Aspergillus parasiticus sterigmatocystin

Feng, G. IT., and Leonard, T. J. (1998). Culture conditions control expression of the genes for aflatoxin and sterigmatocystin biosynthesis in Aspergillus parasiticus and A. nidulans. Appl. Environ. Microbiol. 64, 2275-2277. [Pg.130]

The optically active fungal metabolite sterigmatocystin (15) (Fig. 13.4, see also Sect. 13.2) was first isolated (but not structurally defined) from Aspergillus versicolor by Abou-Zeid in 1953 (590), and has been purified subsequently a number of times from this species (591-594) as well as the related A. parasiticus (595) and A. multicolor (596), and both Emericella venezuelensis (597) and Emericella astellata (598) (both of which also produced aflatoxins). [Pg.156]

A kinetic pulse-labelling technique for the detection of transitory intermediates on the aflatoxin biosynthetic pathway has been described. It has been applied to both sterigmatocystin (85) formation in Aspergillus versicolor amd aflatoxin formation in A. parasiticus. The results are largely in accord with the accepted sequence of intermediates. However, one... [Pg.23]

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