作者: Yugang Gao , Jing Liang , Ruxue Xiao , Pu Zang , Yan Zhao
DOI: 10.1186/S13568-018-0694-0
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摘要: Trace elements are essential nutrients for the growth of microorganisms and play an important role in their proliferation. Hence, the purpose of this paper is to explore the optimal C and N sources for large-scale culture of Paenibacillus polymyxa, and to screen trace elements that can promote their proliferation and improve the activity. First, the concentration of Paenibacillus polymyxa Pp-7250, the number of spores were used as evaluation index. It was found that the four trace elements Cu 2+, Fe 2+, Mn 2+, and Zn 2+ could promote the …