IAA Plays an Important Role in Alkaline Stress Tolerance by Modulating Root Development and ROS Detoxifying Systems in Rice Plants
文献类型：期刊论文
| 作者 | Ma, Changkun2; Yuan, Shuai2; Xie, Biao1; Li, Qian1; Wang, Quanjiu2; Shao, Mingan3 |
| 刊名 | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 23期号:23页码:17 |
| 关键词 | alkaline stress auxin ROS detoxifying mechanism rice (Oryza sativa) |
| DOI | 10.3390/ijms232314817 |
| 通讯作者 | Ma, Changkun(mack@xaut.edu.cn) ; Wang, Quanjiu(wquanjiu@163.com) |
| 英文摘要 | Auxin regulates plant growth and development, as well as helps plants to survive abiotic stresses, but the effects of auxin on the growth of alkaline-stressed rice and the underlying molecular and physiological mechanisms remain unknown. Through exogenous application of IAA/TIBA, this study explored the physiological and molecular mechanisms of alkaline stress tolerance enhancement using two rice genotypes. Alkaline stress was observed to damage the plant growth, while exogenous application of IAA mitigates the alkaline-stress-induce inhibition of plant growth. After application of exogenous IAA to alkaline-stressed rice, dry shoot biomass, foliar chlorophyll content, photosynthetic rate in the two rice genotypes increased by 12.6-15.6%, 11.7-40.3%, 51.4-106.6%, respectively. The adventitious root number, root surface area, total root length and dry root biomass in the two rice genotypes increased by 29.3-33.3%, 26.4-27.2%, 42.5-35.5% and 12.8-33.1%, respectively. The accumulation of H2O2, MAD were significantly decreased with the application of IAA. The activities of CAT, POD, and SOD in rice plants were significantly increased by exogenous application of IAA. The expression levels of genes controlling IAA biosynthesis and transport were significantly increased, while there were no significant effects on the gene expression that controlled IAA catabolism. These results showed that exogenous application of IAA could mitigate the alkaline-stress-induced inhibition of plant growth by regulating the reactive oxygen species scavenging system, root development and expression of gene involved in IAA biosynthesis, transport and catabolism. These results provide a new direction and empirical basis for improving crop alkaline tolerance with exogenous application of IAA. |
| WOS关键词 | ORYZA-SATIVA L. ; AUXIN ; SALT ; ARCHITECTURE ; GROWTH ; BIOSYNTHESIS ; RESPONSES ; SALINITY ; DYNAMICS ; QUALITY |
| 资助项目 | National Natural Science Foundation of China ; Major Science and Technology Projects of the XPCC ; Major Science and Technology Projects of Autonomous Region ; [42107326] ; [41830754] ; [52179042] ; [2021AA003-2] ; [2020A01003-3] |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000896293200001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; Major Science and Technology Projects of the XPCC ; Major Science and Technology Projects of Autonomous Region |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188030]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Ma, Changkun; Wang, Quanjiu |
| 作者单位 | 1.Northwest A&F Univ, Coll Hort, Xianyang 712100, Peoples R China 2.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg, Xian 710048, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Changkun,Yuan, Shuai,Xie, Biao,et al. IAA Plays an Important Role in Alkaline Stress Tolerance by Modulating Root Development and ROS Detoxifying Systems in Rice Plants[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2022,23(23):17. |
| APA | Ma, Changkun,Yuan, Shuai,Xie, Biao,Li, Qian,Wang, Quanjiu,&Shao, Mingan.(2022).IAA Plays an Important Role in Alkaline Stress Tolerance by Modulating Root Development and ROS Detoxifying Systems in Rice Plants.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,23(23),17. |
| MLA | Ma, Changkun,et al."IAA Plays an Important Role in Alkaline Stress Tolerance by Modulating Root Development and ROS Detoxifying Systems in Rice Plants".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 23.23(2022):17. |
入库方式： OAI收割
来源：地理科学与资源研究所
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