Changes in enzyme activities and aflatoxin elaboration in sorghum genotypes following Aspergillus parasiticus infestation.
RATNAVATHI, C.V. and SASHIDHAR, R.B.
Journal of the Science of Food and Agriculture 80:1713-1721.
2000
บทคัดย่อ
Six sorghum genotypes (red-AON 486, IS 620; yellow – LPJ. IS 17 779; white SPV 86, SPV 462) were inoculated with a toxigenic strain of Aspergillus parasiticus and changes in the activities of various hydrolytic enzymes and aflatoxin production were evaluated. The alpha-and betamylase activities were positively correlated to aflatoxin production. The total aflatoxins produced were lower in red genotypes than in yellow and white genotypes. AFB1, B2, G1 and G2 were present in five genotypes (IS620, LPJ, IS 17 779, SPV 86 and SPV 462) at all the stages of infection but aflatoxin could not be detected in the red genotype AON 486 on day 3 after infection. White genotypes SPV 86 and SPV 462 showed maximal aflatoxin total production on day 6 after infaction.