Research in Plant Disease 2005;11(1):80-84.
Published online June 30, 2005.
Pseudomonas syringae pv. morsprunorum에 의한 양앵두나무 궤양병
김경희, 노일섭, 허재선, 이승돈, 고영진
Bacterial Canker of Sweet Cherry (Prunus avium L.) Caused by Pseudomonas syringae pv. morsprunorum
Gyoung Hee Kim, Ill Sup Nou, Jae Seoun Hur, Seung Don Lee, Young Jin Koh
Bacterial canker of sweet cherry (Prunus avium L.) was observed in farmers`` orchards in Goesan, Chungbuk in 2003. Typical canker symptoms occurred on the branches or twigs of sweet cherry in early spring and bacterial exudates oozed out of the cracked barks of diseased trees. Watersoaked brown symptoms appeared on the leaves and severe infection caused thorough defoliation on the branches or twigs of sweet cherry. When severely infected branches or twigs were cut, irregular and rusty-colored symptoms in sapwood and heartwood were clearly found, indicating that they can serve as specific symptoms of bacterial canker of sweet cherry. The causal bacterium responsible for the symptoms was isolated purely from the infected sapwood of sweet cherry. Based on its morphological, physiological and biochemicalcharacteristics, the causal bacteriumwas identified as Pseudomonas syringae pv. morsprunorum. The bacterium was pathogenic on sweet cherry and Japanese apricot, but not on peach, cherry, and kiwifruit. It is proposed that the disease be named as bacterial canker of sweet cherry.
Key Words: Bacterial canker, Prunus avium, Pseudomonas syringae pv. morsprunorum, Sweet cherry

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