Characterization of Pseudofusicoccum Species from Diseased Plantation-Grown Acacia mangium , Eucalyptus spp., and Pinus massoniana in Southern China.

Fungi from () have been reported as pathogens, endophytes, or saprophytes from various woody plants in different countries. Recently, isolates were obtained from the dead twigs of , spp., , and in Guangdong, Guangxi, Hainan, and Fujian Provinces in southern China. This study aimed to understand the diversity, distribution, and virulence of these species on these trees. A total of 126 isolates were obtained, and the incidences of (percentage of trees that yielded ) on . , . , spp., and were 21%, 2.6%, 0.5%, and 0%, respectively. Based on the internal transcribed spacer (ITS), translation elongation factor 1-alpha (), and β-tubulin () loci, 75% of the total isolates were identified as . , and the remaining isolates were identified as . . For . , the majority of isolates (83%) were from . , and the rest were from . (14%) and spp. (3%). Similarly, the proportion of isolates of . from . , . , and spp. were 84%, 13%, and 3%, respectively. Inoculation trials showed that the two species produced expected lesions on the tested seedlings of . , . × . , and . . This study provides fundamental information on associated with diseases in main plantations in southern China.