Each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells.
〔植〕保卫细胞
Example sentencesExamples
The inner anticlinal wall of the guard cell is the ventral wall.
Major questions therefore remain unanswered on how water stress signals perceived at root and leaf locations are integrated at the guard cell to control stomatal behaviour.
This will reduce the apoplastic pH and allow the uptake of K + and other ions into the guard cells so that, when aquaporins are opened, water will flow into the guard cell to initiate stomatal opening.
The best documented system so far is the stomatal guard cell where two anion channels from the plasma membrane have been extensively characterized.
Of the various cell types that have been used to study stimulus-induced oscillations in [Ca 2 +] cyt, the guard cell has emerged as the most intensively used system.
Definition of guard cell in US English:
guard cell
noun
Botany
Each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells.
〔植〕保卫细胞
Example sentencesExamples
The inner anticlinal wall of the guard cell is the ventral wall.
This will reduce the apoplastic pH and allow the uptake of K + and other ions into the guard cells so that, when aquaporins are opened, water will flow into the guard cell to initiate stomatal opening.
The best documented system so far is the stomatal guard cell where two anion channels from the plasma membrane have been extensively characterized.
Major questions therefore remain unanswered on how water stress signals perceived at root and leaf locations are integrated at the guard cell to control stomatal behaviour.
Of the various cell types that have been used to study stimulus-induced oscillations in [Ca 2 +] cyt, the guard cell has emerged as the most intensively used system.