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Johnalcornia gen. et. comb. nov., and nine new combinations in Curvularia based on molecular phylogenetic analysis

Tan, Yu Pei and Madrid, Hugo and Crous, Pedro W. and Shivas, Roger G. (2014) Johnalcornia gen. et. comb. nov., and nine new combinations in Curvularia based on molecular phylogenetic analysis. Australasian Plant Pathology . ISSN 0815-3191

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Article Link(s): http://dx.doi.org/10.1007/s13313-014-0315-6

Abstract

An examination of ex-type and authentic cultures of 34 species of Bipolaris and Curvularia by phylogenetic analysis of four loci (EF-1α, GAPDH, ITS and LSU) resulted in nine new combinations in Curvularia, as well as new synonymies for some species of Bipolaris and Curvularia. Lectotypes are designated for Bipolaris secalis and Curvularia richardiae, and an epitype is designated for Curvularia crustacea. A new monotypic genus, Johnalcornia, is introduced to accommodate Bipolaris aberrans, which clusters sister to the newly described Porocercospora. Johnalcornia differs morphologically from this taxon by producing distinctive conidia-like chlamydospores as well as comparatively thick-walled, geniculate conidiophores, with conidiogenous cells that have conspicuous scars. Johnalcornia further differs from related genera by forming the second conidial septum in the apical cell.

Item Type:Article
Business groups:Biosecurity Queensland
Subjects:Plant pests and diseases > Plant pathology
Deposited On:15 Sep 2014 02:03
Last Modified:15 Sep 2014 02:03

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