Tomato marchitez virus, a new plant picorna-like virus from tomato related to tomato torrado virus
- 343 Downloads
A new virus was isolated from a tomato plant from the state of Sinaloa in Mexico. This plant showed symptoms locally known as ‘marchitez disease’: severe leaf necrosis, beginning at the base of the leaflets, and necrotic rings on the fruits. A virus was isolated from the infected plant consisting of isometric particles with a diameter of approximately 28 nm. The viral genome consists of two (+)ssRNA molecules of 7221 (RNA1) and 4898 nts (RNA2). The viral capsid contains three coat proteins of 35, 26 and 24 kDa, respectively. The abovementioned characteristics: symptoms, morphology, number and size of coat proteins, and number of RNAs are similar to those of the previously described tomato torrado virus (ToTV). Sequence analysis of the entire viral genome shows that this new virus is related to, but distinct from, ToTV and that these members of two obviously new virus species belong to the recently proposed plant virus genus Torradovirus. For this new virus, the name tomato marchitez virus (ToMarV) is proposed.
KeywordsCoat Protein Necrotic Ring Virus Band Entire Viral Genome Cesium Sulfate
Unable to display preview. Download preview PDF.
- Ikegami M, Iwanami T, Jones AT, Karasev AV, Le Gall O, Lehto K, Sanfaçon H, Wellink J, Wetzel T (2002) Taxonomy of recognized and putative species in the family Comoviridae. XIIth IUMS Virology meeting Paris, France, 27th July–12th August 2002Google Scholar
- Le Gall O, Iwanami T, Karasev AV, Jones T, Lehto K, Sanfaçon H, Wellink J, Wetzel T, Yoshikawa N (2005) Genus Cheravirus. In: VIIIth report of the ICTV on Taxonomy of Viruses. Elsevier Academic Press, San Diego, pp 803–805Google Scholar