Variations du contenu lipidique occasionneacute;es par la carence en pyridoxine du milieu nutritif deCeratocystis ulmi

摘要

Pyridoxin deficiency of the synthetic growth medium results on four of the five strains of the studiedCeratocystis ulmiin an increase (6.9 to 18.8) of the lipid content of the mycelium. This increase mainly affects the neutral lipid fraction. The analysis of fatty acids shows a significative decrease, both in the neutral and the polar lipid fraction, of the polyunsaturated fatty acid content, and in some cases the total disappearance of the linolenic acid.