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Colletotrichum sojae에 의한 땅콩 탄저병 발생 보고
김신화 ( Shinhwa Kim ),최수연 ( Soo Yeon Choi ),정현정 ( Hyunjung Chung ),최낙중 ( Nak Jung Choi ),서보윤 ( Bo Yoon Seo ),김상민 ( Sang-min Kim ) 한국균학회 2024 韓國菌學會誌 Vol.52 No.1
In August 2023, leaf spot disease was observed in peanuts in Cheongju-si, Korea. Leaf spots occurred at the leaf margins and the lesions gradually expanded. Diseased leaf areas were light or dark brown and irregular in shape. A fungal isolate was obtained from symptomatic leaf and cultured on potato dextrose agar (PDA) medium at 25℃. An isolate was identified as Colletotrichum sojae based on morphological characteristics and sequences of the internal transcribed spacers, glyceraldehyde-3-phosphate dehydrogenase, chitin synthase-1, actin, and β-tubulin genes. Pathogenicity tests were performed on peanut seedlings in a conidial suspension (1×106 conidia/mL). Lesions were observed on the peanut leaf 5 d after inoculation. The pathogen was re-isolated from the lesions of the inoculated leaves. To the best of our knowledge, this is the first report of anthracnose on peanut caused by C. sojae in Korea.