Question

Vesicular Arbuscular Mycorrhiza(VAM) is important for:

• A. breaking of dormancy
• B. phosphate nutrition
• C. water uptake
• D. retarding flowering

Answer 1

The correct option is B

phosphate nutrition

Vesicular arbuscular mycorrhiza (VAM) is formed by the symbiotic association between certain genus of fungi and angiosperm roots. The characteristic feature of this fungi is that they colonise the root cortex forming a mycelial network and characteristic vesicles (bladder-like structure) and arbuscules (branched finger-like hyphae). These fungal associations help in increased uptake of phophate in usable form by the plant.