The impacts of fluctuating light on crop performance

Rebecca A. Slattery, Berkley J. Walker, Andreas P.M. Weber, Donald R. Ort

Research output: Contribution to journalArticle

Abstract

Rapidly changing light conditions can reduce carbon gain and productivity in field crops because photosynthetic responses to light fluctuations are not instantaneous. Plant responses to fluctuating light occur across levels of organizational complexity from entire canopies to the biochemistry of a single reaction and across orders ofmagnitude of time. Although light availability and variation at the top of the canopy are largely dependent on the solar angle and degree of cloudiness, lower crop canopies rely more heavily on light in the form of sunflecks, the quantity of which depends mostly on canopy structure but also may be affected by wind. The ability of leaf photosynthesis to respond rapidly to these variations in light intensity is restricted by the relatively slow opening/ closing of stomata, activation/deactivation of C3 cycle enzymes, and up-regulation/down-regulation of photoprotective processes. The metabolic complexity of C4 photosynthesis creates the apparently contradictory possibilities that C4 photosynthesis may be both more and less resilient than C3 to dynamic light regimes, depending on the frequency at which these light fluctuations occur. We review the current understanding of the underlying mechanisms of these limitations to photosynthesis in fluctuating light that have shown promise in improving the response times of photosynthesis-related processes to changes in light intensity.

Original languageEnglish (US)
Pages (from-to)990-1003
Number of pages14
JournalPlant physiology
Volume176
Issue number2
DOIs
StatePublished - Feb 2018

Fingerprint

Light
Photosynthesis
crops
canopy
C4 photosynthesis
photosynthesis
light intensity
field crops
stomata
biochemistry
plant response
Aptitude
photoperiod
Biochemistry
Reaction Time
carbon
Up-Regulation
Carbon
Down-Regulation
enzymes

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science

Cite this

Slattery, R. A., Walker, B. J., Weber, A. P. M., & Ort, D. R. (2018). The impacts of fluctuating light on crop performance. Plant physiology, 176(2), 990-1003. https://doi.org/10.1104/pp.17.01234

The impacts of fluctuating light on crop performance. / Slattery, Rebecca A.; Walker, Berkley J.; Weber, Andreas P.M.; Ort, Donald R.

In: Plant physiology, Vol. 176, No. 2, 02.2018, p. 990-1003.

Research output: Contribution to journalArticle

Slattery, RA, Walker, BJ, Weber, APM & Ort, DR 2018, 'The impacts of fluctuating light on crop performance', Plant physiology, vol. 176, no. 2, pp. 990-1003. https://doi.org/10.1104/pp.17.01234
Slattery, Rebecca A. ; Walker, Berkley J. ; Weber, Andreas P.M. ; Ort, Donald R. / The impacts of fluctuating light on crop performance. In: Plant physiology. 2018 ; Vol. 176, No. 2. pp. 990-1003.
@article{7762f81a01fe4ea7b7648cb3fbd068c0,
title = "The impacts of fluctuating light on crop performance",
abstract = "Rapidly changing light conditions can reduce carbon gain and productivity in field crops because photosynthetic responses to light fluctuations are not instantaneous. Plant responses to fluctuating light occur across levels of organizational complexity from entire canopies to the biochemistry of a single reaction and across orders ofmagnitude of time. Although light availability and variation at the top of the canopy are largely dependent on the solar angle and degree of cloudiness, lower crop canopies rely more heavily on light in the form of sunflecks, the quantity of which depends mostly on canopy structure but also may be affected by wind. The ability of leaf photosynthesis to respond rapidly to these variations in light intensity is restricted by the relatively slow opening/ closing of stomata, activation/deactivation of C3 cycle enzymes, and up-regulation/down-regulation of photoprotective processes. The metabolic complexity of C4 photosynthesis creates the apparently contradictory possibilities that C4 photosynthesis may be both more and less resilient than C3 to dynamic light regimes, depending on the frequency at which these light fluctuations occur. We review the current understanding of the underlying mechanisms of these limitations to photosynthesis in fluctuating light that have shown promise in improving the response times of photosynthesis-related processes to changes in light intensity.",
author = "Slattery, {Rebecca A.} and Walker, {Berkley J.} and Weber, {Andreas P.M.} and Ort, {Donald R.}",
year = "2018",
month = "2",
doi = "10.1104/pp.17.01234",
language = "English (US)",
volume = "176",
pages = "990--1003",
journal = "Plant Physiology",
issn = "0032-0889",
publisher = "American Society of Plant Biologists",
number = "2",

}

TY - JOUR

T1 - The impacts of fluctuating light on crop performance

AU - Slattery, Rebecca A.

AU - Walker, Berkley J.

AU - Weber, Andreas P.M.

AU - Ort, Donald R.

PY - 2018/2

Y1 - 2018/2

N2 - Rapidly changing light conditions can reduce carbon gain and productivity in field crops because photosynthetic responses to light fluctuations are not instantaneous. Plant responses to fluctuating light occur across levels of organizational complexity from entire canopies to the biochemistry of a single reaction and across orders ofmagnitude of time. Although light availability and variation at the top of the canopy are largely dependent on the solar angle and degree of cloudiness, lower crop canopies rely more heavily on light in the form of sunflecks, the quantity of which depends mostly on canopy structure but also may be affected by wind. The ability of leaf photosynthesis to respond rapidly to these variations in light intensity is restricted by the relatively slow opening/ closing of stomata, activation/deactivation of C3 cycle enzymes, and up-regulation/down-regulation of photoprotective processes. The metabolic complexity of C4 photosynthesis creates the apparently contradictory possibilities that C4 photosynthesis may be both more and less resilient than C3 to dynamic light regimes, depending on the frequency at which these light fluctuations occur. We review the current understanding of the underlying mechanisms of these limitations to photosynthesis in fluctuating light that have shown promise in improving the response times of photosynthesis-related processes to changes in light intensity.

AB - Rapidly changing light conditions can reduce carbon gain and productivity in field crops because photosynthetic responses to light fluctuations are not instantaneous. Plant responses to fluctuating light occur across levels of organizational complexity from entire canopies to the biochemistry of a single reaction and across orders ofmagnitude of time. Although light availability and variation at the top of the canopy are largely dependent on the solar angle and degree of cloudiness, lower crop canopies rely more heavily on light in the form of sunflecks, the quantity of which depends mostly on canopy structure but also may be affected by wind. The ability of leaf photosynthesis to respond rapidly to these variations in light intensity is restricted by the relatively slow opening/ closing of stomata, activation/deactivation of C3 cycle enzymes, and up-regulation/down-regulation of photoprotective processes. The metabolic complexity of C4 photosynthesis creates the apparently contradictory possibilities that C4 photosynthesis may be both more and less resilient than C3 to dynamic light regimes, depending on the frequency at which these light fluctuations occur. We review the current understanding of the underlying mechanisms of these limitations to photosynthesis in fluctuating light that have shown promise in improving the response times of photosynthesis-related processes to changes in light intensity.

UR - http://www.scopus.com/inward/record.url?scp=85041715279&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85041715279&partnerID=8YFLogxK

U2 - 10.1104/pp.17.01234

DO - 10.1104/pp.17.01234

M3 - Article

C2 - 29192028

AN - SCOPUS:85041715279

VL - 176

SP - 990

EP - 1003

JO - Plant Physiology

JF - Plant Physiology

SN - 0032-0889

IS - 2

ER -