Various species of Absidia, Aspergillus, Cunninghamella, Trichothecium, Penicillium, and Phanerochaete were found to transform rotenone to one or more metabolites. Two biotransformation products were isolated from a preparative-scale incubation of rotenone with Cunninghamella blakesleeana and identified as 1',2'-dihydro-1',2'-dihydroxyrotenone and 3'-hydroxyrotenone (amorphigenin). The catalyti...

Nitrogen heterocyclic compounds, especially carbazole, quinolone, and pyridine are common types of environmental pollutants. Carbazole has a toxic influence on living organisms, and the knowledge of its persistence and bioconversion in ecosystems is still not complete. There is an increasing interest in detoxification of hazardous xenobiotics by microorganisms. In this study, the ability of thr...

Onychomycosis is a fungal infection of nails seen frequently in immune competent and immune compromised patients due to dermatophytes, Candida spp., Fusarium spp., Scopulariopsis brevicaulis, Penicillium spp., and Aspergillus spp. We report a case of onychomycosis in a young immunocompetent male who presented onycholysis of a solitary nail without inflammation. The etiological agent was diagnos...

Therapeutic potential of nandrolone and its derivatives against leishmaniasis has been studied. A number of derivatives of nandrolone (1) were synthesized through biotransformation. Microbial transformation of nandrolone (1) with Cunninghamella echinulata and Cunninghamella blakesleeana yielded three new metabolites, 10β,12β,17β-trihydroxy-19-nor-4-androsten-3-one (2), 10β,16α,17β-trihydroxy-19...

A preparative-scale regiospecific conversion of 10,11-dimethoxyaporphine to isoapocodeine was conducted with Cunninghamella elegans ATCC 9245. This biotransformation proceeded quantitatively in suspensions and was pH dependent. The influence of antioxidants on the conversion was studied. Attempts to preserve the activity of isolated C. elegans cells by a number of methods were unsuccessful.

(-)-Alloisolongifolene (1) is a structural analogue of the naturally occurring longifolene. The microbial transformation of (-)-alloisolongifolene (1) by Cunninghamella elegans afforded two new metabolites, 3a-hydroxyalloisolongifolol (2) and 13-hydroxyalloisolongifolol (3). The structures of the metabolites were deduced on the basis of their spectral data, including 1D and 2D NMR, IR and HREIMS.

Cunninghamella is a member of the Family Cunninghamellaceae and of the Order Mucorales. Cunninghamella is an opportunistic fungi that rarely causes invasive mucormycosis, however, it can lead to a fatal infection in immunocompromised patients. C. bertholletiae is the only species that has been established to be a human pathogen. Clinical presentations vary from localized infection to multifocal...