Potato leafroll virus

Family   : Luteoviridae
Genus    : Polerovirus
Acronym  : PLRV

Introduction

Potato leafroll virus (PLRV) is one of the most important potato viruses world wide but particularly devastating in countries with limited resources and management. It can be responsible for individual plant yield losses of over 50%.

Major Diseases

Leaf roll disease

Geographical Distribution

Throughout in potato growing regions in India.

Particle Morphology

Spherical virus particles with a diameter of 25 nm.

Transmission Method

Transmitted by M. persicae and A. gossypii in a persistent manner.

Detection

Immuno-electron microscopy (IEM), enzyme-linked immunosorbent assay (ELISA) and RT-PCR.

Host Range and Symptomatology ShowHide

Host	Symptoms
Solanum tuberosum (Potato)	Primary infection occurs in the youngest leaves. Leaf margins become necrotic, turning brown and purplish and curl inwards towards the center of the leaf. secondary infection, which starts from infected potato culls, produces more severe symptoms. Leaf rolling is more apparent and the entire leaf can become chlorotic and sometimes also has a purple discoloration.

References ShowHide

1	Amitava Konar ; Basu, A., Build up of aphids on potato in Hooghly district of West Bengal.. 2000, pp 477-479.
2	Amitava Konar ; Basu, A. ; Mukhopadhyay, S. K. ; Chettri, M., Population build up of aphids on potato in Burdwan District of West Bengal.. 2001, Journal of the Indian Potato Association, 28, 1, pp 123-124.
3	Arnitava Konar ; Santanu Paul, Influence of abiotic factors on the occurrence of virus-vectors on potato in plains of West Bengal.. 2006, Journal of Entomological Research, 30, 4, pp 285-290.
4	Balwinder Singh, Indexing of Potato leaf roll virus (PLRV) from potato growing areas of Punjab, India.. 2014, International Journal of Virology, 10, 4, pp 272-279.
5	Basu, A. ; Chettri, M. ; Konar, A., Degeneration of potato varieties in the plains of West Bengal.. 2003, Journal of the Indian Potato Association, 30, 01-Feb, pp 125-126.
6	Biswas, C. ; Dey, P. ; Mitra, S. ; Bera, A. ; Satpathy, S. ; Karmakar, P. G., First report of Potato leaf roll virus (PLRV) naturally occurring on jute (Corchorus olitorius) in India.. 2014, Plant Disease, 98, 11, pp 1592-1593.
7	Biswas, M. K. ; De, B. K. ; Mohasin, M., Relationship between vector pressure (Myzus persicae and Aphis gossypii) and spread of PVY and PLRV invoked diseases in the plains of West Bengal.. 2000, 11, pp 483-486.
8	Deb, D. ; Saha, A. K. ; De, B. K., Screening of potato cultivars against potato viruses.. 2002, Journal of Interacademicia, 6, 1, pp 113-114.
9	Garg, I. D., Virus and virus-like diseases of potato and their management.. 2005, 1, pp 200-222.
10	Garg, I. D. ; Chandla, V. K. ; Khurana, S. M. P. ; Narendra Singh, Potato cultivation and health status of the crop in Leh and Ladakh (J&K).. 2003, Journal of the Indian Potato Association, 30, 01-Feb, pp 121-122.
11	Khurana, S. M. P. ; Garg, I. D., Potatoes in warm climates.. 2003, 01-Feb, pp 167-193.
12	Santanu Paul ; Amitava Konar, Incidence of viral diseases and insect vectors on potato in indo-gangetic plains of West Bengal.. 2003, Journal of the Indian Potato Association, 30, 01-Feb, pp 127-128.
13	Sharma, K. K. ; Kang, G. S., Appraisal of rate of degeneration in some potato cultivars.. 2003, Journal of the Indian Potato Association, 30, 01-Feb, pp 123-124.
14	Shekhawat, G. S. ; Khurana, S. M. P. ; Singh, B. P., Important diseases of potato and their management.. 2000, 01-Feb, pp 281-303.

Sequences ShowHide