[Lipid metabolism in Aspergillus versicolor (Vuill.) Tiragoschi. Relation to biogenesis of sterigmatocystin].
Aspergillus versicolor is cultivated in a synthetic medium for 22 days. Bioproduction of lipids and sterigmatocystin are compared. The fatty acids of the neutral lipid and polar lipids fractions are mainly: C 16:0, C 18:0, C 18:1, C 18:2, C 18:3. Maximal yields of dry weight, neutral lipids and sterigmatocystin occur, respectively, on the 4th, the 7th and the 20th days. These results and their comparison with other works emphasize that a fall of concentration in lipids precedes the phase of highest concentration in secondary metabolites of polyketide type; it appears that fats and particularly palmitic acid are present in biogenesis of these derivatives.
D001230:Aspergillus / Q000254:growth & development / Q000378:metabolism*; D005227:Fatty Acids / Q000096:biosynthesis; D008055:Lipids / Q000096:biosynthesis*; D010743:Phospholipids / Q000096:biosynthesis; D013241:Sterigmatocystin / Q000096:biosynthesis*; D014966:Xanthenes / Q000096:biosynthesis*
D005227:Fatty Acids; D008055:Lipids; D010743:Phospholipids; D014966:Xanthenes; D013241:Sterigmatocystin
Metabolisme lipidique chez l'Aspergillus versicolor (Vuill.) Tiraboschi. Relations avec la biogénèse de la stérigmatocystine