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
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
In this paper, chloroplast numbers of stomatal guard cells
The shape of the guard cells
together and also the relation between polar and equatorial diameters of the stomata are indicative of its functionality (Rocha et al.
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
Other than affecting the bulliform cells, water deficit also causes the guard cells
to lose their turgor pressure , thus leading to stomatal closure .
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.