Question
Download Solution PDFWhich of the following is not true of elaters?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Elaters are formed from meiotic divisions of spore mother cells.
Concept:
- Elaters are specialized structures in some plants, particularly liverworts and horsetails, that aid in the dispersal of spores.
- They are often hygroscopic, meaning they can change shape in response to moisture levels, which helps in spore release and dispersal.
- Elaters are typically non-reproductive and do not form from meiotic divisions; instead, they are formed from the cells of the sporophyte or gametophyte.
Explanation:
- Elaters help in dehiscence and dispersal of spores: This statement is true. Elaters assist in the opening of spore capsules (dehiscence) and help in the dispersal of spores by changing shape in response to humidity.
- They are spindle-shaped, having spiral thickenings: This is also true. Elaters are often spindle-shaped and have spiral thickenings that aid in their function of spore dispersal.
- They are hygroscopic: Correct. Elaters are hygroscopic, meaning they respond to changes in humidity, which helps in the dispersal of spores.
- Elaters are formed from meiotic divisions of spore mother cells: This is the incorrect statement. Elaters are not formed from meiotic divisions; they are usually formed from the cells of the sporophyte or gametophyte and are non-reproductive structures.
Last updated on May 30, 2025
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