Enhancement of fengycin production in Bacillus amyloliquefaciens by genome shuffling and relative gene expression analysis using RT-PCR.
a College of Food Science and Engineering, Henan University of Science and Technology, Tianjing Road, Luoyang 471003, People's Republic of China.
b College of Food Science and Technology, Nanjing Agricultural University, Jiangsu, Nanjing 210095, People's Republic of China.
- Published Article
Canadian Journal of Microbiology
Canadian Science Publishing
- Publication Date
Genome shuffling is an efficient approach for the rapid engineering of microbial strains with desirable industrial phenotypes. In this study, we used genome shuffling in an attempt to improve fengycin production of the wild-type strain Bacillus amyloliquefaciens ES-2-4. After 2 rounds of genome shuffling, a high-yield recombinant F2-72 (FMB72) strain that exhibited 8.30-fold increases in fengycin production was obtained. Comparative analysis of synthetase gene (fenA) expression was conducted between the initial and shuffled strains using fluorescent quantitation RT-PCR. Delta CT (threshold cycle) relative quantitation analysis revealed that fengycin synthetase gene (fenA) expression at the transcriptional level in the FMB72 strain was 12.77-fold greater than in the ES-2-4 wild type. The shuffled strain has a potential application in food and pharmaceutical industries. At the same time, the analysis of improved phenotypes will provide more valuable data for inverse metabolic engineering.
Report this publication
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
This record was last updated on 07/07/2017 and may not reflect the most current and accurate biomedical/scientific data available from NLM.
The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/27035066