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 language | English |
|---|---|
| Pages (from-to) | 215-223 |
| Number of pages | 9 |
| Journal | Experimental and Applied Acarology |
| Volume | 30 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2003 |
Keywords
- Brevipalpus californicus
- Mite transmission
- Orchid fleck virus
- Orchids
- Plant virus
- Rhabdovirus
- Virus genome structure
ASJC Scopus subject areas
- Ecology
- Insect Science