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Deficiency of the Stroma-Lamellar Protein LIL8/PSB33 Affects Energy Transfer Around PSI in Arabidopsis
| Title: | Deficiency of the Stroma-Lamellar Protein LIL8/PSB33 Affects Energy Transfer Around PSI in Arabidopsis |
| Authors: | Kato, Yukako Browse this author | | Yokono, Makio Browse this author | | Akimoto, Seiji Browse this author | | Takabayashi, Atsushi Browse this author →KAKEN DB | | Tanaka, Ayumi Browse this author →KAKEN DB | | Tanaka, Ryouichi Browse this author →KAKEN DB |
| Keywords: | Arabidopsis | | Light harvesting | | Thylakoids |
| Issue Date: | Nov-2017 |
| Publisher: | Oxford University Press |
| Journal Title: | Plant and Cell Physiology |
| Volume: | 58 |
| Issue: | 11 |
| Start Page: | 2026 |
| End Page: | 2039 |
| Publisher DOI: | 10.1093/pcp/pcx124 |
| PMID: | 29136458 |
| Abstract: | 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. |
| Rights: | 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 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/71795 |
| Appears in Collections: | 低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 田中 亮一
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