VIEW ARTICLE

Some Characteristics of a Virus from Virginia Crab Apple. M. Weintraub, Research Scientist, Research Station, Canada Department of Agriculture, 6660 N.W. Marine Drive, Vancouver, British Columbia; H. W. J. Ragetli, Research Scientist, Research Station, Canada Department of Agriculture, 6660 N.W. Marine Drive, Vancouver, British Columbia. Phytopathology 61:431-432. DOI: 10.1094/Phyto-61-431.

The herbaceous host range of a virus from a Virginia crab apple with stem-grooving symptoms was limited to two Chenopodium species. It was not possible to identify the virus by its host range, dilution end point (10^–4-10^–5), thermal inactivation point (50-55 C), and particle length (613 nm). A distinctive characteristic of the virus, called HMV-A, was the induction of hypertrophied mitochondria in necrotic leaf areas.