The water cavity present in the xylem of maize stem vascular bundles is

Options

A. schizogenous
B. hydrolytic
C. lysigenous
D. schizo-lysigenous

Answer

To answer the question about the type of water cavity present in the xylem of maize stem vascular bundles, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about the water cavity in the xylem of maize stem vascular bundles. We need to identify the type of this water cavity.

2. **Identify Types of Water Cavities**: There are different types of water cavities in plants, and we need to explore them to find the correct one for maize.

3. **Schizogenous Cavity**: This type of cavity is formed by the enlargement of intercellular spaces or the separation of cells. An example of this is the oil duct in sunflower. However, this type is not found in maize.

4. **Hydrolytic Cavity**: The term "hydrolytic cavity" does not classify any known type of water cavity in plants, so this option can be disregarded.

5. **Lysigenous Cavity**: This cavity is formed through the lysis or degeneration of cells. It is seen in oil cavities of citrus plants. This is also not the correct type for maize.

6. **Schizo-lysigenous Cavity**: This type of cavity is formed partly by the separation of cells and partly by the degeneration of cells. This is the type of cavity found in the stem of maize.

7. **Conclusion**: The water cavity present in the xylem of maize stem vascular bundles is classified as a **schizo-lysigenous cavity**, also referred to as the proto xylem cavity.

### Final Answer:
The water cavity present in the xylem of maize stem vascular bundles is a **schizo-lysigenous cavity**.

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