Advertisements
Advertisements
Question
With the help of a neat and labelled diagram explain VAM (vesicular arbuscular mycorrhizae).
Advertisements
Solution
VAM (vesicular arbuscular mycorrhizae):
(1) VAM is vesicular arbuscular mycorrhizae.
(2) In this, the hyphae live in the intercellular spaces of root cortex and send projections into the root cortical cells.
(3) These branches (inside the cell) may be swollen to form vesicles or become a finely branched mass, called arbuscules.
4) VAM (vesicular arbuscular mycorrhizae) is the symbiotic association between a fungus (Phycomycetes) and the root of the angiosperm plant. The fungus helps the plants to obtain the plant nutrients from the soil. In return, plant root serves as the habitat for them. They form a network of filaments and colonises in the root system.
APPEARS IN
RELATED QUESTIONS
How do organic farmers control pests?
Name and explain the type of interaction that exists in mycorrhizae and between cattle egret and cattle.
Give two examples of microbial pesticides with their hosts.
Why are the spores of Bacillus thuringiensis used as bioinsecticide?
Match the column A with B and rewrite correct pairs
| A | B | |
| I | Mycoherbicides | Cactoblastis |
| II | Bacterial herbicides | Alternaria |
| III | Insects as herbicides | Xanthomonas |
Which one of the following statements is WRONG in relation to transgenic Bt cotton plant?
Match the items in Column ‘A’ and Column ‘B’ and choose correct answer.
| Column I | Column II |
| A. Lady bird | i. Methano bacterium |
| B. Mycorrhiza | ii. Trichoderma |
| C. Biological control | iii. Aphids |
| D. Biogas | iv. Glomus |
The correct answer is:
What for Nucleopolyhydro viruses are being used now a days?
Many members of genus Glomus form a mycorrhizal association with plants. Elaborate how is this association beneficial to the plants.
Organic farmer use Trichoderma as biological control agents. Explain.
