Investigations of carotenoids in fungi. III. Fructifications of some species from the genus Suillus

Using column and thin-layer chromatography the occurrence of carotenoids and their content was determined in fructifications of 5 species from the genus Suillus. 21 carotenoids were found, among them 3 which had not hitherto been detected in fungi (auroxanthin, 3,4-dihydroxy-α-carotene and myxoxantophyll). Moreover quantitative and qualitative differences were found in the content of carotenoids in fructifications of Boletus luteus which may be of importance in their taxonomy.