Results 81 to 90 of about 1,127 (123)

Cooperation and Competition Were Primary Driving Forces for Biological Evolution. [PDF]

Microb Physiol
Saier MH.
europepmc   +1 more source

Do carotenoids protect phytodetritus-associated bacteria from oxidative stress? [PDF]

Environ Sci Pollut Res Int
Simon G, Casalot L, Valette C, Burot C, Rontani JF, Bonin P.   +5 more
europepmc   +1 more source

Taxonomy of the genus Poterioochromonas (Chrysophyceae) based on morphological and molecular evidence. [PDF]

J Phycol
Jeong M, Kim JI, Shin W.
europepmc   +1 more source

A reassessment of the "hard-steps" model for the evolution of intelligent life. [PDF]

Sci Adv
Mills DB, Macalady JL, Frank A, Wright JT.   +3 more
europepmc   +1 more source

Plant plastids: from evolutionary origins to functional specialization and organelle interactions. [PDF]

J Exp Bot
Renna L, Papini A, Mancuso S, Brandizzi F, Stefano G.   +4 more
europepmc   +1 more source

Origin and evolution of mitochondrial inner membrane composition.

J Cell Sci
Venkatraman K, Lipp NF, Budin I.
europepmc   +1 more source

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Dielectric properties of bacterial chromatophores

Bioelectrochemistry, 1983
Summary o (1) The dielectric properties of suspensions of chromatophores from Rhodopseudomonas capsulata have been measured in the range 1 kHz to 13 MHz. Neither of the two dielectric dispersions observed is greatly affected by changes in the number or valency of added ions.
Douglas Kell
exaly   +2 more sources

Uncoupling and charge transfer in bacterial chromatophores

Biochimica Et Biophysica Acta - Bioenergetics, 1970
Abstract Uncoupling of photophosphorylation in bacterial chromatophores is obtained with NH 4 Cl or K + (Na + ) plus nigericin in the presence of either valinomycin or suitable permeant anions. The experiments suggest that uncoupling is obtained by the simultaneous abolishment of both pH gradient and membrane potential components of the light ...
M Montal
exaly   +3 more sources

Photosynthetic regeneration of ATP using bacterial chromatophores

Biotechnology and Bioengineering, 1976
AbstractWe have demonstrated the use of bacterial chromatophores for the continuous photosynthetic regeneration of ATP from ADP in an ultrafiltration reactor. Biphasic kinetics of the degradation of chromatophore activity are described. Using chromatophores in combination with the enzyme adenylate kinase, we have also demonstrated continuous ...
M C Archer
exaly   +3 more sources

Preparation and properties of bacterial chromatophores entrapped in polyacrylamide

Biotechnology and Bioengineering, 1976
AbstractThe immobilization of Rhodospirillum rubrum chromatophores was successfully performed by entrapping them in polyacrylamide. Their photophosphorylating activity was about 40% of native chromatophores. The temperature and pH optima for immobilized chromatophores were similar to the native photosynthetic apparatus and kinetic parameters showed ...
M C Archer
exaly   +3 more sources