Studies on pathogenic and mycotoxin-producing teleomorphic Aspergillus

Abstract

A survey was conducted on soil-borne teleomorphic Aspergillus, namely Emericella, Neosartorya and Petromyces, from 98 areas in Asia, Middle and Near East and South America. For the 316 isolates assigned to 30 species and 2 varieties of Emericella, the ability to produce sterigmatocystin (STG) was examined by HPLC. As a result, the following STG producers were found: E. acristata, E. corrugata, E. dentata, E. echinulata, E. falconensis, E. foveolata, E. heterothallica, E. nidulans, E. nidulans var. lata, E. parvathecia, E. purpurea, E. quadrilineata, E. rugulosa, E. rugulosa var. lazulina, E. spectabilis and E. striata. For the 82 isolates assigned to 16 species of Neosartorya, 3 species of Chaetosartorya and one species of Sclerocleista the ability to produce tremorgenic mycotoxins, namely fumitremorgin A and B, and verruculogen, was examined. The following tremorgenic mycotoxins producers were found: N. aurata, N. botucatensis, N. fennelliae, N. fischeri, N. glabra, N. hiratsukae, N. quadricincta, N. stramenia and N. udagawae.