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Strain Improvement by Overexpression of the laeA Gene in Monascus pilosus for the Production of Monascus-Fermented Rice
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  • Strain Improvement by Overexpression of the laeA Gene in Monascus pilosus for the Production of Monascus-Fermented Rice
  • Strain Improvement by Overexpression of the laeA Gene in Monascus pilosus for the Production of Monascus-Fermented Rice
저자명
Lee. Sang Sub,Lee. Jin Hee,Lee. Inhyung
간행물명
Journal of microbiology and biotechnology
권/호정보
2013년|23권 7호|pp.959-965 (7 pages)
발행정보
한국미생물생명공학회
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정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Monascus species have been used to produce fermented rice called Monascus-fermented rice (MFR). To improve a Monascus strain via activation of secondary metabolite (SM) gene clusters for use in the production of MFR, we overexpressed an ortholog of the laeA gene, which encodes a global positive regulator of secondary metabolism under the control of the strong heterologous Aspergillus nidulans alcA promoter in Monascus pilosus. The OE::laeA transformant produced more SMs, including those not detected under uninduced conditions. MFR produced using the M. pilosus OE::laeA strain contained 4 times more monacolin K, a cholesterol-lowering agent, than MFR produced using the wild-type strain. In addition, pigment production was remarkably increased, and the antioxidant activity was increased as well. The results from this study suggest that Monascus species, which are important industrial fermentative fungi in Asia, can be improved for the production of functional foods by overexpressing the laeA gene.