Altered bacterial culture density following exposure to aflatoxins

Autor:	Gerald C. Llewellyn, L. Bruce Weekley, T. Daniel Kimbrough, Peter C. Sherertz
Rok vydání:	1989
Předmět:	Aflatoxin Microbiological culture Inoculation Bacillus cereus Micrococcus Bioengineering Biology biology.organism_classification Applied Microbiology and Biotechnology Proteus mirabilis Microbiology Cereus Bacteria Biotechnology
Zdroj:	Journal of Industrial Microbiology. 4:275-278
ISSN:	1476-5535 0169-4146
DOI:	10.1007/bf01577350
Popis:	Eight species of bacteria were incubated in culture media containing 10 μg/ml aflatoxin B1 (AFB1), aflatoxin B2 (AFB2), or aflatoxin G2 (AFG2). Their culture density at 20°C was determined at four and eight days (d) after inoculation. In all species of bacteria studied (Bacillus cereus, Proteus mirabilis, Erysipylothrix rusiopathie (insidiosa), Streptococcus fecalis, Staphylococcus epidermis, Klebsiella pneumoniae, Micrococcus spp., andEscherichia coli), AFB1, AFB2 and AFG2 substantially decreased culture sizes at 4 d, but not at 8 d. InB. cereus andP. mirabilis, culture sizes were increased by AFB1, AFB2, and AFG2 at 8 d post inoculation. These results indicate that AFB1, AFB2, and AFG2 suppressed initial growth of these species in vitro, while later growth in some species was either unaltered or enhanced.
Databáze:	OpenAIRE
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