ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Mode of action of pesticides on aflatoxin biosynthesis and oxidase system activity.

HASAN, H.A.H.

Microbiological Research 154 : 95-102.

1999

บทคัดย่อ

The effects of nine pesticides on the biosynthesis of aflatoxin and oxidase activity in wild-type Aspergillus flavus and mutant strains of A. parasiticus avrl and A. parasiticus verl were investigated.  In A. parasiticus, phosphonic acid derivative reduced the formation of AFB₂, but B_1,  G₁ and G₂ and anthraquinones (versicolorin A, versiconal hemiacetal acetat and averufin) accumulated.  Phosphorothioic acid derivatives reduced the formation of AFB₂, but B₁ and G₁ and G₂ and anthraquinones (versicolorin A, versiconal hemiacetal acetat and averufin) accumulated.  Phosphorothioic acid derivatives reduced the formation of AFB₂, G₂ but B₁ and G₁ and anthraquinones accumulated.  Phosphorodithioic acid derivatives blocked AFB₂, reduced B₁ and G₂ but G₁ and anthraquinones accumulated.  Phosphoric acid derivative inhibited the formation of all aflatoxins, versicolorin A and versiconal hemiacetal acetate but averufin accumulated.  The phenylurea derivatives inhibited all aflatoxin but anthraquinones accumulated.  On the other hand, the dicarboximide derivative inhibited the whole pathway in the mutant strains of A. parasiticus.