• Title/Summary/Keyword: horticultural plant

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First Report of Fusarium Wilt of Fallopia multiflora Caused by Fusarium oxysporum in Korea

  • Park, Jong-Han;Han, Kyung-Sook;Lee, Seong-Chan;Soh, Jae-Woo;Park, Mi-Jeong
    • Research in Plant Disease
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    • v.21 no.1
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    • pp.24-26
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    • 2015

  • In April 2014, seedlings of Fallopia multiflora showing wilt symptom were first found at a greenhouse in Punggi-eup, Yeongju-si, Korea. A Fusarium-like fungus was isolated from the wilted plant and it was identified as Fusarium oxysporum based on morphological characteristics and nucleotide sequence data of translation elongation factor 1-${\alpha}$. The fungus isolated from the diseased plant was revealed to be pathogenic to the host plant through pathogenicity tests, and the reisolation of the pathogen confirmed Koch's postulates. This is the first report of Fusarium wilt occurring on Fallopia multiflora in the world.

  • https://doi.org/10.5423/RPD.2015.21.1.024 인용 PDF KSCI

Characterization of a Novel Cucumber mosaic virus Isolated from Petunia hybrida

  • Han, Kyung-Sook;Choi, Gug-Seoun;Chung, Bong-Nam;Cho, Jeom-Duk;Cho, In-Sook;Kim, Kee-Hong;Kim, Su;Yoon, Ju-Yeon;Choi, Seung-Kook
    • The Plant Pathology Journal
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    • v.28 no.3
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    • pp.299-305
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    • 2012

  • Petunia hybrida is commonly used in landscapes and interiors for its attractive flower. Virus-like foliar symptoms, including a mosaic with dark green islands surrounding the veins and chlorosis on the leaf margins, were observed on a petunia plant from Icheon, Gyeonggido, Korea. Cucumber mosaic virus (CMV) was identified in the symptomatic petunia by serological testing for the presence of CMV coat protein (CP) with a direct antibody-sandwich-enzyme-linked immunosorbent assay. An agent was mechanically transmitted to indicator plant species including Chenopodium quinoa. Examination of the inoculated plant leaves by RT-PCR analysis and electron microscopy revealed the presence of specifically amplified CP products and spherical virions of approximately 28 nm in diameter, respectively, providing confirmation of a CMV infection. Analysis of CP sequences showed that CMV petunia isolate (CMVYJC) shared 82.5-100% amino acid sequence identity with CPs of representative CMV strains. Phylogenetic analysis of CPs supports that CMV-YJC is a member of CMV subgroup IA (CMV-IA) and has biological properties of CMV-IA on host species. To our knowledge, this is the first report of CMV from P. hybrida in Korea.

  • https://doi.org/10.5423/PPJ.NT.04.2012.0050 인용 PDF KSCI