Alternaria arborescens and A. italica Causing Leaf Blotch on Celtis julianae in China.

ABSTRACT: Celtis julianae Schneid. is widely planted as a versatile tree species with ecological and economic significance. In September 2022, a leaf blotch disease of C. julianae was observed in Nanjing, Jiangsu, China, with an infection incidence of 63%. The disease led to severe early defoliation, significantly affecting the ornamental and ecological value of the host tree. The accurate identification of pathogens is imperative to conducting further research and advancing disease control. Koch's postulates confirmed that the fungal isolates (B1-B9) were pathogenic to C. julianae. The morphology of the characteristics of the pathogen matched those of Alternaria spp. The internal transcribed spacer region (ITS), large subunit (LSU) and small subunit (SSU) r

SUBMITTER: Liao YC 

PROVIDER: S-EPMC10489861 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature