Aflatoxin production in cultures of Aspergillus flavus incubated in atmospheres containing selected cotton leaf-derived volatiles.
Aspergillus flavus, in solid culture, was exposed to individual selected, commercially obtained volatile compounds that were similar to volatile cotton leaf-derived components. The radial growth pattern of A. flavus and the production of aflatoxin were determined on these volatile exposed cultures. The most bioactive compounds C6-C9 alkenals, completely inhibited the growth of the fungus. Unexpected results demonstrated that 3-methyl-1-butanol and 3-methyl-2-butanol inhibited A. flavus growth by 20% but increased production of aflatoxin B1 by 1.5 to 2-fold. Other relationships of growth and aflatoxin production resulting from exposure to the bioactive volatiles are discussed.
Zeringue
H J
HJ
U.S. Dept. Agriculture, ARS, SRRC, New Orleans, LA 70179.
McCormick
S P
SP
D016604:Aflatoxin B1; D000348:Aflatoxins / Q000096:biosynthesis*; D000438:Alcohols / Q000494:pharmacology*; D000447:Aldehydes / Q000494:pharmacology*; D001231:Aspergillus flavus / Q000187:drug effects* / Q000254:growth & development; D002273:Carcinogens; D003368:Gossypium; D007659:Ketones / Q000494:pharmacology*
D000348:Aflatoxins; D000438:Alcohols; D000447:Aldehydes; D002273:Carcinogens; D007659:Ketones; D016604:Aflatoxin B1