Question
Download Solution PDFAn oily layer, synthesized by the plastids of the anther tapetum, mostly during the tetrad stage is called
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- Pollenkitt is an oily layer synthesized by the plastids of the anther tapetum, mostly during the tetrad stage of pollen development. It plays a critical role in pollen-pistil interactions, including the attraction of pollinators and protection of pollen grains.
- Pollenkitt contains lipids, carotenoids, flavonoids, and other compounds that provide the sticky texture and vibrant color, which are essential for the adhesion and transport of pollen.
- Sporopollenin is a major component of the outer wall (exine) of pollen grains. It is one of the most chemically inert biological polymers, providing resistance to environmental stress and degradation. However, it is not an oily layer synthesized by the anther tapetum.
- Orbicules, also known as Ubisch bodies, are small granules found on the inner walls of the anther locules. They are involved in the transport of sporopollenin to the developing pollen exine, not in the formation of an oily layer.
- Tryphine refers to the mixture of proteins and lipids present on the surface of pollen grains, particularly in species with dry pollen. It aids in pollen-stigma interactions but is not the oily layer synthesized by the anther tapetum.
Last updated on May 30, 2025
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