Impact on Multiple Antibiotic Pathways Reveals MtrA as a Master Regulator of Antibiotic Production in Streptomyces spp. and Potentially in Other Actinobacteria

作者：Yanping Zhu, Peipei Zhang, Jing Zhang, Jiao Wang, Yinhua Lü, Xiuhua Pang · 发表于：Applied and Environmental Microbiology · 年份：2020 · DOI：10.1128/aem.01201-20 · 被引用次数：36 · 研究领域：Microbial Natural Products and Biosynthesis、Genomics and Phylogenetic Studies、Antibiotic Resistance in Bacteria

In natural environments, the ability to produce antibiotics helps the producing host to compete with surrounding microbes. In Streptomyces , increasing evidence suggests that the regulation of antibiotic production is complex, involving multiple regulatory factors. The regulatory factor MtrA is known to have additional roles beyond controlling development, and using bioassays, transcriptional studies, and DNA-binding assays, our study identified MtrA recognition sequences within multiple antibiotic pathways and indicated that MtrA directly controls the production of multiple antibiotics. Our analyses further suggest that this role of MtrA is evolutionarily conserved in Streptomyces species, as well as in other actinobacterial species, and also suggest that MtrA is a major regulatory factor in antibiotic production and in the survival of actinobacteria in nature.