The control of gaseous exchange between the leaf and external atmosphere is governed by
stomatal conductance (gs); therefore, stomata play a critical role in photosynthesis and …

Stomata are valves on the leaf surface controlling carbon dioxide (CO2) influx for
photosynthesis and water loss by transpiration. Thus, plants have to evolve elaborate …

Drought is one of the primary abiotic stresses, seriously implicating plant growth and
productivity. Stomata play a crucial role in regulating drought tolerance. However, the …

Sugars are the main carbon and energy source in cells, but they can also act as signaling
molecules that affect the whole plant life cycle. Certain tissues can produce sugars and …

Guard cells on the leaf epidermis regulate stomatal opening for gas exchange between
plants and the atmosphere, allowing a balance between photosynthesis and transpiration …

The control of stomatal aperture involves reversible changes in the concentration of
osmolytes in guard cells. Sucrose has long been proposed to have an osmolytic role in …

Stomatal control of transpiration is critical for maintaining important processes, such as plant
water status, leaf temperature, as well as permitting sufficient CO2 diffusion into the leaf to …

Contents Summary 1018 I. Introduction 1018 II. Guard cell photosynthesis 1019 III. Guard
cell central metabolism 1022 IV. Guard cell starch metabolism differs from that of mesophyll …

Increasing worldwide demand for food, feed and fuel presents a challenge in light of limited
resources and climatic challenges. Breeding for stress tolerance and drought tolerance, in …

It has long been recognized that stomatal movement modulates CO2 availability and as a
consequence the photosynthetic rate of plants, and that this process is feedback-regulated …