CARNATION VIRUSES IN NEW ZEALAND
Two apparently new viruses were detected in Dianthus species: an uncharacterized plant rhabdovirus, named carnation bacilli-form virus (CBV), with particles ca. 260 x 55 nm (in ultrathin sections) and an unidentified isometric virus (D 345) ca. 30 nm in diameter.
The viruses were characterized by a variety of methods including host range, symptoms, aphid transmission and particle morphology. The three rod viruses CLV, CNFV and CVMV were differentiated by particle morphology and size. Normal lengths for CLV and CVMV were 656 nm and 738 nm, respectively, while CNFV had particles in the range 1,000–1,450 nm. The identity of the polyhedral viruses ArMV, CarMV and CRSV, was confirmed by serology. Carnation etched ring virus was identified by its particle size, ca. 48 nm in diameter, and a consistent association with refractile inclusion bodies which were readily observed by light microscopy in epidermal strips stained with phloxine/trypan blue.
Cytological observations were made on ultrathin sections of leaves from plants infected with CBV, CERV-50, CLV and CVMV. Aggregates of CBV and CLV particles were observed in the cytoplasm; CERV-50 infected plants contained typical inclusions and particles of the virus; and CVMV induced cylindrical inclusions typical of the potyvirus group.
Complete paper will be published elsewhere.
DOI: 10.17660/ActaHortic.1976.59.8
https://doi.org/10.17660/ActaHortic.1976.59.8
- Working Group Virus Diseases of Ornamentals
- Division Temperate Tree Nuts
- Division Vine and Berry Fruits
- Division Ornamental Plants
- Division Vegetables, Roots and Tubers
- Division Physiology and Plant-Environment Interactions of Horticultural Crops in Field Systems
- Division Protected Cultivation and Soilless Culture
- Division Postharvest and Quality Assurance
- Division Tropical and Subtropical Fruit and Nuts
- Division Temperate Tree Fruits