NEET 2019 · BiologyPrevious Year Question
Which of the following can be used as a biocontrol agent in the treatment of plant disease?
Answer: (A) Trichoderma. Answer: (a) Trichoderma Solution: Trichoderma species are free-living fungi common in root ecosystems and are effective biocontrol agents against several plant pathogens.
- A.Trichoderma✓
- B.Chlorella
- C.Anabaena
- D.Lactobacillus
Correct Answer
(A) Trichoderma
Solution & Explanation
Answer: (a) Trichoderma Solution: Trichoderma species are free-living fungi common in root ecosystems and are effective biocontrol agents against several plant pathogens. Chlorella and Anabaena are algae/cyanobacteria and Lactobacillus is a household LAB, none of which is used as a plant-disease biocontrol agent. NCERT Reference: Ch 8, p.157, line 30 — "A biological control being developed for use in the treatment of plant"
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