Trichoderma harzianum has proved a useful
microorganism for
(a) gene transfer in higher plants
(b) biological control of soil-borne plant pathogens
(c) bioremediation of contaminated soils
(d) reclamation of wastelands.

1 Answer

Answer :

(b) biological control of soil-borne plant pathogens

Related questions

Description : A genetically engineered microorganism used successfully in bioremediation of oil spills is a species of (a) Trichoderma (b) Xanthomonas (c) Bacillus (d) Pseudomonas.

Last Answer : (d) Pseudomonas.

Description : Which one of the following is commonly used in transfer of foreign DNA into crop plants? (a) Meloidogyne incognita (b) Agrobacterium tumefaciens (c) Penicillium expansum (d) Trichoderma harzianum

Last Answer : (b) Agrobacterium tumefaciens

Description : Which one of the following is an example of carrying out biological control of pests/diseases using microbes? (a) Trichoderma sp. against certain plant pathogens. (b) Nucleopolyhedrovirus against white rust ... c) Bt-cotton to increase cotton yield. (d) Lady bird beetle against aphids in mustard.

Last Answer : (a) Trichoderma sp. against certain plant pathogens.

Description : The process of use of microorganism to remove salts from soil is referred as (A) Chelation (B) Bioremediation (C) Oxidation (D)Phyto – remediation

Last Answer : (B) Bioremediation

Description : Which of the following is not used as a biopesticide? (a) Trichoderma harzianum (b) Nucleopolyhedrovirus (NPV) (c) Xanthomonas campestris (d) Bacillus thuringiensis

Last Answer : (c) Xanthomonas campestris

Description : Which one of the following is an example of carrying out biological control of pests/diseases using microbes ? (1) Lady bird beetle against aphids in mustard (2) Trichoderma sp. against ... pathgens (3) Nucleopolyhedrovirus against white rust in Brassica (4) Bt-cotton to increase cotton yield

Last Answer : (2) Trichoderma sp. against certain plant pathgens

Description : The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant? (A) Chlorine (B) Alkalis (C) Benzene hexachloride (D) Alkyl benzene sulphonate (ABS)

Last Answer : (A) Chlorine

Description : Plant quarantine method is useful only when pathogen is — a. Wind borne b. Seed transmitted c. Soil inhabitant d. Vector transmissible

Last Answer : b. Seed transmitted

Description : Which one of the following proved effective for biological control of nematodal diseases in plants? (a) Gliocladium virens (b) Paecilomyces lilacinus (c) Pisolithus tinctorius (d) Pseudomonas cepacia

Last Answer : (b) Paecilomyces lilacinus

Description : Biological control component is central to advanced agricultural production. Which of the following is used as a third generation pesticide? (a) Insect repellants (b) Organophosphate and carbamates (c) Pathogens (d) Pheromones

Last Answer : (d) Pheromones

Description : How can biofilms can be useful? a. preventing tooth decay b. keeping surgical sites sterile c. bioremediation d. A-C are correct

Last Answer : c. bioremediation

Description : Microorganism used as biological indicator for sterilization by ionizing radiations A Bacillus subtilis B Bacillus pumilus C Salmonella typhi D Serratia marcescens

Last Answer : B Bacillus pumilus

Description : What are wastelands? -Geography

Last Answer : Wastelands refer to areas of land which are unused, empty, barren and unfit for cultivation and building. It is the result of neglect, excessive cultivation and sowing of crops over long periods of ... soil erosion which is caused by loss of fertile top soil by wind and water, deforestation etc.

Description : The following statement(s) is/are true concerning initial microbiologic diagnostic techniques. a. Appropriate expeditious transport of specimens to the microbiology laboratory is essential for obtaining accurate ... a 4-to 8-fold increase over the MIC to be considered clinically efficacious.

Last Answer : Answer: a, c, d Because most surgical infections are polymicrobial, specimens should be cultured for aerobic and anaerobic bacteria, as well as fungi. Although aerobic and aerotolerant ... fold increase over MIC during the peak serum level have been demonstrated to be clinically efficacious

Description : Cochineal insects have proved very useful for (a) cactus prevention (b) Eichhornia prevention (c) weeds control (d) Parthenium control.

Last Answer : (a) cactus prevention

Description : Read the following four statements (A-D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved useful ... . How many of the above statements are wrong? (a) Two (b) Three (c) Four (d) One

Last Answer : (B) Chikungunya is caused by a Gram negative bacterium.

Description : Treatment of the hazardous substances in the environment with the help of living organisms is called as a. Bioremediation b. Waste management c. Waste control d. Biodegradation

Last Answer : a. Bioremediation

Description : The most effective agents of bioremediation at ultra level will be a. Plants b. Worms c. Bacteria d. Insects

Last Answer : c. Bacteria

Description : . A common biocontrol agent for the control of plant diseases is (a) baculovirus (b) Bacillus thuringiensis (c) Glomus (d) Trichoderma.

Last Answer : (d) Trichoderma.

Description : Seed treatment is done to control— (A) Soil-borne disease (B) Air-borne disease (C) Seed-borne disease (D) None of these

Last Answer : (C) Seed-borne disease

Description : Seed treatment is done to control— a) Soil-borne disease b) Air-borne disease c) Seed-borne disease d) None of these

Last Answer : c) Seed-borne disease

Description : For reclamation of alkaline soil — is used. a. Lime b. Calcium carbonate c. Gypsum d. None of these

Last Answer : c. Gypsum

Description : Reclamation of saline soil which of the following practice is followed ? — a. Adequate drainage b. By good quality irrigation water c. Leaching of salts below root zone d. All of these

Last Answer : d. All of these

Description : For reclamation of alkali soil — weed powder is used. a. Phalerious minor b. Lantena camera c. Argemona maxicana d. Parthenuym sp.

Last Answer : c. Argemona maxicana

Description : The soil pH level primarily controls: a. Soil temperature b. Activity of soil-borne diseases c. Moisture absorption by roots d. Availability of essential plant nutrients

Last Answer : Availability of essential plant nutrients

Description : Which microorganism binds nitrogen to soil from nature ?

Last Answer : Bacteria are the only bacteria that secrete nitrogen from nature into the soil.

Description : Plant pathology is a. Study of algae b. Study of fungi c. Study of diseases in plants caused by pathogens d. Study of fossil plant

Last Answer : c. Study of diseases in plants caused by pathogens

Description : Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition? (a) Azotobacter (b) Aspergillus (c) Glomus (d) Trichoderma

Last Answer : (c) Glomus

Description : Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition ? (1) Trichoderma (2) Azotobacter (3) Aspergillus (4) Glomus

Last Answer : (4) Glomus

Description : Mushroom cultivation is not useful in (1) Biogas production (2) Biological control of crop diseases (3) Recycling of agricultural wastes (4) Preventing cancer

Last Answer : (2) Biological control of crop diseases Explanation: Mushroom cultivation has been found to coincide with decrease of incidents of breast cancer. Spent residues after cultivation could ... production; and agricultural waste recycling can be achieved through controlled cultivation of mushrooms.

Description : Mushroom cultivation is not useful in – (1) Biogas production (2) Biological control of crop diseases (3) Recycling of agricultural wastes (4) Preventing cancer

Last Answer : (2) Biological control of crop diseases

Description : Mushroom cultivation is not useful in (1) Biogas production (2) Biological control of crop diseases (3) Recycling of agricultural wastes (4) Preventing cancer

Last Answer : Biological control of crop diseases

Description : Why are they not using bioremediation on the Gulf oil spill ? Evidently these are naturally occuring microbes, available in powdered form, which feed on the oil and digest it into harmless compounds.

Last Answer : answer:I'm not a scientist, but the site you linked does say The microbes are simply mixed with water and sprayed on the oil as it reaches the calmer waters near shore or on shore itself. That could be ... before all the oil gets to the shore and it can get to the water that's under the surface.

Description : Which one has been genetically modified to help in bioremediation

Last Answer : Which one has been genetically modified to help in bioremediation A. Pseudomonas B. Xanthomonas C. Nitrosococcus D. Trichoderma

Description : One of the benefits of biofilms is _____. a. quorum sensing b. keeping aquariums clean c. bioremediation of toxic wastes d. production of oil

Last Answer : c. bioremediation of toxic wastes

Description : In bioremediation, bio-films are usually used a. At the source of pollutant b. After collection of pollutant c. After treatment of pollutant d. Before pollutant is produced

Last Answer : a. At the source of pollutant

Description : Which of the following can be used as a biocontrol agent in the treatment of plant disease? (a) Lactobacillus (b) Trichoderma (c) Chlorella (d) Anabaena

Last Answer : (b) Trichoderma

Description : What is reclamation disease in plant? -Biology

Last Answer : answer:

Description : Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism? (a) Crotalaria juncea (b) Cycas revoluta (c) Cicer arietinum (d) Casuarina equisetifolia

Last Answer : (d) Casuarina equisetifolia

Description : The soil, air and seed borne disease of wheat

Last Answer : Ans. Kernal bunt (Neovossia indica)

Description : The soil borne disease of rice

Last Answer : Ans. Sheath blight of rice (Rhizoctonia oryzae)

Description : Gnathostomiasis is important _________zoonosis of public health significance. C A. Air -borne B. Soil -borne C. Food -borne D. None of these

Last Answer : Food -borne

Description : Loose smut of wheat is — borne a. Internally seed borne b. Soil borne c. Air borne d. Externally seed borne

Last Answer : a. Internally seed borne

Description : The primary role of sulfasalazine in ulcerative colitis is: A. Suppression of enteroinvasive pathogens B. Control of acute exacerbations of the disease C. Maintenance of remission D. Both ‘B’ and ‘C’

Last Answer : C. Maintenance of remission

Description : In ____, FDA approved the use of irradiation to control pathogens in fresh and frozen red meats, such as beef, lamb, and pork. a. 1988 c. 1997 b. 1975 d. 1990

Last Answer : c. 1997

Description : Select the incorrect statement. (A) In a direct shear box test, the plane of shear failure is predetermined (B) Better control is achieved on the drainage of the soil in a triaxial compression ... compression test is uniform (D) Unconfined compression test can be carried out on all types of soils

Last Answer : Answer: Option D

Description : 38. “Increased diversity contributed to higher productivity” –was experimentally proved by ... b) David Tilman b) Paul Ehrlich c) Alexander Von Humbolt d) Robert May

Last Answer : b) David Tilman

Description : 18. “Increased diversity contributed to higher productivity” –was experimentally proved by ... a) David Tilman b) Paul Ehrlich c) Alexander Von Humbolt d) Robert May

Last Answer : a) David Tilman

Description : Nitrogen oxides produced from the emission of automibiles and power plants are the source of fine air borne particles which lead to:

Last Answer : Nitrogen oxides produced from the emission of automibiles and power plants are the source of fine air ... C. Wet acid deposition D. Industrial smog.

Description : Nitrogen oxides produced from the emission of automobiles and power plants are the source of fine air borne particles which lead to

Last Answer : Nitrogen oxides produced from the emission of automobiles and power plants are the source of fine air ... C. Industrial smog D. Wet acid deposition