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Diaporthalean fungi associated with canker and dieback of trees from Mount Dongling in Beijing, China.
MycoKeys ( IF 3.3 ) Pub Date : 2019-10-16 , DOI: 10.3897/mycokeys.59.38055 Haiyan Zhu 1 , Meng Pan 1 , Guido Bonthond 2 , Chengming Tian 1 , Xinlei Fan 1
MycoKeys ( IF 3.3 ) Pub Date : 2019-10-16 , DOI: 10.3897/mycokeys.59.38055 Haiyan Zhu 1 , Meng Pan 1 , Guido Bonthond 2 , Chengming Tian 1 , Xinlei Fan 1
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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-α and tub2 gene sequences, we identified five known species (Diaporthe betulina, D. eres, D. rostrata, Juglamconis oblonga and Melanconis 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.
更新日期：2019-11-01
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