| Trichothecium roseum에 의한 감귤 분홍빛열매썩음병 발생 |
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권진혁 ( Jin Hyeuk Kwon ) , 강동완 ( Dong Wan Kang ) , 최옥희 ( Ok Hee Choi ) , 심홍식 ( Hong Sik Shim ) |
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| Pink Mold Rot on Unishiu Orange (Citrus unshiu Mac.) Caused by Trichothecium roseum (Pers.) Link ex Gray in Korea |
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Jin-Hyeuk Kwon1*, Dong-Wan Kang1, Okhee Choi2 and Hong-Sik Shim3 |
1Gyeongsangnam-do Agricultural Research and Extention Services, Jinju 660-370, Korea
2Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju 660-701, Korea
3Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Korea |
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Received: March 04, 2013 Revised: September 17, 2013 Accepted: September 23, 2013 |
| Abstract |
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In 2012, a pink mold rot was observed on unishiu orange (Citrus unshiu Mac.) fruits at the Wholesale Market for Agricultural Products, Jinju, Korea. The symptom on unishiu orange was a water-soaked lesion on the surface of fruit, which later on enlarged to form softened brown rot lesions. The diseased fruits were covered with pink-colored mold, consisting of conidia and conidiophores of the pathogen. Optimum temperature for mycelial growth was 25oC. Conidia were hyaline, smooth, 2-celled, and thick-walled conidia with truncate bases, ellipsoidal to pyriform, characteristically held together zig-zag chains and 12?26 × 8?12 μm in size. Conidiophore was erect, colorless, unbranched, and 4?5 μm wide. On the basis of mycological characteristics, pathogenicity test, and molecular analysis with complete ITS rDNA region, the causal fungus was identified as Trichothecium roseum (Pers.) Link ex Gray. This is the first report of pink mold rot caused by T. roseum on unishiu orange in Korea. |
| Key Words:
Citrus unshiu, Pink mold rot, Trichothecium roseum, Unishiu orange |
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