Spore lipids and germination in Agaricus bisporus

✍ Scribed by O'Sullivan, Joseph ;L�sel, Dorothy Margarita

• Book ID: 104760546
• Publisher: Springer-Verlag
• Year: 1971
• Weight: 367 KB
• Volume: 80
• Category: Article
• ISSN: 0003-9276
• DOI: 10.1007/bf00406215

✦ Synopsis

The effects of a number of organic compounds on the germination of spores of Agaricus bisporus (J. Lange) Pilat has been investigated and a preliminary analysis of spore lipids carried out. Germination was stimulated by isocaproic acid but not by straight-chain C5 to C~1 fatty acids or by the amino acids leucine and iso-leucine. Cholesterol at a concentration of 1 ppm was inhibitory. The lipid reserve of the spore comprised mono-, di-and tri-glyeerides, free fatty acids and sterols. The phospholipid fraction was unusually small and contained a lecithin and cephalin fraction, phosphatidylinositol and cardiolipin phosphatidic acid; phosphatidylcholine being the most prominent component. The role of Iipids and various germination stimulants in the physiology of A. bisporus spores is