Diaporthalean fungi associated with canker and dieback of trees from Mount Dongling in Beijing, China

By

Zhu, Haiyan
Pan, Meng
Bonthond, Guido
Tian, Chengming
Fan, Xinlei

Type

Article

Date of Publication

2019

Original Publication

MycoKeys

Volume

59

Pages

67--94

Subjects

Ascomycota , Diaporthales , new species , Phylogeny , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.59.38055

 

Abstract

Diaporthales is a fungal order comprising important plant pathogens, saprobes and endophytes on a wide range of woody hosts. It is often difficult to differentiate the pathogens in this order, since both the morphology and disease symptoms are similar among the various species. In the current study, we obtained 15 representative diaporthalean isolates from six tree hosts belonging to plant families Betulaceae, Fagaceae, Juglandaceae, Rosaceae, and Ulmaceae from Mount Dongling in China. Six species were identified residing in four families of Diaporthales (Diaporthaceae, Erythrogloeaceae, Juglanconidaceae and Melanconidaceae). Based on morphological comparison and the phylogenetic analyses of partial ITS, LSU,cal,his3,rpb2,tef1-αandtub2gene sequences, we identified five known species (Diaporthe betulina,D. eres,D. rostrata,Juglamconis oblongaandMelanconis stilbostoma) and one novel species (Dendrostoma donglinensis). These results represent the first study of diaporthalean fungi associated with canker and dieback symptoms from Mount Dongling in Beijing, China.