hydathode


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hydathode

a gland occurring on the leaf edges of many plants and secreting water. see GUTTATION.
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The hydathodes, in the present case, the microscopic
Of course, the efficiency of this method is low, because the hydathode is always open but aperture diameter in comparison stomata is so less.
guttation The slow exudation of liquid water from the hydathodes of a leaf.
leaf such at trichome bases, stomatal openings, hydathodes (structures
Previous research has shown that water can diffuse into leaves through the cuticle [9,13], epidermal hydathodes [3], or absorbent trichomes [2, 21].
Venation is free, with visible veins regularly bifurcate at similar distances from the costa, ending in large hydathodes, not prominent but evident, mostly located in the margin sinuses (Fig.
When water uptake exceeds the rate of transpiration, water passes out of the plant in liquid form through leaf openings called hydathodes. This slow exudation of liquid water is called guttation.
Given adequate soil moisture levels and meteorological conditions, wounds from mowing and hydathodes on unmowed turfgrass leaves theoretically afford the possibility of exudation from each leaf.
Salt glands in grasses were first mentioned as such in the halophytic genus Spartina (Skelding & Winterbotham, 1939), but they had been previously described as hydathodes that secreted salt by Sutherland and Eastwood (1916).
The section Elapohglossum is the larger group of the genus with approximately 75% of the species, and is characterized by hydathodes absent, phyllopodia present, medium size blade, and stellate blade scales; the subsection Pachyglossa is characterized by subcoriaceous to coriaceous blade and minute and stellate blade scales (vs.
The section Hybrida is characterized by subulate and unrolled blade scales and hydathodes absent, and the subsection Hybrida is characterized principally by blackish blade scales (or absent) and present on costa and blade margin.