On the Covariation of Chlorophyll Fluorescence and Photosynthesis Across Scales

Magney, Troy S.; Barnes, Mallory L.; Yang, Xi

doi:10.1029/2020gl091098

Cited by 139 publications

(110 citation statements)

References 57 publications

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“…The combination of SIF and ECOSTRESS satellite products has the potential to greatly advance our understanding of ecosystem GPP in relation to ET, and how environmental stresses, such as increased temperature and heatwaves, are likely to impact crop productivity at regional to global scales. Granted, there still remain several unanswered questions surrounding the quantity of information provided by SIF, whether the signal is primarily affected by changes in canopy architecture or if it is a direct product of biochemistry ( Magney et al , 2020 ). As these fundamental questions are answered, and with the addition of new satellite remote-sensing platforms to monitor SIF globally at high temporal resolution (i.e.…”

Section: Scaling From Plants To Ecosystem Reinforces the Complex Relamentioning

confidence: 99%

The effect of increasing temperature on crop photosynthesis: from enzymes to ecosystems

Moore

Meacham-Hensold

Lemonnier

et al. 2021

Journal of Experimental Botany

286

143

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As global land surface temperature continues to rise and heat wave events increase in frequency, duration and/or intensity, our key food and fuel cropping systems will likely face increased heat-related stress. A large volume of literature exists on exploring measured and modelled impacts of rising temperature on crop photosynthesis, from enzymatic responses within the leaf up to larger ecosystem scale responses that reflect seasonal and inter-annual crop responses to heat. This review discusses (i) how crop photosynthesis changes with temperature at the enzymatic scale within the leaf, (ii) how stomata and plant transport systems are affected by temperature, (iii) what features make a plant susceptible or tolerant to elevated temperature and heat stress, and (iv) how these temperature and heat effects compound at the ecosystem scale to affect crop yields. Throughout the review, we identify current advancements and future research trajectories that are needed to make our cropping systems more resilient to rising temperature and heat stress, which are both projected to occur due to current global fossil fuel emissions.

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Section: Scaling From Plants To Ecosystem Reinforces the Complex Relamentioning

confidence: 99%

The effect of increasing temperature on crop photosynthesis: from enzymes to ecosystems

Moore

Meacham-Hensold

Lemonnier

et al. 2021

Journal of Experimental Botany

286

143

View full text Add to dashboard Cite

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“…We suggest that the relationship between Chl a and the PSII hydration layer mechanistically explains these widespread processes and these molecular dynamics within the membrane become a limiting factor for ChlF at decreasing hydration levels. Future experiments that couple leaf-level physiology measurements to computational tools used to study the impact of structural alterations to biological systems (e.g., molecular dynamics) will likely help testing this hypothesis across scales (Porcar-Castell et al 2014, Magney et al 2020.…”

Section: Rchlf From Images and Chlf In Vivomentioning

confidence: 99%

The love-hate relationship between chlorophyll a and water in PSII affects fluorescence products

Beverly¹,

Ewers²

2021

Photosynt.

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We thank Rachel Shrode, Ethan Darling, Keegan Ferris, and Hunter Peterson for their invaluable help in plant care and data collection. We are also grateful to the University of Wyoming Williams Conservatory for access to their facilities. This research was supported by NSF grant #IOS-1547796. Abbreviations: Chl a -chlorophyll a molecule; Chl b -chlorophyll b molecule; ChlF -chlorophyll a fluorescence; Fm' -maximal fluorescence yield of the light-acclimated state; Fs -steady-state fluorescence yield; PPFD -photosynthetic photon flux density; RChlFcomputed value of fluorescence from FluorCAM; ФPSII -effective quantum yield of PSII photochemistry; ΨL -leaf water potential. Conflict of interest: The authors declare that they have no conflict of interest.

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“…Though the linear SIF-GPP relationship (Equation ( 3)) looks simple, the parameter k1 is not a constant in the real environment [42]. Previous work has also reported on the hyperbolic relationship between SIF and GPP [43,44].…”

Section: Conductance Methodsmentioning

confidence: 99%

Modeling Transpiration with Sun-Induced Chlorophyll Fluorescence Observations via Carbon-Water Coupling Methods

Feng

Liu

et al. 2021

Remote Sensing

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Successfully applied in the carbon research area, sun-induced chlorophyll fluorescence (SIF) has raised the interest of researchers from the water research domain. However, current works focused on the empirical relationship between SIF and plant transpiration (T), while the mechanistic linkage between them has not been fully explored. Two mechanism methods were developed to estimate T via SIF, namely the water-use efficiency (WUE) method and conductance method based on the carbon–water coupling framework. The T estimated by these two methods was compared with T partitioned from eddy covariance instrument measured evapotranspiration at four different sites. Both methods showed good performance at the hourly (R2 = 0.57 for the WUE method and 0.67 for the conductance method) and daily scales (R2 = 0.67 for the WUE method and 0.78 for the conductance method). The developed mechanism methods provide theoretical support and have a great potential basis for deriving ecosystem T by satellite SIF observations.

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On the Covariation of Chlorophyll Fluorescence and Photosynthesis Across Scales

Abstract: Recent advances in remote sensing of solar-induced chlorophyll fluorescence (SIF) have garnered wide interest from the biogeoscience and Earth system science communities, due to the observed linearity between SIF and gross primary productivity (GPP) at increasing spatiotemporal scales.

Cited by 139 publications

References 57 publications

The effect of increasing temperature on crop photosynthesis: from enzymes to ecosystems

The effect of increasing temperature on crop photosynthesis: from enzymes to ecosystems

The love-hate relationship between chlorophyll a and water in PSII affects fluorescence products

Modeling Transpiration with Sun-Induced Chlorophyll Fluorescence Observations via Carbon-Water Coupling Methods

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