Acclimation to Fluctuating Light Impacts the Rapidity of Response and Diurnal Rhythm of Stomatal Conductance

Matthews, Jack S A; Vialet-Chabrand, Silvère; Lawson, Tracy

doi:10.1104/pp.17.01809

Cited by 103 publications

(129 citation statements)

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“…Asymmetry of opening and closing responses has been reported with longer delays in opening or slower opening responses relative to closure (Vico et al ., ), which may indicate water conservation strategies rather than optimizing carbon gain (Vico et al ., ; McAusland et al ., ). However, stomatal responses also depend on the growth environment, including the influence of water status (Qu et al ., ; Haworth et al ., ) and lighting regime (Matthews et al ., ), illustrating further complexities.…”

Section: Determinants Of the Rapidity Of Gs Responsesmentioning

confidence: 98%

“…Asymmetry of opening and closing responses has been reported with longer delays in opening or slower opening responses relative to closure (Vico et al, 2011), which may indicate water conservation strategies rather than optimizing carbon gain (Vico et al, 2011;McAusland et al, 2016). However, stomatal responses also depend on the growth environment, including the influence of water status (Qu et al, 2016;Haworth et al, 2018) and lighting regime (Matthews et al, 2018), illustrating further complexities. It is worth remembering that the cost of stomatal movements, in terms of energy and solute requirements, could be too great if stomata responded continuously to environmental changes to maximize photosynthesis and water use efficiency.…”

Section: Biochemical Considerationsmentioning

confidence: 99%

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Speedy stomata, photosynthesis and plant water use efficiency

2018

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Contents Summary93I.Introduction93II.Influence of the speed of gs responses on A and Wi93III.Determinants of the rapidity of gs responses95IV.Conclusion97Acknowledgements97References97 Summary Stomatal movements control CO2 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.

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Section: Determinants Of the Rapidity Of Gs Responsesmentioning

confidence: 98%

Section: Biochemical Considerationsmentioning

confidence: 99%

Speedy stomata, photosynthesis and plant water use efficiency

2018

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“…However, most studies exploring the relationship between stomatal development or behaviour and photosynthesis have been conducted under non‐fluctuating (square wave) light. This represents a gap in our current knowledge that recent papers have begun to address (Vialet‐Chabrand et al ., ,b; Matthews et al , ).…”

Section: The Influence Of Stomatal Morphology On Gaseous Exchangementioning

confidence: 99%

The influence of stomatal morphology and distribution on photosynthetic gas exchange

et al. 2019

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Summary The intricate and interconnecting reactions of C3 photosynthesis are often limited by one of two fundamental processes: the conversion of solar energy into chemical energy, or the diffusion of CO2 from the atmosphere through the stomata, and ultimately into the chloroplast. In this review, we explore how the contributions of stomatal morphology and distribution can affect photosynthesis, through changes in gaseous exchange. The factors driving this relationship are considered, and recent results from studies investigating the effects of stomatal shape, size, density and patterning on photosynthesis are discussed. We suggest that the interplay between stomatal gaseous exchange and photosynthesis is complex, and that a disconnect often exists between the rates of CO2 diffusion and photosynthetic carbon fixation. The mechanisms that allow for substantial reductions in maximum stomatal conductance without affecting photosynthesis are highly dependent on environmental factors, such as light intensity, and could be exploited to improve crop performance.

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“…Stomatal size and density are important leaf traits that determine the maximum bounds of leaf gas exchange. While stomata open and close in response to diurnal changes in environmental factors such as light, temperature, and water availability (Prior et al 1997;Matthews et al 2018), stomatal morphology varies over longer time scales in response to climate and other environmental variation Hill et al 2015). The same is true for leaf area, since the climate influences the leaf boundary layer thickness and photosynthetic area (Wright et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Pinnule and Stomatal Size and Stomatal Density of Living and Fossil Bowenia and Eobowenia Specimens Give Insight into Physiology during Cretaceous and Eocene Paleoclimates

Hill

Watling

2019

International Journal of Plant Sciences

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Editor: Michael T. DunnPremise of research. This study compares the pinnule morphology of three fossil Bowenia species, one Eobowenia (fossil) species, and several Bowenia fossil pinnule fragments with the two extant Bowenia species.Methodology. Pinnule area, stomatal density, and size have been measured on fossil and extant specimens.Measures have been correlated with solar radiation and temperature to ascertain any correlations. Environment and climate variables have been chosen, as they have changed since the Eocene and Lower Cretaceous when the Australian and South American fossils were growing.Pivotal results. Two of the fossil Bowenia species and Eobowenia have significantly smaller pinnules than the living species, and all the fossils have relatively small and sparse stomata compared with the living species. Extant Bowenia pinnule area is positively correlated with daily radiation and temperature.Conclusions. Those fossil species with small pinnules likely lived in relatively dark environments where small pinnules aided the capture of sunflecks and/or facilitated light capture. The smaller and sparser stomata may have limited the potential sites for fungal invasion in the extremely humid growth conditions without hampering overall growth rates in the prevailing very high atmospheric CO 2 levels.

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Acclimation to Fluctuating Light Impacts the Rapidity of Response and Diurnal Rhythm of Stomatal Conductance

Cited by 103 publications

References 64 publications

Speedy stomata, photosynthesis and plant water use efficiency

Speedy stomata, photosynthesis and plant water use efficiency

The influence of stomatal morphology and distribution on photosynthetic gas exchange

Pinnule and Stomatal Size and Stomatal Density of Living and Fossil Bowenia and Eobowenia Specimens Give Insight into Physiology during Cretaceous and Eocene Paleoclimates

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