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Colletotrichum siamense : A novel leaf pathogen of Sterculia nobilis Smith detected in China
Author(s) -
Zhang Yaowen,
Shen Rong,
Mo Yixue,
Li Qiqin,
Lin Wei,
Yuan Gaoqing
Publication year - 2020
Publication title -
forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 1437-4781
DOI - 10.1111/efp.12575
Subject(s) - biology , ornamental plant , botany , leaf spot , pathogen , pathogenicity , colletotrichum , colletotrichum gloeosporioides , canopy , horticulture , fungal pathogen , microbiology and biotechnology
Sterculia nobilis is an important tropical woody plant with high ornamental and economic value. At present, there are few reports of diseases on this plant. In August 2018, an unknown leaf spot disease was observed on S. nobilis in Nanning, China, affecting the inner leaves of the canopy and causing considerable defoliation. The pathogen was isolated, and pathogenicity tests carried out on detached leaves to verify Koch's postulates. Based on morphological observations and polygenic analyses, the pathogen causing leaf spots on S. nobilis was identified as Colletotrichum siamense .