Biotechnology Letters

, Volume 27, Issue 6, pp 389–393

Enhancement of polyunsaturated fatty acid production by cerulenin treatment in polyunsaturated fatty acid-producing bacteria

  • Naoki Morita
  • Takanori Nishida
  • Mika Tanaka
  • Yutaka Yano
  • Hidetoshi Okuyama
Article

DOI: 10.1007/s10529-005-1532-4

Cite this article as:
Morita, N., Nishida, T., Tanaka, M. et al. Biotechnol Lett (2005) 27: 389. doi:10.1007/s10529-005-1532-4

Abstract

When docosahexaenoic acid (DHA)-producing Moritella marina strain MP-1 was cultured in the medium containing 0.5 μ g cerulenin ml−1, an inhibitor for fatty acid biosynthesis, the cells grew normally, but the␣content of DHA in the total fatty acids increased from 5.9–19.4%. The DHA yield of M. marina strain MP-1 cells also increased from 4 to 13.7 mg l−1 by cerulenin treatment. The same effect of cerulenin was observed in eicosapentaenoic acid (EPA)-producing Shewanellamarinintestina strain IK-1 grown in the medium containing 7.5 μg cerulenin ml−1, and the cerulenin treatment increased the EPA yield from 1.6 to 8 mg l−1. The use of cerulenin is, therefore, advantageous to increase the content of intracellular polyunsaturated fatty acids (PUFA) in particular PUFA-containing phospholipids in bacterial cells.

Keywords

cerulenindocosahexaenoic acid (DHA)eicosapentaenoic acid (EPA)polyunsaturated fatty acid (PUFA)PUFA-producing bacteria

Copyright information

© Springer 2005

Authors and Affiliations

  • Naoki Morita
    • 1
  • Takanori Nishida
    • 2
  • Mika Tanaka
    • 2
  • Yutaka Yano
    • 3
  • Hidetoshi Okuyama
    • 2
  1. 1.Research Institute of Genome-based BiofactoryNational Institute of Advanced Industrial Science and Technology (AIST)SapporoJapan
  2. 2.Laboratory of Environmental Molecular Biology, Graduate School of Environmental Earth ScienceHokkaido UniversitySapporoJapan
  3. 3.National Research Institute of Fisheries ScienceYokohama, KanagawaJapan