The acceptance and rejection by continous dialogue between pollen grains and pistil mediated by chemical components of pollen and pistil result in

Options

A. Autogamy
B. Pollen- pistil interaction
C. Geitonogamy
D. Pollination

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the process that results from the continuous dialogue between pollen grains and the pistil, mediated by chemical components.

2. **Identifying Key Terms**: The key terms here are "pollen grains," "pistil," and "chemical components." This indicates a specific interaction that occurs during the fertilization process in flowering plants.

3. **Exploring the Options**:
- **Autogamy**: This refers to self-fertilization, where pollen from the same flower fertilizes its own ovules. This does not involve interaction between different flowers.
- **Pollen-Pistil Interaction**: This is the direct interaction between pollen grains and the pistil, which is crucial for fertilization. It involves chemical signaling that determines whether the pollen is accepted or rejected by the pistil.
- **Gaietanogamy**: This involves fertilization between genetically identical flowers, where pollen from one flower fertilizes the pistil of another genetically identical flower. This is not the primary focus of the question.
- **Pollination**: This is the process of transferring pollen from the anther to the pistil, but it does not specifically describe the acceptance or rejection process mediated by chemical components.

4. **Conclusion**: The option that best describes the continuous dialogue between pollen grains and the pistil, mediated by chemical components, is **Pollen-Pistil Interaction**.

5. **Final Answer**: The acceptance and rejection by continuous dialogue between pollen grains and pistil mediated by chemical components of pollen and pistil result in **Pollen-Pistil Interaction**.

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