High photochemical trapping efficiency in Photosystem I from the red Glade algae Chromera velia and Phaeodactylum tricornuturn

Belgio, Erica; Santabarbara, S.; Bína, David; Trsková, Eliška; Herbstová, Miroslava; Kaňa, Radek; Zucchelli, G.; Prášil, Ondřej

doi:https://dx.doi.org/10.1016/j.bbabio.2016.10.002

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, ORCID}
Source Title	Biochimica Et Biophysica Acta-Bioenergetics. - : Elsevier - ISSN 0005-2728 Roč. 1858, č. 1 (2017), s. 56-63
Number 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