Question

What diseases are caused by viroids in plants?

Answer 1

Viroids:

1. Viroids are small, infectious RNA particles that do not have a protein coat.
2. Viroids damage plants and are known as plant pathogens.

Diseases caused by viroids in plants are:

1. Citrus exocortis: This disease is caused in citrus plants. Symptoms: Reduction of growth and yields in plants.
2. Cucumber pale fruit: This disease results in white powdery spots on leaves, stems, and fruits.
3. Chrysanthemum stunt: This disease is caused due to mishandling infected plants before touching healthy plants.
4. Potato spindle tuber disease: This disease causes overlapping of leaflets and rolling of terminal leaflets.