Bean yellow mosaic virus

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Bean yellow mosaic virus (BYMV)
Canna Mottled 01.jpg
BYMV affected Canna (plant)
Virus classification
Group: Group IV ((+)ssRNA)
Family: Potyviridae
Genus: Potyvirus
Species: Bean yellow mosaic virus

bean virus 2
canna mosaic virus
gladiolus mosaic virus
gloriosa stripe mosaic virus

Bean yellow mosaic virus (BYMV) is a plant pathogenic virus [1] in the genus Potyvirus and the virus family Potyviridae. Like other members of the Potyvirus genus, BYMV is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein. The virus is a filamentous particle that measures about 750 nm in length. This virus is transmitted by species of aphids and by mechanical inoculation.[2]

Geographic Distribution and Host Range[edit]

A mosaic disease, believed to be BYMV, was first reported in the early 1900s infecting garden peas (Pisum sativum) in the Northeastern United States.[3] Today the virus is believed to be distributed worldwide.

In addition to peas this virus is known to infect many other legumes (family Fabaceae) including green beans (Phaseolus vulgaris),[4] peanuts (Arachis hypogaea),[5] soybeans (Glycine max),[6] Faba beans (Vicia faba), several species of clover (Trifolium hybridum, T. vesiculosum, T. incarnatum, T. pratense, T. repens, T. subterraneum), alfalfa (Medicago sativa), vetch (Vicia sativa), lupine (Lupinus luteus),[7] Black Locust (Robinia pseudoacacia), Fenugreek (Trigonella foenum-graecum),and Crotalaria spectabilis.

It also is known to infect several non-leguminous plants including Gladiolus sp.,[8] Fressia sp., Opium Poppy (Papaver somniferum), Canna spp. and Eustoma russellianum.

Symptoms in these plants include mosaic, leaf malformation and leaf mottling. [9] This virus makes two kinds of viral inclusions, laminiated aggregates and a nuclear inclusion.[10]


  1. ^ About Plant Viruses
  2. ^ Plant Virus Descriptions
  3. ^ Doolittle, S.P. and Jones, F.R. (1925). Phytopathology 15: 763
  4. ^ Pierce, W.H. (1934). Phytopathology 24: 87
  5. ^ Bays, D.C. and Demski, J.W. (1986). Plant Dis. 70: 667 Archived May 15, 2009, at the Wayback Machine.
  6. ^ Ghabrial, S.A., Pickard, C.M. and Stuckey, R.E. (1977). Identification and Distribution of Virus Diseases of Soybean in Kentucky. Pl. Dis. Reptr 61: 690
  7. ^ Corbett,M. K. (1958) A Virus Disease of Lupines caused by Bean Yellow mosaic virus. Phytopathology 48:86-91
  8. ^ Strains of Bean Yellow Mosaic Virus Compared to Clover Yellow Vein Virus in Relation to Gladiolus Production in Florida. Nagel, J., Zettler, F.W. and Hiebert, E. (Phytopathology 73:449,1983.)[permanent dead link]
  9. ^ Symptoms of BYMV in Bean
  10. ^ Virual Inclusions of BYMV

External links[edit]