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Type: Article
Published: 2019-02-18
Page range: 186–196
Abstract views: 29
PDF downloaded: 3

A new species of Phyllachora (Phyllachoraceae, Phyllachorales) on Phyllostachys heteroclada from Sichuan, China

College of Forestry, Sichuan Agricultural University, Wenjiang District, Huiming Road 211, Chengdu 611130, China Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
Forestry Research Institute, Chengdu Academy of Agricultural and Forestry Sciences, Nongke Road 200, Chengdu 611130, China
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
Landcare Research New Zealand, Private Bag 92170, Auckland Mail Centre, Auckland 1142, New Zealand
Fungi 1 new species Phyllachora stem tar spot fungus morphology phylogeny

Abstract

Phyllachora species usually cause leaf tar spot disease associated with living leaves in various hosts. In this study, a sample of stem tar spot was collected from a Phyllostachys heteroclada forest in Ya’an City, Sichuan Province, China. Here we introduce a new taxon in the genus Phyllachora through using morphology, information on host and multigene phylogeny of three genes (LSU, SSU, ITS). Within the family Phyllachoraceae, members of the genus Phyllachora form five groups with maximum likelihood and Bayesian phylogenies. The new species Phyllachora heterocladae clusters with eight undetermined Phyllachora species in a highly supported clade and morphologically differs from other similar species in having relatively long asci with a noticeable apical ring, fusiform to ellipsoid ascospores with many guttules and a thick gelatinous sheath and botuliform or falciform spermatia with 1-septate or aseptate.