Question

Potato spindle tuber disease is caused by?

Answer 1

Potato spindle tuber disease:

1. It is a serious disease that affects tomato and potato plants.
2. This disease is caused by viroids.
3. Viroids are single-stranded RNA molecules that are covalently closed.
4. It lacks a protein coating.
5. The Potato spindle tuber viroid or PSTVd was the first to be described.
6. It contains a circular, small RNA molecule.
7. The Pospiviroid RY motif stem-loop is found within the viroid RNA.
8. Their natural hosts are potatoes and tomatoes.