Developmentally, they are divided into agenous, mesogenous, and perigenous varieties; in the last of which, as with grasses, they are unrelated to surrounding tissue. In dicots, anisocytic ones are surrounded by three subsidiary cells and they are produced from a sequence of two unequal cell divisions. They move in response to a loss of chloride and potassium after the release of abscisic acid triggered by the roots. Their most famous role involves a mechanism that uses PEP carboxylase, prevents photorespiration, and minimizes water loss, in which they open only at nig
Developmentally, they are divided into agenous, mesogenous, and perigenous varieties; in the last of which, as with grasses, they are unrelated to surrounding tissue. In dicots, anisocytic ones are surrounded by three subsidiary cells and they are produced from a sequence of two unequal cell divisions. They move in response to a loss of chloride and potassium after the release of abscisic acid triggered by the roots. Their most famous role involves a mechanism that uses PEP carboxylase, prevents photorespiration, and minimizes water loss, in which they open only at night in CAM plants. FTP, identify these pores used by leaves for gas exchange.
Developmentally, they are divided into agenous, mesogenous, and perigenous varieties; in the last of which, as with grasses, they are unrelated to surrounding tissue.
{stoma} (or {stomate}; or {stomata})