Question

explain viroids with example

Answer 1

Viroids are small infectious pathogens. They are composed solely of a short strand of circular, single-stranded RNA that has no protein coating. All known viroids are inhabitants of angiosperms, and most cause diseases, whose respective economic importance on humans varies widely.

diseases that are caused by viroids in plants are citrus exocortis, cucumber pale fruit, chrysanthemum stunt, etc. These infections spread due to many reasons. Some infections spread due to the propagation of seeds in plants by cutting, tubers etc.

hope it's help u

Answer 2

Viroids are infectious pathogens that affect only plants, therefore are also called as the plant pathogens. Structurally, viroids are smaller than viruses and possess circular strands of ribonucleic acids (RNA’s) with no protein coating. These entities hijack the cellular machinery present in plant cells to replicate new copies of itself. It primarily affects all forms of higher plants.

Examples : - ASBV group

PSTV group