Hole-burning study of energy transfer in antenna proteins of Dunaliella tertiolecta affected by iron-limitation

Tomáš Polívka, Jakub Pšenčik, Pavel Kroh, David Engst, Josef Komenda, Ondřej Prásil, Paul G. Falkowski, Jan Hála

Research output: Contribution to journalArticlepeer-review

Abstract

Results of persistent spectral hole burning (PSHB) experiments in fluorescence spectra of Fe-limited and Fe-replete cells of D. tertiolecta are reported. Low temperature fluorescence spectra exhibit an increase of PS II fluorescence of Fe-limited cells due to a decrease of an efficiency of excitation energy transfer (EET) in PS II. A 1.5 nm blue shift of PS II fluorescence maximum observed for Fe-limited cells is the result of excessive light harvesting complexes LHCII in thylakoid membrane. The PSHB experiments revealed an influence of Fe stress on EET from and between core antenna proteins CP43 and CP47. EET within core antenna proteins CP43 and CP47 is not affected by iron limitation.

Original languageEnglish (US)
Pages (from-to)111-117
Number of pages7
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume291
DOIs
StatePublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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