Isolates of bean common mosaic virus comprising two distinct potyviruses

Strains of bean common mosaic virus (BCMV) have been identified largely by their characteristic interactions with a selected number of differential bean cultivars. Recent studies have suggested that BCMV strains could be classified on serological and other grounds as strains of two distinct potyviru...

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Published in:Phytopathology 1992-09, Vol.82 (9), p.923-929
Main Authors: McKern, N.M. (CSIRO, Parkville, Australia), Mink, G.I, Barnett, O.W, Mishra, A, Whittaker, L.A, Silbernagel, M.J, Ward, C.W, Shukla, D.D
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
NUCLEOTIDE
NUCLEOTIDOS
PHASEOLUS
Phytopathology. Animal pests. Plant and forest protection
Plant viruses and viroids
PODER PATOGENO
POUVOIR PATHOGENE
Systematics. Structure, properties and multiplication. Genetics
VIRUS DEL MOSAICO DEL FRIJOL
VIRUS MOSAIQUE HARICOT
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Summary:Strains of bean common mosaic virus (BCMV) have been identified largely by their characteristic interactions with a selected number of differential bean cultivars. Recent studies have suggested that BCMV strains could be classified on serological and other grounds as strains of two distinct potyviruses. Using high-performance liquid chromatographic peptide profiles of coat protein digests together with limited peptide analysis, 22 isolates of BCMV, including representatives from seven recognized pathotypes, were compared with each other and with the type strains of blackeye cowpea mosaic virus (BlCMV) and peanut stripe virus (PStV). The peptide profiles confirm the existence of two distinct potyviruses among the current isolates of BCMV. BCMV strains NL-3, NL-5, NL-8, and Tn-1 are strains of one of the potyviruses, which we propose should be named "bean necrosis mosaic virus," since these strains induce temperature-insensitive necrosis in bean cultivars that carry the dominant I gene. Strains CH-2, NL-1, NL-2, NL4, NL-6, NL-7, PR-1, RU-1, US-1, US-2 (three variant isolates), US-3, US-4, US-5, US-6, US-7, and US-10 are strains of the second potyvirus, which we suggest should retain the name BCMV. Peptide profile data also suggest that isolates of BlCMV, PStV, azuki bean mosaic virus (AzMV), and three potyvirus isolates from soybean (PM, PN, and 74) are all strains of the second potyvirus, BCMV
ISSN:0031-949X
1943-7684
DOI:10.1094/Phyto-82-923