5 Questions
What is the process through which microspores are formed from a pollen mother cell?
Microsporogenesis
What is the arrangement of microspores as they are formed?
In a cluster of four cells known as a microspore tetrad
What happens to the microspores as the anthers mature and dehydrate?
They dissociate from each other and develop into pollen grains
Where are the microspores or pollen grains formed before their release with the dehiscence of the anther?
Inside each microsporangium
In what way do microspores differ from pollen grains?
Microspores are precursors of pollen grains
Study Notes
Microsporogenesis
- Each cell in sporogenous tissue has the potential to become a microspore mother cell, which can develop into a pollen or microspore mother cell.
- Microsporogenesis is the process by which a pollen mother cell (PMC) undergoes meiosis to form microspores.
Microspore Tetrad
- The microspores formed through microsporogenesis are arranged in a cluster of four cells, known as the microspore tetrad.
- Each microspore in the tetrad has the potential to develop into a pollen grain.
Pollen Grain Development
- As anthers mature and dehydrate, the microspores dissociate from each other and develop into pollen grains.
- Thousands of microspores or pollen grains are formed inside each microsporangium.
- The pollen grains are released when the anther dehisces.
Learn about the process of microsporogenesis in plant reproduction, where microspores are formed from a pollen mother cell through meiosis. Understand how microspores develop into pollen grains within the anthers.
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