Abstract
한국의 남부지방에 소재하는 대부분의 매실 과수원에서 매실궤양병이 발견되었다. 감염된 나무에서는 과실에 검은 반점과 함께 잎에는 갈색 병반을 보이며, 감염된 줄기나 가지의 균열에서 붉은색의 세균 유출액이 흘러나오는 등 일반적으로 알려져 있는 궤양병의 징후가 나타났다. 16지역에서 분리한 38개 균주에 대하여 생리, 생화학적 특성을 (LOPAT과 GATTa실험)조사하고 16S rDNA 및 ITS 염기서열을 분석함으로써 매실궤앙병의 원인 세균을 동정하였다. 이 결과와 병원성 검정을 통해 한국에서 매실에 궤양병을 일으키는 원인 세균은 Pseudomonas syringae pv. morspnnorum임을 알 수 있었다. 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 165 rDNA and ITS sequences. Pathogenicity tests confirmed that bacterial canker of Japanese apricot in Korea is caused by Pseudomonas syringae pv. morsprunorum.
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