, Volume 235, Issue 1-4, pp 101-105,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 15 Jan 2009

Distribution and function of epistomatal mucilage plugs


Investigation of 67 gymnosperm and angiosperm species belonging to 25 orders shows that epistomatal mucilage plugs are a widespread phenomenon. Measurements of the leaf water status by using the leaf patch clamp pressure technique suggest that the mucilage plugs are involved in moisture uptake and buffering leaf cells against complete turgor pressure loss at low humidity.