Biotechnology Bulletin ›› 2016, Vol. 32 ›› Issue (4): 198-202.doi: 10.13560/j.cnki.biotech.bull.1985.2016.04.026

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The Construction of the Gene Transfer System of Strain Streptomyces sp. 211726 Producing Azalomycin F

MA Yan-ling1, LIU Fu-lai1, ZHANG Min1, SUN Yu-hui2, HONG Kui2   

  1. 1. College of Food and Horticultural Sciences,Foshan University,Foshan 528231;
    2. School of Pharmaceutical Sciences,Wuhan University,Wuhan 430071
  • Received:2015-07-23 Online:2016-04-25 Published:2016-04-26

Abstract:

The objective of this study is to establish the gene transfer system of strain Streptomyces sp. 211726 producing azalomycin F,which can be used for genetic manipulations such as gene knock-out and expression of foreign genes. Intergeneric genetic transfer system of Streptomyces sp. 211726 producing azalomycin F was constructed by conjugating integrative plasmid pSET152 with pIB139. Results showed that 25 mg/mL apramycin may be used to efficiently screen conjugants. PCR verification revealed that exogenous plasmid was successfully integrated in the chromosomal DNA of Streptomyces sp. 211726. The continuous passage culture experiment demonstrated that transformed pSET152 and pIB139 of conjugants were stably inherited.

Key words: azalomycin F, Streptomyces sp. 211726, conjugation, genetic stability