Bacterial Canker of Japanese Apricot (Prunus mume) Caused by Pseudomonas syringae pv. morsprunorum

Kim, Doo Young; Han, Hyo Shim; Koh, Young Jin; Jung, Jae Sung

Research in Plant Disease 2005;11(2):135-139.
Published online December 30, 2005.

Pseudomonas syringae pv. morsprunorum에 의한 매실의 세균성궤양성

김두영, 한효심, 고영진, 정재성

Bacterial Canker of Japanese Apricot (Prunus mume) Caused by Pseudomonas syringae pv. morsprunorum

Doo Young Kim, Hyo Shim Han, Young Jin Koh, Jae Sung Jung

Abstract

Bacterial canker of Japanese apricot (Prunus mume Sieb. et Zucc.) was found in all orchards located at southern area of Korea. Typical symptoms were characterized by dark spots formed on fruits, brown lesions on leaves, and bacterial exudate oozed out of the cracked bark of diseased tree. Thirty-eight isolates from 16 different areas were identified on the basis of biochemical and physiological characteristics (LOPAT and GATTa test) and also on the basis of 16S rDNA and ITS sequences. Pathogenicity tests confirmed that bacterial cankerof Japanese apricot in Korea is caused by Pseudomonas syringae pv. morsprunorum.

Key Words: Bacterial canker, Japanese apricot, Prunus mume, Pseudomonas syringae pv. morsprunorum