Changes in the LHCI aggregation state during iron repletion in the unicellular red alga Rhodella violacea
- 4 December 2002
- journal article
- Published by Wiley in FEBS Letters
- Vol. 533 (1) , 59-62
- https://doi.org/10.1016/s0014-5793(02)03748-1
Abstract
Red algae are well suited to study the effects of iron deficiency on light-harvesting complex for photosystem I (LHCI), since they are totally devoid of light-harvesting complex for photosystem II (LHCII). Iron starvation results in a reduction of the pigment content, an increase of the fluorescence yield and a new emission band at 705 nm in the 77 K fluorescence emission spectra. These changes reflect the accumulation of uncoupled, aggregated LHCI in iron-depleted cells. Reconnection of LHCI to de novo synthesized reaction center I (RCI) is the first event, which takes place after iron addition. The changes in the aggregation state of LHCI are likely to occur also in brown and green algaeKeywords
This publication has 30 references indexed in Scilit:
- Ultrastructure and photosynthetic apparatus of Rhodella violacea (Porphyridiales, Rhodophyta) grown under iron-deficient conditionsPhycologia, 1999
- SYNTHESIS AND BINDING OF PHYCOERYTHRIN AND ITS ASSOCIATED LINKERS TO THE PHYCOBILISOME IN RHODELLA VIOLACEA (RHODOPHYTA): COMPARED EFFECTS OF HIGH LIGHT AND TRANSLATION INHIBITORS1Journal of Phycology, 1996
- Porphyridium purpureum (Rhodophyta) from red and green light: characterization of photosystem I and determination of in situ fluorescence spectra of the photosystemsJournal of Photochemistry and Photobiology B: Biology, 1995
- Iron-Induced Changes in Light Harvesting and Photochemical Energy Conversion Processes in Eukaryotic Marine AlgaePlant Physiology, 1992
- Iron regulation of chloroplast photosynthetic function: Mediation of PS I developmentJournal of Plant Nutrition, 1989
- Purification and characterization of an iron stress-induced chlorophyll-protein from the cyanobacterium Anacystis nidulans R2Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1988
- Organization and Function of Chlorophyll in Membranes of Cyanobacteria during Iron StarvationPlant Physiology, 1983
- Photosynthetic Unit Organization in a Red AlgaPlant Physiology, 1983
- A new chlorophyll-protein complex related to Photosystem I in Chlamydomonas reinhardiiBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1982
- Isolation and characterization of Photosystem I and II membrane particles from the blue-green alga, Synechococcus cedrorumBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1978