In fungi plant symbiotic association, the fungus symbiont absorb which nutrient from soil and passes it to the plants

Options

A. Nitrogen
B. Phosphorus
C. Magnese
D. Calcium

Answer

**Step-by-Step Solution:**

1. **Understanding Symbiotic Associations**: In the context of fungi and plants, we are dealing with a symbiotic relationship where both organisms benefit from each other. This type of association is commonly referred to as mycorrhizae.

2. **Function of the Fungus**: The fungus acts as a symbiont that helps the plant by absorbing nutrients from the soil. It has a vast network of hyphae that increases the surface area for absorption.

3. **Nutrient Absorption**: The primary nutrients that fungi absorb from the soil include various minerals. Among these, phosphorus is particularly significant because it is essential for plant growth and development.

4. **Nutrient Exchange**: In this mutualistic relationship, the plant provides organic molecules, such as sugars, to the fungus, which it produces through photosynthesis. In return, the fungus supplies the plant with water and essential nutrients, including phosphorus.

5. **Conclusion**: Based on the above points, the nutrient that the fungus symbiont absorbs from the soil and passes to the plants is phosphorus.

**Final Answer**: Phosphorus

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