PMID: 2112577May 1, 1990Paper

Aflatoxin production by entomopathogenic isolates of Aspergillus parasiticus and Aspergillus flavus

Journal of Invertebrate Pathology
J Drummond, D E Pinnock

Abstract

Fourteen isolates of Aspergillus parasiticus and 2 isolates of Aspergillus flavus isolated from the mealybug Saccharicoccus sacchari were analyzed for production of aflatoxins B1, B2, G1, and G2 in liquid culture over a 20-day period. Twelve Aspergillus isolates including 11 A. parasiticus and 1 A. flavus produced aflatoxins which were extracted from both the mycelium and culture filtrate. Aflatoxin production was detected at day 3 and was detected continually for up to day 20. Aflatoxin B1 production was greatest between 7 and 10 days and significantly higher quantities were produced by A. flavus compared to A. parasiticus. Aflatoxin production was not a stable trait in 1 A. parasiticus isolate passaged 50 times on agar. In addition to loss of aflatoxin production, an associated loss in sporulation ability was also observed in this passaged isolate, although it did maintain pathogenicity against S. sacchari. An aflatoxin B1 concentration of 0.16 micrograms/mealybug (14.2 micrograms/g wet wt) was detected within the tissues of infected mealybugs 7 days after inoculation. In conclusion, the ability of Aspergillus isolates to produce aflatoxins was not essential to the entomopathogenic activity of this fungus against its host S. ...Continue Reading

Citations

Sep 14, 2007·Food Additives and Contaminants·Bruce W Horn
May 11, 2010·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·M DonnerP J Cotty
Aug 8, 2008·Bioscience, Biotechnology, and Biochemistry·Kozue AnzaiKatsuhiko Ando
Mar 26, 2003·Applied Microbiology and Biotechnology·D BhatnagarT E Cleveland
Aug 20, 2005·Journal of Applied Microbiology·K C EhrlichP J Cotty
Aug 18, 2018·Journal of Food Protection·Paul W KachapululaPeter J Cotty

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Aspergillosis is the name given to a wide variety of diseases caused by infection by fungi of the genus Aspergillus. Aspergillosis occurs in chronic or acute forms which are clinically very distinct. Most cases of acute aspergillosis occur in patients with severely compromised immune systems. Chronic colonization or infection can cause complications in people with underlying respiratory illnesses. Discover the latest research on aspergillosis here.

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Aspergillosis is the name given to a wide variety of diseases caused by infection by fungi of the genus Aspergillus. Aspergillosis occurs in chronic or acute forms which are clinically very distinct. Most cases of acute aspergillosis occur in patients with severely compromised immune systems. Chronic colonization or infection can cause complications in people with underlying respiratory illnesses. Discover the latest research on aspergillosis here.