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- Md. Wahadoszamen; Sandrine D'Haene; Anjue Mane Ara; Elisabet Romero; Jan P. Dekker; Rienk van Grondelle; Rudi Berera
- Biochimica et biophysica acta 2015 v.1847 no.4-5 pp. 486-492
- Bacillariophyceae; Cyanobacteria; autotrophs; chlorophyll; energy; fluorescence; oxidative stress; photosynthesis; spectroscopy
- ... When cyanobacteria are grown under iron-limited or other oxidative stress conditions the iron stress inducible pigment–protein IsiA is synthesized in variable amounts. IsiA accumulates in aggregates inside the photosynthetic membrane that strongly dissipate chlorophyll excited state energy. In this paper we applied Stark fluorescence (SF) spectroscopy at 77K to IsiA aggregates to gain insight into ...
- Kostas Stamatakis; Panayiotis-Ilias Broussos; Angeliki Panagiotopoulou; Rebecca J. Gast; Maria Pelecanou; George C. Papageorgiou
- Biochimica et biophysica acta 2019 v.1860 no.1 pp. 102-110
- Bacillariophyceae; Chlorophyta; Cyanobacteria; Miozoa; Phaeocystis; Rhodophyta; absorption; algae; amino acids; autotrophs; chlorophyll; circular dichroism spectroscopy; fluorescence; kleptoplasts; photosynthesis; ultraviolet radiation; Antarctica
- ... Light state transitions (STs) is a reversible physiological process that oxygenic photosynthetic organisms use in order to minimize imbalances in the electronic excitation delivery to the reaction centers of Photosystems I and II, and thus to optimize photosynthesis. STs have been studied extensively in plants, green algae, red algae and cyanobacteria, but sparsely in algae with secondary red alga ...