Mahir m am; Fortass M; Bos l 1992

• Authors: Mahir m am; Fortass M; Bos l
• Title: Identification and properties of a deviant isolate of the broad bean yellow band serotype of pea early-browning virus from faba bean vicia-faba in algeria
• Location: Netherlands journal of plant pathology, 98 (4). 1992. 237-252.
• Abstract: a virus, isolated from faba bean (vicia faba) obtained from algeria, was readily recognized as a tobravirus by its particle sizes and morphology. pea (pisum sativum) and french bean (phaseolus vulgaris) characteristically reacted to the isolate like pea early-browning virus (pebv), but faba bean, Antirrhinum majus, nicotiana rustica, and n. tabacum reacted with line-pattern symptoms which were unusually brilliant on the nicotiana species. in electron-microscope decoration tests, the isolate did not react with an antiserum to the dutch type strain of pebv, but wish one to the broad bean yellow band (bbyb) serotype from italy. it resembles this serotype in reaction on faba bean, but seems to differe appreciably on n. rustica, n. tabacum, and petunia hybrida. it is described as a deviant isolate of the bbyb serotype of pebv. all thirteen faba-bean genotypes tested were found to be susceptible to the algerian isolate and two dutch type strain isolates of the virus, and to react with erratic line-pattern symptoms to the algerian isolate only. all ten genotypes of chickpea (cicer arietinum) tested reacted hypersensitively, and four out of ten genotypes of lentil (lens culinaris) were susceptible to the virus but reacted differentially to the three isolates. seed transmission of pebv, including the new isolate, in faba bean is confirmed (9% for the algerian isolate, and over 45% for one of the dutch type strain isolates), and seed transmission of the virus in a non-legune (n. rustica, 4%) is herewith first reported. this is the first report on the occurrence of the bbyb serotype of pebv outside italy, and of pebv outside morocco in north africa.