Tomato SlWRKY3 Negatively Regulates Resistance Via

Overview

Journal Plants (Basel)

Date 2024 Jun 27

PMID 38931029

Authors

Dan Luo

Jun Cai

Wenhui Sun

Qihong Yang

Guoyu Hu

Taotao Wang

Affiliations

Soon will be listed here.

Abstract

is considered the second most important fungal plant pathogen, and can cause serious disease, especially on tomato. The gene encodes a receptor-like kinase that can positively regulate plant resistance to . Here, we identified a tomato WRKY transcription factor SlWRKY3 that binds to the W-box on the promoter. It can negatively regulate transcription, then regulate downstream signaling pathways, and ultimately negatively regulate tomato resistance to interference can enhance resistance to , and overexpression leads to susceptibility to . Additionally, we found that can significantly, and rapidly, induce the upregulation of expression. In transgenic plants, the expression level was negatively correlated with expression. Compared with the control, the expression of the SA pathway marker gene was downregulated in plants and upregulated in plants when inoculated with for 48 h. Moreover, positively regulated ROS production. Overall, can inhibit transcription in tomato, and negatively regulate resistance to by modulating the downstream SA and ROS pathways.

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