Cited by 68Photosynthetic Processes and MechanismsLight effects on plantsPlant Stress Responses and Tolerance

Chloroplast movement provides photoprotection to plants by redistributing PSII damage within leaves

Davis, Phillip A., Hangarter, Roger P.·2012·Photosynthesis Research

Abstract

Plants use light to fix carbon through the process of photosynthesis but light also causes photoinhibition, by damaging photosystem II (PSII). Plants can usually adjust their rate of PSII repair to equal the rate of damage, but under stress conditions or supersaturating light-intensities damage may exceed the rate of repair. Light-induced chloroplast movements are one of the many mechanisms plants have evolved to minimize photoinhibition. We found that chloroplast movements achieve a measure of photoprotection to PSII by altering the distribution of photoinhibition through depth in leaves. When chloroplasts are in the low-light accumulation arrangement a greater proportion of PSII damage occurs near the illuminated surface than for leaves where the chloroplasts are in the high-light avoidance arrangement. According to our findings chloroplast movements can increase the overall efficiency of leaf photosynthesis in at least two ways. The movements alter light profiles within leaves to maximize photosynthetic output and at the same time redistribute PSII damage throughout the leaf to reduce the amount of inhibition received by individual chloroplasts and prevent a decrease in photosynthetic potential.

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Crossref · 10.1007/s11120-012-9755-4

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  • In most plants, blue light is the most effective wavelength for inducing the two reactions of chloroplast motility, including in angiosperms and cryptogamic plants.

    “In most plants, blue light is the most effective wavelength for inducing two reactions of chloroplast motility, including in angiosperms (e.g., Arabidopsis, spinach, tobacco) (Davis and Hangarter, 2012) and cryptogamic plants (e.g., ferns, mosses, lichens, algae) (Suetsugu and Wada, 2007b).”
  • Chloroplasts build up along the anticlinal wall, decreasing the incidence of high-fluence blue light damage, which is the avoidance response.

    “chloroplasts build up along the anticlinal wall, decreasing the incidence of high-fluence blue light damage (avoidance response)”

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Authors
Davis, P. A., & Hangarter, R. P.
Affiliations
Indiana University Bloomington (US)
Corresponding author
Davis, Phillip A.
Venue
Photosynthesis Research
Published
2012-06-14
Volume
112
Issue
3
Pages
153-161
ISSN
  • 0166-8595 (ISSN-L)
  • 1573-5079
OpenAlex
W2093413274
Cited by
68
References
48
Citations by year
2026: 2 · 2025: 5 · 2024: 5 · 2023: 4 · 2022: 5 · 2021: 7 · 2020: 3 · 2019: 5 · 2018: 6 · 2017: 9 · 2016: 4 · 2015: 5 · 2014: 4 · 2013: 3 · 2012: 1
FWCI
1.67
Type
journal article
Language
en
Open access
closed
Locations
  • Photosynthesis Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Science Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Light effects on plants
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
Keywords
chloroplast movement, photoprotection, photoinhibition, photosystem II damage, PSII repair, photosynthetic efficiency, leaf photosynthesis
MeSH terms
Chlorophyll, Chloroplasts, Light, Lincomycin, Mutation, Photosynthesis, Protein Synthesis Inhibitors, Arabidopsis, Plant Leaves, Photosystem II Protein Complex

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