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An ancient light-harvesting protein is critical for the regulation of algal photosynthesis

Author

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  • Graham Peers

    (University of California, Berkeley, California 94720-3102, USA
    Present address: Synthetic Genomics, Inc., 11149 North Torrey Pines Road, Suite 100, La Jolla, California 92037, USA.)

  • Thuy B. Truong

    (University of California, Berkeley, California 94720-3102, USA
    Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA)

  • Elisabeth Ostendorf

    (Institute of Plant Biochemistry and Biotechnology, University of Münster)

  • Andreas Busch

    (Institute of Plant Biochemistry and Biotechnology, University of Münster)

  • Dafna Elrad

    (Carnegie Institution, Stanford, California 94305, USA)

  • Arthur R. Grossman

    (Carnegie Institution, Stanford, California 94305, USA)

  • Michael Hippler

    (Institute of Plant Biochemistry and Biotechnology, University of Münster)

  • Krishna K. Niyogi

    (University of California, Berkeley, California 94720-3102, USA
    Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA)

Abstract

The bright lights Although algae and plants need plenty of light for photosynthesis, too much of it can be harmful, causing severe oxidative damage and even cell death. Rapid regulation of photosynthetic light harvesting provides a safety valve for photosynthesis via feedback-regulated de-excitation of chlorophyll molecules in photosystem II. Little is known about the mechanism of this defence system in eukaryotic algae. Now a study using mutants of the unicellular alga Chlamydomonas reinhardtii lacking two of the three genes encoding LHCSR shows that this protein, an ancient member of the light-harvesting complex superfamily that is not found in vascular plants, is required for survival in a fluctuating light environment. This means that plants and algae use different proteins to protect the photosynthetic apparatus from damage.

Suggested Citation

  • Graham Peers & Thuy B. Truong & Elisabeth Ostendorf & Andreas Busch & Dafna Elrad & Arthur R. Grossman & Michael Hippler & Krishna K. Niyogi, 2009. "An ancient light-harvesting protein is critical for the regulation of algal photosynthesis," Nature, Nature, vol. 462(7272), pages 518-521, November.
    • Handle: RePEc:nat:nature:v:462:y:2009:i:7272:d:10.1038_nature08587
    DOI: 10.1038/nature08587
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    Cited by:

    1. Huan Zhang & Xiaofeng Xiong & Kangning Guo & Mengyuan Zheng & Tianjun Cao & Yuqing Yang & Jiaojiao Song & Jie Cen & Jiahuan Zhang & Yanyou Jiang & Shan Feng & Lijin Tian & Xiaobo Li, 2024. "A rapid aureochrome opto-switch enables diatom acclimation to dynamic light," Nature Communications, Nature, vol. 15(1), pages 1-18, December.
    2. Marius Arend & Yizhong Yuan & M. Águila Ruiz-Sola & Nooshin Omranian & Zoran Nikoloski & Dimitris Petroutsos, 2023. "Widening the landscape of transcriptional regulation of green algal photoprotection," Nature Communications, Nature, vol. 14(1), pages 1-15, December.
    3. Dania Nanes Sarfati & Yuan Xue & Eun Sun Song & Ashley Byrne & Daniel Le & Spyros Darmanis & Stephen R. Quake & Adrien Burlacot & James Sikes & Bo Wang, 2024. "Coordinated wound responses in a regenerative animal-algal holobiont," Nature Communications, Nature, vol. 15(1), pages 1-16, December.
    4. Xiaojie Pang & Wojciech J. Nawrocki & Pierre Cardol & Mengyuan Zheng & Jingjing Jiang & Yuan Fang & Wenqiang Yang & Roberta Croce & Lijin Tian, 2023. "Weak acids produced during anaerobic respiration suppress both photosynthesis and aerobic respiration," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    5. Mengyuan Zheng & Xiaojie Pang & Ming Chen & Lijin Tian, 2024. "Ultrafast energy quenching mechanism of LHCSR3-dependent photoprotection in Chlamydomonas," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    6. M. Águila Ruiz-Sola & Serena Flori & Yizhong Yuan & Gaelle Villain & Emanuel Sanz-Luque & Petra Redekop & Ryutaro Tokutsu & Anika Küken & Angeliki Tsichla & Georgios Kepesidis & Guillaume Allorent & M, 2023. "Light-independent regulation of algal photoprotection by CO2 availability," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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