Virus-Induced Gene Silencing of SlWRKY79 Attenuates Salt Tolerance in Tomato Plants

被引：3

作者：

He, Yuqing ^{[1
]}

Zhang, Xiaochun ^{[1
]}

Tan, Yinxiao ^{[1
]}

Si, Deli ^{[1
]}

Zhao, Tingting ^{[1
]}

Xu, Xiangyang ^{[1
]}

Jiang, Jingbin ^{[1
]}

Yang, Huanhuan ^{[1
]}

Li, Jingfu ^{[1
]}

机构：

[1] Northeast Agr Univ, Sch Hort & Landscape Architecture, Harbin 150030, Peoples R China

来源：

AGRONOMY-BASEL | 2021年 / 11卷 / 08期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

SlWRKY79; salt resistance; VIGS; tomato; WRKY TRANSCRIPTION FACTORS; DNA-BINDING PROTEINS; ABIOTIC STRESS; ABSCISIC-ACID; PROMOTERS; DROUGHT;

D O I：

10.3390/agronomy11081519

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Previous studies have shown that WRKY transcription factors play important roles in abiotic stress responses. Thus, virus-induced gene silencing (VIGS) was used to identify the function of SlWRKY79 in the salt tolerance of tomato plants by downregulating the expression of the SlWRKY79 gene. Under the same salt treatment conditions, the SlWRKY79-silenced plants showed faster stem wilting and more severe leaf shrinkage than the control plants, and the bending degree of the stem of the SlWRKY79-silenced plants was also greater than that of the control plants. Physiological analyses showed that considerably higher levels of hydrogen peroxide (H2O2), superoxide anion (O2-), and abscisic acid (ABA) accumulated in the leaves of the SlWRKY79-silenced plants than in those of the controls after salt treatment. Taken together, our results suggested that SlWRKY79 plays a positive regulatory role in salt tolerance in tomato plants.

引用

页数：11

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