Cymbidium mosaic virus

Family   : Alphaflexiviridae
Genus    : Potexvirus
Acronym  : CymMV

Introduction

Cymbidium mosaic virus (CymMV) is a plant pathogenic virus belonging to the genus Potexvirus affecting cultivated orchids worldwide. Infected plants can have less desirable flowers or other problems, causing significant financial losses to orchid growers. Orchid mosaic virus is one of commonly seen strain.

Major Diseases

Mosaic disease/Necrotic fleck Disease

Geographical Distribution

Occur whereever orchids are grown.

Particle Morphology

Flexuous particles, measuring approximately 520—160 x 18 nm.

Transmission Method

Transmitted by means not involving a vector; Virus transmitted by mechanical inoculation; transmitted by contact between plants.

Detection

ELISA, RT-PCR and Northern blot analysis.

Host Range and Symptomatology

Host	Symptoms
Datura stramonium	Mild chlorotic mottle or streaks on leaves.
Chenopodium amaranticolor	Mosaic, necrosis.
Cymbidium pendulum	Mosaic, water soaked local lesions.
C. tigrinum	Mosaic, necrosis
Vanilla planifolia	Mild chlorotic mottle and mosaic.

References

1	Bhat, A. I. ; Bhadramurthy, V. ; Siju, S. ; Hareesh, P. S., Detection and identification of Cymbidium mosaic virus infecting vanilla (Vanilla planifolia Andrews) in India based on coat protein gene sequence relationships.. 2006, Journal of Plant Biochemistry and Biotechnology, 15, 1, pp 33-37.
2	Rani, P. ; Pant, R. P. ; Jain, R. K., Serological detection of Cymbidium mosaic and Odontoglossum ringspot viruses in orchids with polyclonal antibodies produced against their recombinant coat proteins.. 2010, Journal of Phytopathology, 158, 07-Aug, pp 542-545.
3	Sathyanarayana, N. ; Latha, S. ; Reddy, O. R., Interception of cymbidium mosaic virus on imported dendrobium plants.. 2003, Indian Journal of Plant Protection, 31, 2, pp 118-119.
4	Sherpa, A. R. ; Bag, T. K. ; Hallan, V. ; Zaidi, A. A., Incidence of Cymbidium mosaic virus (CymMV) in Sikkim.. 2007, Indian Phytopathology, 60, 1, pp 133-136.
5	Sherpa, A. R. ; Hallan, V. ; Pathak, P. ; Zaidi, A. A., Characterization of the coat protein gene of Cymbidium mosaic virus isolates from India.. 2006, Journal of Phytopathology, 154, 5, pp 275-280.
6	Sherpa, A. R. ; Hallan, V. ; Ram, R. ; Vij, S. P. ; Pathak, P. ; Garg, I. D. ; Zaidi, A. A., First report of Cymbidium mosaic virus (CymMV) in orchids from India.. 2003, Plant Pathology, 52, 6, pp 788.
7	Sherpa, A. R. ; Vipin Hallan ; Promila Pathak ; Zaidi, A. A., Complete nucleotide sequence analysis of Cymbidium mosaic virus Indian isolate: further evidence for natural recombination among potexviruses.. 2007, Journal of Biosciences, 32, 4, pp 663-669.