Tobacco etch potyvirus

Family   : Potyviridae
Genus    : Potyvirus
Acronym  : TEV

Introduction

Tobacco etch virus (TEV) is a plant pathogenic virus. Like other members of the Potyvirus genus, TEV is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein. Datura Z virus, Tobacco severe etch virus, Tomato etch virus are few strains of Tobacco etch virus

Major Diseases

Mottle

Geographical Distribution

Karnataka

Particle Morphology

Flexuous filamentous particles of 730 nm x 12-13 nm.

Transmission Method

Transmitted by Myzus persicae; Aphididae in a non-persistent manner; transmitted by mechanical inoculation; not transmitted by seed.

Detection

ELISA

Host Range and Symptomatology ShowHide

Host	Symptoms
Capsicum annuum (Bell Pepper)	Mottling, mosaic and leaf malformation, fruit malformation and stunting.
Solanum lycopersicum (Tomato)	Mosaic and leaf malformation.
Nicotiana tabacum (Tobacco)	Mottling and necrotic leaf etching.

References ShowHide

1	Bidari, V. B. ; Reddy, H. R., Natural occurrence of tobacco etch virus (TEV) on chilli in India.. 1986, Current Science, India, 55, 5, pp 254-256.
2	Bidari, V. B. ; Reddy, H. R., Prevalence of chilli viruses in Dharwad district.. 1983, Plant Pathology Newsletter, 1, 1, pp 11-Dec.
3	Mohan, J. ; Sharma, A. K., Calotropis mosaic virus.. 1987, Current Science, India, 56, 6, pp 274-275.
4	Sandhu, K. S. ; Chohan, J. S., Studies on the characterization of a mottle disease of chilli (Capsicum annuum) in the Punjab.. 1979, publ. 1980, Indian Journal of Mycology and Plant Pathology, 9, 2, pp 177-182.