Pea seed-borne mosaic virus

Family   : Potyviridae
Genus    : Potyvirus
Acronym  : PSbMV

Introduction

Pea seed-borne mosaic virus (PSbMV), a definitive member of the genus, Poty virus, is economically important and distributed world wide in most of the pea growing countries with maximum seed transmission of 90% causing yield loss upto 36%. The virus is known to be transmitted by 22 aphid species. It is also seed transmitted in Lens culinaris upto 44% and to a lower extend in many Vicia and Lens spp.

Major Diseases

Stunting Disease/Rolling Leaf Disease

Geographical Distribution

Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Sikkim and Tripura, Maharashtra, Uttar Pradesh.

Particle Morphology

An RNA-containing virus with filamentous particles 770 x 12 nm.

Transmission Method

Transmitted by a vector Acyrthosiphon pisum, Aphis craccivora, A. fabae, Dactynotus escalanti, Macrosiphum crataegarius, Rhopalosiphum padi; Aphididae. in a non-persistent manner. Virus transmitted by mechanical inoculation; transmitted by seed.

Detection

ELISA and RT-PCR.

Host Range and Symptomatology

Host	Symptoms
Lens and vicia	Downward rolling of leaflets, vein clearing and mosaic and distorted few/no flowers.
Pisum sativum	Transitory vein clearing, rosetting of stem and branches, leaves dark green and leaflets folded adaxially, flowers malformed and often sterile, pods small, few misshapen seeds.

References

1	Pea seed-borne mosaic virus. [Distribution map].. 2003, Distribution Maps of Plant Diseases, April (Edition 1), pp Map 886.
2	Kumar, C. A. ; Shamsher Singh ; Khetarpal, R. K., Assaying of common pea viruses.. 1987, publ. 1988, Indian Journal of Mycology and Plant Pathology, 17, 2, pp 196-197.
3	Naidu, R. A. ; Sreenivasulu, P. ; Manohar, S. K. ; Ramakrishna, K. N. ; Reddy, D. V. R. ; Nayudu, M. V., Identification of peanut green mosaic virus strains in India.. 1991, Journal of Phytopathology, 133, 1, pp 49-56.
4	Parakh, D. B. ; Chalam, V. C. ; Maurya, A. K. ; Khetarpal, R. K. ; Shamsher Singh ; Arvinder Kaur, Interception of Pea seed-borne mosaic virus in pea germplasm imported during 2003.. 2006, Indian Journal of Virology, 17, 1, pp 35-38.
5	Sontakke, P. L. ; Nirmal, D. D. ; Magar, S. J., Screening of pea genotypes against virus causing stunting in pea under field condition.. 2008, International Journal of Plant Sciences (Muzaffarnagar), 3, 1, pp 296-297.
6	Varma, A. ; Khetarpal, R. K. ; Vishwanath, S. M. ; Dhirendra Kumar ; Maury, Y. ; Sharma, B. ; Tyagi, M. C., Detection of pea seed-borne mosaic virus in commercial seeds of pea, and germplasm of pea and lentil.. 1991, Indian Phytopathology, 44, 1, pp 107-111.