Tradescantia mosaic virus
Encyclopedia
Tradescantia mosaic virus (TZV) is a plant pathogenic virus in the genus Potyvirus
and the virus family Potyviridae
. Like other members of the Potyvirus genus, TZV is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein. The virus is a filamentous particle that measures about 754 nanometers in length. This virus is transmitted by two species of aphids, Myzus persicae
and Rhapalosiphum padi and by mechanical inoculation.
Symptoms and Inclusions of Tradescantia mosaic virus (= Tradescantia/Zebrina virus) in Trandescantia sp.
. These include Commelina diffusa
, Gibasis geniculata, Tradescantia
albiflora,T. blossfeldiana, T. fluminensis, Tradescantia spathacea
(Rhoeo spathacea), and T. zebrina (Zebrina pendula).
Potyvirus
Potyviruses infect plants and belong to the family Potyviridae. The genus is named after the type virus - Potato Virus Y.The Potyvirus, like the Begomoviruses, have ~30% of the currently known plant viruses and have at least 180 definitive and possible members...
and the virus family Potyviridae
Potyviridae
The Potyviridae are a family of plant viruses. They are . Their genome is composed of positive-sense RNA which is surrounded by a protein coat made up of a single viral encoded protein called a capsid. All induce the formation of virus inclusion bodies called in their hosts...
. Like other members of the Potyvirus genus, TZV is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein. The virus is a filamentous particle that measures about 754 nanometers in length. This virus is transmitted by two species of aphids, Myzus persicae
Myzus persicae
Myzus persicae, known as the green peach aphid, is a small green aphid. It is the most significant aphid pest of peach trees, causing decreased growth, shriveling of the leaves and the death of various tissues...
and Rhapalosiphum padi and by mechanical inoculation.
Symptoms and Inclusions of Tradescantia mosaic virus (= Tradescantia/Zebrina virus) in Trandescantia sp.
Host Range and Geographic Distribution
This virus was originally reported in seven commercial greenhouses in Minnesota. In a study published in 1988 , the virus was found in weeds and ornamentals in Florida and in botanical collections from Mexico and Czechoslovakia. Its host range was limited to members of the CommelinaceaeCommelinaceae
Commelinaceae is a family of flowering plants. In less formal contexts, the group is referred to as the dayflower family or spiderwort family. It is one of five families in the order Commelinales and by far the largest of these with an estimated 650 species in 40 genera. Well known genera include...
. These include Commelina diffusa
Commelina diffusa
Commelina diffusa, sometimes known as the climbing dayflower or spreading dayflower, is a pantropical herbaceous plant in the dayflower family. It has been introduced to the southeastern United States where it is most common in wet disturbed soils. There are two recognised varieties, one being the...
, Gibasis geniculata, Tradescantia
Tradescantia
Tradescantia , the Spiderworts, is a genus of an estimated 71 species of perennial plants in the family Commelinaceae, native to the New World from southern Canada south to northern Argentina. They are weakly upright to scrambling plants, growing to 30–60 cm tall, and are commonly found...
albiflora,T. blossfeldiana, T. fluminensis, Tradescantia spathacea
Tradescantia spathacea
Tradescantia spathacea, or Moses-in-the-Cradle, is a herb native to Mexico with fleshy rhizomes. It has rosettes of waxy lance-shaped leaves. Leaves are dark to metallic green above, with glossy purple underneath. These will reach up to 1 foot long by 3 inches wide. They are very attractive...
(Rhoeo spathacea), and T. zebrina (Zebrina pendula).