The epidermis is crucial for plant survival because it provides a protective barrier against environmental stressors.
Here's a breakdown of its importance:
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Protection against mechanical injury: The epidermis acts as the first line of defense, shielding the plant from physical damage.
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Prevention of water loss: The epidermis is often covered with a waxy cuticle, which significantly reduces water evaporation from the plant's surface, helping it to survive in dry environments.
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Defense against infection: The epidermis prevents pathogens like bacteria and fungi from easily entering the plant tissues.
In essence, the epidermis is a vital outer layer that protects the plant from damage, desiccation, and disease, enabling it to thrive in various environments.