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OsCIPK9 Interacts with OsSOS3 and Affects Salt-Related Transport to Improve Salt Tolerance

文献类型： 外文期刊

作者： Zhou, Zhenling 1 ; Tang, Weijie 3 ; Sun, Zhiguang 1 ; Li, Jingfang 1 ; Yang, Bo 1 ; Liu, Yan 1 ; Wang, Baoxiang 1 ; Xu, Dayong 1 ; Yang, Jianchang 2 ; Zhang, Yunhui 3 ;

作者机构： 1.Lianyungang Acad Agr Sci, Lianyungang 222000, Peoples R China

2.Agr Coll Yangzhou Univ, Jiangsu Key Lab Crop Genet & Physiol, Jiangsu Key Lab Crop Cultivat & Physiol, Yangzhou 225009, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Germplasm Resources & Biotechnol, Prov Key Lab Agrobiol, Nanjing 210014, Peoples R China

4.Zhongshan Biol Breeding Lab, 50 Zhongling St, Nanjing 210014, Peoples R China

5.Yangzhou Univ, Jiangsu Coinnovat Ctr Modern Prod Technol Grain Cr, Yangzhou 225009, Peoples R China

关键词： OsCIPK9; OsSOS3; sat-related transporters; salt tolerance; rice

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 12 卷 21 期

页码：

收录情况： SCI

摘要： Salt is harmful to crop production. Therefore, it is important to understand the mechanism of salt tolerance in rice. CIPK genes have various functions, including regulating salt tolerance and other types of stress and nitrogen use efficiency. In rice, OsCIPK24 is known to regulate salt tolerance, but other OsCIPKs could also function in salt tolerance. In this study, we identified another OsCIPK-OsCIPK9-that can regulate salt tolerance. Knockout of OsCIPK9 in rice could improve salt tolerance. Through expression analyses, OsCIPK9 was found to be mainly expressed in the roots and less expressed in mature leaves. Meanwhile, OsCIPK9 had the highest expression 6 h after salt treatment. In addition, we proved the interaction between OsCIPK9 and OsSOS3. The RNA-seq data showed that OsCIPK9 strongly responded to salt treatment, and the transporters related to salt tolerance may be downstream genes of OsCIPK9. Finally, haplotype analyses revealed that Hap6 and Hap8 mainly exist in indica, potentially providing a higher salt tolerance. Overall, a negative regulator of salt tolerance, OsCIPK9, which interacted with OsSOS3 similarly to OsCIPK24 and influenced salt-related transporters, was identified, and editing OsCIPK9 potentially could be helpful for breeding salt-tolerant rice.

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