which one of the following helps in asbsorption of phosphorus from soil by plants?

Options

A. Glomus
B. Rhizobium
C. Frankia
D. Anabaena

Answer

To solve the question "Which one of the following helps in absorption of phosphorus from soil by plants?", we can follow these steps:

### Step 1: Understand the Options
The options given are:
- A) Glomus
- B) Rhizobium
- C) Frankia
- D) Avena

### Step 2: Analyze Each Option
- **Glomus**: This is an endomycorrhizal fungus that forms a symbiotic relationship with the roots of higher plants. In this association, the plant provides carbohydrates to the fungus, and in return, the fungus enhances the plant's ability to absorb nutrients, particularly phosphorus, from the soil.

- **Rhizobium**: This is a genus of bacteria that forms symbiotic relationships with legumes to fix nitrogen from the atmosphere. It is not involved in phosphorus absorption.

- **Frankia**: Similar to Rhizobium, Frankia is a nitrogen-fixing actinobacteria that forms symbiotic relationships with certain plants, particularly actinorhizal plants. It also does not assist in phosphorus absorption.

- **Avena**: This is a genus of plants (oats) and does not specifically help in phosphorus absorption.

### Step 3: Identify the Correct Answer
From the analysis, we can conclude that:
- **Glomus** is the only option that helps in the absorption of phosphorus from the soil by forming a symbiotic relationship with plant roots.

### Final Answer
The correct answer is **A) Glomus**.

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