Bean yellow mosaic virus

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Bean yellow mosaic virus (BYMV)
Canna Mottled 01.jpg
BYMV affected Canna (plant)
Virus classification
Group: IV: (+)sense RNA Viruses
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., Poppys (Papaver somniferum), Canna spp. and Eustoma russellianum.

Symptoms in these plants include mosaic, leaf malformation and leaf mottling. Typical viral inclusions can be found in leaf strips.

Symptoms of BYMV in Bean

Virual Inclusions of BYMV


  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
  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.)

More References to BYMV[edit]

External links[edit]