Identification and Pathogenicity of Sclerotinia minor Causing Sclerotinia Rot in Stringy Stonecrop

Unusual symptoms of Sclerotinia rot were observed in stringy stonecrop (Sedum sarmentosum) plants cultivated in vinyl greenhouses in Icheon, Korea, during a disease survey conducted in March 2024. The symptoms were characterized as soft rot of stems and leaves at or above the soil line in the early...

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Main Authors: Wan-Gyu Kim, Gyo-Bin Lee, Weon-Dae Cho
Format: Article
Language:English
Published: Hanrimwon Publishing Company 2024-12-01
Series:Research in Plant Disease
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Online Access:http://www.online-rpd.org/upload/pdf/RPD-2024-30-4-457.pdf
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author Wan-Gyu Kim
Gyo-Bin Lee
Weon-Dae Cho
author_facet Wan-Gyu Kim
Gyo-Bin Lee
Weon-Dae Cho
author_sort Wan-Gyu Kim
collection DOAJ
description Unusual symptoms of Sclerotinia rot were observed in stringy stonecrop (Sedum sarmentosum) plants cultivated in vinyl greenhouses in Icheon, Korea, during a disease survey conducted in March 2024. The symptoms were characterized as soft rot of stems and leaves at or above the soil line in the early stage. In the late stage, most of the diseased plants collapsed and rotted with white to grayish brown mycelia. Occasionally, black, spherical or irregular, small sclerotia formed on the stems and leaves of the diseased plants. The disease occurred in 1‒3% of the plants in three out of 20 surveyed vinyl greenhouses. Three isolates of Sclerotinia sp. were obtained from diseased stems and identified as Sclerotinia minor based on their morphological characteristics and phylogenetic analysis. The pathogenicity of the S. minor isolates to stringy stonecrop plants was tested through artificial inoculation. The tested isolates induced Sclerotinia rot symptoms in the inoculated plants, which were similar to those observed in the disease survey. This study reveals that S. minor is one of the causal fungi of Sclerotinia rot in stringy stonecrop.
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publishDate 2024-12-01
publisher Hanrimwon Publishing Company
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series Research in Plant Disease
spelling doaj-art-11727cc996fe4fd8b161f222846c65fe2025-08-20T03:04:38ZengHanrimwon Publishing CompanyResearch in Plant Disease1598-22622233-91912024-12-0130445745910.5423/RPD.2024.30.4.4571880Identification and Pathogenicity of Sclerotinia minor Causing Sclerotinia Rot in Stringy StonecropWan-Gyu Kim0Gyo-Bin Lee1Weon-Dae Cho2Global Agro-Consulting Corporation, Suwon 16614, KoreaGlobal Agro-Consulting Corporation, Suwon 16614, KoreaGlobal Agro-Consulting Corporation, Suwon 16614, KoreaUnusual symptoms of Sclerotinia rot were observed in stringy stonecrop (Sedum sarmentosum) plants cultivated in vinyl greenhouses in Icheon, Korea, during a disease survey conducted in March 2024. The symptoms were characterized as soft rot of stems and leaves at or above the soil line in the early stage. In the late stage, most of the diseased plants collapsed and rotted with white to grayish brown mycelia. Occasionally, black, spherical or irregular, small sclerotia formed on the stems and leaves of the diseased plants. The disease occurred in 1‒3% of the plants in three out of 20 surveyed vinyl greenhouses. Three isolates of Sclerotinia sp. were obtained from diseased stems and identified as Sclerotinia minor based on their morphological characteristics and phylogenetic analysis. The pathogenicity of the S. minor isolates to stringy stonecrop plants was tested through artificial inoculation. The tested isolates induced Sclerotinia rot symptoms in the inoculated plants, which were similar to those observed in the disease survey. This study reveals that S. minor is one of the causal fungi of Sclerotinia rot in stringy stonecrop.http://www.online-rpd.org/upload/pdf/RPD-2024-30-4-457.pdfsclerotinia minorsclerotinia rotsedum sarmentosumstringy stonecrop
spellingShingle Wan-Gyu Kim
Gyo-Bin Lee
Weon-Dae Cho
Identification and Pathogenicity of Sclerotinia minor Causing Sclerotinia Rot in Stringy Stonecrop
Research in Plant Disease
sclerotinia minor
sclerotinia rot
sedum sarmentosum
stringy stonecrop
title Identification and Pathogenicity of Sclerotinia minor Causing Sclerotinia Rot in Stringy Stonecrop
title_full Identification and Pathogenicity of Sclerotinia minor Causing Sclerotinia Rot in Stringy Stonecrop
title_fullStr Identification and Pathogenicity of Sclerotinia minor Causing Sclerotinia Rot in Stringy Stonecrop
title_full_unstemmed Identification and Pathogenicity of Sclerotinia minor Causing Sclerotinia Rot in Stringy Stonecrop
title_short Identification and Pathogenicity of Sclerotinia minor Causing Sclerotinia Rot in Stringy Stonecrop
title_sort identification and pathogenicity of sclerotinia minor causing sclerotinia rot in stringy stonecrop
topic sclerotinia minor
sclerotinia rot
sedum sarmentosum
stringy stonecrop
url http://www.online-rpd.org/upload/pdf/RPD-2024-30-4-457.pdf
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AT gyobinlee identificationandpathogenicityofsclerotiniaminorcausingsclerotiniarotinstringystonecrop
AT weondaecho identificationandpathogenicityofsclerotiniaminorcausingsclerotiniarotinstringystonecrop