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Pink Mold Rot on Apple (Malus pumila var. dulcissima Koidz.) Caused by Trichothecium roseum (Pers.) Link ex Gray in Korea

Trichothecium roseum에 의한 사과 분홍빛열매썩음병 발생

  • Received : 2014.11.18
  • Accepted : 2014.12.20
  • Published : 2014.12.31

Abstract

In 2012, a pink mold rot was observed on apple (Malus pumila var. dulcissima Koidz.) at the Wholesale Market for Agricultural Products, Jinju, Korea. The first symptom of pink mold rot on apple fruit is a water-soaked appearance of the affected tissue and surface fruit formed pink mold rot, then became brown and produced a mass of powdery pink conidia spores. Colony was fast growing colonies, pinksh, zonate in diurnal rhythm, powdery from conidia. Optimum temperature for mycelial growth was $25^{\circ}C$. Conidia were hyaline, smooth, two-celled, thick-walled conidia with truncate bases, ellipsoidal to pyriform, and characteristically held together zig-zag chains and $12-26{\times}8-12{\mu}m$ in size. Conidiophore was erect, colorless, unbranched, and $4-5{\mu}m$ wide. 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.

Keywords

Apple;Malus pumila var. dulcissima;Pink mold rot. Trichothecium roseum

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Cited by

  1. Antifungal Activity of Bacillus Subtilis HK2 against Trichothecium Roseum Causing Pink Rot of Melon and White Stain Symptom on Grape vol.29, pp.1, 2016, https://doi.org/10.7732/kjpr.2016.29.1.039
  2. High Humidity and Age-Dependent Fruit Susceptibility Promote Development of Trichothecium Black Spot on Apple vol.103, pp.2, 2019, https://doi.org/10.1094/PDIS-05-18-0734-RE

Acknowledgement

Supported by : 국립농업과학원