Number of the records: 1
High photochemical trapping efficiency in Photosystem I from the red Glade algae Chromera velia and Phaeodactylum tricornuturn
- 1.
SYSNO ASEP 0473582 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High photochemical trapping efficiency in Photosystem I from the red Glade algae Chromera velia and Phaeodactylum tricornuturn Author(s) Belgio, Erica (MBU-M)
Santabarbara, S. (IT)
Bína, David (BC-A) RID, ORCID
Trsková, Eliška (MBU-M)
Herbstová, Miroslava (BC-A) RID
Kaňa, Radek (MBU-M) RID, ORCID
Zucchelli, G. (IT)
Prášil, Ondřej (MBU-M) RID, ORCIDSource Title Biochimica Et Biophysica Acta-Bioenergetics. - : Elsevier - ISSN 0005-2728
Roč. 1858, č. 1 (2017), s. 56-63Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords Chromera velia ; Phaeodactylum tricornutum ; Red Glade algae Subject RIV EE - Microbiology, Virology OECD category Microbiology Subject RIV - cooperation Biology Centre (since 2006) - Biophysics R&D Projects GA14-15728S GA ČR - Czech Science Foundation (CSF) LO1416 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED2.1.00/19.0392 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GBP501/12/G055 GA ČR - Czech Science Foundation (CSF) GA16-10088S GA ČR - Czech Science Foundation (CSF) Institutional support MBU-M - RVO:61388971 ; BC-A - RVO:60077344 UT WOS 000390626500007 EID SCOPUS 84995680596 DOI 10.1016/j.bbabio.2016.10.002 Annotation In the present work, we report the first comparative spectroscopic investigation between Photosystem I (PSI) complexes isolated from two red Glade algae. Excitation energy transfer was measured in PSI from Chromera velia, an alga possessing a split PsaA protein, and from the model diatom Phaeodactylum tricornutum. In both cases, the estimated effective photochemical trapping time was in the 15-25 ps range, i.e. twice as fast as higher plants. In contrast to green phototrophs, the trapping time was rather constant across the whole emission spectrum. The weak wavelength dependence was attributed to the limited presence of long-wavelength emitting chlorophylls, as verified by low temperature spectroscopy. As the trapping kinetics of C. velia PSI were barely distinguishable from those of P. tricornutum PSI, it was concluded that the scission of PsaA protein had no significant impact on the overall PSI functionality. In conclusion, the two red Glade algae analysed here, carried amongst the most efficient charge separation so far reported for isolated Photosystems. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2018
Number of the records: 1