Photosynthesis and Stomatal Behaviour

By T. Lawson, S. von Caemmerer, I. Baroli. 2010

140 citations recorded by the source corpus.

In order for plants to use water efficiently, stomata must ensure an appropriate balance between CO2 demands for photosynthesis and water loss through transpiration. To achieve this, stomatal conductance (gs) often correlates with mesophyll photosynthetic rates. However, the underlying mechanisms and signals that promote this relationship are currently unknown. Stomata and photosynthesis respond to a number of environmental cues; however, the dynamics and magnitude of these responses are not identical, with stomatal responses generally an order of magnitude slower than mesophyll photosynthesis. The resulting disconnection between stomatal conductance and photosynthetic rate means that under naturally fluctuating environmental conditions water use efficiency (WUE) can be far from optimal. Manipulation of stomatal behaviour provides an obvious mechanism for producing plants with improved WUE; however, before such an approach is possible we must first understand the hierarchy of stomatal responses to varying environmental parameters, the mechanisms behind these complex signalling pathways, and how stomatal behaviour is tuned to mesophyll photosynthetic rates or capacity.

Subfields: Ecology, Evolution, Behavior and Systematics, Global and Planetary Change, Plant Science

View Paper: https://www.semanticscholar.org/paper/248903c7559e90676526b2a3cbb6deb2ede57e20

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Ecology, Evolution, Behavior and Systematics

1. F. Valladares
2. Peter Franks
3. U. Niinemets
4. L. Gómez‐Aparicio

In Global and Planetary Change

1. F. Valladares
2. I. Aranda
3. Peter Franks
4. B. Cuesta
5. Alicia Forner
6. P. Grubb

In Plant Science

1. I. Aranda
2. Peter Franks
3. B. Cuesta
4. Alicia Forner
5. F. Valladares
6. U. Niinemets

Citations in the corpus

• Species-specific water use by forest tree species: from the tree to the stand (2012, background): “The need of controlling water losses by a fine tuning of leaf stomatal regulation has been, as in other kind of plants, one of the most important selective forces of evolution of forest tree species (Franks and Beerling, 2009; Lawson et al., 2011).”
• Smaller, faster stomata: scaling of stomatal size, rate of response, and stomatal conductance (2013, background): “An important limitation in this process is the rate at which stomata open in the light or close under darkness or water deficit (Cowan, 1977; Hetherington and Woodward, 2003; Franks and Farquhar, 2007; Brodribb et  al., 2009; Lawson et  al., 2011; Vico et  al., 2011).”