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"Decoding Microscopic Marvels: Viroids Unveiled"


Viroids: Nature's Tiny Troublemakers:

Definition:

Conversely, viroids are tiny, contagious circular RNA molecules. What sets them apart from viruses is their lack of a protective protein coat and their simplicity.

Contrasts with Viruses:

Absence of Protective Protein Coat: Viroids defy the conventional viral structural paradigm by lacking a protective protein coat, in contrast to viruses.
Single-stranded RNA: Unlike viruses, which have complicated genetic machinery, viroids are made of single-stranded RNA.

Structural Components:

Mastery of Circular RNA: Viroids are characterised by a single circular RNA molecule that exhibits a secondary structure that is highly base-paired.


    Diseases Caused:

    • Agricultural Disruptors: Viroids are renowned for causing diseases in plants, disrupting normal growth and development.

    Examples and Species:

    • Potato Spindle Tuber Viroid (PSTVd): Impacting potato plants.
    • Citrus Exocortis Viroid (CEVd): Influencing citrus crops.
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