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Polar Biology

, Volume 26, Issue 1, pp 1–7 | Cite as

The first subantarctic plant virus report: Stilbocarpa mosaic bacilliform badnavirus (SMBV) from Macquarie Island

  •  M. Skotnicki
  •  P. Selkirk
  •  E. Kitajima
  •  T. McBride
  •  J. Shaw
  •  A. Mackenzie
Original Paper

Abstract.

We report here the finding of a new plant virus, Stilbocarpa mosaic bacilliform badnavirus (SMBV) in Stilbocarpa polaris (Homb. et Jacq.) Gray on subantarctic Macquarie Island. This is the first vascular plant virus reported from any of the remote subantarctic islands, and represents the southernmost plant virus found anywhere. The virus causes mild to severe yellow mosaic symptoms in the perennial megaherb S. polaris. Virus distribution appears most widespread in the northern third of Macquarie Island, although S. polaris occurs around the whole island. DNA sequencing of a conserved part of the virus genome showed it is most closely related to badnaviruses of temperate and tropical plants, which are mainly transmitted by mealybugs (Hemiptera: Coccoidea). No mealybugs have been found on Macquarie Island, where the vector may be an aphid (Hemiptera: Aphidoidea) or thrip (Thysanoptera). We discuss possible origins, dispersal and evolution of this plant virus on isolated Macquarie Island.

Keywords

Vascular Plant Virus Genome Plant Virus Tropical Plant Mosaic Symptom 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  •  M. Skotnicki
    • 1
  •  P. Selkirk
    • 2
  •  E. Kitajima
    • 3
  •  T. McBride
    • 2
  •  J. Shaw
    • 4
  •  A. Mackenzie
    • 1
  1. 1.Photobioenergetics, Research School of Biological Sciences, Institute of Advanced Studies, Australian National University, Canberra, A.C.T. 2601, Australia
  2. 2.Department of Biological Sciences, Macquarie University, Sydney, N.S.W. 2109, Australia
  3. 3.Departamento de Entomologia, Fitopatologia e Zoologia Agricola, Escola Superior de Agricultura Luiz de Quieroz, Universidade de Sao Paolo, C.P. 9, Piracicaba, S.P. 13418-900, Brazil
  4. 4.University of Tasmania, Hobart, Tasmania, 7005, Australia

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