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Updated: Feb 21, 2026

Author Spotlight: Investigating Fungal Pathogenicity Mechanisms in Maize
Published on: September 15, 2023
New species of Talaromyces isolated from maize, indoor air, and other substrates
Stephen W Peterson1, Željko Jurjević2
1a Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture , 1815 North University Street , Peoria , Illinois 61604.
Abstract:
Talaromyces strains isolated from maize seeds and the built environment were examined taxonomically because they could not be identified as previously described species. Using phenotypic analysis, DNA sequencing, and phylogenetic and concordance analyses, the authors discovered and described 10 new species in sect. Islandici and 1 new species in sect. Subinflati. Taxonomic novelties in sect. Islandici are Talaromyces delawarensis, T. herodensis, T. juglandicola, T. kilbournensis, T. novojersensis, T. ricevillensis, T. rogersiae, T. siglerae, T. subtropicalis, and T. tiftonensis, and the species from sect. Subinflata is T. tzapotlensis. The isolate of T. siglerae is unusual in Talaromyces because it produced a Sagenomella-like anamorph, but phylogenetic analysis placed it in Talaromyces. Talaromyces rotundus is known from a few isolates, but searches with internal transcribed spacer (ITS) sequences in GenBank revealed that it is commonly endolichenous with Lasallia hispanica. Talaromyces wortmannii also has a role as an endophyte of the aquatic plant Persicaria amphibia, based on ITS sequence records from GenBank.
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Fungal Group Zygomycota
Fungal Phylum Ascomycota
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