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Growth and mycotoxin production by Chaetomium globosum is favored in a neutral pH
Matthew R Fogle1, David R Douglas1, Cynthia A Jumper2
1Department of Microbiology and Immunology, Texas Tech University Health Sciences Center 3601 4th Street Mail stop 6591 Lubbock, TX 79430, USA.
Abstract:
Chaetomium globosum is frequently isolated in water-damaged buildings and produces two mycotoxins called chaetoglobosins A and C when cultured on building material. In this study, the influence of ambient pH on the growth of C. globosum was examined on an artificial medium. This fungus was capable of growth on potato dextrose agar ranging in pH from 4.3 to 9.4 with optimal growth and chaetoglobosin C production occurring at a neutral pH. In addition, our results show that sporulation is favored in an acidic environment.
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