
Anthers dehisce by terminal pores in
A. Pea
B. Petunia
C. Datura
D. Solanum
Answer
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Hint: Anther dehiscence is the last function of the anther that releases the pollen grains. The endothecium tissue is responsible for the splitting of the anther. Endothecium is usually of one to several layers thick.
Step by step answer:Anther dehiscence is the last step of the anther that causes the release of pollen grains. This process includes:
1. Pollen differentiation
2. Floral development
3. Flower opening.
The anther wall breaks at a particular site. Usually, this site is placed between the locules of each theca and runs the length of the anther but in species, with poricidal anther dehiscence, it is instead a small pore. If the pollen is released from the anther through a split on the outer side this is extrorse dehiscence whereas if the pollen is released from the inner side, this is introrse dehiscence.
If the pollen is released through a split that is placed to the side, towards other anthers rather than towards the inside or outside of the flower this type of dehiscence is known as latrorse dehiscence.
Solanum is a large and diverse genus of flowering plants belonging to the family Solanaceae. Anther dehiscence is the last function of the anther that causes the release of pollen grains. Small pore causes the poricidal anther dehiscence. In Solanum, the anther dehisces by terminal pores.
So, the correct option is option D. Solanum.
Note: Dehiscence is the splitting at maturity along a built-in line of weakness in a plant structure in order to release its contents, and is common among fruits, anthers, and sporangia. Sometimes this involves the complete detachment of a part. Structures that open in this way are said to be dehiscent.
Step by step answer:Anther dehiscence is the last step of the anther that causes the release of pollen grains. This process includes:
1. Pollen differentiation
2. Floral development
3. Flower opening.
The anther wall breaks at a particular site. Usually, this site is placed between the locules of each theca and runs the length of the anther but in species, with poricidal anther dehiscence, it is instead a small pore. If the pollen is released from the anther through a split on the outer side this is extrorse dehiscence whereas if the pollen is released from the inner side, this is introrse dehiscence.
If the pollen is released through a split that is placed to the side, towards other anthers rather than towards the inside or outside of the flower this type of dehiscence is known as latrorse dehiscence.
Solanum is a large and diverse genus of flowering plants belonging to the family Solanaceae. Anther dehiscence is the last function of the anther that causes the release of pollen grains. Small pore causes the poricidal anther dehiscence. In Solanum, the anther dehisces by terminal pores.
So, the correct option is option D. Solanum.
Note: Dehiscence is the splitting at maturity along a built-in line of weakness in a plant structure in order to release its contents, and is common among fruits, anthers, and sporangia. Sometimes this involves the complete detachment of a part. Structures that open in this way are said to be dehiscent.
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