NEET BIOLOGY

Detailed explanation-1: -Trichoderma spp. are free-living fungi that are common in soil and root ecosystems. Recent discoveries show that they are opportunistic, avirulent plant symbionts, as well as being parasites of other fungi.

Detailed explanation-2: -Trichoderma is a free-living saprophytic fungi that most commonly lives on dead organic matter in the soil and rhizosphere (root ecosystem). It inhibits pathogens through release of gliotoxin, viridin, gliovirin and trichodermin like substances.

Detailed explanation-3: -Solution : Trichoderma species are free-living fungi that are very common in the root ecosystems. They are effective biocontrol agents.

Detailed explanation-4: -Mycorrhizal fungi form a mutualistic symbiosis with plants and infect roots without causing root disease. These fungi can be found in the rhizosphere of most plants and form associations with all gymnosperms and more than 83% of dicotyledonous and 79% of monocotyledonous plants.

Detailed explanation-5: -So, the correct answer is ‘biological control of plant diseases’