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Title
  • en Deficiency of the Stroma-Lamellar Protein LIL8/PSB33 Affects Energy Transfer Around PSI in Arabidopsis
Creator
Accessrights open access
Rights
  • en This is a pre-copyedited, author-produced version of an article accepted for publication in Plant and Cell Physiology following peer review. The version of record is available online at: https://doi.org/10.1093/pcp/pcx124
Subject
  • Other en Arabidopsis
  • Other en Light harvesting
  • Other en Thylakoids
  • NDC 470
Description
  • Abstract en Light-harvesting-like (LIL) proteins are a group of proteins that share a consensus amino acid sequence with light-harvesting Chl-binding (LHC) proteins. We hypothesized that they might be involved in photosynthesis-related processes. In order to gain a better understanding of a potential role in photosynthesis-related processes, we examined the most recently identified LIL protein, LIL8/PSB33. Recently, it was suggested that this protein is an auxiliary PSII core protein which is involved in organization of the PSII supercomplex. However, we found that the majority of LIL8/PSB33 was localized in stroma lamellae, where PSI is predominant. Moreover, the PSI antenna sizes measured under visible light were slightly increased in the lil8 mutants which lack LIL8/PSB33 protein. Analysis of fluorescence decay kinetics and fluorescence decay-associated spectra indicated that energy transfer to quenching sites within PSI was partially hampered in these mutants. On the other hand, analysis of the steady-state fluorescence spectra in these mutants indicates that a population of LHCII is energetically disconnected from PSII. Taken together, we suggest that LIL8/PSB33 is involved in the fine-tuning of light harvesting and/or energy transfer around both photosystems.
Publisher en Oxford University Press
Date
    Issued2017-11
Language
  • eng
Resource Type journal article
Version Type AM
Identifier HDL http://hdl.handle.net/2115/71795
Relation
  • isVersionOf DOI https://doi.org/10.1093/pcp/pcx124
  • PMID 29136458
Journal
    • PISSN 0032-0781
      • en Plant and Cell Physiology
      • Volume Number58 Issue Number11 Page Start2026 Page End2039
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Oaidate 2023-07-26