Correct option is C
Glomus species are well known for forming
arbuscular mycorrhizal associations with plant roots, which significantly improve phosphorus uptake and overall plant nutrition.
Claviceps species infect cereal crops and produce toxic alkaloids that cause
ergot disease, which is responsible for the condition known as ergotism.
Beauveria bassiana is classified as an
entomogenous fungus because it infects insects and is widely used in biological control programmes.
Trichoderma species function as
biocontrol fungi by suppressing soil-borne plant pathogens through competition and antagonistic mechanisms.
Information booster: Mycorrhizal fungi play a vital role in improving
nutrient absorption, drought tolerance, and soil health in agricultural ecosystems. Ergotism caused by
Claviceps has historical importance due to its
toxic effects on humans and livestock consuming infected grains. Entomogenous fungi are considered eco-friendly tools in
integrated pest management strategies.
Trichoderma species are extensively used in agriculture for
disease management and soil health improvement.
Why other options are incorrect: (a) This option is incorrect because
Glomus is not a biocontrol fungus but a mycorrhizal fungus. (b) This option is incorrect as ergotism is wrongly associated with
Glomus instead of
Claviceps. (d) This option is incorrect because
Beauveria and
Trichoderma are not matched with their correct functional roles.
