Abstract
In the course of a screening for new metabolites from fungi we isolated a substance with antimicrobial activity from cultures of Aspergillus duricaulis (CBS 481.65) (Tü 679). It was antagonized by putrescine, spermidine, spermine, arginine, citrulline, lysine, ornithine, in higher concentration by asparagine and glutamine too. The effect of ethylenediaminetetraacetate on the susceptibility of Streptomyces viridochromogenes (Tü 57) and Bacillus subtilis ATCC 6051 to this antibiotic has been studied.
The substance was characterized and identified as cyclopaldic acid.
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Abbreviations
- MIC:
-
minimum inhibitory concentration
- tlc:
-
thinlayer chromatography
References
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Brillinger, G.U., Heberle, W., Weber, B. et al. Metabolic products of microorganisms. Arch. Microbiol. 116, 245–252 (1978). https://doi.org/10.1007/BF00417847
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DOI: https://doi.org/10.1007/BF00417847