ARS | Publication request: Aspergillus waksmanii sp. nov. and Aspergillus marvanovae sp. nov., two new and closely related species in section Fumigati

Submitted to: International Journal of Systematic and Evolutionary Microbiology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: November 8, 2012
Publication Date: N/A

Interpretive Summary: Molds in the Aspergillus fumigatus group include some that survive pasteurization and decay fruit juices, some that cause human lung infections and numerous species that harmlessly decay vegetative materials in soil. Identification of the species with different characteristics and uses is sometimes difficult. With the aid of molecular tools we discovered and described two new species within this group of molds. Barcode DNA sequences were determined and published to facilitate identification of these new species. The new species were also found not to produce mycotoxins. The results will be of value to medical mycologists, biotechnologists, fermentation microbiologists, and academic microbiologists.

Technical Abstract: Two new and phylogenetically closely related species in Aspergillus section Fumigati are described and illustrated. Homothallic A. waksmanii was isolated from New Jersey soil (USA) and is represented by the ex-type isolate NRRL 179T (=CCF 4266= IBT 31900). Aspergillus marvanovae was isolated from water with high boracic acid anions content in Dukovany nuclear power station (Czech Republic). The sexual stage of this species is unknown, but the MAT1-1 locus was successfully amplified suggesting that the species is probably heterothallic and teleomorphic but is represented by only the ex-type isolate CCM 8003T (=CCF 4037=NRRL 62486=IBT 31279). Both species can be distinguished from all previously described species in section Fumigati based on morphology, maximum growth temperature, sequence data from five unlinked loci, and unique secondary metabolites profiles.