Transition Phase Regulator AbrB Positively Regulates the sip1Ab1 Gene Expression in Bacillus thuringiensis

作者：Xinxin Shen, Qingyue Yu, Huanhuan Liu, Jiaojiao Wang, Ruibin Zhang, Qi Peng, Fuping Song · 发表于：Microbiology Spectrum · 年份：2021 · DOI：10.1128/spectrum.00075-21 · 被引用次数：9 · 研究领域：Insect Resistance and Genetics、Bacillus and Francisella bacterial research、Insect and Pesticide Research

Bacillus thuringiensis Sip proteins are secreted insecticidal toxins that are toxic to coleopteran pests. In this study, we investigated the transcriptional mechanism of the sip gene and showed strong evidence that Sip1Ab1 is secreted in the transition phase and that AbrB, a transition phase regulator that is usually a repressor, positively and directly regulates sip1Ab1 .