NEET 2008 Biology question

Which one of the following proved effective for biological control of nematodal disease in plants?

(1)Paecilomyces lilacinus
(2)Pisolithus tinctorius
(3)Pseudomonas cepaciaCorrect
(4)Gliocladium virens

Answer: (3)

Solution

Among the options, the answer key accepts Pseudomonas cepacia (now Burkholderia cepacia), a rhizosphere bacterium that suppresses plant-parasitic nematodes and soil-borne pathogens, as the effective biocontrol agent. Hence option (3). Pisolithus tinctorius is an ectomycorrhizal fungus that helps

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Question ID VK-090128