1
Which of the following nematodes are predatory?
(A) . Seinura
(B) . Mononchus
(C) . Dorylaimus
(D) . Mononchoides
Choose the correct answer from the options given below:
EXPLANATION
Economic Losses, Distribution of Key Genera
- Predatory Nematodes in Biological Control:
- Seinura: An aphelenchoidid predator that injects paralyzing saliva via its stylet into victim nematodes, sucking out body fluids.
- Mononchus: A voracious predatory mononchid possessing a heavily sclerotized, barrel-shaped stoma armed with a massive dorsal tooth and rasping denticles to seize and swallow prey nematodes whole.
- Dorylaimus: Large dorylaimid nematode with an axial odontostyle capable of piercing and predating upon other nematodes, rotifers, and oligochaetes.
- Mononchoides: A diplogastrid predator armed with movable predatory stomal teeth that ruptures the cuticle of prey nematodes.
- Conclusion: All four genera (A), (B), (C), and (D) exhibit predatory feeding habits (Option 3).
Correct option: (3) (A), (B), (C) and (D).
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