Heterologous expression of the Glycine soja Kunitz-type protease inhibitor GsKTI improves resistance to drought stress and Helicoverpa armigera in transgenic Arabidopsis lines

文献类型: 外文期刊

第一作者: Zhang, Yongxing

作者: Zhang, Yongxing;Guo, Wei;Cao, Dong;Chen, Limiao;Yang, Hongli;Chen, Haifeng;Chen, Shuilian;Hao, Qingnan;Qiu, Dezhen;Shan, Zhihui;Yang, Zhonglu;Yuan, Songli;Zhang, Chanjuan;Zhou, Xinan;Shen, Xinjie

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关键词: Kunitz-type protease inhibitors; Glycine soja; Helicoverpa armigera huber; Drought stress; Arabidopsis thaliana

期刊名称:PLANT PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:6.5; 五年影响因子:6.4 )

ISSN: 0981-9428

年卷期: 2023 年 202 卷

页码:

收录情况: SCI

摘要: Kunitz-like protease inhibitors (KTIs) have been identified to play critical roles in insect defense, but evidence for their involvement in drought stress is sparse. The aim of this study was to identify and functionally characterize a Kunitz-like protease inhibitor, GsKTI, from the wild soybean (Glycine soja) variety ED059. Expression patterns suggest that drought stress and insect herbivory may induce GsKTI transcript levels. Transgenic Arabidopsis lines overexpressing GsKTI have been shown to exhibit enhanced drought tolerance by regulating the ABA signaling pathway and increasing xylem cell number. Transgenic Arabidopsis leaves overexpressing GsKTI interfered with insect digestion and thus had a negative effect on the growth of Helicoverpa armigera. It is concluded that GsKTI increases resistance to drought stress and insect attack in transgenic Arabidopsis lines.

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