Three new Curvularia species from clinical and environmental sources

By

Iturrieta - González, Isabel
Gené, Josepa
Wiederhold, Nathan
García, Dania

Type

Article

Date of Publication

2020

Original Publication

MycoKeys

Volume

68

Pages

1--21

Subjects

Ascomycetes , Dematiaceous hyphomycetes , Phylogeny , Pleosporaceae , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.68.51667

 

Abstract

Curvulariais a Pleosporalean monophyletic genus with a great diversity of species, including relevant phytopathogenic, animal and human pathogenic fungi. However, their microscopic identification is difficult due to overlapping morphological features amongst species. In recent years, multi-locus sequence analysis using the ITS region of the rDNA and fragments of the genesgapdhandtef1 revealed numerous cryptic species, especially in isolates that commonly produced 3-septate conidia. Therefore, based on sequence analysis of the above-mentioned DNA barcodes recommended for species delineation inCurvularia, we propose three novel species,C. paraverruculosa,C. suttoniaeandC. vietnamensis, isolated from soil, human clinical specimens and plant material, respectively, collected in different countries. These new species are morphologically characterised and illustrated in the present study.Curvularia paraverruculosadiffers from its counterparts,C. americanaandC. verruculosa, mainly by its narrower conidia.Curvularia suttoniaeandC. vietnamensisare closely related toC. petersonii, but the former two have larger conidia.