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Speedy stomata, photosynthesis and plant water use efficiency
Author(s) -
Lawson Tracy,
VialetChabrand Silvère
Publication year - 2019
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/nph.15330
Subject(s) - transpiration , photosynthesis , water use efficiency , environmental science , agronomy , biology , productivity , botany , economics , macroeconomics
ContentsSummary 93 I. Introduction 93 II. Influence of the speed of g s responses on A and W i 93 III. Determinants of the rapidity of g s responses 95 IV. Conclusion 97Acknowledgements 97References 97Summary Stomatal movements control CO 2 uptake for photosynthesis and water loss through transpiration, and therefore play a key role in plant productivity and water use efficiency. The predicted doubling of global water usage by 2030 mean that stomatal behaviour is central to current efforts to increase photosynthesis and crop yields, particularly under conditions of reduced water availability. In the field, slow stomatal responses to dynamic environmental conditions add a temporal dimension to gaseous fluxes between the leaf and atmosphere. Here, we review recent work on the rapidity of stomatal responses and present some of the possible anatomical and biochemical mechanisms that influence the rapidity of stomatal movements.