Heitz T. Jasmonate signaling controls negative and positive effectors of salt stress tolerance in rice. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:3220-3239. [PMID: 36879437 DOI: 10.1093/jxb/erad086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 03/01/2023] [Indexed: 05/21/2023]
Abstract
Plant responses to salt exposure involve large reconfigurations of hormonal pathways that orchestrate physiological changes towards tolerance. Jasmonate (JA) hormones are essential to withstand biotic and abiotic assaults, but their roles in salt tolerance remain unclear. Here we describe the dynamics of JA metabolism and signaling in root and leaf tissue of rice, a plant species that is highly exposed and sensitive to salt. Roots activate the JA pathway in an early pulse, while the second leaf displays a biphasic JA response with peaks at 1 h and 3 d post-exposure. Based on higher salt tolerance of a rice JA-deficient mutant (aoc), we examined, through kinetic transcriptome and physiological analysis, the salt-triggered processes that are under JA control. Profound genotype-differential features emerged that could underlie the observed phenotypes. Abscisic acid (ABA) content and ABA-dependent water deprivation responses were impaired in aoc shoots. Moreover, aoc accumulated more Na+ in roots, and less in leaves, with reduced ion translocation correlating with root derepression of the HAK4 Na+ transporter gene. Distinct reactive oxygen species scavengers were also stronger in aoc leaves, along with reduced senescence and chlorophyll catabolism markers. Collectively, our results identify contrasted contributions of JA signaling to different sectors of the salt stress response in rice.
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Affiliation(s)
- Simon Ndecky
- Institut de Biologie Moléculaire des Plantes (IBMP) du CNRS, Université de Strasbourg, Strasbourg, France
| | - Trang Hieu Nguyen
- DIADE, Institut de Recherche et de Développement (IRD), Université de Montpellier, Montpellier, France
| | - Elisabeth Eiche
- Institute for Applied Geosciences, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Valérie Cognat
- Institut de Biologie Moléculaire des Plantes (IBMP) du CNRS, Université de Strasbourg, Strasbourg, France
| | - David Pflieger
- Institut de Biologie Moléculaire des Plantes (IBMP) du CNRS, Université de Strasbourg, Strasbourg, France
| | - Nitin Pawar
- Botanical Institute, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Ferdinand Betting
- Institute for Technology Assessment and Systems Analysis (ITAS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Somidh Saha
- Institute for Technology Assessment and Systems Analysis (ITAS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Antony Champion
- DIADE, Institut de Recherche et de Développement (IRD), Université de Montpellier, Montpellier, France
| | - Michael Riemann
- Botanical Institute, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Thierry Heitz
- Institut de Biologie Moléculaire des Plantes (IBMP) du CNRS, Université de Strasbourg, Strasbourg, France
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16
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Kesawat MS, Satheesh N, Kherawat BS, Kumar A, Kim HU, Chung SM, Kumar M. Regulation of Reactive Oxygen Species during Salt Stress in Plants and Their Crosstalk with Other Signaling Molecules-Current Perspectives and Future Directions. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12040864. [PMID: 36840211 PMCID: PMC9964777 DOI: 10.3390/plants12040864] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/19/2023] [Accepted: 02/06/2023] [Indexed: 05/14/2023]
Abstract
Salt stress is a severe type of environmental stress. It adversely affects agricultural production worldwide. The overproduction of reactive oxygen species (ROS) is the most frequent phenomenon during salt stress. ROS are extremely reactive and, in high amounts, noxious, leading to destructive processes and causing cellular damage. However, at lower concentrations, ROS function as secondary messengers, playing a critical role as signaling molecules, ensuring regulation of growth and adjustment to multifactorial stresses. Plants contain several enzymatic and non-enzymatic antioxidants that can detoxify ROS. The production of ROS and their scavenging are important aspects of the plant's normal response to adverse conditions. Recently, this field has attracted immense attention from plant scientists; however, ROS-induced signaling pathways during salt stress remain largely unknown. In this review, we will discuss the critical role of different antioxidants in salt stress tolerance. We also summarize the recent advances on the detrimental effects of ROS, on the antioxidant machinery scavenging ROS under salt stress, and on the crosstalk between ROS and other various signaling molecules, including nitric oxide, hydrogen sulfide, calcium, and phytohormones. Moreover, the utilization of "-omic" approaches to improve the ROS-regulating antioxidant system during the adaptation process to salt stress is also described.
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Affiliation(s)
- Mahipal Singh Kesawat
- Department of Genetics and Plant Breeding, Faculty of Agriculture, Sri Sri University, Cuttack 754006, India
| | - Neela Satheesh
- Department of Food Nutrition and Dietetics, Faculty of Agriculture, Sri Sri University, Cuttack 754006, India
| | - Bhagwat Singh Kherawat
- Krishi Vigyan Kendra, Bikaner II, Swami Keshwanand Rajasthan Agricultural University, Bikaner 334603, India
| | - Ajay Kumar
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi-221005, India
| | - Hyun-Uk Kim
- Department of Bioindustry and Bioresource Engineering, Plant Engineering Research Institute, Sejong University, Seoul 05006, Republic of Korea
| | - Sang-Min Chung
- Department of Life Science, College of Life Science and Biotechnology, Dongguk University, Goyang 10326, Republic of Korea
| | - Manu Kumar
- Department of Life Science, College of Life Science and Biotechnology, Dongguk University, Goyang 10326, Republic of Korea
- Correspondence:
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17
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Colin L, Ruhnow F, Zhu JK, Zhao C, Zhao Y, Persson S. The cell biology of primary cell walls during salt stress. THE PLANT CELL 2023; 35:201-217. [PMID: 36149287 PMCID: PMC9806596 DOI: 10.1093/plcell/koac292] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Salt stress simultaneously causes ionic toxicity, osmotic stress, and oxidative stress, which directly impact plant growth and development. Plants have developed numerous strategies to adapt to saline environments. Whereas some of these strategies have been investigated and exploited for crop improvement, much remains to be understood, including how salt stress is perceived by plants and how plants coordinate effective responses to the stress. It is, however, clear that the plant cell wall is the first contact point between external salt and the plant. In this context, significant advances in our understanding of halotropism, cell wall synthesis, and integrity surveillance, as well as salt-related cytoskeletal rearrangements, have been achieved. Indeed, molecular mechanisms underpinning some of these processes have recently been elucidated. In this review, we aim to provide insights into how plants respond and adapt to salt stress, with a special focus on primary cell wall biology in the model plant Arabidopsis thaliana.
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Affiliation(s)
- Leia Colin
- Department of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg C, Denmark
| | - Felix Ruhnow
- Department of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg C, Denmark
| | - Jian-Kang Zhu
- School of Life Sciences, Institute of Advanced Biotechnology, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chunzhao Zhao
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yang Zhao
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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18
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Fan N, Xu Q, Yang Z, Zhuang L, Yu J, Huang B. Identification of expansin genes as promoting or repressing factors for leaf elongation in tall fescue. PHYSIOLOGIA PLANTARUM 2023; 175:e13861. [PMID: 36690459 DOI: 10.1111/ppl.13861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/07/2022] [Accepted: 01/18/2023] [Indexed: 06/17/2023]
Abstract
Expansins are cell-wall loosening proteins involved in plant cell expansion and elongation. Objectives of this study were to identify expansins related to leaf elongation in a perennial grass species and determine the relationship between the expression of expansin genes and leaf elongation. A total of 20 expansin genes were identified in tall fescue (Festuca arundinacea), out of which nine genes belonged to the EXPA- and 11 to the EXPB subfamily. Two genotypes ("TF007" and "TF116") with different growth rates were used to determine the correlation between expansins and leaf growth. Among the 20 expansins, 16 were differentially expressed in the leaf growth zone in "TF007" and "TF116." The further analysis of gene expression in different leaf segments of "TF007" and "TF116" revealed that the expression level of FaEXPB16 was positively correlated with leaf elongation rate, and "TF007" had a higher leaf elongation rate than "TF116" due to the greater expression level of FaEXPB16. FaEXPA7 exhibited significantly higher expression level in leaves of the rapid-growing genotypes than the slow-growing genotypes, suggesting that FaEXPA7 acts as a positive regulator for leaf elongation. FaEXPA7 also exhibited its highest expression level in the cell division zone located in the leaf base. FaEXPB3, FaEXPB4-2, and FaEXPB11-2 showed a negative correlation with the leaf elongation rate in "TF007" and "TF116" and were highly expressed in leaves of the slow-growing genotypes. As promoting or repressing factors for leaf growth, these five expansins could be used as candidate genes in developing the rapid or slow-growing perennial grass species.
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Affiliation(s)
- Ningli Fan
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Qian Xu
- Department of Pratacultural Science, College of Agriculture, Hunan Agricultural University, Changsha, China
| | - Zhimin Yang
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Lili Zhuang
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Jingjin Yu
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Bingru Huang
- Department of Plant Biology, Rutgers University, New Brunswick, New Jersey, USA
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19
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Hsieh C, Chen YH, Chang KC, Yang SY. Transcriptome analysis reveals the mechanisms for mycorrhiza-enhanced salt tolerance in rice. FRONTIERS IN PLANT SCIENCE 2022; 13:1072171. [PMID: 36600910 PMCID: PMC9806932 DOI: 10.3389/fpls.2022.1072171] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
More than half of the global population relies on rice as a staple food, but salinization of soil presents a great threat to rice cultivation. Although previous studies have addressed the possible benefits of arbuscular mycorrhizal (AM) symbiosis for rice under salinity stress, the underlying molecular mechanisms are still unclear. In this study, we found that mycorrhizal rice had better shoot and reproductive growth and a significantly higher K+/Na+ ratio in the shoot. The reactive oxygen species (ROS) scavenging capacity in rice shoots was also improved by AM symbiosis. To elucidate the molecular mechanisms required for AM-improved salt tolerance, transcriptome analysis revealing the differentially expressed genes (DEGs) based on the response to AM symbiosis, salinity or specific tissue was performed. Thirteen percent of DEGs showed tissue-preferred responses to both AM symbiosis and salt stress and might be the key genes contributing to AM-enhanced salt tolerance. Gene Ontology (GO) enrichment analysis identified GO terms specifically appearing in this category, including cell wall, oxidoreductase activity, reproduction and ester-related terms. Interestingly, GO terms related to phosphate (Pi) homeostasis were also found, suggesting the possible role of the Pi-related signaling pathway involved in AM-enhanced salt tolerance. Intriguingly, under nonsaline conditions, AM symbiosis influenced the expression of these genes in a similar way as salinity, especially in the shoots. Overall, our results indicate that AM symbiosis may possibly use a multipronged approach to influence gene expression in a way similar to salinity, and this modification could help plants be prepared for salt stress.
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Affiliation(s)
- Chen Hsieh
- Department of Horticulture and Landscape Architecture, National Taiwan University, Taipei, Taiwan
| | - Yun-Hsin Chen
- Institute of Plant Biology, National Taiwan University, Taipei, Taiwan
| | - Kai-Chieh Chang
- Institute of Plant Biology, National Taiwan University, Taipei, Taiwan
| | - Shu-Yi Yang
- Institute of Plant Biology, National Taiwan University, Taipei, Taiwan
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20
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Rhee SJ, Jang YJ, Park JY, Ryu J, Lee GP. Virus-induced gene silencing for in planta validation of gene function in cucurbits. PLANT PHYSIOLOGY 2022; 190:2366-2379. [PMID: 35944218 PMCID: PMC9706489 DOI: 10.1093/plphys/kiac363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Virus-induced gene silencing (VIGS) is a powerful tool for high-throughput analysis of gene function. Here, we developed the VIGS vector pCF93, from which expression of the cucumber fruit mottle mosaic virus genome is driven by the cauliflower mosaic virus 35S promoter to produce viral transcripts in inoculated plants. To test the utility of the pCF93 vector, we identified candidate genes related to male sterility (MS) in watermelon (Citrullus lanatus), which is recalcitrant to genetic transformation. Specifically, we exploited previously reported reference-based and de novo transcriptome data to define 38 differentially expressed genes between a male-sterile line and its fertile near-isogenic line in the watermelon cultivar DAH. We amplified 200- to 300-bp fragments of these genes, cloned them into pCF93, and inoculated DAH with the resulting VIGS clones. The small watermelon cultivar DAH enabled high-throughput screening using a small cultivation area. We simultaneously characterized the phenotypes associated with each of the 38 candidate genes in plants grown in a greenhouse. Silencing of 8 of the 38 candidate genes produced male-sterile flowers with abnormal stamens and no pollen. We confirmed the extent of gene silencing in inoculated flowers using reverse transcription-qPCR. Histological analysis of stamens from male-fertile and male-sterile floral buds and mature flowers revealed developmental defects and shrunken pollen sacs. Based on these findings, we propose that the pCF93 vector and our VIGS system will facilitate high-throughput analysis for the study of gene function in watermelons.
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Affiliation(s)
- Sun-Ju Rhee
- Department of Plant Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Yoon Jeong Jang
- Department of Plant Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Jun-Young Park
- Department of Plant Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Jisu Ryu
- Department of Plant Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Gung Pyo Lee
- Department of Plant Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea
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21
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PsnWRKY70 Negatively Regulates NaHCO3 Tolerance in Populus. Int J Mol Sci 2022; 23:ijms232113086. [DOI: 10.3390/ijms232113086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/13/2022] [Accepted: 10/26/2022] [Indexed: 11/16/2022] Open
Abstract
Poplar is an important afforestation and ornamental tree species in Northeast China. The distribution area of saline-alkali land is approximately 765 hm2 in Northeast China. The breeding of saline-alkali-resistant transgenic trees could be an effective method of afforestation in saline-alkali land. WRKY transcription factors play a crucial role in abiotic stress. In this study, we analyzed the genetic stability of the two-year-old PsnWRKY70 transgenic poplars. The results showed that PsnWRKY70 of transgenic poplars had been expressed stably and normally at the mRNA level. The gene interference expression (RE) lines had no significant effect on the growth of PsnWRKY70 under NaHCO3 stress, and the alkali damage index of RE lines was significantly lower than that of WT and overexpression (OE) lines at day 15 under NaHCO3 stress. POD activity was significantly higher in RE lines than in WT. The MDA content of the RE line was lower than that of the WT line. Transcriptome analysis showed that RE lines up-regulated genes enriched in cell wall organization or biogenesis pathway-related genes such as EXPA8, EXPA4, EXPA3, EXPA1, EXPB3, EXP10, PME53, PME34, PME36, XTH9, XTH6, XTH23, CESA1, CESA3, CES9; FLA11, FLA16 and FLA7 genes. These genes play an important role in NaHCO3 stress. Our study showed that the interference expression of the PsnWRKY70 gene can enhance the tolerance of NaHCO3 in poplar.
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22
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The WRKY Transcription Factor OsWRKY54 Is Involved in Salt Tolerance in Rice. Int J Mol Sci 2022; 23:ijms231911999. [PMID: 36233306 PMCID: PMC9569829 DOI: 10.3390/ijms231911999] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/02/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022] Open
Abstract
Salt stress is a critical limiting factor for rice growth and production. Although numerous salt-tolerant genes have been identified, the mechanism underlying salt stress tolerance in rice remains unclear. This study reports the need for an uncharacterized WRKY transcription factor OsWRKY54 for rice salt-tolerance. Salt stress resulted in a rapid induction of OsWRKY54 expression in roots. Immunostaining analysis showed that it was mainly expressed in the stele. The loss of OsWRKY54 resulted in greater Na accumulation in shoots and enhanced sensitivity of rice plants to salt stress. The real-time quantitative PCR (qRT-PCR) and transcriptome analysis revealed that OsWRKY54 regulated the expression of some essential genes related to salt tolerance, such as OsNHX4 and OsHKT1;5. Furthermore, OsWRKY54 was found to regulate OsHKT1;5 expression by directly binding to the W-box motif in its promoter. Thus, these results indicated that OsWRKY54 was a critical regulatory factor in salt tolerance in rice.
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23
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Augstein F, Carlsbecker A. Salinity induces discontinuous protoxylem via a DELLA-dependent mechanism promoting salt tolerance in Arabidopsis seedlings. THE NEW PHYTOLOGIST 2022; 236:195-209. [PMID: 35746821 PMCID: PMC9545557 DOI: 10.1111/nph.18339] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
Salinity is detrimental to plants and developmental adjustments limiting salt uptake and transport is therefore important for acclimation to high salt. These parameters may be influenced by xylem morphology, however how plant root xylem development is affected by salt stress remains unclear. Using molecular and genetic techniques and detailed phenotypic analyses, we demonstrate that salt causes distinct effects on Arabidopsis seedling root xylem and reveal underlying molecular mechanisms. Salinity causes intermittent inhibition of protoxylem cell differentiation, generating protoxylem gaps, in Arabidopsis and several other eudicot seedlings. The extent of protoxylem gaps in seedlings positively correlates with salt tolerance. Reduced gibberellin signalling is required for protoxylem gap formation. Mutant analyses reveal that the xylem differentiation regulator VASCULAR RELATED NAC DOMAIN 6 (VND6), along with secondary cell wall producing and cell wall modifying enzymes, including EXPANSIN A1 (EXP1), are involved in protoxylem gap formation, in a DELLA-dependent manner. Salt stress is likely to reduce levels of bioactive gibberellins, stabilising DELLAs, which in turn activates multiple factors modifying protoxylem differentiation. Salt stress impacts seedling survival and formation of protoxylem gaps may be a measure to enhance salt tolerance.
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Affiliation(s)
- Frauke Augstein
- Department of Organismal Biology, Physiological Botany, and Linnean Centre for Plant BiologyUppsala UniversityUllsv. 24ESE‐756 51UppsalaSweden
| | - Annelie Carlsbecker
- Department of Organismal Biology, Physiological Botany, and Linnean Centre for Plant BiologyUppsala UniversityUllsv. 24ESE‐756 51UppsalaSweden
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24
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Li S, Chang L, Sun R, Dong J, Zhong C, Gao Y, Zhang H, Wei L, Wei Y, Zhang Y, Wang G, Sun J. Combined transcriptomic and metabolomic analysis reveals a role for adenosine triphosphate-binding cassette transporters and cell wall remodeling in response to salt stress in strawberry. FRONTIERS IN PLANT SCIENCE 2022; 13:996765. [PMID: 36147238 PMCID: PMC9486094 DOI: 10.3389/fpls.2022.996765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 07/28/2022] [Indexed: 05/25/2023]
Abstract
Strawberry (Fragaria × ananassa Duch) are sensitive to salt stress, and breeding salt-tolerant strawberry cultivars is the primary method to develop resistance to increased soil salinization. However, the underlying molecular mechanisms mediating the response of strawberry to salinity stress remain largely unknown. This study evaluated the salinity tolerance of 24 strawberry varieties, and transcriptomic and metabolomic analysis were performed of 'Sweet Charlie' (salt-tolerant) and 'Benihoppe' (salt-sensitive) to explore salt tolerance mechanisms in strawberry. Compared with the control, we identified 3412 differentially expressed genes (DEGs) and 209 differentially accumulated metabolites (DAMs) in 'Benihoppe,' and 5102 DEGs and 230 DAMs in 'Sweet Charlie.' DEGs Gene Ontology (GO) enrichment analyses indicated that the DEGs in 'Benihoppe' were enriched for ion homeostasis related terms, while in 'Sweet Charlie,' terms related to cell wall remodeling were over-represented. DEGs related to ion homeostasis and cell wall remodeling exhibited differential expression patterns in 'Benihoppe' and 'Sweet Charlie.' In 'Benihoppe,' 21 ion homeostasis-related DEGs and 32 cell wall remodeling-related DEGs were upregulated, while 23 ion homeostasis-related DEGs and 138 cell wall remodeling-related DEGs were downregulated. In 'Sweet Charlie,' 72 ion homeostasis-related DEGs and 275 cell wall remodeling-related DEGs were upregulated, while 11 ion homeostasis-related DEGs and 20 cell wall remodeling-related DEGs were downregulated. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses showed only four KEGG enriched pathways were shared between 'Benihoppe' and 'Sweet Charlie,' including flavonoid biosynthesis, phenylalanine metabolism, phenylpropanoid biosynthesis and ubiquinone, and other terpenoid-quinone biosynthesis. Integrating the results of transcriptomic and metabolomics analyses showed that adenosine triphosphate-binding cassette (ABC) transporters and flavonoid pathway genes might play important roles in the salt stress response in strawberry, and DAMs and DEGs related to ABC transporter and flavonoid pathways were differentially expressed or accumulated. The results of this study reveal that cell wall remodeling and ABC transporters contribute to the response to salt stress in strawberry, and that related genes showed differential expression patterns in varieties with different salt tolerances. These findings provide new insights into the underlying molecular mechanism of strawberry response to salt stress and suggest potential targets for the breeding of salt-tolerant strawberry varieties.
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Affiliation(s)
- Shuangtao Li
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Linlin Chang
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Rui Sun
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Jing Dong
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Chuanfei Zhong
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Yongshun Gao
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Hongli Zhang
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Lingzhi Wei
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Yongqing Wei
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Yuntao Zhang
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Guixia Wang
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
| | - Jian Sun
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Beijing Engineering Research Center for Strawberry, Beijing, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing, China
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25
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Tang Y, Wang M, Cao L, Dang Z, Ruan N, Wang Y, Huang Y, Wu J, Zhang M, Xu Z, Chen W, Li F, Xu Q. OsUGE3-mediated cell wall polysaccharides accumulation improves biomass production, mechanical strength, and salt tolerance. PLANT, CELL & ENVIRONMENT 2022; 45:2492-2507. [PMID: 35592911 DOI: 10.1111/pce.14359] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 03/07/2022] [Accepted: 04/26/2022] [Indexed: 06/15/2023]
Abstract
Cell walls constitute the majority of plant biomass and are essential for plant resistance to environmental stresses. It is promising to improve both plant biomass production and stress resistance simultaneously by genetic modification of cell walls. Here, we report the functions of a UDP-galactose/glucose epimerase 3 (OsUGE3) in rice growth and salt tolerance by characterizing its overexpressing plants (OsUGE3-OX) and loss-of-function mutants (uge3). The OsUGE3-OX plants showed improvements in biomass production and mechanical strength, whereas uge3 mutants displayed growth defects. The OsUGE3 exhibits UDP-galactose/glucose epimerase activity that provides substrates for polysaccharides polymerization, consistent with the increased biosynthesis of cellulose and hemicelluloses and strengthened walls in OsUGE3-OX plants. Notably, the OsUGE3 is ubiquitously expressed and induced by salt treatment. The uge3 mutants were hypersensitive to salt and osmotic stresses, whereas the OsUGE3-OX plants showed improved tolerance to salt and osmotic stresses. Moreover, OsUGE3 overexpression improves the homeostasis of Na+ and K+ and induces a higher accumulation of hemicelluloses and soluble sugars during salt stress. Our results suggest that OsUGE3 improves biomass production, mechanical strength, and salt stress tolerance by reinforcement of cell walls with polysaccharides and it could be targeted for genetic modification to improve rice growth under salt stress.
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Affiliation(s)
- Yijun Tang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Meihan Wang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Liyu Cao
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Zhengjun Dang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Nan Ruan
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Ye Wang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Yingni Huang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Jiayi Wu
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Mingfei Zhang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Zhengjin Xu
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Wenfu Chen
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Fengcheng Li
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Quan Xu
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
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26
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Involvement of Auxin-Mediated CqEXPA50 Contributes to Salt Tolerance in Quinoa (Chenopodium quinoa) by Interaction with Auxin Pathway Genes. Int J Mol Sci 2022; 23:ijms23158480. [PMID: 35955612 PMCID: PMC9369402 DOI: 10.3390/ijms23158480] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 11/20/2022] Open
Abstract
Soil salinization is a global problem that limits crop yields and threatens agricultural development. Auxin-induced expansins contribute to plant salt tolerance through cell wall loosening. However, how auxins and expansins contribute to the adaptation of the halophyte quinoa (Chenopodium quinoa) to salt stress has not yet been reported. Here, auxin was found to contribute to the salt tolerance of quinoa by promoting the accumulation of photosynthetic pigments under salt stress, maintaining enzymatic and nonenzymatic antioxidant systems and scavenging excess reactive oxygen species (ROS). The Chenopodium quinoa expansin (Cqexpansin) family and the auxin pathway gene family (Chenopodium quinoa auxin response factor (CqARF), Chenopodium quinoa auxin/indoleacetic acid (CqAux/IAA), Chenopodium quinoa Gretchen Hagen 3 (CqGH3) and Chenopodium quinoa small auxin upregulated RNA (CqSAUR)) were identified from the quinoa genome. Combined expression profiling identified Chenopodium quinoa α-expansin 50 (CqEXPA50) as being involved in auxin-mediated salt tolerance. CqEXPA50 enhanced salt tolerance in quinoa seedlings was revealed by transient overexpression and physiological and biochemical analyses. Furthermore, the auxin pathway and salt stress-related genes regulated by CqEXPA50 were identified. The interaction of CqEXPA50 with these proteins was demonstrated by bimolecular fluorescence complementation (BIFC). The proteins that interact with CqEXPA50 were also found to improve salt tolerance. In conclusion, this study identified some genes potentially involved in the salt tolerance regulatory network of quinoa, providing new insights into salt tolerance.
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27
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Sun Y, Song K, Guo M, Wu H, Ji X, Hou L, Liu X, Lu S. A NAC Transcription Factor from 'Sea Rice 86' Enhances Salt Tolerance by Promoting Hydrogen Sulfide Production in Rice Seedlings. Int J Mol Sci 2022; 23:ijms23126435. [PMID: 35742880 PMCID: PMC9223411 DOI: 10.3390/ijms23126435] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 02/01/2023] Open
Abstract
Soil salinity severely threatens plant growth and crop performance. Hydrogen sulfide (H2S), a plant signal molecule, has been implicated in the regulation of plant responses to salinity stress. However, it is unclear how the transcriptional network regulates H2S biosynthesis during salt stress response. In this study, we identify a rice NAC (NAM, ATAF and CUC) transcription factor, OsNAC35-like (OsNACL35), from a salt-tolerant cultivar ‘Sea Rice 86′ (SR86) and further show that it may have improved salt tolerance via enhanced H2S production. The expression of OsNACL35 was significantly upregulated by high salinity and hydrogen peroxide (H2O2). The OsNACL35 protein was localized predominantly in the nucleus and was found to have transactivation activity in yeast. The overexpression of OsNACL35 (OsNACL35-OE) in japonica cultivar Nipponbare ramatically increased resistance to salinity stress, whereas its dominant-negative constructs (SUPERMAN repression domain, SRDX) conferred hypersensitivity to salt stress in the transgenic lines at the vegetative stage. Moreover, the quantitative real-time PCR analysis showed that many stress-associated genes were differentially expressed in the OsNACL35-OE and OsNACL35-SRDX lines. Interestingly, the ectopic expression of OsNACL35 triggered a sharp increase in H2S content by upregulating the expression of a H2S biosynthetic gene, OsDCD1, upon salinity stress. Furthermore, the dual luciferase and yeast one-hybrid assays indicated that OsNACL35 directly upregulated the expression of OsDCD1 by binding to the promoter sequence of OsDCD1. Taken together, our observations illustrate that OsNACL35 acts as a positive regulator that links H2S production to salt stress tolerance, which may hold promising utility in breeding salt-tolerant rice cultivar.
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Affiliation(s)
| | | | | | | | | | | | - Xin Liu
- Correspondence: (X.L.); (S.L.); Tel.: +86-0532-58957480 (S.L.)
| | - Songchong Lu
- Correspondence: (X.L.); (S.L.); Tel.: +86-0532-58957480 (S.L.)
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28
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Feng X, Li C, He F, Xu Y, Li L, Wang X, Chen Q, Li F. Genome-Wide Identification of Expansin Genes in Wild Soybean ( Glycine soja) and Functional Characterization of Expansin B1 ( GsEXPB1) in Soybean Hair Root. Int J Mol Sci 2022; 23:5407. [PMID: 35628217 PMCID: PMC9140629 DOI: 10.3390/ijms23105407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/10/2022] [Accepted: 05/10/2022] [Indexed: 11/30/2022] Open
Abstract
Wild soybean, the progenitor and close relative of cultivated soybean, has an excellent environmental adaptation ability and abundant resistance genes. Expansins, as a class of cell wall relaxation proteins, have important functions in regulating plant growth and stress resistance. In the present study, we identified a total of 75 members of the expansin family on the basis of recent genomic data published for wild soybean. The predicted results of promoter elements structure showed that wild soybean expansin may be associated with plant hormones, stress responses, and growth. Basal transcriptome data of vegetative organs suggest that the transcription of expansin members has some organ specificity. Meanwhile, the transcripts of some members had strong responses to salt, low temperature and drought stress. We screened and obtained an expansin gene, GsEXPB1, which is transcribed specifically in roots and actively responds to salt stress. The results of A. tumefaciens transient transfection showed that this protein was localized in the cell wall of onion epidermal cells. We initially analyzed the function of GsEXPB1 by a soybean hairy root transformation assay and found that overexpression of GsEXPB1 significantly increased the number of hairy roots, root length, root weight, and the tolerance to salt stress. This research provides a foundation for subsequent studies of expansins in wild soybean.
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Affiliation(s)
- Xu Feng
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.F.); (C.L.); (F.H.); (Y.X.); (L.L.); (X.W.)
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin 150030, China
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China
| | - Cuiting Li
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.F.); (C.L.); (F.H.); (Y.X.); (L.L.); (X.W.)
| | - Fumeng He
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.F.); (C.L.); (F.H.); (Y.X.); (L.L.); (X.W.)
| | - Yongqing Xu
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.F.); (C.L.); (F.H.); (Y.X.); (L.L.); (X.W.)
| | - Li Li
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.F.); (C.L.); (F.H.); (Y.X.); (L.L.); (X.W.)
| | - Xue Wang
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.F.); (C.L.); (F.H.); (Y.X.); (L.L.); (X.W.)
| | - Qingshan Chen
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China
| | - Fenglan Li
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (X.F.); (C.L.); (F.H.); (Y.X.); (L.L.); (X.W.)
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29
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Alam MS, Kong J, Tao R, Ahmed T, Alamin M, Alotaibi SS, Abdelsalam NR, Xu JH. CRISPR/Cas9 Mediated Knockout of the OsbHLH024 Transcription Factor Improves Salt Stress Resistance in Rice ( Oryza sativa L.). PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11091184. [PMID: 35567185 PMCID: PMC9101608 DOI: 10.3390/plants11091184] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/18/2022] [Accepted: 04/25/2022] [Indexed: 05/07/2023]
Abstract
Salinity stress is one of the most prominent abiotic stresses that negatively affect crop production. Transcription factors (TFs) are involved in the absorption, transport, or compartmentation of sodium (Na+) or potassium (K+) to resist salt stress. The basic helix-loop-helix (bHLH) is a TF gene family critical for plant growth and stress responses, including salinity. Herein, we used the CRISPR/Cas9 strategy to generate the gene editing mutant to investigate the role of OsbHLH024 in rice under salt stress. The A nucleotide base deletion was identified in the osbhlh024 mutant (A91). Exposure of the A91 under salt stress resulted in a significant increase in the shoot weight, the total chlorophyll content, and the chlorophyll fluorescence. Moreover, high antioxidant activities coincided with less reactive oxygen species (ROS) and stabilized levels of MDA in the A91. This better control of oxidative stress was accompanied by fewer Na+ but more K+, and a balanced level of Ca2+, Zn2+, and Mg2+ in the shoot and root of the A91, allowing it to withstand salt stress. Furthermore, the A91 also presented a significantly up-regulated expression of the ion transporter genes (OsHKT1;3, OsHAK7, and OsSOS1) in the shoot when exposed to salt stress. These findings imply that the OsbHLH024 might play the role of a negative regulator of salt stress, which will help to understand better the molecular basis of rice production improvement under salt stress.
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Affiliation(s)
- Mohammad Shah Alam
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China; (M.S.A.); (J.K.); (R.T.); (M.A.)
| | - Jiarui Kong
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China; (M.S.A.); (J.K.); (R.T.); (M.A.)
| | - Ruofu Tao
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China; (M.S.A.); (J.K.); (R.T.); (M.A.)
| | - Temoor Ahmed
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China;
| | - Md. Alamin
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China; (M.S.A.); (J.K.); (R.T.); (M.A.)
| | - Saqer S. Alotaibi
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Nader R. Abdelsalam
- Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria 21531, Egypt;
| | - Jian-Hong Xu
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China; (M.S.A.); (J.K.); (R.T.); (M.A.)
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi 276000, China
- Correspondence:
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Sun G, Xia M, Li J, Ma W, Li Q, Xie J, Bai S, Fang S, Sun T, Feng X, Guo G, Niu Y, Hou J, Ye W, Ma J, Guo S, Wang H, Long Y, Zhang X, Zhang J, Zhou H, Li B, Liu J, Zou C, Wang H, Huang J, Galbraith DW, Song CP. The maize single-nucleus transcriptome comprehensively describes signaling networks governing movement and development of grass stomata. THE PLANT CELL 2022; 34:1890-1911. [PMID: 35166333 PMCID: PMC9048877 DOI: 10.1093/plcell/koac047] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 01/28/2022] [Indexed: 05/26/2023]
Abstract
The unique morphology of grass stomata enables rapid responses to environmental changes. Deciphering the basis for these responses is critical for improving food security. We have developed a planta platform of single-nucleus RNA-sequencing by combined fluorescence-activated nuclei flow sorting, and used it to identify cell types in mature and developing stomata from 33,098 nuclei of the maize epidermis-enriched tissues. Guard cells (GCs) and subsidiary cells (SCs) displayed differential expression of genes, besides those encoding transporters, involved in the abscisic acid, CO2, Ca2+, starch metabolism, and blue light signaling pathways, implicating coordinated signal integration in speedy stomatal responses, and of genes affecting cell wall plasticity, implying a more sophisticated relationship between GCs and SCs in stomatal development and dumbbell-shaped guard cell formation. The trajectory of stomatal development identified in young tissues, and by comparison to the bulk RNA-seq data of the MUTE defective mutant in stomatal development, confirmed known features, and shed light on key participants in stomatal development. Our study provides a valuable, comprehensive, and fundamental foundation for further insights into grass stomatal function.
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Affiliation(s)
- Guiling Sun
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Mingzhang Xia
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Jieping Li
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Wen Ma
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Qingzeng Li
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Jinjin Xie
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Shenglong Bai
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Shanshan Fang
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Ting Sun
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Xinlei Feng
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Guanghui Guo
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Yanli Niu
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Jingyi Hou
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Wenling Ye
- School of Medicine, Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, Henan University, Kaifeng 475004, China
| | - Jianchao Ma
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Siyi Guo
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Hongliang Wang
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Yu Long
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Xuebin Zhang
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Junli Zhang
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Hui Zhou
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Baozhu Li
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Jiong Liu
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Changsong Zou
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
| | - Hai Wang
- National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization, Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Jinling Huang
- School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Henan University, Kaifeng 475004, China
- Department of Biology, East Carolina University, Greenville, North Carolina 27858, USA
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Bano N, Fakhrah S, Mohanty CS, Bag SK. Transcriptome Meta-Analysis Associated Targeting Hub Genes and Pathways of Drought and Salt Stress Responses in Cotton ( Gossypium hirsutum): A Network Biology Approach. FRONTIERS IN PLANT SCIENCE 2022; 13:818472. [PMID: 35548277 PMCID: PMC9083274 DOI: 10.3389/fpls.2022.818472] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/21/2022] [Indexed: 06/12/2023]
Abstract
Abiotic stress tolerance is an intricate feature controlled through several genes and networks in the plant system. In abiotic stress, salt, and drought are well known to limit cotton productivity. Transcriptomics meta-analysis has arisen as a robust method to unravel the stress-responsive molecular network in crops. In order to understand drought and salt stress tolerance mechanisms, a meta-analysis of transcriptome studies is crucial. To confront these issues, here, we have given details of genes and networks associated with significant differential expression in response to salt and drought stress. The key regulatory hub genes of drought and salt stress conditions have notable associations with functional drought and salt stress-responsive (DSSR) genes. In the network study, nodulation signaling pathways 2 (NSP2), Dehydration-responsive element1 D (DRE1D), ethylene response factor (ERF61), cycling DOF factor 1 (CDF1), and tubby like protein 3 (TLP3) genes in drought and tubby like protein 1 (TLP1), thaumatin-like proteins (TLP), ethylene-responsive transcription factor ERF109 (EF109), ETS-Related transcription Factor (ELF4), and Arabidopsis thaliana homeodomain leucine-zipper gene (ATHB7) genes in salt showed the significant putative functions and pathways related to providing tolerance against drought and salt stress conditions along with the significant expression values. These outcomes provide potential candidate genes for further in-depth functional studies in cotton, which could be useful for the selection of an improved genotype of Gossypium hirsutum against drought and salt stress conditions.
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Affiliation(s)
- Nasreen Bano
- CSIR-National Botanical Research Institute (CSIR-NBRI), Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Shafquat Fakhrah
- CSIR-National Botanical Research Institute (CSIR-NBRI), Lucknow, India
- Department of Botany, University of Lucknow, Lucknow, India
| | - Chandra Sekhar Mohanty
- CSIR-National Botanical Research Institute (CSIR-NBRI), Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sumit Kumar Bag
- CSIR-National Botanical Research Institute (CSIR-NBRI), Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Novel QTL Associated with Aerenchyma-Mediated Radial Oxygen Loss (ROL) in Rice (Oryza sativa L.) under Iron (II) Sulfide. PLANTS 2022; 11:plants11060788. [PMID: 35336670 PMCID: PMC8948734 DOI: 10.3390/plants11060788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/03/2022] [Accepted: 03/15/2022] [Indexed: 01/04/2023]
Abstract
In rice, high radial oxygen loss (ROL) has been associated with the reduction in the activity of methanogens, therefore reducing the formation of methane (CH4) due to the abundance in application of nitrogen (N)-rich fertilizers. In this study, we evaluated the root growth behavior and ROL rate of a doubled haploid (DH) population (n = 117) and parental lines 93-11 (P1, indica) and Milyang352 (P2, japonica) in response to iron (II) sulfide (FeS). In addition, we performed a linkage mapping and quantitative trait locus (QTL) analysis on the same population for the target traits. The results of the phenotypic evaluation revealed that parental lines had distinctive root growth and ROL patterns, with 93-11 (indica) and Milyang352 (japonica) showing low and high ROL rates, respectively. This was also reflected in their derived population, indicating that 93.2% of the DH lines exhibited a high ROL rate and about 6.8% had a low ROL pattern. Furthermore, the QTL and linkage map analysis detected two QTLs associated with the control of ROL and root area on chromosomes 2 (qROL-2-1, 127 cM, logarithm of the odds (LOD) 3.04, phenotypic variation explained (PVE) 11.61%) and 8 (qRA-8-1, 97 cM, LOD 4.394, PVE 15.95%), respectively. The positive additive effect (2.532) of qROL-2-1 indicates that the allele from 93-11 contributed to the observed phenotypic variation for ROL. The breakthrough is that the qROL-2-1 harbors genes proposed to be involved in stress signaling, defense response mechanisms, and transcriptional regulation, among others. The qPCR results revealed that the majority of genes harbored by the qROL-2-1 recorded a higher transcript accumulation level in Milyang352 over time compared to 93-11. Another set of genes exhibited a high transcript abundance in P1 compared to P2, while a few were differentially regulated between both parents. Therefore, OsTCP7 and OsMYB21, OsARF8 genes encoding transcription factors (TFs), coupled with OsTRX, OsWBC8, and OsLRR2 are suggested to play important roles in the positive regulation of ROL in rice. However, the recorded differential expression of OsDEF7 and OsEXPA, and the decrease in OsNIP2, Oscb5, and OsPLIM2a TF expression between parental lines proposes them as being involved in the control of oxygen flux level in rice roots.
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Arslan B, İncili ÇY, Ulu F, Horuz E, Bayarslan AU, Öçal M, Kalyoncuoğlu E, Baloglu MC, Altunoglu YC. Comparative genomic analysis of expansin superfamily gene members in zucchini and cucumber and their expression profiles under different abiotic stresses. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:2739-2756. [PMID: 35035133 PMCID: PMC8720134 DOI: 10.1007/s12298-021-01108-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 11/17/2021] [Accepted: 11/25/2021] [Indexed: 05/25/2023]
Abstract
UNLABELLED Zucchini and cucumber belong to the Cucurbitaceae family, a group of economical and nutritious food plants that is consumed worldwide. Expansin superfamily proteins are generally localized in the cell wall of plants and are known to possess an effect on cell wall modification by causing the expansion of this region. Although the whole genome sequences of cucumber and zucchini plants have been resolved, the determination and characterization of expansin superfamily members in these plants using whole genomic data have not been implemented yet. In the current study, a genome-wide analysis of zucchini (Cucurbita pepo) and cucumber (Cucumis sativus) genomes was performed to determine the expansin superfamily genes. In total, 49 and 41 expansin genes were identified in zucchini and cucumber genomes, respectively. All expansin superfamily members were subjected to further bioinformatics analysis including gene and protein structure, ontology of the proteins, phylogenetic relations and conserved motifs, orthologous relations with other plants, targeting miRNAs of those genes and in silico gene expression profiles. In addition, various abiotic stress responses of zucchini and cucumber expansin genes were examined to determine their roles in stress tolerance. CsEXPB-04 and CsEXPA-11 from cucumber and CpEXPA-20 and CpEXPLA-14 from zucchini can be candidate genes for abiotic stress response and tolerance in addition to their roles in the normal developmental processes, which are supported by the gene expression analysis. This work can provide new perspectives for the roles of expansin superfamily genes and offers comprehensive knowledge for future studies investigating the modes of action of expansin proteins. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01108-w.
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Affiliation(s)
- Büşra Arslan
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Çınar Yiğit İncili
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Ferhat Ulu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Erdoğan Horuz
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Aslı Ugurlu Bayarslan
- Department of Biology, Faculty of Science and Arts, Kastamonu University, Kastamonu, Turkey
| | - Mustafa Öçal
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Elif Kalyoncuoğlu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Mehmet Cengiz Baloglu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Yasemin Celik Altunoglu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
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Bansal J, Gupta K, Rajkumar MS, Garg R, Jain M. Draft genome and transcriptome analyses of halophyte rice Oryza coarctata provide resources for salinity and submergence stress response factors. PHYSIOLOGIA PLANTARUM 2021; 173:1309-1322. [PMID: 33215706 DOI: 10.1111/ppl.13284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/05/2020] [Accepted: 11/17/2020] [Indexed: 05/24/2023]
Abstract
Oryza coarctata is a wild relative of rice that has adapted to diverse ecological environments, including high salinity and submergence. Thus, it can provide an important resource for discovering candidate genes/factors involved in tolerance to these stresses. Here, we report a draft genome assembly of 573 Mb comprised of 8877 scaffolds with N50 length of 205 kb. We predicted a total of 50,562 protein-coding genes, of which a significant fraction was found to be involved in secondary metabolite biosynthesis and hormone signal transduction pathways. Several salinity and submergence stress-responsive protein-coding and long noncoding RNAs involved in diverse biological processes were identified using RNA-sequencing data. Based on small RNA sequencing, we identified 168 unique miRNAs and 3219 target transcripts (coding and noncoding) involved in several biological processes, including abiotic stress responses. Further, whole genome bisulphite sequencing data analysis revealed at least 19%-48% methylcytosines in different sequence contexts and the influence of methylation status on gene expression. The genome assembly along with other datasets have been made publicly available at http://ccbb.jnu.ac.in/ory-coar. Altogether, we provide a comprehensive genomic resource for understanding the regulation of salinity and submergence stress responses and identification of candidate genes/factors involved for functional genomics studies.
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Affiliation(s)
- Juhi Bansal
- School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Khushboo Gupta
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Noida, India
| | - Mohan Singh Rajkumar
- School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Rohini Garg
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Noida, India
| | - Mukesh Jain
- School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
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The Role of Membrane Transporters in Plant Growth and Development, and Abiotic Stress Tolerance. Int J Mol Sci 2021; 22:ijms222312792. [PMID: 34884597 PMCID: PMC8657488 DOI: 10.3390/ijms222312792] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 11/16/2022] Open
Abstract
The proteins of membrane transporters (MTs) are embedded within membrane-bounded organelles and are the prime targets for improvements in the efficiency of water and nutrient transportation. Their function is to maintain cellular homeostasis by controlling ionic movements across cellular channels from roots to upper plant parts, xylem loading and remobilization of sugar molecules from photosynthesis tissues in the leaf (source) to roots, stem and seeds (sink) via phloem loading. The plant's entire source-to-sink relationship is regulated by multiple transporting proteins in a highly sophisticated manner and driven based on different stages of plant growth and development (PG&D) and environmental changes. The MTs play a pivotal role in PG&D in terms of increased plant height, branches/tiller numbers, enhanced numbers, length and filled panicles per plant, seed yield and grain quality. Dynamic climatic changes disturbed ionic balance (salt, drought and heavy metals) and sugar supply (cold and heat stress) in plants. Due to poor selectivity, some of the MTs also uptake toxic elements in roots negatively impact PG&D and are later on also exported to upper parts where they deteriorate grain quality. As an adaptive strategy, in response to salt and heavy metals, plants activate plasma membranes and vacuolar membrane-localized MTs that export toxic elements into vacuole and also translocate in the root's tips and shoot. However, in case of drought, cold and heat stresses, MTs increased water and sugar supplies to all organs. In this review, we mainly review recent literature from Arabidopsis, halophytes and major field crops such as rice, wheat, maize and oilseed rape in order to argue the global role of MTs in PG&D, and abiotic stress tolerance. We also discussed gene expression level changes and genomic variations within a species as well as within a family in response to developmental and environmental cues.
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Wu J, Yu C, Huang L, Gan Y. A rice transcription factor, OsMADS57, positively regulates high salinity tolerance in transgenic Arabidopsis thaliana and Oryza sativa plants. PHYSIOLOGIA PLANTARUM 2021; 173:1120-1135. [PMID: 34287928 DOI: 10.1111/ppl.13508] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 05/24/2023]
Abstract
MADS-box transcription factors (TFs) play indispensable roles in various aspects of plant growth, development as well as in response to environmental stresses. Several MADS-box genes have been reported to be involved in the salt tolerance in different plant species. However, the role of the transcription factor OsMADS57 under salinity stress is still unknown. Here, the results of this study showed that OsMADS57 was mainly expressed in roots and leaves of rice plants (Oryza sativa). Gene expression pattern analysis revealed that OsMADS57 was induced by NaCl. Overexpression of OsMADS57 in both Arabidopsis thaliana (A. thaliana) and rice could improve their salt tolerance, which was demonstrated by higher germination rates, longer root length and better growth status of overexpression plants than wild type (WT) under salinity conditions. In contrast, RNA interference (RNAi) lines of rice showed more sensitivity towards salinity. Moreover, less reactive oxygen species (ROS) accumulated in OsMADS57 overexpressing lines when exposed to salt stress, as measured by 3, 3'-diaminobenzidine (DAB) or nitroblue tetrazolium (NBT) staining. Further experiments exhibited that overexpression of OsMADS57 in rice significantly increased the tolerance ability of plants to oxidative damage under salt stress, mainly by increasing the activities of antioxidative enzymes such as superoxide dismutase (SOD) and peroxidase (POD), reducing malonaldehyde (MDA) content and improving the expression of stress-related genes. Taken together, these results demonstrated that OsMADS57 plays a positive role in enhancing salt tolerance by activating the antioxidant system.
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Affiliation(s)
- Junyu Wu
- Department of Agronomy, Zhejiang Key Lab of Crop Germplasm, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Chunyan Yu
- Department of Agronomy, Zhejiang Key Lab of Crop Germplasm, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- Ludong University, College of Agriculture, Yantai, China
| | - Linli Huang
- Department of Agronomy, Zhejiang Key Lab of Crop Germplasm, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Yinbo Gan
- Department of Agronomy, Zhejiang Key Lab of Crop Germplasm, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- Hainan Institute of Zhejiang University, Sanya, Hainan Province, People's Republic of China
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Kim JH, Lim SD, Jang CS. Oryza sativa, C4HC3-type really interesting new gene (RING), OsRFPv6, is a positive regulator in response to salt stress by regulating Na + absorption. PHYSIOLOGIA PLANTARUM 2021; 173:883-895. [PMID: 34142383 DOI: 10.1111/ppl.13481] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/31/2021] [Accepted: 06/14/2021] [Indexed: 05/20/2023]
Abstract
Salinity negatively affects plant growth, productivity, and metabolism. Therefore, plants have evolved diverse strategies to survive in saline environments. To identify such strategies involving the ubiquitin/26S proteasome system, we characterized molecular functions of a rice C4HC3 really interesting new gene (RING)-type E3-ubiquitin ligase gene. Oryza sativa RING finger protein v6 (OsRFPv6) was highly expressed under conditions of abiotic stress, induced by 100 mM NaCl and 20% PEG. The GFP-OsRFPv6 protein was localized in the plasma membrane and cytosol in rice protoplasts. In vitro ubiquitin assay revealed that OsRFPv6 possessed E3-ubiquitin ligase activity, but its variant OsRFPv6C100A did not. OsRFPv6-overexpressing plants were insensitive to salinity, but their growth was delayed under normal conditions. Under saline conditions, transgenic plants exhibited higher proline, soluble sugar, and chlorophyll content and lower H2 O2 accumulation than wild-type plants. Moreover, transgenic plants exhibited lower Na+ uptake, lower Na+ content, and higher K+ content in the xylem sap assay. Under saline conditions, the expression levels of nine Na+ /K+ transporter genes in roots and leaves were significantly different between transgenic and wild-type plants. Specifically, under both normal and saline conditions, the expression of OsHKT2;1, a Na+ transporter, in the roots of transgenic plants was lower than that in the roots of wild-type plants. These results suggest that OsRFPv6 E3-ubiquitin ligase serves as a positive regulator of salinity response via Na+ uptake.
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Affiliation(s)
- Jong Ho Kim
- Plant Genomics Laboratory, Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, Republic of Korea
| | - Sung Don Lim
- Molecular Plant Physiology Laboratory, Department of Plant Life and Resource Science, Sangji University, Wonju, Republic of Korea
| | - Cheol Seong Jang
- Plant Genomics Laboratory, Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, Republic of Korea
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Huang Y, Zhou J, Li Y, Quan R, Wang J, Huang R, Qin H. Salt Stress Promotes Abscisic Acid Accumulation to Affect Cell Proliferation and Expansion of Primary Roots in Rice. Int J Mol Sci 2021; 22:ijms221910892. [PMID: 34639232 PMCID: PMC8509385 DOI: 10.3390/ijms221910892] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/29/2021] [Accepted: 10/05/2021] [Indexed: 01/16/2023] Open
Abstract
The primary root is the basic component of the root system and plays a key role in early seedling growth in rice. Its growth is easily affected by environmental cues, such as salt stress. Abscisic acid (ABA) plays an essential role in root development, but the molecular mechanism underlying ABA-regulated root growth in response to salt stress remains poorly understood. In this study, we report that salt stress inhibits primary root elongation and promotes primary root swelling. Moreover, salt stress induces the expression of ABA-responsive genes and ABA accumulation in the primary root, revealing that ABA plays an essential role in salt-modulated root growth. Transgenic lines of OsSAPK10-OE and OsABIL2-OE, which constitutively express OsSAPK10 or OsABIL2, with enhanced or attenuated ABA signaling, show increased and decreased sensitivity to salt, correspondingly. Microscopic analysis indicates that salt and ABA inhibits cell proliferation and promotes cell expansion in the root apical meristem. Transcriptome analysis showed that ABA induces the expression of EXPANSIN genes. Further investigations indicate that ABA exerts these effects largely through ABA signaling. Thus, our findings deepen our understanding of the role of ABA in controlling primary root growth in response to salt stress, and this knowledge can be used by breeders to cultivate rice varieties suitable for saline–alkali land.
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Affiliation(s)
- Yingying Huang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.H.); (J.Z.); (Y.L.); (R.Q.); (J.W.); (R.H.)
| | - Jiahao Zhou
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.H.); (J.Z.); (Y.L.); (R.Q.); (J.W.); (R.H.)
| | - Yuxiang Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.H.); (J.Z.); (Y.L.); (R.Q.); (J.W.); (R.H.)
| | - Ruidang Quan
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.H.); (J.Z.); (Y.L.); (R.Q.); (J.W.); (R.H.)
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China
| | - Juan Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.H.); (J.Z.); (Y.L.); (R.Q.); (J.W.); (R.H.)
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China
| | - Rongfeng Huang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.H.); (J.Z.); (Y.L.); (R.Q.); (J.W.); (R.H.)
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China
| | - Hua Qin
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.H.); (J.Z.); (Y.L.); (R.Q.); (J.W.); (R.H.)
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China
- Correspondence:
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Schaarschmidt S, Glaubitz U, Erban A, Kopka J, Zuther E. Differentiation of the High Night Temperature Response in Leaf Segments of Rice Cultivars with Contrasting Tolerance. Int J Mol Sci 2021; 22:ijms221910451. [PMID: 34638787 PMCID: PMC8508630 DOI: 10.3390/ijms221910451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 11/16/2022] Open
Abstract
High night temperatures (HNT) affect rice yield in the field and induce chlorosis symptoms in leaves in controlled chamber experiments. However, little is known about molecular changes in leaf segments under these conditions. Transcript and metabolite profiling were performed for leaf segments of six rice cultivars with different HNT sensitivity. The metabolite profile of the sheath revealed a lower metabolite abundance compared to segments of the leaf blade. Furthermore, pre-adaptation to stress under control conditions was detected in the sheath, whereas this segment was only slightly affected by HNT. No unique significant transcriptomic changes were observed in the leaf base, including the basal growth zone at HNT conditions. Instead, selected metabolites showed correlations with HNT sensitivity in the base. The middle part and the tip were most highly affected by HNT in sensitive cultivars on the transcriptomic level with higher expression of jasmonic acid signaling related genes, genes encoding enzymes involved in flavonoid metabolism and a gene encoding galactinol synthase. In addition, gene expression of expansins known to improve stress tolerance increased in tolerant and sensitive cultivars. The investigation of the different leaf segments indicated highly segment specific responses to HNT. Molecular key players for HNT sensitivity were identified.
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Saini S, Kaur N, Marothia D, Singh B, Singh V, Gantet P, Pati PK. Morphological Analysis, Protein Profiling and Expression Analysis of Auxin Homeostasis Genes of Roots of Two Contrasting Cultivars of Rice Provide Inputs on Mechanisms Involved in Rice Adaptation towards Salinity Stress. PLANTS 2021; 10:plants10081544. [PMID: 34451587 PMCID: PMC8399380 DOI: 10.3390/plants10081544] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/02/2021] [Accepted: 07/24/2021] [Indexed: 11/26/2022]
Abstract
Plants remodel their root architecture in response to a salinity stress stimulus. This process is regulated by an array of factors including phytohormones, particularly auxin. In the present study, in order to better understand the mechanisms involved in salinity stress adaptation in rice, we compared two contrasting rice cultivars—Luna Suvarna, a salt tolerant, and IR64, a salt sensitive cultivar. Phenotypic investigations suggested that Luna Suvarna in comparison with IR64 presented stress adaptive root traits which correlated with a higher accumulation of auxin in its roots. The expression level investigation of auxin signaling pathway genes revealed an increase in several auxin homeostasis genes transcript levels in Luna Suvarna compared with IR64 under salinity stress. Furthermore, protein profiling showed 18 proteins that were differentially regulated between the roots of two cultivars, and some of them were salinity stress responsive proteins found exclusively in the proteome of Luna Suvarna roots, revealing the critical role of these proteins in imparting salinity stress tolerance. This included proteins related to the salt overly sensitive pathway, root growth, the reactive oxygen species scavenging system, and abscisic acid activation. Taken together, our results highlight that Luna Suvarna involves a combination of morphological and molecular traits of the root system that could prime the plant to better tolerate salinity stress.
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Affiliation(s)
- Shivani Saini
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India; (S.S.); (N.K.); (D.M.); (B.S.); (V.S.)
| | - Navdeep Kaur
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India; (S.S.); (N.K.); (D.M.); (B.S.); (V.S.)
| | - Deeksha Marothia
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India; (S.S.); (N.K.); (D.M.); (B.S.); (V.S.)
| | - Baldev Singh
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India; (S.S.); (N.K.); (D.M.); (B.S.); (V.S.)
| | - Varinder Singh
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India; (S.S.); (N.K.); (D.M.); (B.S.); (V.S.)
| | - Pascal Gantet
- Université de Montpellier, UMR DIADE, Centre de Recherche de l’IRD, Avenue Agropolis, BP 64501, CEDEX 5, 34394 Montpellier, France
- Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Molecular Biology, Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Correspondence: (P.G.); (P.K.P.)
| | - Pratap Kumar Pati
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India; (S.S.); (N.K.); (D.M.); (B.S.); (V.S.)
- Correspondence: (P.G.); (P.K.P.)
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Leschevin M, Ismael M, Quero A, San Clemente H, Roulard R, Bassard S, Marcelo P, Pageau K, Jamet E, Rayon C. Physiological and Biochemical Traits of Two Major Arabidopsis Accessions, Col-0 and Ws, Under Salinity. FRONTIERS IN PLANT SCIENCE 2021; 12:639154. [PMID: 34234793 PMCID: PMC8256802 DOI: 10.3389/fpls.2021.639154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/20/2021] [Indexed: 06/01/2023]
Abstract
Salinity affects plant growth and development as shown with the glycophyte model plant, Arabidopsis thaliana (Arabidopsis). Two Arabidopsis accessions, Wassilewskija (Ws) and Columbia (Col-0), are widely used to generate mutants available from various Arabidopsis seed resources. However, these two ecotypes are known to be salt-sensitive with different degrees of tolerance. In our study, 3-week-old Col-0 and Ws plants were treated with and without 150 mM NaCl for 48, 72, or 96 h, and several physiological and biochemical traits were characterized on shoots to identify any specific traits in their tolerance to salinity. Before salt treatment was carried out, a different phenotype was observed between Col-0 and Ws, whose main inflorescence stem became elongated in contrast to Col-0, which only displayed rosette leaves. Our results showed that Col-0 and Ws were both affected by salt stress with limited growth associated with a reduction in nutrient uptake, a degradation of photosynthetic pigments, an increase in protein degradation, as well as showing changes in carbohydrate metabolism and cell wall composition. These traits were often more pronounced in Col-0 and occurred usually earlier than in Ws. Tandem Mass Tags quantitative proteomics data correlated well with the physiological and biochemical results. The Col-0 response to salt stress was specifically characterized by a greater accumulation of osmoprotectants such as anthocyanin, galactinol, and raffinose; a lower reactive oxygen detoxification capacity; and a transient reduction in galacturonic acid content. Pectin degradation was associated with an overaccumulation of the wall-associated kinase 1, WAK1, which plays a role in cell wall integrity (CWI) upon salt stress exposure. Under control conditions, Ws produced more antioxidant enzymes than Col-0. Fewer specific changes occurred in Ws in response to salt stress apart from a higher number of different fascilin-like arabinogalactan proteins and a greater abundance of expansin-like proteins, which could participate in CWI. Altogether, these data indicate that Col-0 and Ws trigger similar mechanisms to cope with salt stress, and specific changes are more likely related to the developmental stage than to their respective genetic background.
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Affiliation(s)
- Maïté Leschevin
- UMR INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | - Marwa Ismael
- UMR INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | - Anthony Quero
- UMR INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | | | - Romain Roulard
- UMR INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | - Solène Bassard
- UMR INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | - Paulo Marcelo
- Plateforme d’Ingénierie Cellulaire & Analyses des Protéines ICAP Université de Picardie Jules Verne, Amiens, France
| | - Karine Pageau
- UMR INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | - Elisabeth Jamet
- LRSV, Université de Toulouse, CNRS, UPS, Auzeville-Tolosane, France
| | - Catherine Rayon
- UMR INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
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Jiang W, Pan R, Buitrago S, Wu C, Abou-Elwafa SF, Xu Y, Zhang W. Conservation and divergence of the TaSOS1 gene family in salt stress response in wheat ( Triticum aestivum L.). PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:1245-1260. [PMID: 34177146 PMCID: PMC8212347 DOI: 10.1007/s12298-021-01009-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 05/09/2021] [Accepted: 05/18/2021] [Indexed: 05/09/2023]
Abstract
UNLABELLED Salinity is one of the most important problems that adversely affect crops growth, productivity and quality worldwide. Salt Overly Sensitive 1 (SOS1) gene family plays vital roles in plant response to salt stress. Herein, we report the identification of the SOS family in wheat and the exploration of the expression profiles of SOSs under salt stress. Complete genome sequences of T. aestivum were downloaded from Ensembl plant database. Conservation and divergence of TaSOS1 family were conducted by using phylogenetic tree, gene structure and synteny distribution analysis. Expression profiles of TaSOS1s were obtained based on transcriptome and qRT-PCR analysis. Totally, 119 TaSOS1 proteins in wheat were identified at the genome-wide level and classified into three groups. Six motifs were conserved in TaSOS1 gene family. Moreover, 25 TaSOS1 genes had three copies distributing in three sub-genomes (A, B and D). A total of 32, 28 and 29 TaSOS1 genes were located on the sub-genomes A, B and D, respectively. Moreover, there were 19, 12, 6, 7, 28, 5 and 12 genes located on the three homologous of chromosomes 1, 2, 3, 4, 5, 6 and 7, respectively. Two genes were mapped to unattributed scaffolds. The duplication events analysis indicated that tandem repeats contributed to the expansion of the SOS1 family in wheat. Collinearity analysis demonstrated that segmental duplications play an important role in the expansion of SOS1 members. Chromosome 7, 5, 3, and 2 showed collinear relationship. Tissue specific expression pattern analysis revealed that 41 TaSOS1 genes expressed in various tissues, such as root, shoot, leaf, spike and grain. Transcriptomic analysis revealed that 28 and 26 genes were up- and down-regulated under salinity stress, respectively, of which 18 genes were further confirmed by RT-qPCR. The plants with high expression level of these genes displayed higher tolerance to salinity stress, stronger root system, higher Fv/Fm value and water potential. The results could be helpful for further elucidating the molecular mechanism of TaSOS1 related to salt tolerance in wheat and provide a toolkit for improving the salinity tolerance of wheat. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01009-y.
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Affiliation(s)
- Wei Jiang
- Hubei Collaborative Innovation Center for Grain Industry/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025 China
| | - Rui Pan
- Hubei Collaborative Innovation Center for Grain Industry/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025 China
| | - Sebastian Buitrago
- Hubei Collaborative Innovation Center for Grain Industry/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025 China
| | - Chu Wu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025 China
| | | | - Yanhao Xu
- Hubei Collaborative Innovation Center for Grain Industry/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025 China
| | - Wenying Zhang
- Hubei Collaborative Innovation Center for Grain Industry/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025 China
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Shahzad R, Ewas M, Harlina PW, Khan SU, Zhenyuan P, Nie X, Nishawy E. β-Sitosterol differentially regulates key metabolites for growth improvement and stress tolerance in rice plants during prolonged UV-B stress. J Genet Eng Biotechnol 2021; 19:79. [PMID: 34052903 PMCID: PMC8164654 DOI: 10.1186/s43141-021-00183-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/17/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND Elevated ultraviolet-B (UV-B) radiation is potentially deleterious to many organisms specifically crop plants and has become a global challenge. Rice is an exceptionally important staple food which is grown worldwide, and many efforts have been done recently to improve rice varieties against UV-B stress. This current study aims to investigate the effects of exogenous application of β-sitosterol (βSito) on growth improvement and tolerance level of rice plants against prolonged UV-B stress. The physiological and metabolic responses were evaluated in rice plants not supplemented with βSito (Nβ) and those supplemented with βSito (Sβ). RESULTS The Nβ and Sβ plants were grown under non-stress (ns) and under prolonged UV-B stress (uvs) conditions and termed as Nβns, Sβns and Nβuvs, Sβuvs, respectively. The application of βSito contributes positively under non-stress and specifically to UV-B stress in terms of improving numerous physiological parameters associated with growth and development such as shoot and root length, RWC, whole plant biomass, chlorophyll pigments, and photosynthetic-related parameters (Pn, Gs, Tr, WUEi, Fv/Fm, and NPQ) in Sβ compared with Nβ plants. Moreover, enhanced oxidative stress tolerance of Sβuvs vs. Nβuvs plants under stress was attributed to low levels of ROS and substantial trigger in activities of antioxidant enzymes (SOD, POD, CAT, and APX). Metabolic analysis was performed using GC-TOFMS, which revealed higher accumulation of several key metabolites including organic acids, sugars, amino acids, and others in Sβuvs vs. Nβuvs plants, which were mainly reduced in Nβ plants under stress vs. non-stress conditions. CONCLUSION These results provide useful data regarding the important role of βSito on growth maintenance and modulation of several metabolites associated with osmotic and redox adjustments during UV-B stress tolerance in rice plants. Importantly, βSito-regulated plasticity could further be explored specifically in relation to different environmental stresses in other economically useful crop plants.
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Affiliation(s)
- Raheel Shahzad
- Department of Biotechnology, Faculty of Science and Technology, Universitas Muhammadiyah Bandung, Bandung, West Java, 40614, Indonesia. .,National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Mohamed Ewas
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China. .,Department of Plant Genetic Resources, Desert Research Center, Cairo, 11753, Egypt.
| | - Putri Widyanti Harlina
- Department of Food Technology, Faculty of Science and Technology, Universitas Muhammadiyah Bandung, Bandung, West Java, 40614, Indonesia
| | - Shahid Ullah Khan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Pan Zhenyuan
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Bingtuan, Agricultural College, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Xinhui Nie
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Bingtuan, Agricultural College, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Elsayed Nishawy
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China.,Department of Plant Genetic Resources, Desert Research Center, Cairo, 11753, Egypt
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Wang Q, Yan N, Chen H, Li S, Hu H, Lin Y, Shi H, Zhou K, Jiang X, Yu S, Li C, Chen G, Yang Z, Liu Y. Genome-Wide Association Study of Kernel Traits in Aegilops tauschii. Front Genet 2021; 12:651785. [PMID: 34122506 PMCID: PMC8194309 DOI: 10.3389/fgene.2021.651785] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/04/2021] [Indexed: 11/13/2022] Open
Abstract
Aegilops tauschii is the diploid progenitor of the D subgenome of hexaploid wheat (Triticum aestivum L.). Here, the phenotypic data of kernel length (KL), kernel width (KW), kernel volume (KV), kernel surface area (KSA), kernel width to length ratio (KWL), and hundred-kernel weight (HKW) for 223 A. tauschii accessions were gathered across three continuous years. Based on population structure analysis, 223 A. tauschii were divided into two subpopulations, namely T-group (mainly included A. tauschii ssp. tauschii accessions) and S-group (mainly included A. tauschii ssp. strangulata). Classifications based on cluster analysis were highly consistent with the population structure results. Meanwhile, the extent of linkage disequilibrium decay distance (r2 = 0.5) was about 110 kb and 290 kb for T-group and S-group, respectively. Furthermore, a genome-wide association analysis was performed on these kernel traits using 6,723 single nucleotide polymorphism (SNP) markers. Sixty-six significant markers, distributed on all seven chromosomes, were identified using a mixed linear model explaining 4.82–13.36% of the phenotypic variations. Among them, 15, 28, 22, 14, 21, and 13 SNPs were identified for KL, KW, KV, KSA, KWL, and HKW, respectively. Moreover, six candidate genes that may control kernel traits were identified (AET2Gv20774800, AET4Gv20799000, AET5Gv20005900, AET5Gv20084100, AET7Gv20644900, and AET5Gv21111700). The transfer of beneficial genes from A. tauschii to wheat using marker-assisted selection will broaden the wheat D subgenome improve the efficiency of breeding.
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Affiliation(s)
- Qing Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Ning Yan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Hao Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Sirui Li
- Chengdu Foreign Language School, Chengdu, China
| | - Haiyan Hu
- School of Life Sciences and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Yu Lin
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Haoran Shi
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Kunyu Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Xiaojun Jiang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Shifan Yu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Caixia Li
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Guangdeng Chen
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Zisong Yang
- College of Resources and Environment, Aba Teachers University, Wenchuan, China
| | - Yaxi Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China.,Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
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Ganie SA, Wani SH, Henry R, Hensel G. Improving rice salt tolerance by precision breeding in a new era. CURRENT OPINION IN PLANT BIOLOGY 2021; 60:101996. [PMID: 33444976 DOI: 10.1016/j.pbi.2020.101996] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/16/2020] [Accepted: 12/19/2020] [Indexed: 05/03/2023]
Abstract
Rice is a premier staple food that constitutes the bulk of the daily diet of the majority of people in Asia. Agricultural productivity must be boosted to support this huge demand for rice. However, production is jeopardized by soil salinity. Advances in whole-genome sequencing, marker-assisted breeding strategies, and targeted mutagenesis have substantially improved the toolbox of today's breeders. Given that salinity has a major influence on rice at both the seedling and reproductive stages, understanding and manipulating this trait will have an enormous impact on sustainable production. This article summarizes recent developments in the understanding of the mechanisms of salt tolerance and how state-of-the-art tools such as RNA guided CRISPR endonuclease technology including targeted mutagenesis or base and prime editing can help in gene discovery and functional analysis as well as in transferring favorable alleles into elite breeding material to speed the breeding of salt-tolerant rice cultivars.
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Affiliation(s)
- Showkat Ahmad Ganie
- Department of Biotechnology, Visva-Bharati, Santiniketan 731235, West Bengal, India.
| | - Shabir Hussain Wani
- Mountain Research Centre for Field Crops, Khudwani - 192101, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir, J&K, India
| | - Robert Henry
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Goetz Hensel
- Centre for Plant Genome Engineering, Institute of Plant Biochemistry, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany; Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstraße 3, OT Gatersleben, 06466 Seeland, Germany; Division of Molecular Biology, Centre of Region Haná for Biotechnological and Agriculture Research, Czech Advanced Technology and Research Institute, Palacký University, Olomouc, Czech Republic.
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46
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Liu J, Zhang W, Long S, Zhao C. Maintenance of Cell Wall Integrity under High Salinity. Int J Mol Sci 2021; 22:3260. [PMID: 33806816 PMCID: PMC8004791 DOI: 10.3390/ijms22063260] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022] Open
Abstract
Cell wall biosynthesis is a complex biological process in plants. In the rapidly growing cells or in the plants that encounter a variety of environmental stresses, the compositions and the structure of cell wall can be dynamically changed. To constantly monitor cell wall status, plants have evolved cell wall integrity (CWI) maintenance system, which allows rapid cell growth and improved adaptation of plants to adverse environmental conditions without the perturbation of cell wall organization. Salt stress is one of the abiotic stresses that can severely disrupt CWI, and studies have shown that the ability of plants to sense and maintain CWI is important for salt tolerance. In this review, we highlight the roles of CWI in salt tolerance and the mechanisms underlying the maintenance of CWI under salt stress. The unsolved questions regarding the association between the CWI and salt tolerance are discussed.
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Affiliation(s)
- Jianwei Liu
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China; (J.L.); (W.Z.); (S.L.)
| | - Wei Zhang
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China; (J.L.); (W.Z.); (S.L.)
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Shujie Long
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China; (J.L.); (W.Z.); (S.L.)
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Chunzhao Zhao
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China; (J.L.); (W.Z.); (S.L.)
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Advances and Challenges in the Breeding of Salt-Tolerant Rice. Int J Mol Sci 2020; 21:ijms21218385. [PMID: 33182265 PMCID: PMC7664944 DOI: 10.3390/ijms21218385] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 12/16/2022] Open
Abstract
Soil salinization and a degraded ecological environment are challenging agricultural productivity and food security. Rice (Oryza sativa), the staple food of much of the world’s population, is categorized as a salt-susceptible crop. Improving the salt tolerance of rice would increase the potential of saline-alkali land and ensure food security. Salt tolerance is a complex quantitative trait. Biotechnological efforts to improve the salt tolerance of rice hinge on a detailed understanding of the molecular mechanisms underlying salt stress tolerance. In this review, we summarize progress in the breeding of salt-tolerant rice and in the mapping and cloning of genes and quantitative trait loci (QTLs) associated with salt tolerance in rice. Furthermore, we describe biotechnological tools that can be used to cultivate salt-tolerant rice, providing a reference for efforts aimed at rapidly and precisely cultivating salt-tolerance rice varieties.
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To HTM, Le KQ, Van Nguyen H, Duong LV, Kieu HT, Chu QAT, Tran TP, Mai NTP. A genome-wide association study reveals the quantitative trait locus and candidate genes that regulate phosphate efficiency in a Vietnamese rice collection. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2020; 26:2267-2281. [PMID: 33268928 PMCID: PMC7688854 DOI: 10.1007/s12298-020-00902-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/12/2020] [Accepted: 10/17/2020] [Indexed: 05/21/2023]
Abstract
The crucial role of phosphate (Pi) for plant alongside the expected depletion of non-renewable phosphate rock have created an urgent need for phosphate-efficient rice varieties. In this study, 157 greenhouse-grown Vietnamese rice landraces were treated under Pi-deficient conditions to discover the genotypic variation among biochemical traits, including relative efficiency of phosphorus use (REP), relative root to shoot weight ratio (RRSR), relative physiological phosphate use efficiency (RPPUE), and relative phosphate uptake efficiency (RPUpE). Plants were grown in Yoshida nutrient media with either a full (320 μM) or a low Pi supply (10 μM) over six weeks. This genome-wide association study led to the discovery of 31 significant single nucleotide polymorphisms, 18 quantitative trait loci (QTLs), and 85 candidate genes. A common QTL named qRPUUE9.16 was found among the three investigated traits. Some interesting candidate genes, such as PLASMA MEMBRANE PROTEIN1 (OsPM1), CALMODULIN-RELATED CALCIUM SENSOR PROTEIN 15 (OsCML15), phosphatases 2C (PP2C), STRESS-ACTIVATED PROTEIN KINASE (OsSAPK2), and GLYCEROPHOSPHORYL DIESTER PHOSPHODIESTERASES (GDPD13), were found strongly correlated to the Pi starvation. RNA sequencing transcriptomes revealed that 45 out of 85 candidate genes were significantly regulated under Pi starvation. Furthermore, nearly two-thirds of genotypes did not possess the OsPsTOL1 gene; however, no significant difference was observed in response to Pi deficiency between genotypes with or without this gene, suggesting that other QTLs in rice may resist Pi starvation. These results provide new information on the genetics of nutrient use efficiency in rice and may potentially assist with developing more phosphate-efficient rice plants.
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Affiliation(s)
- Huong Thi Mai To
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Khang Quoc Le
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hiep Van Nguyen
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Linh Viet Duong
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hanh Thi Kieu
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Quynh Anh Thi Chu
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Trang Phuong Tran
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nga T. P. Mai
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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