Marigold Mottle Virus in Aligarh, India. Qamar A. Naqvi, Botany Department, Aligarh Muslim University, Aligarh 202 001, India. S. Hadi, and K. Mahmood, Botany Department, Aligarh Muslim University, Aligarh 202 001, India. Plant Dis. 65:271-275. . This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1981. DOI: 10.1094/PD-65-271.

Marigold mottle virus, a mechanically transmissible virus with rod-shaped particles about 675 nm long, was isolated from diseased marigolds in Aligarh, India. Symptoms included mottling and green mosaic in the leaves, stunting of plant growth, discoloration of Nicotiana sanderae flowers, and suppression of spines of Datura metel fruit. The virus was maintained on N. glutinosa and readily transmitted through sap and also by Myzus persicae. Ultraviolet absorption was maximum at 260 nm and minimum at 234 nm; A₂₆₀A₂₈₀ ratio was 1:28. The virus sedimented as a single band in sucrose density gradient columns and had one centrifugal component with a sedimentation coefficient of 152 S. Marigold mottle virus may be a member of the potyvirus group and serologically related to Datura mosaic and tobacco etch viruses.