First Report of Tulip band breaking virus in Mosaic Diseased Tulip in Japan

Plant Disease
T Se, S Kanematsu

Abstract

Tulip (Tulipa spp.) is an ornamental plant of major economic importance in Japan. Regions in Toyama Prefecture are some of the most productive for producing tulip bulbs, shipping approximately 50 million bulbs annually. However, mosaic diseases caused by viruses such as Tulip breaking virus (TBV) currently limit bulb production in these areas. Only the potyviruses TBV and Lily mottle virus (LMoV) have been reported infecting tulip in Japan. A virus isolate from tulip with flower-breaking symptom in Toyama Prefecture was tentatively named OE4 and was presumed to be LMoV after detection by LMoV-specific reverse transcription-polymerase chain reaction (RT-PCR) (4). When OE4 was mechanically inoculated on test plants (13 species from six families), RT-PCR confirmed that it infected plants in the Liliaceae (Tulipa spp., Lilium formosanum, and L. concolor) with mosaic symptoms but did not induce any symptoms in Chenopodium quinoa, Tetragonia tetragonoides, and Nicotiana benthamiana. According to Dekker et al. (2) LMoV and Tulip band breaking virus (TBBV) infected Tulipa spp. and TBBV did not infect C. quinoa, T. tetragonoides, N. clevelandii, and N. benthamiana, species that were local or systemic hosts for LMoV. To analyze the genom...Continue Reading

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