Trichothecium roseum에 의한 배 분홍빛썩음병 발생
Pink Mold Rot on Asian Pear (Pyrus serotina Rehder) Caused by Trichothecium roseum (Pers.) Link ex Gray in Korea
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Abstract
A severe pink mold rot on matured asian pear (Pyrus serotina Rehder) fruit occurred in the organic farmers’ orchard in Jinju, Korea in October, 2012. Decay of pear fruit appeared as a softened water-soaked symptom that was easily punctured by pressure. Later pink mycelium appeared on the surface of pear fruit and produced a mass of powdery pink conidia spores. Optimum temperature for mycelial growth of T. roseum was 25℃. Conidia showed hyaline, smooth, 2-celled, thick-walled with truncate bases, ellipsoidal to pyriform, and characteristically held together zig-zag chains and 10-22(34)×6-10(12) ㎛ in size. Conidiophore was erect, colorless, unbranched type, and 4-5 ㎛ width. On the basis of mycological characteristics, pathogenicity test, and molecular identification with the ITS region, the causal fungus was identified as Trichothecium roseum (Pers.) Link ex Gray. Key words : pear, pink mold rot. pyrus serotina, trichothecium roseum
참고문헌 (7)
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