A new species and a new Chinese record of Diplodia associated with canker disease on loquat in China
The genus Diplodia(Botryosphaeriales,Botryosphaeriaceae)comprises many important pathogens or latent pathogens associated with stem canker,shoot blights and die-back of plants across a wide geographic distribution.In this study,a total of 13 Diplodia isolates was obtained from diseased branches of loquat(Eriobotrya j aponica)trees in Yunnan Province.Based on phylogenetic analyses of ITS,tef1 and tub2 loci,combined with morphological characteristics,two species were identified,D.mutila new to China and D.pipa sp.nov.The pathogenicity tests conducted on potted loquat trees demonstrated that both species can infect loquat trees,with D.mutila exhibiting a higher level of virulence as compared with D.pipa.To our knowledge,this is the first report of Diplodia from loquat trees in China.
Botryosphaeriaceaetaxonomyplant pathogenpathogenicityfruit treenew species
万方数据
维普
