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에키나시아 흰가루병을 일으키는 Podosphaera xanthii 동정

Identification of Podosphaera xanthii as the causal agent of powdery mildew disease affecting Echinacea purpurea in Korea

한국균학회지 2020년 48권 3호 p.337 ~ 343
최인영, 홍선희, 이용호, 신현동,
소속 상세정보
최인영 ( Choi In-Young ) - Jeonbuk National University Department of Agricultural Biology
홍선희 ( Hong Sun-Hee ) - Hankyong National University Department of Plant and Environmental Science
이용호 ( Lee Yong-Ho ) - Hankyong National University Department of Plant and Environmental Science
신현동 ( Shin Hyeon-Dong ) - Korea University Division of Environmental Science and Ecological Engineering

Abstract


During the extensive forays for discovering the biodiversity of phytopathogenic fungi in Korea, powdery mildew-affected purple coneflowers (Echinacea purpurea) were frequently found. Since 2004, nine samples have been deposited in the Korea University Herbarium. The initial symptoms include white, evanescent mycelia and irregular patches on mature leaves.
Mild symptoms in the form of discolored lesions are also noticed on the stem and petal of the affected plants. Based on the morphological characteristics of the anamorph and the phylogenetic analysis of the internal transcribed spacers (ITS) and large subunit (LSU) rDNA sequences, the causal fungus was identified as Podosphaera xanthii. This is the first report that identifies the causal agent of powdery mildew disease affecting purple coneflower in Korea.

키워드

Erysiphaceae; Podosphaera xanthii; Powdery mildew; Purple coneflower

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