Herbicide-resistant lines of microalgae: Growth and fatty acid composition

Zvi Cohen, Marasri Reungjitchachawali, Wipawan Siangdung, Morakot Tanticharoen, Yair M. Heimer

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Cell lines of Spirulina platensis and Porphyridium cruentum resistant to growth inhibition by the herbicide SAN 9785 had a significantly higher growth rate than their respective wild-type strains. These lines were also shown to overproduce γ-linolenic acid (GLA) and eicosapentaenoic acid (EPA), respectively, in the presence and absence of the inhibitor, as compared with wild-type cultures under similar conditions. The effect was most conspicuous in polar lipids. Thus, the proportion of GLA in the galactolipid (GL) fraction of the SAN 9785-resistant strain of S. platensis, SRS-1, increased in the absence of the inhibitor from 33.3% in the wild-type to 39.0%. Similarly, the proportion of EPA in the GL fraction of the resistant strain of P. cruentum, SRP, increased in the presence of the inhibitor from 29.1 to 45.4%.

Original languageEnglish
Pages (from-to)973-978
Number of pages6
Issue number4
StatePublished - 1 Jan 1993


  • Porphyridium cruentum
  • SAN 9785.
  • Spirulina platensis
  • eicosapentaenoic acid
  • fatty acid overproduction
  • herbicide-resistance
  • microalgae
  • γ-linolenic acid

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Plant Science
  • Horticulture


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