NEET · BiologyHard
The biocontrol agent is highly effective against soil-borne plant pathogens. What is the primary mechanism by which it exerts its antagonistic effect?
- A.Production of systemic acquired resistance in the host plant
- B.Competition for nitrogen fixation in the rhizosphere
- C.Mycoparasitism involving the secretion of chitinases and glucanases
- D.Inhibition of photosynthesis in the target pathogen
Show correct answer & step-by-step solution
Correct answer: C — Mycoparasitism involving the secretion of chitinases and glucanases
Solution
- Trichoderma species are free-living fungi common in root ecosystems.
- They exhibit mycoparasitism by attacking other fungi.
- They secrete enzymes such as chitinases and -1,3-glucanases to degrade the cell walls of pathogens.
- Hence the answer is (C).
Attempt this question & track your score
Sign up free to answer, get instant scoring, and let SolveGini track which Biology topics you need to revise.
Attempt & Track Free →More Microbes practice questions
- The chemical substance produced by microbes that can kill or retard the growth of other disease-causing microbes is call
- Which microbe is used to produce ethanol from molasses?
- Which of the following microbes is used in the production of Swiss cheese?
- Which of the following is used as a clot buster for removing clots from the blood vessels of patients who have undergone
- Which of the following is a common source of citric acid produced on an industrial scale?
- Which of the following microbes is used for the commercial production of citric acid?
- The primary treatment of sewage involves which of the following processes?
- Which microbe is responsible for the production of the clot buster enzyme streptokinase?
- The symbiotic association between fungi and roots of higher plants is known as:
- Which of the following is a biofertilizer that fixes atmospheric nitrogen in paddy fields?
- Which of the following microbial enzymes is specifically employed in the industrial production of clarifying agents for
- During secondary sewage treatment, the BOD of the effluent is significantly reduced. If the BOD value of a sample is mea