IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-12043-6.html
   My bibliography  Save this article

Lhcx proteins provide photoprotection via thermal dissipation of absorbed light in the diatom Phaeodactylum tricornutum

Author

Listed:
  • Jochen M. Buck

    (University of Konstanz)

  • Jonathan Sherman

    (The State University of New Jersey)

  • Carolina Río Bártulos

    (University of Konstanz)

  • Manuel Serif

    (University of Konstanz)

  • Marc Halder

    (University of Konstanz)

  • Jan Henkel

    (University of Konstanz
    University of Bern)

  • Angela Falciatore

    (Laboratory of Computational and Quantitative Biology)

  • Johann Lavaud

    (Université Laval)

  • Maxim Y. Gorbunov

    (The State University of New Jersey)

  • Peter G. Kroth

    (University of Konstanz)

  • Paul G. Falkowski

    (The State University of New Jersey)

  • Bernard Lepetit

    (University of Konstanz
    University of Konstanz)

Abstract

Diatoms possess an impressive capacity for rapidly inducible thermal dissipation of excess absorbed energy (qE), provided by the xanthophyll diatoxanthin and Lhcx proteins. By knocking out the Lhcx1 and Lhcx2 genes individually in Phaeodactylum tricornutum strain 4 and complementing the knockout lines with different Lhcx proteins, multiple mutants with varying qE capacities are obtained, ranging from zero to high values. We demonstrate that qE is entirely dependent on the concerted action of diatoxanthin and Lhcx proteins, with Lhcx1, Lhcx2 and Lhcx3 having similar functions. Moreover, we establish a clear link between Lhcx1/2/3 mediated inducible thermal energy dissipation and a reduction in the functional absorption cross-section of photosystem II. This regulation of the functional absorption cross-section can be tuned by altered Lhcx protein expression in response to environmental conditions. Our results provide a holistic understanding of the rapidly inducible thermal energy dissipation process and its mechanistic implications in diatoms.

Suggested Citation

  • Jochen M. Buck & Jonathan Sherman & Carolina Río Bártulos & Manuel Serif & Marc Halder & Jan Henkel & Angela Falciatore & Johann Lavaud & Maxim Y. Gorbunov & Peter G. Kroth & Paul G. Falkowski & Berna, 2019. "Lhcx proteins provide photoprotection via thermal dissipation of absorbed light in the diatom Phaeodactylum tricornutum," Nature Communications, Nature, vol. 10(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12043-6
    DOI: 10.1038/s41467-019-12043-6
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-12043-6
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-12043-6?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Wu, Wenbo & Tan, Ling & Chang, Haixing & Zhang, Chaofan & Tan, Xuefei & Liao, Qiang & Zhong, Nianbing & Zhang, Xianming & Zhang, Yuanbo & Ho, Shih-Hsin, 2023. "Advancements on process regulation for microalgae-based carbon neutrality and biodiesel production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 171(C).
    2. Audrey Short & Thomas P. Fay & Thien Crisanto & Ratul Mangal & Krishna K. Niyogi & David T. Limmer & Graham R. Fleming, 2023. "Kinetics of the xanthophyll cycle and its role in photoprotective memory and response," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Liqiang Yang & Xiaotong He & Shaoguo Ru & Yongyu Zhang, 2024. "Herbicide leakage into seawater impacts primary productivity and zooplankton globally," Nature Communications, Nature, vol. 15(1), pages 1-17, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12043-6. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.