Alternaria tenuissima에 의한 칡 점무늬병 |
김자문, 이정숙, 송완엽, 이숙경, 김형무, 서병수 |
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Leaf Spot of Kudzu (Pueraria Lobata) Caused by Alternaria tenuissima |
Ja Moon Kim, Jung Sook Lee, Wan Yeob Song, Sook Kyung Lee, Hyung Moo Kim, Byung Soo Seo |
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Abstract |
In July of 2002, leaf spot disease was found on kudzu (Pueraria lobata) leaves in Jeonbuk province. A small leaf spot was appeared on leaves as a typical symptom and the spot was then surrounded by chlorotic halo. The lesions were expended and coalesced and the infected leaves became yellow leaf and later fall out. A causal fungal pathogen was isolated and the colony of the pathogen was light gray green to dark green on PDA. The pathogen produced mostly the single conidium but rarely long chain of 3 to 8 conidia. The conidia were dark brown in color, long ellipsoid or oval and 20-60 × 10-25 μm in size. Their septa were 4-8 transverse and 1-2 longitudinal or oblique. The pathogen was, therefore, identified as Alternaria tenuissima based on cultural and morphological characteristics. This is the first report on the leaf spot of kudzu caused by A. tenuissima in Korea. |
Key Words:
Alternaria tenuissima, kudzu, Leaf spot, Pueraria Lobata |
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