Botany Department, Lucknow University, Lucknow
A virus disease of Gomphrena globosa L. causing mosaic symptoms has been described; the virus produced necrotic or chlorotic local lesions on Chenopodium amaranticolor, Spinacia oleracea and Vigna sinensis, and yellow mosaic or mosaic symptoms on a few ornamental plants viz. Chrysanthemum carinatum Schousb. Verbena hybrida Voss., Dianthus caryophyllus L., Zinnia elegans Jacq. and Calendula officinalis L. The virus withstood exposure to 83 C, a dilution of 10−6 and storage for 37 days at room temperature. The virus remained infective in dried leaves for six months. It was sap transmissible, and not by aphids and white flies; on comparison with the viruses producing local or systemic symptoms in G. globosa it was found to differ in host range and physical properties.
