title: Ceratobium mosaic potyvirus: another virus from orchids.
abstract: A potyvirus, which we call ceratobium mosaic virus, has been detected in about one third of more than 100 plants representing c. 33 orchid genera in two collections in Australia. It was detected using RT-PCR with redundant primers that are Potyviridae-specific and have additional sequences corresponding to either the SP6 or T7 bacteriophage promoters at their 5'-termini. Thus the nucleotide sequence of the resulting PCR fragments, consisting of about 1.7 kb of the 3' portion of the viral genome, could be determined directly. Viral sequences obtained from five infected orchids indicate that they contained different isolates of a single potyvirus species most closely related to the bean common mosaic group of potyviruses, but clearly distinct from all whose virion protein genes have been reported to the international gene sequence databases.
authors.affiliation: Research School of Biological Sciences, Australian National University, ACT, Australia.
authors.forename: A M
authors.initials: AM
authors.lastname: Mackenzie
authors.forename: M
authors.initials: M
authors.lastname: Nolan
authors.forename: K J
authors.initials: KJ
authors.lastname: Wei
authors.forename: M A
authors.initials: MA
authors.lastname: Clements
authors.forename: D
authors.initials: D
authors.lastname: Gowanlock
authors.forename: B J
authors.initials: BJ
authors.lastname: Wallace
authors.forename: A J
authors.initials: AJ
authors.lastname: Gibbs
mesh_terms: D000595:Amino Acid Sequence; D001315:Australia; D001483:Base Sequence; D017931:DNA Primers / Q000235:genetics; D004279:DNA, Viral / Q000235:genetics; D005814:Genes, Viral; D008969:Molecular Sequence Data; D010944:Plants / Q000821:virology; D016133:Polymerase Chain Reaction; D017800:Potyvirus / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification*; D017386:Sequence Homology, Amino Acid; D012689:Sequence Homology, Nucleic Acid
chemical_list: D017931:DNA Primers; D004279:DNA, Viral