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Plantago Mottle Virus, a New Member of the Tymovirus Group. A. L. Granett, Senior Research Associate, Department of Plant Pathology, New York State Agricultural Experiment Station, Geneva, New York 14456; Phytopathology 63:1313-1316. Accepted for publication 19 April 1973. DOI: 10.1094/Phyto-63-1313.

Plantago mottle virus (PlMV) is a new member of the b-subgroup of the tymoviruses. Virus particles are isometric and average 26.7 nm in diam. Particles occasionally form pseudo-crystals within leaf cytoplasm. PlMV has an extinction coefficient of 8.51 at 260 nm. The nucleic acid of the virus has a molar base composition of guanine 17%, adenine 21%, cytosine 34%, and uracil 28%. Serologically, it is related to turnip yellow mosaic, ononis yellow mottle, andean potato latent, dulcamara mottle, and belladonna mottle viruses.

Additional keywords: Pisum sativum.