[Objective] To breed L-arginine high-yielding strains by atmospheric and room temperature plasma(ARTP), and to explore the optimal fermentation conditions of mutants by response surface method. [Methods] The L-homoarginine and 8-azaguanine resistant strain was obtained from the strain Corynebacterium glutamicum GUI089(SGr, L-His-) that was treated by ARTP. Based on the results of single factor experiments, ammonium sulfate, glucose and urea were selected as independent variables to optimize fermentation con...