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Yao X, Zhou M, Ruan J, Peng Y, Ma C, Wu W, Gao A, Weng W, Cheng J. Physiological and Biochemical Regulation Mechanism of Exogenous Hydrogen Peroxide in Alleviating NaCl Stress Toxicity in Tartary Buckwheat (Fagopyrum tataricum (L.) Gaertn). Int J Mol Sci 2022; 23:ijms231810698. [PMID: 36142630 PMCID: PMC9505081 DOI: 10.3390/ijms231810698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
We aimed to elucidate the physiological and biochemical mechanism by which exogenous hydrogen peroxide (H2O2) alleviates salt stress toxicity in Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn). Tartary buckwheat “Chuanqiao-2” under 150 mmol·L−1 salt (NaCl) stress was treated with 5 or 10 mmol·L−1 H2O2, and seedling growth, physiology and biochemistry, and related gene expression were studied. Treatment with 5 mmol·L−1 H2O2 significantly increased plant height (PH), fresh and dry weights of shoots (SFWs/SDWs) and roots (RFWs/RDWs), leaf length (LL) and area (LA), and relative water content (LRWC); increased chlorophyll a (Chl a) and b (Chl b) contents; improved fluorescence parameters; enhanced antioxidant enzyme activity and content; and reduced malondialdehyde (MDA) content. Expressions of all stress-related and enzyme-related genes were up-regulated. The F3′H gene (flavonoid synthesis pathway) exhibited similar up-regulation under 10 mmol·L−1 H2O2 treatment. Correlation and principal component analyses showed that 5 mmol·L−1 H2O2 could significantly alleviate the toxic effect of salt stress on Tartary buckwheat. Our results show that exogenous 5 mmol·L−1 H2O2 can alleviate the inhibitory or toxic effects of 150 mmol·L−1 NaCl stress on Tartary buckwheat by promoting growth, enhancing photosynthesis, improving enzymatic reactions, reducing membrane lipid peroxidation, and inducing the expression of related genes.
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Affiliation(s)
- Xin Yao
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Meiliang Zhou
- Institute of Crop Science, Chinese Academy of Agriculture Science, Beijing 100081, China
| | - Jingjun Ruan
- College of Agronomy, Guizhou University, Guiyang 550025, China
- Correspondence: (J.R.); (J.C.)
| | - Yan Peng
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Chao Ma
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Weijiao Wu
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Anjing Gao
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Wenfeng Weng
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Jianping Cheng
- College of Agronomy, Guizhou University, Guiyang 550025, China
- Correspondence: (J.R.); (J.C.)
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Sun Z, Wang X, Liu R, Dun W, Ma M, Han Y, Li H, Liu L, Hou S. Correction to: Comparative transcriptomic analysis reveals the regulatory mechanism of the gibberellic acid pathway of Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.) dwarf mutants. BMC PLANT BIOLOGY 2021; 21:240. [PMID: 34044770 PMCID: PMC8157667 DOI: 10.1186/s12870-021-03014-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Zhaoxia Sun
- College of Agriculture, Institute of Agricultural Bioengineering, Shanxi Agricultural University, Shanxi, 030801, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau, Ministry of Agriculture, Shanxi, 030031, China
- Center for Agricultural Genetic Resources Research, Shanxi Agricultural University, Shanxi, 030031, China
| | - Xinfang Wang
- College of Agriculture, Institute of Agricultural Bioengineering, Shanxi Agricultural University, Shanxi, 030801, China
| | - Ronghua Liu
- College of Agriculture, Institute of Agricultural Bioengineering, Shanxi Agricultural University, Shanxi, 030801, China
| | - Wei Dun
- College of Agriculture, Institute of Agricultural Bioengineering, Shanxi Agricultural University, Shanxi, 030801, China
| | - Mingchuan Ma
- Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding, Shanxi, 030031, China
| | - Yuanhuai Han
- College of Agriculture, Institute of Agricultural Bioengineering, Shanxi Agricultural University, Shanxi, 030801, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau, Ministry of Agriculture, Shanxi, 030031, China
- Center for Agricultural Genetic Resources Research, Shanxi Agricultural University, Shanxi, 030031, China
| | - Hongying Li
- College of Agriculture, Institute of Agricultural Bioengineering, Shanxi Agricultural University, Shanxi, 030801, China
| | - Longlong Liu
- Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding, Shanxi, 030031, China.
| | - Siyu Hou
- College of Agriculture, Institute of Agricultural Bioengineering, Shanxi Agricultural University, Shanxi, 030801, China.
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau, Ministry of Agriculture, Shanxi, 030031, China.
- Center for Agricultural Genetic Resources Research, Shanxi Agricultural University, Shanxi, 030031, China.
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