Seifertia shangrilaensis sp. nov. (Melanommataceae), a new species from Southwest China

Abstract

A new Seifertia species was isolated from hanging rachides of Rhododendron decorum in Yunnan Province, Southwest China. The new taxon was compared with the type species, S. azalea and differs in having wider conidiophores, with hyaline to subhyaline and smaller conidia, while S. azalea has olive-brown to brown, rarely branched conidiophores, and pale brown or olive-brown, very rarely septate conidia. Phylogenetic analyses of combined LSU, SSU and TEF1-α sequence data show that S. shangrilaensis forms a robust clade with S. azalea nested among the species of Melanommataceae in the order Pleosporales. A new species, S. shangrilaensis is introduced in this study, and Seifertia should be placed in Melanommataceae (Pleosporales, Dothideomycetes) based on phylogenetic analysis. Description and illustration of Seifertia shangrilaensis are provided with notes and its introduction is supported by molecular data.

Genera of phytopathogenic fungi: GOPHY 3

“…(2007)CPC 35017MK540034MK539964MK540166Present study Sei. shangrilaensis MFLUCC 16-0238 T KU954100–KU954101Li et al. (2016b)1CPC: Culture collection of Pedro Crous, housed at Westerdijk Fungal Biodiversity Institute; DAOM: Plant Research Institute, Department of Agriculture (Mycology), Ottawa, Canada; MFLUCC: Mae Fah Luang University Culture Collection, Chiang Ria, Thailand.…”

“…This genus, which is relatively poorly studied, was recently placed in Melanommataceae by Li et al. (2016b), when they introduced the second species belonging to Seifertia , Sei.…”

“…References : Partridge & Morgan-Jones 2002 (morphology), Glawe & Hummel 2006 (pathogenicity), Seifert et al., 2007, Li et al., 2016b (morphology and phylogeny).…”

Fungal diversity notes 1151–1276: taxonomic and phylogenetic contributions on genera and species of fungal taxa

“…Notes: The family Melanommataceae was introduced by Winter (1885) with Melanomma Nitschke ex Fuckel as the type genus. The family is characterised by globose or depressed perithecial ascomata, trabeculate pseudoparaphyses, bitunicate and fissitunicate asci, pigmented and phragmosporous ascospores (Hyde et al 2013;Tian et al 2015;Li et al 2016bLi et al , 2017aTennakoon et al 2018a). Most species of this family are saprobic or hyperparasitic and occur mainly on twigs or bark of various woody plants from terrestrial, marine or freshwater habitats, and are widespread in temperate and subtropical regions (Zhang et al 2012;Hyde et al 2013;Tian et al 2015).…”

“…Tian et al (2015) accepted 20 genera and provided the most detailed of morphological and multi-gene (LSU, SSU, TEF1-α and RPB2) phylogenetic data for this family. Many new species and genera have been added to this family (Li et al 2016b(Li et al , 2017aAlmeida et al 2017;Jaklitsch and Voglmayr 2017;Tibpromma et al 2017;Tennakoon et al 2018a;Pem et al 2019c). The family includes 33 genera (Hongsanan et al in prep.…”