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Bioprocess and Biosystems Engineering

, Volume 39, Issue 2, pp 353–360 | Cite as

Stimulatory effect of ethanol on libertellenone H biosynthesis by Arctic fungus Eutypella sp. D-1

  • Chu Shen
  • Ning Xu
  • Yanyun Gao
  • Xiaoyue Sun
  • Ying YinEmail author
  • Menghao CaiEmail author
  • Xiangshan Zhou
  • Yuanxing Zhang
Short Communication

Abstract

Libertellenone H (1) was a promising antitumor diterpenoid isolated from Arctic fungus Eutypella sp. D-1, however, its production was very limited. In this study, we investigated the effects of ethanol on cell growth and libertellenone H production. The mycelium in ethanol-feeding cultures was fragmented and dispersed, and the titer of libertellenone H was remarkably increased to 4.88 mg l−1 in an optimal feeding manner, which was 16.4-fold higher than the control group. To provide an insight into the cell response to ethanol, genes critical to the libertellenone H biosynthesis were successfully cloned and their transcription levels were determined. The results suggested that the gene transcription levels of 3-hydroxy-3-methyl glutaric acyl coenzyme A reductase and geranylgeranyl diphosphate synthase were up-regulated by ethanol stimulation. The results from this study were helpful for further understanding of the ethanol function on diterpenes biosynthesis as well as developing more effective strategies for over-production of these desired secondary metabolites.

Keywords

Arctic fungus Libertellenone H Ethanol feeding 3-Hydroxy-3-methyl glutaric acyl coenzyme A reductase Geranylgeranyl diphosphate synthase 

Notes

Acknowledgments

This work was financially supported by the National High Technology Research and Development Program of China (2012AA092105) and the Fundamental Research Funds for the Central Universities (22A201514040). We thank Prof. Xiaoyu Liu, the Second Military Medical University for supply of the strain and the libertellenone H standard.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Chu Shen
    • 1
  • Ning Xu
    • 1
  • Yanyun Gao
    • 1
  • Xiaoyue Sun
    • 1
  • Ying Yin
    • 1
    Email author
  • Menghao Cai
    • 1
    Email author
  • Xiangshan Zhou
    • 1
  • Yuanxing Zhang
    • 1
    • 2
  1. 1.State Key Laboratory of Bioreactor EngineeringEast China University of Science and TechnologyShanghaiChina
  2. 2.Shanghai Collaborative Innovation Center for Biomanufacturing TechnologyShanghaiChina

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