Abstract:Atmospheric and room temperature plasma (ARTP), a new approach of mutagenesis, is characterized by fast mutagenesis speed, mild mutagenesis conditions, and environmental friendliness. The ARTP-induced mutants have high mutagenesis frequency and good genetic stability. Therefore, ARTP is widely used in microbial breeding. This paper reviews the progress in ARTP in microbial breeding in recent years, the screening strategy of mutants after mutagenesis, and the mechanism of ARTP-induced mutagenesis in microorganisms. Finally, we discuss the existing problems of ARTP in microbial breeding.