Maize dwarf mosaic virus

Family   : Potyviridae
Genus    : Potyvirus
Acronym  : MDMV

Introduction

A single-stranded RNA virus infects numerous species in the Gramineae, and induces the formation of cytoplasmic, cylindrical (pinwheel and scroll) inclusions in host cells and may be of different strains like MDMV-A, MDMV-D, MDMV-E, MDMV-F. The virus is closely related to Sugarcane mosaic virus, Johnsongrass mosaic virus, Sorgam mosaic virus and Zea mosaic virus.

Major Diseases

Mosaic disease

Geographical Distribution

Maharashtra, Uttar Pradesh.

Particle Morphology

Flexuous filamentous with an average length of 715 nm.

Transmission Method

The virus was readily transmitted by sap but could not be transmitted through seeds; It was readily transmitted to maize in the laboratory by Aphis gossypii Glov., Rhopalosiphum maidis (Fitch) and Myzus persicae (Sulz) in non persistent manner.

Detection

DAC-ELISA, ISEM and RT-PCR.

Host Range and Symptomatology

Host	Symptoms
Zea mays (maize)	Mosaic or mottle on leaves, severely infected plants are stunted.
Sorghum arundinaceum	Mosaic or mottle on leaves, severely infected plants are stunted.
Sorghum sudanense	Mosaic or mottle on leaves, severely infected plants are stunted.
Sorghum bicolor	Mosaic or mottle on leaves, severely infected plants are stunted.

References

1	Maize dwarf mosaic virus. [Distribution map].. 2003, Distribution Maps of Plant Diseases, October (Edition 1), pp Map 899.
2	Jensen, S. G. ; Andrews, D. J. ; DeVries, N. E., Reaction of pearl millet germ plasm from the world collection to maize dwarf mosaic virus strains A and B.. 1983, Plant Disease, 67, 10, pp 1105-1108.
3	Mali, V. R., Current status of sugarcane mosaic subgroup of potyviruses causing sorghum red stripe in India.. 2001, 10, pp 99-154.
4	Mali, V. R., An immunity (QL3) breaking strain of sorghum mosaic potyvirus in India.. 1999, Plant Disease, 83, 9, pp 877.
5	Mali, V. R. ; Thakur, R. P., Reactions and virus titres of differential sorghum inbred lines mechanically inoculated with an Indian isolate of sorghum red stripe potyvirus (SRSV-Ind).. 1999, Sugar Tech, 1, 01-Feb, pp 13-18.
6	Pawar, S. V. ; Garud, T. B. ; Kohire, O. D., Studies on the epidemiology of sorghum red stripe virus disease in Marathwada Region of Maharashtra.. 2004, Annals of Plant Physiology, 18, 2, pp 198-202.
7	Pawar, S. V. ; Garud, T. B. ; Kohire, O. D., Effect of potyviruses on yield contributing characters of sorghum differentials under natural epiphytotic conditions.. 2002, publ. 2003, Annals of Plant Physiology, 16, 2, pp 178-182.
8	Rao, G. P. ; Gaur, R. K. ; Maneesha Singh, Distribution and serological diagnosis of sugarcane mosaic potyvirus in India.. 2003, Sugar Cane International, January/February, pp 06-Nov.
9	Rao, G. P. ; Jain, R. K. ; Varma, A., Occurrence of maize dwarf mosaic virus on maize and sudangrass in India.. 1996, Plant Disease, 80, 6, pp 711.
10	Singh, C. A. K., Occurrence of maize dwarf mosaic virus in India.. 1983, Current Science, 52, 17, pp 818-819.