To remove moisture from between soil granules. Long extensions on the root hair cells spread out between soil granules. The surface area for water to enter cells is increased by root hairs in the cells.
The root hairs, which are cylindric extensions of the root epidermal cells, play a crucial role in nutrient acquisition, microbial interactions, and plant anchorage. This article reviews the molecular mechanisms underlying the specification, differentiation, and physiology of root hairs in Arabidopsis.
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