首页分享八仙花叶斑病病原的分离与鉴定

八仙花叶斑病病原的分离与鉴定

来源：花匠小妙招时间：2024-09-16 19:14

Abstract

Hydrangea macrophylla (Thunb.) Ser. plays an important role in the urban landscape construction since the beautiful flower type and color. In August 2021, a severe outbreak of leaf spot was observed on H. macrophylla in the flower garden of Fengtai district, Beijing. The fungus was isolated by tissue separation me-thod, and its pathogenicity was confirmed based on the Koch’s postulates. According to morphological features and phylogenetic analysis of rDNA-ITS, TUB and RPB2 genes, the pathogen was identified as Epicoccum sorghinum. To our knowledge, this is the first report of E. sorghinum causing leaf spot on H. macrophylla in China, which will provide scientific basis for effective control of the disease on H. macrophylla.

Key words

Hydrangea macrophylla / Epicoccum sorghinum /leaf spot /pathogenicity test /species identification{{custom_keyword}} /

赵娟, 乔广行, 段佳琪, 谭晓倩, 邱艳红, 秦文韬.八仙花叶斑病病原的分离与鉴定[J]. 植物病理学报, 2023, 53(4): 721-724 https://doi.org/10.13926/j.cnki.apps.000817

ZHAO Juan, QIAO Guanghang, DUAN Jiaqi, TAN Xiaoqian, QIU Yanhong, QIN Wentao.Isolation and identification of the pathogen causing leaf spot on Hydrangea macrophylla [J]. Acta Phytopathologica Sinica, 2023, 53(4): 721-724 https://doi.org/10.13926/j.cnki.apps.000817

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