Calcium/calmodulin modulates salt responses by binding a novel interacting protein SAMS1 in peanut (Arachis hypogaea L.)

• DOI: 10.1016/j.cj.2022.06.007
• Publication Date: 2022-07-19T22:36:45Z
• Authors: Sha Yang; Jianguo Wang; Zhaohui Tang; Yan Li; Jialei Zhang; Feng Guo; Jingjing Meng; Feng Cui; Xinguo Li; Shubo Wan
• Keywords: Arachis hypogaea; Arachis

The Ca 2+ /CaM signal transduction pathway helps plants adapt to environmental stress. However, our knowledge on the functional proteins of in peanut ( Arachis hypogeae L.) remains limited. In present study, a novel calmodulin 4 (CaM4)-binding protein S-adenosyl-methionine synthetase 1 (SAMS1) was identified using yeast two-hybrid assay. Expression AhSAMS1 induced by , ABA, and salt To elucidate function AhSAMS1, physiological phenotypic analyses were performed with wild-type transgenic materials. Overexpression increased spermidine synthesis while decreased contents ethylene, thereby eliminating excessive reactive oxygen species (ROS) lines under reduced uptake Na + leakage K from mesophyll cells, less sensitive stress during early seedling growth, agreement induction SOS NHX genes Transcriptomics combined epigenetic regulation uncovered relationships between differentially expressed methylated regions, which raised tolerance growth. Our findings support model role ROS-dependent ion homeostasis enhanced AhSAMS1-induced methylation regulated CaM, thus providing new strategy for increasing