Q.1
The term "Pathovar” belonging to the taxonomy of plant pathogens is used for
- The Taxonomic Rank 'Pathovar': In botanical and phytopathological nomenclature, the term pathovar (pv.) is defined by the International Code of Nomenclature of Bacteria (ICNB) specifically for plant pathogenic bacteria.
- Definition: A pathovar is an infrasubspecific taxon denoting a bacterial strain or set of strains with the same or similar characteristics, differentiated based on distinctive pathogenicity or host range on specific plant species or cultivars (e.g., Xanthomonas campestris pv. campestris, Pseudomonas syringae pv. phaseolicola).
- Other Groups: For fungi, similar intraspecific variants are termed forma specialis (f. sp.) or races; for nematodes, races or biotypes are used.
- Conclusion: Pathovar is used in bacterial taxonomy (Option 4).
Correct option: (4) Bacteria
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