Rhizopus stolonifer에 의한 포도 무름병

A rhizopus soft rot caused by Rhizopus stolonifer occurred sporadically on grape in orchard in Gyeongsang-nam-do Agricultural Research and Extension Services and in Wholesale Market of Agricultural Products in Jinju city. The infected fruits were rapidly water-soaked, softened and eventually rotted,...

Full description

Saved in:
Bibliographic Details
Published inSigmulbyeong yeon'gu Vol. 13; no. 1; pp. 57 - 60
Main Author 권진혁,심창기,채윤석,박창석
Format Journal Article
LanguageKorean
Published 한국식물병리학회 2007
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:A rhizopus soft rot caused by Rhizopus stolonifer occurred sporadically on grape in orchard in Gyeongsang-nam-do Agricultural Research and Extension Services and in Wholesale Market of Agricultural Products in Jinju city. The infected fruits were rapidly water-soaked, softened and eventually rotted, and the symptoms were initiated from wounds or cracks occurred at harvest time. Sporangiophores were $850{\sim}1,800{\mu}m$ in length and $12{\sim}23{\mu}m$ in width. Sporangia were globose or hemispheric and $80{\sim}190{\mu}m$ in size. The color of sporangia was white and cottony at first and gradually to brownish black, bearing abundant spores when it matured. Columella were hemispheric and $70{\sim}95{\mu}m$ in size. Sporangiospores were irregular round or oval, brownish-black streaked and $8{\sim}22{\times}6{\sim}10{\mu}m$ in size. The optimum temperature for mycelial growth of the fungus on PDA was 25$^{\circ}C$. On the basis of mycological characteristics and pathogenicity to grape (Vitis vinifera), the causal fungus was identified as Rhizopus stolonifer (Ehrenberg ex. Fr,) Lind. This is the first report of Rhizopus soft rot by R. stolonifer on grape (V. vinifera) in Korea. 2003년부터 2006년까지 4년 동안 경남농업기술원 과수포장과 진주시 농산물 도매시장에서 유통 판매중인 포도에서 이상증상이 발생하였다. 병징은 상처나 열과된 과실이 수침상으로 물러지면서 빠르게 부패되었다. 균총은 처음 흰색에서 연한 갈색으로 되며 검은색의 포자낭을 많이 형성한다. 균사생육 적온은 $25^{\circ}C$였다. 포자낭경은 처음 흰색에서 회색을 나타내며 크기는 $850{\sim}1,800{\mu}m$이며 폭은 $12{\sim}23{\mu}m$이었다. 포자낭은 처음에 흰색에서 검은색으로 되며 모양은 반구형으로 크기는 $80{\sim}190{\mu}m$이었다. 주축의 모양은 반구형으로 크기는 $70{\sim}95{\mu}m$이었다. 포자낭포자는 담갈색으로 단포이며 구형 또는 타원형으로 불규칙한 것이 많으며 크기는 $8{\sim}22{\times}6{\sim}10{\mu}m$이었다. 이상과 같이 병원균의 균학적 특징과 병원성을 검정한 결과, 본 병해를 Rhizopus stolonifer (Ehrenberg ex. Fr.) Lind에 의한 포도 무름병으로 명명할 것을 제안한다.
Bibliography:KISTI1.1003/JNL.JAKO200716419427758
G704-000936.2007.13.1.003
ISSN:1598-2262
2233-9191