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Mechanistische Studien zum Verständnis der Funktion des Lichtsammlerproteins LHCSR3 zur Wärmedissipation von Lichtenergie in Chlamydomonas reinhardtii
Antragsteller
Professor Dr. Michael Hippler
Fachliche Zuordnung
Biochemie und Biophysik der Pflanzen
Förderung
Förderung von 2011 bis 2019
Projektkennung
Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 196619610
Erstellungsjahr
2020
Zusammenfassung der Projektergebnisse
In the framework of the granted work, we revealed mechanistic insights into the role of N-terminal phosphorylation of LHCSR3. We conclude, that there is a dynamic interplay between LHCSR3 and LHCB4 phosphorylation that is aimed at controlling stability of PSII- supercomplexes and PSII repair. Our work also indicated that a decline in LHCSR3 phosphorylation and turn-over of the PSBS protein coincide with changes the partitioning of LEF and CEF. Here more work is required to understand these interconnections. Moreover, our data revealed the composition of the PSI-LHCI complex. It further identified that LHCSR3 binds to LHCA5 in the PSI-LHCI supercomplex forming a complex for efficient energy quenching under light stress conditions.
Projektbezogene Publikationen (Auswahl)
- (2018) Configuration of Ten Light-Harvesting Chlorophyll a/b Complex I Subunits in Chlamydomonas reinhardtii Photosystem I. Plant Physiol 178: 583-595
Ozawa SI, Bald T, Onishi T, Xue H, Matsumura T, Kubo R, Takahashi H, Hippler M, Takahashi Y
(Siehe online unter https://doi.org/10.1104/pp.18.00749) - (2019) Light-dependent N-terminal phosphorylation of LHCSR3 and LHCB4 are interlinked in Chlamydomonas reinhardtii. Plant J 99: 877-894
Scholz M, Gabelein P, Xue H, Mosebach L, Bergner SV, Hippler M
(Siehe online unter https://doi.org/10.1111/tpj.14368) - (2020) PsbS contributes to photoprotection in Chlamydomonas reinhardtii independently of energy dissipation. Biochimica et biophysica acta Bioenergetics 1861: 148183
Redekop P, Rothhausen N, Rothhausen N, Melzer M, Mosebach L, Dulger E, Bovdilova A, Caffarri S, Hippler M, Jahns P
(Siehe online unter https://doi.org/10.1016/j.bbabio.2020.148183)