Yes, pits can have lignin, specifically in the torus of bordered pits.
Lignin in Pits: Detailed Explanation
Pits are essentially thin areas or cavities found in the primary cell walls of plants. They facilitate communication and transport between adjacent cells. There are different types of pits, including simple and bordered pits.
The provided reference highlights the crucial role of lignin in bordered pits:
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Bordered Pits: These pits feature a specialized structure called the torus.
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Torus and Lignin: The torus is a thickening located in the aperture of the bordered pit. Critically, this torus is characterized by the deposition of lignin.
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Function: The lignified torus plays a key role in regulating the functional activities of the pit, likely by controlling the flow of fluids and preventing the spread of pathogens.
In summary, while not all parts of a pit are necessarily lignified, the torus within bordered pits contains lignin, which contributes to the pit's overall function.
