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A two-component nonphotochemical fluorescence quenching in eustigmatophyte algae

SYSNO ASEP	0479299
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	A two-component nonphotochemical fluorescence quenching in eustigmatophyte algae
Author(s)	Bína, David (BC-A)_{RID, ORCID} Bouda, Karel (BC-A) Litvín, Radek (BC-A)_{RID, ORCID}
Number of authors	3
Source Title	Photosynthesis Research. - : Springer - ISSN 0166-8595 Roč. 131, č. 1 (2017), s. 65-77
Number of pages	13 s.
Publication form	Print - P
Language	eng - English
Country	NL - Netherlands
Keywords	Nonphotochemical quenching ; Xanthophyll cycle ; Chl a fluorescence
Subject RIV	BO - Biophysics
OECD category	Biophysics
R&D Projects	GP14-01377P GA ČR - Czech Science Foundation (CSF)
Institutional support	BC-A - RVO:60077344
UT WOS	000391423700006
EID SCOPUS	84982863813
DOI	10.1007/s11120-016-0299-x
Annotation	Eustigmatophyte algae represent an interesting model system for the study of the regulation of the excitation energy flow due to their use of violaxanthin both as a major light-harvesting pigment and as the basis of xanthophyll cycle. Fluorescence induction kinetics was studied in an oleaginous marine alga Nannochloropsis oceanica. Nonphotochemical fluorescence quenching was analyzed in detail with respect to the state of the cellular xanthophyll pool. Two components of nonphotochemical fluorescence quenching (NPQ), both dependent on the presence of zeaxanthin, were clearly resolved, denoted as slow and fast NPQ based on kinetics of their formation. The slow component was shown to be in direct proportion to the amount of zeaxanthin, while the fast NPQ component was transiently induced in the presence of membrane potential on subsecond timescales. The applicability of these observations to other eustigmatophyte species is demonstrated by measurements of other representatives of this algal group, both marine and freshwater.
Workplace	Biology Centre (since 2006)
Contact	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Year of Publishing	2018

Number of the records: 1