Citrus tristeza virus (CTV), a member of the genus Closterovirus within the family Closteroviridae, is the causal agent of citrus tristeza disease.Previous
Wheat plants showing dark green and dwarfing symptoms were collected from Baoding,Hebei province and preserved in an insect-proofing greenhouse.The virus wa
Viroids are the smallest known plant pathogens and can infect many plants.Coleus blumei, which was originally found in Indonesia, is an ornamental plant gro