Trichoderma is a species of fungus, which is a:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Biocontrol agent
A biocontrol agent is a living organism used to control pests and plant diseases. Trichoderma species are free-living fungi that are very common in the root zone of plants. They control several plant pathogens.
(1) Biocontrol agent — Correct. Trichoderma is an effective biocontrol agent.
(2) Acid producer — Incorrect. Acids in industry come from other microbes, such as Aspergillus niger (citric acid) and Acetobacter aceti (acetic acid).
(3) Biofertiliser — Incorrect. Biofertilisers are organisms that add nutrients to the soil. Examples are Rhizobium and mycorrhizal fungi such as Glomus.
(4) Methanogen — Incorrect. Methanogens are bacteria that make methane, such as Methanobacterium, which work in biogas production.
NCERT Extract:
Microbes as Biocontrol Agents – …
