Archives of Virology

, Volume 149, Issue 9, pp 1851–1857

Competition between wild-type virus and a reassortant from subgroups I and II of CMV and activation of antiviral responses in cowpea

  • M. Takeshita
  • K. Kikuhara
  • S. Kuwata
  • N. Furuya
  • Y. Takanami
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Summary.

To investigate the interactions between RNA3 and RNA4 from subgroups I and II in mixed infections, accumulation of CMV RNA were analyzed. In the mixed inoculation assays with CMV-LE (LE, subgroup I) and a reassortant LLm consisting of RNA1 and RNA2 from LE, and RNA3 from CMV-m2 (m2, subgroup II), LE RNA3 and RNA4 could systemically spread in the plants, whereas those of m2 could not. Furthermore, accumulation of virus short RNA and a cowpea-encoded RNA-directed RNA polymerase gene (VuRdRP1) mRNA were found in the plants, suggesting that VIGS and/or distinct antiviral responses (was) were activated by infection with CMV.

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Copyright information

© Springer-Verlag/Wien 2004

Authors and Affiliations

  • M. Takeshita
    • 1
  • K. Kikuhara
    • 2
  • S. Kuwata
    • 3
  • N. Furuya
    • 1
  • Y. Takanami
    • 1
  1. 1.Laboratory of Plant Pathology, Faculty of AgricultureGraduate School of Kyushu UniversityFukuokaJapan
  2. 2.Fukuoka Agricultural Research CenterFukuokaJapan
  3. 3.Laboratory of Plant Cell Technology, Department of Life SciencesSchool of Agriculture, Meiji UniversityKanagawaJapan

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