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Issue: Vol. 491 No. 1: 17 March 2021
Type: Article
Published: 2021-03-17
DOI: 10.11646/phytotaxa.491.1.3
Page range: 23–34
Abstract views: 33
PDF downloaded: 1

Stagonosporopsis rhizophilae sp. nov. (Didymellaceae, Pleosporales), a new rhizospheric soil fungus associated with Populus deltoides Marsh

"State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry" "Nanjing Forestry University" "Research Institute of Subtropical Forestry, Chinese Academy of Forestry"
"State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry" "Nanjing Forestry University" "Research Institute of Subtropical Forestry, Chinese Academy of Forestry"
"Instituto Hispano-Luso de Investigaciones Agrarias (CIALE), University of Salamanca"
"State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry" "Research Institute of Subtropical Forestry, Chinese Academy of Forestry"
"State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry" "Research Institute of Subtropical Forestry, Chinese Academy of Forestry"
Dark septate endophytes intraspecific variations molecular phylogeny root-associated fungi symbiosis taxonomy Fungi

Abstract

In this work we describe Stagonosporopsis rhizophilae sp. nov. (Didymellaceae, Pleosporales, Ascomycota), a new species isolated from the rhizospheric soil of Populus deltoides Marsh. Phylogenetic analyses based on combined multilocus sequences of internal transcribed spacers (ITS: ITS1, 5.8S, ITS2), and partial sequences of the large subunit 28S nrDNA region (LSU), β-tubulin (TUB), and RNA Polymerase II second-largest subunit (RPB2) clearly place this species within the genus Stagonosporopsis but distinguishes it from all known and closely related species such as S. nemophilae. Stagonosporopsis rhizophilae sp. nov. can also be differentiated from S. nemophilae by morphological characters and by the negative response of the NaOH spot test for the production of metabolite E.