Guttation, a water drop exuding from a leaf tip

- Image ID: B3KHA7
Martin Shields / Alamy Stock Photo
Image ID: B3KHA7
A water drop exuding from the tip of a corn plant seedling leaf Guttation occurs when water moves into a plant s roots at night when stomata are closed and transpiration can not occur Root pressure then forces water up the xylem and out of the plant at leaf tips and edges