Transcriptome-Wide Identification and Functional Characterization of CIPK Gene Family Members in Actinidia valvata under Salt Stress
文献类型: 外文期刊
作者: Shichao Gu;Muhammad Abid;Danfeng Bai;Chen Chen;Leiming Sun;Xiujuan Qi;Yunpeng Zhong;Jinbao Fang
作者机构:
关键词: CIPK;ion homeostasis;kiwifruit;salt tolerance
期刊名称: International journal of molecular sciences
ISSN: 1422-0067
年卷期: 2023 年 24 卷 1 期
页码:
收录情况: SCIE(2023版)
摘要: Fruit plants are severely constrained by salt stress in the soil due to their sessile nature. Ca2+ sensors, which are known as CBL-interacting protein kinases (CIPKs), transmit abiotic stress signals to plants. Therefore, it is imperative to investigate the molecular regulatory role of CIPKs underlying salt stress tolerance in kiwifruit. In the current study, we have identified 42 CIPK genes from Actinidia. valvata (A.valvata). All the AvCIPKs were divided into four different phylogenetic groups. Moreover, these genes showed different conserved motifs. The expression pattern analysis showed that AvCIPK11 was specifically highly expressed under salt stress. The overexpression of AvCIPK11 in 'Hongyang' (a salt sensitive commercial cultivar from Actinidia chinensis) enhanced salt tolerance by maintaining K+/Na+ homeostasis in the leaf and positively improving the activity of POD. In addition, the salt-related genes AcCBL1 and AcNHX1 had higher expression in overexpression lines. Collectively, our study suggested that AvCIPK11 is involved in the positive regulation of salt tolerance in kiwifruit.
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