Iris yellow spot virus
Family : Bunyaviridae
Genus : Tospovirus
Acronym : IYSV
Introduction
Iris Yellow Spot Virus (IYSV), is an important tospovirus infecting Garlic, Onion and Leek. Infected plants produce chlorotic and straw colored spindle like lesion.
Major Diseases
Yellow Spot
Geographical Distribution
Haryana, Maharashtra, Punjab and other Northern states.
Particle Morphology
Pleomorphic enveloped particles.
Transmission Method
Transmitted through thrips (Thrips tabaci) in a persistent propagative manner; not transmitted by seed.
Detection
ELISA and RT-PCR methods.
Host Range and Symptomatology
| Host | Symptoms |
| Allium Ampeloprosum | Chlorotic spindle- or diamond-shaped lesions on the leaves and scapes with twisting or bending flower-bearing stalks |
| Allium sativum L. | Chlorotic spindle- or diamond-shaped lesions on the leaves and scapes with twisting or bending flower-bearing stalks |
| Allium Tubercusm | Chlorotic spindle- or diamond-shaped lesions on the leaves and scapes with twisting or bending flower-bearing stalks |
References
| 1 | Iris yellow spot virus. [Distribution map].. 2014, Distribution Maps of Plant Diseases, April, pp Map 1011 (Edition 3). |
| 2 | Iris yellow spot virus. [Distribution map].. 2009, Distribution Maps of Plant Diseases, October, pp Map 1011 (Edition 2). |
| 3 | Iris yellow spot virus. [Distribution map].. 2007, Distribution Maps of Plant Diseases, October, pp Map 1011 (Edition 1). |
| 4 | Gawande, S. J. ; Gurav, V. S. ; Ingle, A. A. ; Gopal, J., First report of Iris yellow spot virus infecting Allium tuberosum in India.. 2014, Plant Disease, 98, 8, pp 1161. |
| 5 | Gawande, S. J. ; Khar, A. ; Lawande, K. E., First report of Iris yellow spot virus on garlic in India.. 2010, Plant Disease, 94, 8, pp 1066. |
| 6 | Kunkalikar, S. R. ; Sudarsana Poojari ; Arun, B. M. ; Rajagopalan, P. A. ; Chen TsungChi ; Yeh ShyiDong ; Naidu, R. A. ; Zehr, U. B. ; Ravi, K. S., Importance and genetic diversity of vegetable-infecting tospoviruses in India.. 2011, Phytopathology, 101, 3, pp 367-376. |
| 7 | Pawan Kumar ; Poonam Dhawan, Biological and serological diagnosis of Iris yellow spot virus in onion from northern India.. 2013, Annals of Agri Bio Research, 18, 1, pp 48-54. |
| 8 | Pawan Kumar ; Poonam Dhawan ; Rakesh Mehra, Symptoms and losses caused by onion yellow dwarf virus and iris yellow spot virus diseases of onion crop in Northern India.. 2012, Journal of Mycology and Plant Pathology, 42, 1, pp 153-160. |
| 9 | Ravi, K. S. ; Kitkaru, A. S. ; Winter, S., Iris yellow spot virus in onions: a new tospovirus record from India.. 2006, Plant Pathology, 55, 2, pp 288. |