Effects of soil moisture and temperature on preharvest invasion of peanuts by the Aspergillus flavus group and subsequent aflatoxin development.

Applied and Environmental Microbiology
R A HillT H Sanders

Abstract

Four soil temperature and moisture treatment regimens were imposed on Florunner peanuts 94 days after planting in experimental plots in 1980. At harvest (145 days after planting), the incidence of the Aspergillus flavus group and the aflatoxin concentration were greatest in damaged kernels. Extensive colonization of sound mature kernels (SMK) by the A. flavus group occurred with the drought stress treatment (56% kernels colonized); colonization was less in the irrigated plot (7%) and the drought stress plot with cooled soil (11%) and was intermediate in the irrigated plot with heated soil (26%). Aflatoxin was virtually absent from SMK with the last three treatments, but it was found at an average concentration of 244 ppb (ng/g) in drought-stressed SMK. Colonization of SMK by the A. flavus group and aflatoxin production were greater with hot dry conditions. Neither elevated temperature alone nor drought stress alone caused aflatoxin contamination in SMK. When the ratio of SMK colonized by A. flavus compared with A. niger was greater than 19:1, there was aflatoxin contamination, but there was none if this ratio was less than 9:1. Irrigation caused a higher incidence of A. niger than drought did. This may have prevented the aflato...Continue Reading

References

Nov 1, 1975·Journal of Agricultural and Food Chemistry·C E Holaday, J Lansden
Mar 1, 1949·The Annals of Applied Biology·D SNOW

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Citations

Feb 12, 2017·Oncology Reports·Mowaffaq Adam Ahmed AdamDoblin Anak Sandai
Nov 20, 2008·Journal of Integrative Plant Biology·Baozhu GuoBrian T Scully
Jan 17, 2013·Critical Reviews in Food Science and Nutrition·G J B GnonlonfinL Brimer
Mar 1, 2006·Mycotoxin Research·K C Ehrlich
Jan 15, 1987·Experientia·E D Weinberg
Feb 21, 2008·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Guner OzayAysun Yilmaz
Jul 31, 2013·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Öner Canavar, Mustafa Ali Kaynak
Jan 24, 2014·Proceedings. Biological Sciences·Gareth J WilliamsThierry M Work
Oct 17, 2017·Journal of Cellular Physiology·Mohammad MohajeriAmirhossein Sahebkar
Dec 1, 1983·Applied and Environmental Microbiology·J W Dorner
Jan 1, 1984·Applied and Environmental Microbiology·R A HillO L Shotwell
Mar 1, 1983·Applied and Environmental Microbiology·J A Lansden, J I Davidson
Jun 3, 2021·Journal of Fungi·Rahim KhanNik Iskandar Putra Samsudin
Feb 8, 2013·Journal of Agricultural and Food Chemistry·Victor S Sobolev

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