Engineering Streptomyces diastatochromogenes 1628 to increase the production of toyocamycin
Engineering Streptomyces diastatochromogenes 1628 to increase the production of toyocamycin
复制标题
对产色链霉菌 1628 进行工程改造以增加丰加霉素的产量
DOI:
10.1002/elsc.201400239
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发表时间:
2015-11
影响因子:
2.7
通讯作者:
Yu Xiaoping
中科院分区:
文献类型:
--
作者:
Tao Libin;Ma Zheng;Xu Xianhao;Bechthold Andreas;Bian Yalin;Shentu Xuping;Yu Xiaoping
Toyocamycin (TM) shows antifungal activity and can be used to treat plant diseases. TM is produced by Streptomyces diastatochromogenes 1628, but the production rate is always very low. Recently, the gene toyG was cloned; however, nothing was known about the influence of toyG on TM production. In this study, the rational combined co‐expression of toyG with frr encoding a ribosome recycling factor and vgb encoding Vitreoscilla hemoglobin was performed. Introduction of these genes in double‐ or triple‐combination into strain S. diastatochromogenes 1628 led to greatly increased TM production. Transcription analysis revealed that higher TM production in the constructed recombinant strains resulted from an increase in transcriptional levels of toyG gene. At the end, among all these different recombinant strains, the strain S. diastatochromogenes 1628‐VGF, harboring vgb, frr, and toyG placed under the control of PermE*, exhibited the largest increase in TM production. Notably, TM produced by S. diastatochromogenes 1628‐VGF reached the highest level of 319.2 mg/L at 72 h, while TM yield of the original strain 1628 was 147.1 mg/L at 84 h. The high‐yield, energy‐saving strain 1628‐VGF constructed in this study shall be beneficial for the industrial production of TM.
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DOI:
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发表时间:
--
期刊:
--
影响因子:
--
作者:
K. Livak;Thomas D. Schmittgen
通讯作者:
K. Livak;Thomas D. Schmittgen
影响因子:
2.8
作者:
Liu, Yanyan;Ryu, Hojin;Zhang, Kecheng
通讯作者:
Zhang, Kecheng
影响因子:
2.6
作者:
Ma, Zheng;Liu, Jinxiu;Yu, Xiaoping
通讯作者:
Yu, Xiaoping
影响因子:
5
作者:
Tan-Che Zhou;Byung-gee Kim;J. Zhong
通讯作者:
Tan-Che Zhou;Byung-gee Kim;J. Zhong
影响因子:
8.4
作者:
T. Zhu;Xueqing Cheng;Yuntian Liu;Z. Deng;Delin You
通讯作者:
T. Zhu;Xueqing Cheng;Yuntian Liu;Z. Deng;Delin You