Cryptic species of Curvularia in the culture collection of the Queensland Plant Pathology Herbarium

摘要

Several unidentified specimens of Curvularia deposited in the Queensland Plant Pathology Herbarium were re-examined. Phylogenetic analyses based on sequence data of the internal transcribed spacer region, partial fragments of the glyceraldehyde-3-phosphate dehydrogenase and the translation elongation factor 1-α genes, supported the introduction of 13 novel Curvularia species. Eight of the species described, namely, C. beasleyi >sp. nov., C. beerburrumensis >sp. nov., C. eragrosticola >sp. nov., C. kenpeggii >sp. nov., C. mebaldsii >sp. nov., C. petersonii >sp. nov., C. platzii >sp. nov. and C. warraberensis >sp. nov., were isolated from grasses (Poaceae) exotic to Australia. Only two species, C.lamingtonensis>sp. nov. and C.sporobolicola>sp. nov., were described from native Australian grasses. Two species were described from hosts in other families, namely, C.coatesiae>sp. nov. from Litchichinensis (Sapindaceae) and C.colbranii>sp. nov. from Crinumzeylanicum (Amaryllidaceae). Curvulariareesii>sp. nov. was described from an isolate obtained from an air sample. Furthermore, DNA sequences from ex-type cultures supported the generic placement of C.neoindica and the transfer of Drechsleraboeremae to Curvularia.