Genetic Engineering of Streptomyces natalensis VTCC-A-3245 to Improve Its Natamycin Production

tr. 65-72

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Main Authors: Nguyễn, Thị Hà Oanh, Nguyễn, Thị Vân, Nguyễn, Kim Nữ Thảo
Format: Article
Language:other
Published: H. : ĐHQGHN 2018
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Online Access:http://repository.vnu.edu.vn/handle/VNU_123/61579
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Institution: Vietnam National University, Hanoi
Language: other
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spelling oai:112.137.131.14:VNU_123-615792018-04-26T20:06:34Z Genetic Engineering of Streptomyces natalensis VTCC-A-3245 to Improve Its Natamycin Production Nguyễn, Thị Hà Oanh Nguyễn, Thị Vân Nguyễn, Kim Nữ Thảo Streptomyces natalensis natamycin, strain improvement pimM. tr. 65-72 Natamycin, a polyene compound with broad-spectrum activity against yeasts and fungi, was firstly found in Streptomyces natalensis. Because of its low toxicity to mammalian cells, natamycin is widely used in food industry and medicine to prevent fungal growth. Although natamycin has been used worldwide, this antifungal compound has not been produced in Vietnam. One of the reasons is that we do not own any industrial-scale production strain. In order to develop such production strain, strain improvement must be involved. Therefore, we carried out the study “Genetic engineering of Streptomyces natalensis VTCC-A-3245 to improve its production of natamycin”. In this study, we introduced a copy of the gene pimM, a positive regulator gene in the natamycin biosynthetic pathway, into S. natalensis chromosome, hence boosting the expression of the structural genes, resulting in the increase of natamycin production. As a result, a recombinant pSET152 plasmid containing pimM was constructed and transformed successfully into E. coli ET12567. After conjugation, a S. natalensis mutant carrying an additional copy of pimM was obtained. The result showed that the level of natamycin produced by the S. natalensis mutant strain increased 3 fold compared to the S. natalensis wildtype strain. 2018-04-02T08:07:40Z 2018-04-02T08:07:40Z 2016 Article 2588-1140. http://repository.vnu.edu.vn/handle/VNU_123/61579 other Tập 32;Số 1 application/pdf H. : ĐHQGHN
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language other
topic Streptomyces natalensis
natamycin,
strain improvement
pimM.
spellingShingle Streptomyces natalensis
natamycin,
strain improvement
pimM.
Nguyễn, Thị Hà Oanh
Nguyễn, Thị Vân
Nguyễn, Kim Nữ Thảo
Genetic Engineering of Streptomyces natalensis VTCC-A-3245 to Improve Its Natamycin Production
description tr. 65-72
format Article
author Nguyễn, Thị Hà Oanh
Nguyễn, Thị Vân
Nguyễn, Kim Nữ Thảo
author_facet Nguyễn, Thị Hà Oanh
Nguyễn, Thị Vân
Nguyễn, Kim Nữ Thảo
author_sort Nguyễn, Thị Hà Oanh
title Genetic Engineering of Streptomyces natalensis VTCC-A-3245 to Improve Its Natamycin Production
title_short Genetic Engineering of Streptomyces natalensis VTCC-A-3245 to Improve Its Natamycin Production
title_full Genetic Engineering of Streptomyces natalensis VTCC-A-3245 to Improve Its Natamycin Production
title_fullStr Genetic Engineering of Streptomyces natalensis VTCC-A-3245 to Improve Its Natamycin Production
title_full_unstemmed Genetic Engineering of Streptomyces natalensis VTCC-A-3245 to Improve Its Natamycin Production
title_sort genetic engineering of streptomyces natalensis vtcc-a-3245 to improve its natamycin production
publisher H. : ĐHQGHN
publishDate 2018
url http://repository.vnu.edu.vn/handle/VNU_123/61579
_version_ 1680965079132012544