Orchid fleck virus: Brevipalpus californicus mite transmission, biological properties and genome structure

Hideki Kondo, Takanori Maeda, Tetsuo Tamada

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

Orchid fleck virus (OFV) causes necrotic or chlorotic ring spots and fleck symptoms in many orchid species world-wide. The virus has non-enveloped, hacilliform particles of about 40 nm x 100-150 nm and is sap-transmissible to several plant species. OFV is transmitted by the mite Brevipalpus californicus (Banks) in a persistent manner and efficiently transmitted by both adults and nymphs, but not by larvae. Viruliferous mites retain their infectivity for 3 weeks on a virus-immune host. The genome of OFV consists of two molecules of 6431 (RNA1) and 6001 nucleotides (RNA2). The RNAs have conserved and complemen-tary terminal sequences. RNA1 contains five open reading frames (ORF), and RNA2 encodes a single ORF. Although some of the encoded proteins of OFV have sequences similar to those of proteins of plant rhabdoviruses, OFV differs from viruses in the family Rhabdoviridae in having a bipartite genome.

Original languageEnglish
Pages (from-to)215-223
Number of pages9
JournalExperimental and Applied Acarology
Volume30
Issue number1-3
DOIs
Publication statusPublished - Dec 1 2003

Keywords

  • Brevipalpus californicus
  • Mite transmission
  • Orchid fleck virus
  • Orchids
  • Plant virus
  • Rhabdovirus
  • Virus genome structure

ASJC Scopus subject areas

  • Ecology
  • Insect Science

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