Endothecium, middle layer and tapetum in anther are derived from -a)Primary sporogenous layerb)Primary parital layerc)Bothd)None of the aboveCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

The endothecium, middle layer, and tapetum in the anther are derived from the primary parietal layer. Let's break down the explanation into bullet points:
Primary parietal layer:
- The primary parietal layer is the outermost layer of the anther wall.
- It is derived from the primary sporogenous cells during the development of the anther.
- The primary parietal layer gives rise to three important layers within the anther: endothecium, middle layer, and tapetum.
Endothecium:
- The endothecium is the innermost layer of the anther wall.
- It is derived from the primary parietal layer.
- The endothecium aids in the dehiscence (splitting open) of the anther during pollination.
Middle layer:
- The middle layer is located between the endothecium and tapetum.
- It is derived from the primary parietal layer.
- The middle layer provides support and nourishment to the developing pollen grains.
Tapetum:
- The tapetum is the innermost layer of the anther wall.
- It is derived from the primary parietal layer.
- The tapetum plays a crucial role in providing nutrients to the developing pollen grains.
Therefore, the correct answer is B: Primary parietal layer as the endothecium, middle layer, and tapetum in the anther are derived from the primary parietal layer.

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