Phycobilisome Mobility and Its Role in the Regulation of Light Harvesting in Red Algae1[W]
نویسندگان
چکیده
Institute of Microbiology, Centre Algatech, Academy of Sciences of the Czech Republic, 379 81 Trebon, Czech Republic (R.K., E.K., M.L., O.P.); Faculty of Science, Institute of Chemistry and Biochemistry, University of South Bohemia, Branišovská 31, 370 05 Ceske Budejovice, Czech Republic (R.K., E.K., O.P.); Faculty of Fisheries and Protection of Waters, Center of Aquaculture and Biodiversity of Hydrocenoses, Institute of Complex Systems, University of South Bohemia in Ceske Budejovice, Zámek 136, 373 33 Nove Hrady, Czech Republic (Š.P.); Institute of Computer Science, Academy of Sciences of the Czech Republic, 18207 Praha 8, Czech Republic (C.M.); and School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, United Kingdom (L.-N.L., C.W.M.)
منابع مشابه
Phycobilisome Mobility and Its Role in the Regulation of Light Harvesting in Red Algae.
Red algae represent an evolutionarily important group that gave rise to the whole red clade of photosynthetic organisms. They contain a unique combination of light-harvesting systems represented by a membrane-bound antenna and by phycobilisomes situated on thylakoid membrane surfaces. So far, very little has been revealed about the mobility of their phycobilisomes and the regulation of their li...
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Phycobilisomes are the major accessory light-harvesting complexes of cyanobacteria and red algae. Studies using fluorescence recovery after photobleaching on cyanobacteria in vivo have shown that the phycobilisomes are mobile complexes that rapidly diffuse on the thylakoid membrane surface. By contrast, the PSII core complexes are completely immobile. This indicates that the association of phyc...
متن کاملCyanobacterial photosynthesis in the oceans: the origins and significance of divergent light-harvesting strategies.
Prochlorococcus and Synechococcus are abundant unicellular cyanobacteria and major participants in global carbon cycles. Although they are closely related and often coexist in the same ocean habitat, they possess very different photosynthetic light-harvesting antennas. Whereas Synechococcus and the majority of cyanobacteria use phycobilisomes, Prochlorococcus has evolved to use a chlorophyll a(...
متن کاملA response regulator of cyanobacteria integrates diverse environmental signals and is critical for survival under extreme conditions.
Microorganisms must sense their environment and rapidly tune their metabolism to ambient conditions to efficiently use available resources. We have identified a gene encoding a response regulator, NblR, that complements a cyanobacterial mutant unable to degrade its light-harvesting complex (phycobilisome), in response to nutrient deprivation. Cells of the nblR mutant (i) have more phycobilisome...
متن کاملLight-Harvesting System of the Red Alga Gracilaria tikvahiae: II. Phycobilisome Characteristics of Pigment Mutants.
Phycobilisomes were isolated from wild type Gracilaria tikvahiae and a number of its genetically characterized Mendelian and non-Mendelian pigment mutants in which the principal lesions result in an increase or decrease in the accumulation of phycoerythrin. Both the size and phycoerythrin content of the phycobilisomes are proportional to the phycoerythrin content of the crude algal extracts. In...
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تاریخ انتشار 2014