Characterization of the Aspergillus flavus population within an Illinois maize field.
WICKLOW, D.T., McALPIN, C.E. and PLATIS, C.E.
Mycological Research 102 : 263-268.
1998
บทคัดย่อ
An evaluation was made of the genotypic diversity (DNA fingerprinting) of 269 Aspergillus flavus strains, including subpopulations isolated from grain sampled at harvest from a maize field near Kilbourne, Illinois. Eight A. flavus genotypes were isolated from grain samples harvested in different years (1988-1991). Ninety-eight percent of the A. flavus genotypes produced sclerotia and 53% produced aflatoxin. The high genotypic diversity recorded for each subpopulation (grain, maize insects, soil, air), in addition to a limited sample size, precluded any assessment of the relative importance of these subpopulations as sources of A. flavus infective inoculum.