The arizonins, a novel complex of antibiotics related to kalafungin, were discovered in the fermentation broth of Actinoplanes sp. AB660D-122. Comparative taxonomic studies indicated that the culture is a new species and therefore has been designated Actinoplanes arizonaensis sp. nov. Two members of the complex, arizonins A1 and B1, exhibit moderate to potent in vitro antimicrobial activity against pathogenic strains of Gram-positive bacteria.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/3182401