Sentences with word «stomates»

During transpiration, water vapor is released from the leaves through small pores or openings called stomates.

However, more atmospheric CO2 is predicted to increase crop biomass and subsequent yields, and reduce water use by allowing plant stomates to open over shorter periods, thus assimilating the same amount of atmospheric CO2 while conserving moisture (Cutforth et al. 2007).

It could be that we have reached a level of background tropospheric ozone that is intolerable to vegetation — or it could be the recently mandated addition of ethanol to gasoline, since trees are dying at a rapidly accelerating rate, annual crop yieldsare markedly reduced, and even ornamentals planted in good soil in pots with regular watering exhibit the characteristic damaged stomates on foliage indicative of exposure to ozone.

When plant water status drops below minimum levels required for cell functioning, stomates quickly close and carbon fixation thus stops.

Transpiration is the process of water evaporation through specialized openings in the leaves, called stomates.

Stomates are present in the leaf so that carbon dioxide — which the leaves use to make food by way of photosynthesis — can enter.

In addition, the longer the stomates remain open (to try to take in the additional CO2), the more vulnerable the tree becomes to water loss through evapotranspiration.

CAM plants are unique in that under drought conditions their stomates (leaf pores) are open at night rather than during the day (as is the case with most plants).