stoma

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Related to guard cell: photosynthesis
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Synonyms for stoma

a minute epidermal pore in a leaf or stem through which gases and water vapor can pass

a mouth or mouthlike opening (especially one created by surgery on the surface of the body to create an opening to an internal organ)

References in periodicals archive ?
endoplasmic reticulum (ER) and a rough Guard cells .
3073 LGC = Length of guard cells WGC = Width of guard cell *** = extremely significant ** = Very significant * = Significant t' value at 18 d.
2A, 2B) or may remain the same width as the rest of the guard cell (Fig.
ABA is synthesized following turgor deficiency and stimulates NO synthesis in stomata guard cells.
If there is not enough water available to the plant, all the guard cells become flaccid as the leaf wilts.
The proton pump of guard cells was reported in the Nov.
Stomata respond to the concentration of ABA in the guard cell apoplast (Harris and Outlaw, 1991; Hornberg and Weiler, 1984; Anderson et al.
Intrinsic water use efficiency did not change significantly over time, suggesting that it may not respond to changes in CO2 concentrations over the lifetimes of individual trees, possibly because of compensating changes in stomatal density and guard cell size.
In this paper, chloroplast numbers of stomatal guard cells are considered.
The number of stomata per unit area was 4, all the stomata were open and no closed stomata were present, the average length of guard cells was 27.
Other than affecting the bulliform cells, water deficit also causes the guard cells to lose their turgor pressure [66], thus leading to stomatal closure [67].
A rare abnormality in some grasses can result in axial GMC division, so that the resulting two (non-functional) guard cells are proximal-distal to each other (Stebbins & Shah, 1960), suggesting that a stabilized mutation could be responsible for the evolution of short-cell pairs.
The guard cells regulate the opening of the stomates, and the guard cells are controlled by the water potential of the leaf.
The stomata are sunken and syndetocheilic, in which the subsidiary cells surround guard cells and are above them.