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Which one of the following help in absorption of phosphorus from soil by plants?

1. Glomus
2. Rhizobium
3. Frankia
4. Anabaena

Correct answer: Glomus

Solution

Glomus is an arbuscular mycorrhizal fungus that lives in association with plant roots and greatly improves phosphorus absorption. The other options are nitrogen-fixing microbes, not primarily phosphate-uptake helpers.

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