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Lipid metabolism of Pleurotus sajor caju
Author(s) -
NAIR N. G.,
HOLLEY M. P.,
SONG C. H.,
CHO K. Y.
Publication year - 1990
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1990.tb06628.x
Subject(s) - mycelium , biology , pleurotus , biosynthesis , sterol , botany , biochemistry , lipid metabolism , food science , enzyme , cholesterol , mushroom
Summary The biosynthesis of lipids in the mycelium and sporophore of Pleurotus sajor caju was studied. Whereas in the mycelium the biosynthesis of lipids was directly primarily towards storage (e.g. tri‐acylglycerols), in the sporophore it was directed towards structural components (e.g. sterols). The incorporation of 14 C precursors into non‐polar and polar lipid fractions was generally similar for 14 C acetate, 14 C palmitate, 14 C oleate and 14 C linoleate in the case of mycelium and sporophore. It appears that linoleic acid was utilised as a source of acetate for lipid biosynthesis in the sporophore. A significantly higher incorporation of label was seen in sporophore sterol than in mycelial sterol. Malate dehydrogenase activity increased in the mycelium grown in the presence of lipids. Lipase of P. sajor caju was inducive. The growth of P. sajor caju was enhanced by increased lipid utilisation. The implications of these results on commercial cultivation of this fungus are discussed.