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प्रश्न
How do mycorrhizal fungi help the plants harbouring them?
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उत्तर
The mycorrhizal fungi absorb phosphorus from the soil and transfer them to the host cells. They also impart resistance to host plants against root pathogens. They also help plants tolerate salinity and drought.
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संबंधित प्रश्न
Find out the role of microbes in the following:
Soil
Define biofertilizers. Give two types of fungal biofertilizers
Explain the interrelationship between organic farming and biofertilizers, with the help of any three suitable examples.
Identify free-living bacterial bio-fertilizer.
State any three benefits of mycorrhiza.
Identify the CORRECT statement regarding Ectomycorrhizae.
Match the Column I (Organisms) with the Column II (Products they produce) and select the correct option.
| Column I | Column II | ||
| i. | Lactobacillus | p. | Cheese |
| ii. | Saccharomyces cerevisiae | q. | Curd |
| iii. | Aspergillus niger | r. | Citric Acid |
| iv | Acetobacter aceti | s. | Bread |
| t. | Acetic Acid |
By application of ____________ yield of paddy field can be increased.
Which of the following is/are symbiotic nitrogen fixing microbe?
The biological agent which is used to kill or check proliferation of disease causing agents is called ____________.
Which of the following symbiotic microorganisms is nitrogen-fixing?
Farmers are often suggested to use the following organism in their crop land so as to improve the soil fertility. Explain.
Rhizobium
Match the pairs:
| Column A | Column B | ||
| (i) | Compost making biofertilizer |
(a) | Azotobacter |
| (ii) | N2 fixing biofertilizer | (b) | Mycorrhiza |
| (iii) | Fungal biofertilizer | (c) | Agrobacterium |
| (iv) | Phosphate solubilizing biofertilizer |
(d) | Actinobocteria |
Which one of the following statement is correctly matched?
Azolla is used as biofertiliser because it ______.
How many of the following are the symbiotic nitrogen fixing micro-organisms?
Rhizobium, Anabaena, Frankia, Azotobacter, Nostoc, Clostridium, Beijerinckia, Klebsiella
Which of the following bacteria do not solubilize the insoluble rock phosphate?
Endomycorrhizae grow in ______ of higher plants.
