What is the strengthening tissue in tracheids
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The strengthening tissue in tracheids is known as lignin. Lignin is a complex polymer that provides structural support and strength to tracheids, as well as other plant cells and tissues. It helps to reinforce the cell walls, making them more rigid and resistant to collapse or damage. Lignin also contributes to the water-conducting function of tracheids, as it helps to prevent the collapse of the cells under pressure.
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