First Report of Turnip mosaic virus in Rhubarb in Alaska

Equilibrium sedimentation of turnip yellow mosaic virus.

Sedimentation equilibrium was achieved with turnip yellow mosaic virus at low speeds (600 rpm) in a magnetic ultracentrifuge. The experiments were carried out in the newly installed constant-speed rotor, equipped with automatic control and an electromagnetic drive. A particle mass of 5.55 x 10(6) daltons was calculated for the virus at vanishing concentrations, in essential agreement with the e...

Serological Interrelationships in the Turnip Yellow Mosaic Virus Group .--I

The serological interrelationships between eleven viruses in the turnip yellow mosaic virus group (tymoviruses) were studied with 2% antisera from 48 rabbits. Antisera from different rabbits and from different bleedings of the same rabbit showed considerable differences in their homologous and heterologous reactivities. A classification based on average serological differentiation indices is pr...

Serological interrelationships in the turnip yellow mosaic virus group.

The serological interrelationships between eleven viruses in the turnip yellow mosaic virus group (tymoviruses) were studied with 286 antisera from 48 rabbits. Antisera from different rabbits and from different bleedings of the same rabbit showed considerable differences in their homologous and heterologous reactivities. A classification based on average serological differentiation indices is p...

Study of resistance to cucumber mosaic virus watermelon mosaic virus and zucchini yellow mosaic virus in melon cultivars

First Genome Sequence of Wild Onion Symptomless Virus, a Novel Member of Potyvirus in the Turnip Mosaic Virus Phylogenetic Group

The nearly complete genome sequence of a new species of potyvirus was obtained from the symptomless wild onion (Allium sp.) in Turkey. This virus has less than 67% nucleotide sequence identities over the polyprotein to other known potyviruses. We propose the name wild onion symptomless virus for this novel potyvirus.