Morpho-phylogenetic evidence reveals two new species and two new host records of Diaporthe (Diaporthales, Diaporthaceae) from Phellodendron chinense in Sichuan, China

By

Li, Xinyue
Xu, Xiu-Lan
Xiang, Shasha
Liu, Feng
Wang, Feihu
Jiang, Xuejing
Liu, Ying-Gao
Yang, Chun-Lin

Type

Article

Date of Publication

2025-10-15

Original Publication

MycoKeys

Volume

123

Pages

205--233

Subjects

Ascomycota , coelomycetous asexual morph , Phylogeny , sapbrobic fungi , Sordariomycetes , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.123.162866

 

Abstract

Diaporthe species are globally distributed with a wide variety of plant hosts inhabiting diverse ecological niches and functioning as endophytes, saprobes and pathogens. Numerous species in this genus are significant pathogens responsible for a wide range of diseases in both agricultural and forest plants. In this study, eight Diaporthe strains were isolated from branches of Phellodendron chinense collected in Sichuan Province, China. Using multi-locus phylogenetic analysis of five gene regions (ITS, tef1-α, tub2, cal and his3), along with morphological characterisation, two novel species — D. phellodendri and D. leshanensis — are introduced in the present study and two new host associations were recorded for D. eucommiigena and D. litseae. This study contributes to the growing understanding of Diaporthe diversity and host associations in China.