Hydathode is a plant organ responsible for guttation in vascular plants, i.e. the release of droplets at leaf margin or surface. Because this organ connects the plant vasculature to the external environment, it is also a known entry site for several vascular pathogens.

What is hydathodes and function?

Hydathodes are the structures that discharge water from the interior of the leaf to its surface in a process called guttation. ... It is thought that guttation is a necessary process to absorb solutes when transpiration is suppressed.

Where are hydathodes found?

Hydathodes are located along the margin and on the adaxial or abaxial surfaces of leaves and consist of the pore, transfer or epithem cells, and a junction of xylem vessels or xylem endings beneath the pore (Chen & Chen, 2005. -C., & Chen, Y.