Potentially harmful secondary metabolites produced by indoor Chaetomium species on artificially and naturally contaminated building materials

Indoor Air
I DošenB Andersen

Abstract

The presence of the fungal genus Chaetomium and its secondary metabolites in indoor environments is suspected to have a negative impact on human health and well-being. About 200 metabolites have been currently described from Chaetomium spp., but only the bioactive compound group, chaetoglobosins, have been screened for and thus detected in buildings. In this study, we used a liquid chromatography high-resolution mass spectrometry approach to screen both artificially and naturally infected building materials for all the Chaetomium metabolites described in the literature. Pure agar cultures were also investigated to establish differences between metabolite production in vitro and on building materials as well as in comparison with non-indoor reference strains. On building materials, six different chaetoglobosins were detected in total concentrations of up to 950 mg/m2 from Chaetomium globosum along with three different chaetoviridins/chaetomugilins in concentrations up to 200 mg/m2 . Indoor Chaetomium spp. preferred wood-based materials over gypsum, both in terms of growth rate and metabolite production. Cochliodones were detected for the first time on all building materials infected by both C. globosum and Chaetomium elatum and ...Continue Reading

References

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Citations

Sep 14, 2016·Journal of Microbiological Methods·Anna M LewińskaJakob B Hoof
Oct 17, 2018·Rapid Communications in Mass Spectrometry : RCM·Jacob P WalshMark W Sumarah
Jun 4, 2016·Analytical and Bioanalytical Chemistry·Ina DošenKristian Fog Nielsen
Mar 13, 2020·Journal of Natural Products·Min Jee KimDongho Lee

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