Evidence that arachidonic acid is deficient in phosphatidylinositol of Drosophila heads

Tohru Yoshioka, Hiroko Inoue, Takeshi Kasama, Yousuke Seyama, Shigeru Nakashima, Yoshinori Nozawa, Yoshiki Hotta

研究成果: Article査読

27 被引用数 (Scopus)

抄録

We have found that arachidonic (20 : 4) acid is indetectable in phosphatidylinositol and diacylglycerol extracted from Drosophila heads. After careful examinations of the lipid extraction processes and fatty acid detection system (gas-liquid chromatography), we excluded the possibility of the oxidation of polyunsaturated fatty acids or of having overlooked a trace amount of the fatty acid. The precursors of arachidonic, dihomo γ-linolenic (20 : 3), and γ-linolenic (18 : 3) acid, were also indetectable in these lipids. On the basis of these results, it appears that the arachidonic acid cascade is essentially absent in Drosophila head, including the brain and compound eyes.Since arachidonic acid is considered to be a key molecule in phosphatidylinositol turnover in the brain, it is of interest that Drosophila brain and eyes do not require arachidonic acid for their functions.

本文言語English
ページ(範囲)657-662
ページ数6
ジャーナルJournal of Biochemistry
98
3
出版ステータスPublished - 1985 9
外部発表はい

ASJC Scopus subject areas

  • Statistics, Probability and Uncertainty
  • Applied Mathematics
  • Physiology (medical)
  • Radiology Nuclear Medicine and imaging
  • Molecular Biology
  • Biochemistry

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