Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stress
Salt and drought stress has been an important factor limiting agricultural production, and SA is an important phenolic involved in stress response, but the function of SA in response to dual salt and drought stress in rice is not clear. In this study, the effects and mechanisms of exogenous SA-trigg...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Plant Stress |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667064X24000678 |
| _version_ | 1797292894138138624 |
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| author | Liqing Shan Yating Xu Dan Wu Jiayi Hu Tongyuan Yu Cong Dang Yunxia Fang Xiaoqin Zhang Quanxiang Tian Dawei Xue |
| author_facet | Liqing Shan Yating Xu Dan Wu Jiayi Hu Tongyuan Yu Cong Dang Yunxia Fang Xiaoqin Zhang Quanxiang Tian Dawei Xue |
| author_sort | Liqing Shan |
| collection | DOAJ |
| description | Salt and drought stress has been an important factor limiting agricultural production, and SA is an important phenolic involved in stress response, but the function of SA in response to dual salt and drought stress in rice is not clear. In this study, the effects and mechanisms of exogenous SA-triggered in rice adaptation to dual salt and drought stress were investigated by detecting physiological and biochemical indexes and the expression of salt and drought tolerance genes. The results showed that the application of SA could significantly increase the antioxidant enzyme activities of rice seedlings under salt and drought stress, thereby reducing the contents of rice H2O2 and MDA and maintaining the growth of rice seedlings. Moreover, the expression of genes involved in the response of abiotic stress, such as OsDREB2A, OsSAPK8, OsSAPK10 and OsMYB2, were up-regulated under salt and drought treatment, and SA application could further enhance the expression of those genes like OsDREB2A and OsSAPK8, suggesting that SA might regulate antioxidant enzyme activity via inducing the expression of salt and drought tolerance genes and enhancing the salt and drought tolerance of rice. The results will enrich the knowledge of the function of SA and provide a reference for studying the mechanism of SA in the salt and drought resistance of rice, and breeding new rice germplasm with improved salt and drought resistance. |
| first_indexed | 2024-03-07T20:03:05Z |
| format | Article |
| id | doaj.art-63b931f7019b424f8d36c6d394f27ce0 |
| institution | Directory Open Access Journal |
| issn | 2667-064X |
| language | English |
| last_indexed | 2024-03-07T20:03:05Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Plant Stress |
| spelling | doaj.art-63b931f7019b424f8d36c6d394f27ce02024-02-28T05:14:32ZengElsevierPlant Stress2667-064X2024-03-0111100413Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stressLiqing Shan0Yating Xu1Dan Wu2Jiayi Hu3Tongyuan Yu4Cong Dang5Yunxia Fang6Xiaoqin Zhang7Quanxiang Tian8Dawei Xue9College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China; Corresponding authors at: College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China; Corresponding authors at: College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.Salt and drought stress has been an important factor limiting agricultural production, and SA is an important phenolic involved in stress response, but the function of SA in response to dual salt and drought stress in rice is not clear. In this study, the effects and mechanisms of exogenous SA-triggered in rice adaptation to dual salt and drought stress were investigated by detecting physiological and biochemical indexes and the expression of salt and drought tolerance genes. The results showed that the application of SA could significantly increase the antioxidant enzyme activities of rice seedlings under salt and drought stress, thereby reducing the contents of rice H2O2 and MDA and maintaining the growth of rice seedlings. Moreover, the expression of genes involved in the response of abiotic stress, such as OsDREB2A, OsSAPK8, OsSAPK10 and OsMYB2, were up-regulated under salt and drought treatment, and SA application could further enhance the expression of those genes like OsDREB2A and OsSAPK8, suggesting that SA might regulate antioxidant enzyme activity via inducing the expression of salt and drought tolerance genes and enhancing the salt and drought tolerance of rice. The results will enrich the knowledge of the function of SA and provide a reference for studying the mechanism of SA in the salt and drought resistance of rice, and breeding new rice germplasm with improved salt and drought resistance.http://www.sciencedirect.com/science/article/pii/S2667064X24000678RiceSalt and drought stressSalicylic acidGene expression |
| spellingShingle | Liqing Shan Yating Xu Dan Wu Jiayi Hu Tongyuan Yu Cong Dang Yunxia Fang Xiaoqin Zhang Quanxiang Tian Dawei Xue Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stress Plant Stress Rice Salt and drought stress Salicylic acid Gene expression |
| title | Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stress |
| title_full | Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stress |
| title_fullStr | Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stress |
| title_full_unstemmed | Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stress |
| title_short | Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stress |
| title_sort | effects of salicylic acid on growth physiology and gene expression in rice seedlings under salt and drought stress |
| topic | Rice Salt and drought stress Salicylic acid Gene expression |
| url | http://www.sciencedirect.com/science/article/pii/S2667064X24000678 |
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