Results 21 to 30 of about 4,039 (174)

THE PHOTOSYNTHETIC APPARATUS OF RHODOSPIRILLUM MOLISCHIANUM [PDF]

The Journal of Cell Biology, 1965
By varying the light intensity and temperature during growth it is possible to obtain cultures of Rhodospirillum molischianum in which the specific bacteriochlorophyll contents differ by as much as fivefold. We used such cultures to compare the changes in the electron microscopic appearance of the cells with the changes in the amount and ...
S P, Gibbs, W R, Sistrom, P B, Worden
openaire   +2 more sources

Inhibition of bacteriochlorophyll biosynthesis in the purple phototrophic bacteria Rhodospirillumrubrum and Rhodobacter capsulatus grown in the presence of a toxic concentration of selenite

BMC Microbiology, 2018
Background In many works, the chemical composition of bacterially-produced elemental selenium nanoparticles (Se0-nanoparticles) was investigated using electron dispersive X-ray analysis.
Janine Kessi, Stefan Hörtensteiner
doaj   +1 more source

Computational prediction of extracellular loops of the Por39 outer membrane porin of Rhodospirillum rubrum suitable for epitope surface display

Computational and Structural Biotechnology Journal, 2023
Outer membrane porins from Gram-negative bacteria are established vehicles for the production of vaccines. Typically, one or more of the extracellular loops of a porin are replaced by a peptide encoding a foreign epitope, and recombinant porin is then ...
Daniel Markthaler, Robin Ghosh
doaj   +1 more source

Lipophilic O-antigens in Rhodospirillum tenue [PDF]

Journal of Bacteriology, 1977
Lipopolysaccharides of eight wild-type strains of the phototrophic bacterium Rhodospirillum tenue have been analyzed. All of the lipopolysaccharides are highly lipophilic. The compositions of preparations obtained by the phenol-water or by the phenol-chloroform-petroleum ether procedure are very similar. The polysaccharide moiety, obtained by mild acid
J, Weckesser, G, Drews, R, Indira, H, Mayer   +3 more
openaire   +2 more sources

Penetration into Cancer Cells via Clathrin-Dependent Mechanism Allows L-Asparaginase from Rhodospirillum rubrum to Inhibit Telomerase

Pharmaceuticals, 2020
The anticancer effect of L-asparaginases (L-ASNases) is attributable to their ability to hydrolyze L-asparagine in the bloodstream and cancer cell microenvironment.
Anna A. Plyasova, Marina V. Pokrovskaya, Olga M. Lisitsyna, Vadim S. Pokrovsky, Svetlana S. Alexandrova, Abdullah Hilal, Nikolay N. Sokolov, Dmitry D. Zhdanov   +7 more
doaj   +1 more source

Analysis of the Involvement of the Isoleucine Biosynthesis Pathway in Photoheterotrophic Metabolism of Rhodospirillum rubrum

Frontiers in Microbiology, 2021
Purple non-sulfur bacteria (PNSB) are recognized as a highly versatile group of bacteria that assimilate a broad range of carbon sources. Growing heterotrophically, PNSB such as Rhodospirillum rubrum (Rs.
Guillaume Bayon-Vicente, Elie Marchand, Jeson Ducrotois, François E. Dufrasne, Regis Hallez, Regis Hallez, Regis Hallez, Ruddy Wattiez, Baptiste Leroy   +8 more
doaj   +1 more source

The ECF sigma factor, PSPTO_1043, in Pseudomonas syringae pv. tomato DC3000 is induced by oxidative stress and regulates genes involved in oxidative stress response. [PDF]

PLoS ONE, 2017
The bacterial plant pathogen Pseudomonas syringae adapts to changes in the environment by modifying its gene expression profile. In many cases, the response is mediated by the activation of extracytoplasmic function (ECF) sigma factors that direct RNA ...
Bronwyn G Butcher, Zhongmeng Bao, Janet Wilson, Paul Stodghill, Bryan Swingle, Melanie Filiatrault, David Schneider, Samuel Cartinhour   +7 more
doaj   +1 more source

Rhodospirillum rubrum L-Asparaginase Conjugates with Polyamines of Improved Biocatalytic Properties as a New Promising Drug for the Treatment of Leukemia

Applied Sciences, 2023
L-asparaginase Rhodospirillum rubrum (RrA) is an enzyme (amidohydrolases; EC 3.5.1.1) that catalyzes the L-asparagine hydrolysis reaction to form L-aspartic acid.
Natalia V. Dobryakova, Dmitry D. Zhdanov, Nikolay N. Sokolov, Svetlana S. Aleksandrova, Marina V. Pokrovskaya, Elena V. Kudryashova   +5 more
doaj   +1 more source

Aerobic-anaerobic transition boosts poly(3-hydroxybutyrate-co-3-hydroxyvalerate) synthesis in Rhodospirillum rubrum: the key role of carbon dioxide

Microbial Cell Factories, 2023
Background Microbially produced bioplastics are specially promising materials since they can be naturally synthesized and degraded, making its end-of-life management more amenable to the environment.
Manuel S. Godoy, Santiago R. de Miguel, M. Auxiliadora Prieto   +2 more
doaj   +1 more source

A Comprehensive Study of Biohopanoid Production in Alphaproteobacteria: Biosynthetic, Chemotaxonomical, and Geobiological Implications. [PDF]

Geobiology
ABSTRACT Bacteriohopanepolyol derivatives (BHPDs) and dia‐ and catagenetic products formed from these bacterial membrane modifiers are extensively used as biomarkers in molecular ecological and geoscience studies. Some BHPDs can be assigned to specific phylogenetic bacterial groups. With the vastly increasing availability of complete bacterial genomes,
Sinninghe Damsté JS, Koenen M, Thiel V, Richter N, Hopmans EC, Bale NJ.   +5 more
europepmc   +2 more sources