Abstract
The genus Plectosphaerella is the largest genus in the family Plectosphaerellaceae. Some species are plant pathogens, whereas others are soil-borne. Seven Plectosphaerella isolates were collected from various locations in the southwest of China. Using multi-locus phylogenetic (LSU, ITS, EF1α, RPB2) analyses combined with morphological characteristics, two new species, Plectosphaerella guizhouensissp. nov. and Plectosphaerella nauculasporasp. nov. are described, illustrated and compared with related species.
Highlights
The genus Plectosphaerella Kleb., established in 1929, is the largest genus in the family Plectosphaerellaceae (Sordariomycetes, Glomerellales) (Giraldo and Crous 2019), consisting of some plant pathogen and soil-borne species
Our isolates CGMCC 3.19654 and CGMCC 3.19655 clustered with other Plectosphaerella plurivora isolates from CBS in a single subclade supported by Bayesian Inference (BI) pp = 0.92
Multi-locus phylogenetic analyses in combination with morphological data were used for identification
Summary
The genus Plectosphaerella Kleb., established in 1929, is the largest genus in the family Plectosphaerellaceae (Sordariomycetes, Glomerellales) (Giraldo and Crous 2019), consisting of some plant pathogen and soil-borne species. There were only five species in the genus Plectosphaerella, i.e. P_cucumerina (Lindf.) W. Carlucci et al (2012) transferred all species of the anamorphic genus Plectosporium M.E. Palm, W. Several new species and new combinations were introduced and transferred to the genus. The genus Plectosphaerella contains 14 accepted species (Carlucci et al 2012, Liu et al 2013, Crous et al 2015, Su et al 2017, Wijayawardene et al 2017, Giraldo and Crous 2019, Phookamsak et al 2019)
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