Anderson M S, Dutton M F
Appl Environ Microbiol. 1980 Oct;40(4):706-9. doi: 10.1128/aem.40.4.706-709.1980.
The incorporation of various potential intermediates into versicolorin A by a versicolorin A-accumulating mutant of Aspergillus parasiticus was studied. Both whole mycelium and cell-free extracts of this mutant were able to convert 14C-labeled versiconal hemiacetal acetate to versicolorin A. By the use of a labeled double substrate technique it was shown that two other compounds, versicolorin A hemiacetal and its acetate derivative, were also converted to versicolorin A. It is concluded that one or both of these compounds are intermediates in the biosynthesis of versicolorin A and therefore may possibly be involved in the biogenesis of the aflatoxins.
研究了寄生曲霉的一个积累杂色曲菌素A的突变体将各种潜在中间体掺入杂色曲菌素A的情况。该突变体的完整菌丝体和无细胞提取物都能够将14C标记的杂色曲醛半缩醛乙酸酯转化为杂色曲菌素A。通过使用标记双底物技术表明,另外两种化合物,杂色曲菌素A半缩醛及其乙酸衍生物,也被转化为杂色曲菌素A。得出的结论是,这些化合物中的一种或两种是杂色曲菌素A生物合成的中间体,因此可能参与黄曲霉毒素的生物合成。