Stem Rot on Ligularia fischeri Caused by Sclerotium rolfsii in Korea
In June 2012 and 2013, a destructive stem rot symptoms of Ligularia fischeri occurred sporadically in Hoengseong- gun and Pyeongchang-gun Gangwon-do, Korea. The typical symptom included water-soaking on the main stem, rotting, wilting and blighting, which eventually leads to death of the plant. Whit...
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| Format: | Article |
| Language: | English |
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Hanrimwon Publishing Company
2015-03-01
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| Series: | Research in Plant Disease |
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| Online Access: | http://www.online-rpd.org/journal/view.html?uid=1435&pn=lastest&vmd=Full |
| _version_ | 1818159656166490112 |
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| author | Youn-Gi Moon Se-Won Kim Jun-Keun Choi Soon-Bae Kwon Hong-Sik Shim Ho-Jong Ju In-Young Choi |
| author_facet | Youn-Gi Moon Se-Won Kim Jun-Keun Choi Soon-Bae Kwon Hong-Sik Shim Ho-Jong Ju In-Young Choi |
| author_sort | Youn-Gi Moon |
| collection | DOAJ |
| description | In June 2012 and 2013, a destructive stem rot symptoms of Ligularia fischeri occurred sporadically in Hoengseong- gun and Pyeongchang-gun Gangwon-do, Korea. The typical symptom included water-soaking on the main stem, rotting, wilting and blighting, which eventually leads to death of the plant. White mycelial mats were spread over lesions and brown sclerotia were formed on stems and near soil surface. The sclerotia were white to brown, spherical or irregular, 1-3 mm in size on potato dextrose agar (PDA), The optimum temperature range of hyphal growth was 25-30oC and the hyphal diameter was 4-10 mm. The typical clamp connections were observed in the hyphae of the fungus grown on PDA. The resulting sequence of 695 bp was deposited in GenBank. A BLAST search revealed that sequences of the this isolates showed >99% identity with those of Sclerotium rolfsii. On the basis of the morphological characteristics and phylogenetic analyses of molecular markers ITS rDNA, the fungi were identified as S. rolfsii. A pathogenicity test was carried out to fulfill Koch’s postulates. To our knowledge, this is the first report of S. rolfsii on Ligularia fischeri in Korea |
| first_indexed | 2024-12-11T15:49:27Z |
| format | Article |
| id | doaj.art-f6fb9e67aa0942c5be305427043bd14f |
| institution | Directory Open Access Journal |
| issn | 1598-2262 2233-9191 |
| language | English |
| last_indexed | 2024-12-11T15:49:27Z |
| publishDate | 2015-03-01 |
| publisher | Hanrimwon Publishing Company |
| record_format | Article |
| series | Research in Plant Disease |
| spelling | doaj.art-f6fb9e67aa0942c5be305427043bd14f2022-12-22T00:59:37ZengHanrimwon Publishing CompanyResearch in Plant Disease1598-22622233-91912015-03-012113639http://dx.doi.org/10.5423/RPD.2015.21.1.036Stem Rot on Ligularia fischeri Caused by Sclerotium rolfsii in KoreaYoun-Gi Moon0Se-Won Kim1Jun-Keun Choi2Soon-Bae Kwon3Hong-Sik Shim4Ho-Jong Ju5In-Young Choi6Gangwon-do Agricultural Research and Extension,koreaGangwon-do ARES,koreaGangwon-do Agricultural Research and Extension,koreaGangwon-do Agricultural Research and Extension,koreaRural Development Administration,koreaChonbuk National University, Jeonju 561-765, KoreaJeollabuk-do Agricultural Research and Extension Services,koreaIn June 2012 and 2013, a destructive stem rot symptoms of Ligularia fischeri occurred sporadically in Hoengseong- gun and Pyeongchang-gun Gangwon-do, Korea. The typical symptom included water-soaking on the main stem, rotting, wilting and blighting, which eventually leads to death of the plant. White mycelial mats were spread over lesions and brown sclerotia were formed on stems and near soil surface. The sclerotia were white to brown, spherical or irregular, 1-3 mm in size on potato dextrose agar (PDA), The optimum temperature range of hyphal growth was 25-30oC and the hyphal diameter was 4-10 mm. The typical clamp connections were observed in the hyphae of the fungus grown on PDA. The resulting sequence of 695 bp was deposited in GenBank. A BLAST search revealed that sequences of the this isolates showed >99% identity with those of Sclerotium rolfsii. On the basis of the morphological characteristics and phylogenetic analyses of molecular markers ITS rDNA, the fungi were identified as S. rolfsii. A pathogenicity test was carried out to fulfill Koch’s postulates. To our knowledge, this is the first report of S. rolfsii on Ligularia fischeri in Koreahttp://www.online-rpd.org/journal/view.html?uid=1435&pn=lastest&vmd=FullLigularia fischeriSclerotium rolfsii |
| spellingShingle | Youn-Gi Moon Se-Won Kim Jun-Keun Choi Soon-Bae Kwon Hong-Sik Shim Ho-Jong Ju In-Young Choi Stem Rot on Ligularia fischeri Caused by Sclerotium rolfsii in Korea Research in Plant Disease Ligularia fischeri Sclerotium rolfsii |
| title | Stem Rot on Ligularia fischeri Caused by Sclerotium rolfsii in Korea |
| title_full | Stem Rot on Ligularia fischeri Caused by Sclerotium rolfsii in Korea |
| title_fullStr | Stem Rot on Ligularia fischeri Caused by Sclerotium rolfsii in Korea |
| title_full_unstemmed | Stem Rot on Ligularia fischeri Caused by Sclerotium rolfsii in Korea |
| title_short | Stem Rot on Ligularia fischeri Caused by Sclerotium rolfsii in Korea |
| title_sort | stem rot on ligularia fischeri caused by sclerotium rolfsii in korea |
| topic | Ligularia fischeri Sclerotium rolfsii |
| url | http://www.online-rpd.org/journal/view.html?uid=1435&pn=lastest&vmd=Full |
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