Phospholipid Derived from Hydrocarbons by Fungi

概要

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Strain no. 250-2,a hydrocarbon-utilizing filamentous fungi isolated from oil-polluted soil, was identifed as an Aspergillus sp. This organism grew well on both glucose and n-alkane (C11〜16) as sole carbon and energy sources. The most suitable substrate for growth was n-C15,and for phospholipid formation, n-C16.The major fatty acid in cellular lipids was C18 : 2 acid (46〜60%) in all cases. The proportion of odd-chain fatty acids was relatively high in the cells grown on odd-chain n-alkanes.Phospholipids in cellular lipid were phosphatidylcholine (PC), phosphatidylserine (PS), phosphatidylinositol (PI), phosphatidylethanolamine (PE), and cardiolipin (CL).CL especially was the major phospholipid in n-C11-grown cells. The changes of phospholipidsdepended on the growth phases and substrates in all cases. Although the major fatty acids in all phospholipids except CL were C16 : 0 (1〜58%), C18 : 0 (6〜66%), and C18 : 2 (9〜53%) acids, those of CL were C16 : 0 (27〜36%)and C18 : 2 (46〜54%) as were those of cellular lipids. Fatty acid compositions of phospholipid also depended on the growth substrates in all cases.
社団法人日本生物工学会の論文
1985-06-25