The Plant Pathology Journal

The Korean Society of Plant Pathology (한국식물병리학회)
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Tobacco mosaic virus Detected in Vegetatively Propagated Petunia Hybrids 'Surfinia'

  • Chung, Bong-Nam (Horticultural Environment Division, National Horticultural Research Institute, RDA) ;
  • Kim, Jeong-Soo (Horticultural Environment Division, National Horticultural Research Institute, RDA) ;
  • Cho, Jeom-Deog (Horticultural Environment Division, National Horticultural Research Institute, RDA) ;
  • Cheong, Seung-Ryong (Horticultural Environment Division, National Horticultural Research Institute, RDA) ;
  • Jeong, Myeong-Il (Horticultural Environment Division, National Horticultural Research Institute, RDA)
  • Published : 2007.03.31
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Abstract

Introduction of vegetatively propagated Petunia hybrids since 1992 led to increasing virus infections of propagation material. Petunia hybrid 'Surfinia' cultivated for pot-plant showed yellowing symptom along with stunt. Flowers were smaller in size and showed color-break symptom. Tobacco mosaic virus(TMV-pet) was isolated from the diseased petunia. Healthy petunia plants inoculated with TMV-pet induced mottle on leaves and color-break on flowers, and plants were stunted. Nucleotide sequences of coat protein gene amplified from RNA prepared from Nicotiana tabacum cv. Samsun infected with TMV-pet were determined(GenBank accession no. DQ981481). It showed 99.0% nucleotide sequence homology with TMV-potato3-2(GenBank accession no. AF318215) isolated from potato showing yellow mosaic and stunt symptom, and with a TMV Korean strain(GenBank accession no. X68110). This is the first reported observation of TMV from vegetatively propagated petunia in Korea.

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References

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