Planetagarden
Virus - Sivu 2
barley yellow dwarf virus pathogen
Barley yellow dwarf virus (BYDV) is a positive sense single-stranded RNA virus; the viron is not enveloped in a lipid coating. The virus is transmitte...
barley yellow dwarf is caused by
Barley yellow dwarf is caused by a virus of the Luteovirus group, and is spread, or vectored, by aphids. In Pennsylvania, four aphid species are known...
potato spindle tuber viroid discovery
In 1960s, potato spindle tuber was thought to be a viral disease. ... As a result, PSTVd was eradicated from Canada in late 1980s. Viroids similar to ...
the infectious agent that causes potato spindle tuber disease was discovered by
Viroid discovery Bagnall. By 1967–1968, it became clear to us, that the agent causing potato spindle tuber disease was not a conventional “virus” but ...
