Results 31 to 40 of about 17,918 (161)

The PhyR homolog RSP_1274 of Rhodobacter sphaeroides is involved in defense of membrane stress and has a moderate effect on RpoE (RSP_1092) activity

BMC Microbiology, 2018
Background A major role of the PhyR-NepR-σ(EcfG) cascade in the general stress response was demonstrated for some bacterial species and considered as conserved in Alphaproteobacteria.
Qingfeng Li, Tao Peng, Gabriele Klug
doaj   +1 more source

DegS and RseP homologous proteases are involved in singlet oxygen dependent activation of RpoE in Rhodobacter sphaeroides. [PDF]

PLoS ONE, 2013
Singlet oxygen ((1)O2) is the main agent of photooxidative stress and is generated by photosensitizers as (bacterio)chlorophylls. It leads to the damage of cellular macromolecules and therefore photosynthetic organisms have to mount an adaptive response ...
Aaron M Nuss, Fazal Adnan, Lennart Weber, Bork A Berghoff, Jens Glaeser, Gabriele Klug   +5 more
doaj   +1 more source

Potential of Phosphorus Solubilizing Purple Nonsulfur Bacteria Isolated from Acid Sulfate Soil in Improving Soil Property, Nutrient Uptake, and Yield of Pineapple (Ananas comosus L. Merrill) under Acidic Stress

Applied and Environmental Soil Science, 2022
This study aimed to (i) evaluate purple nonsulfur bacteria (PNSB) strains possessing the highest phosphorus (P) solubilizing capacity in field and (ii) determine the efficacy of PNSB biofertilizers in improving soil quality, P uptake, growth, and yield ...
Tran Ngoc Huu, Tran Thi Ngoc Giau, Phan Ngoc Ngan, Tran Thi Bich Van, Nguyen Quoc Khuong   +4 more
doaj   +1 more source

Efficient Cas9-based genome editing of Rhodobacter sphaeroides for metabolic engineering

Microbial Cell Factories, 2019
Background Rhodobacter sphaeroides is a metabolically versatile bacterium that serves as a model for analysis of photosynthesis, hydrogen production and terpene biosynthesis. The elimination of by-products formation, such as poly-β-hydroxybutyrate (PHB),
Ioannis Mougiakos, Enrico Orsi, Mohammad Rifqi Ghiffary, Wilbert Post, Alberto de Maria, Belén Adiego-Perez, Servé W. M. Kengen, Ruud A. Weusthuis, John van der Oost   +8 more
doaj   +1 more source

Surface Modification of a Graphite Felt Cathode with Amide-Coupling Enhances the Electron Uptake of Rhodobacter sphaeroides

Applied Sciences, 2021
Microbial electrosynthesis (MES) is a promising technology platform for the production of chemicals and fuels from CO2 and external conducting materials (i.e., electrodes).
Hana Nur Fitriana, Jiye Lee, Sangmin Lee, Myounghoon Moon, Yu Rim Lee, You-Kwan Oh, Myeonghwa Park, Jin-Suk Lee, Jinju Song, Soo Youn Lee   +9 more
doaj   +1 more source

The native architecture of a photosynthetic membrane [PDF]

, 2004
In photosynthesis, the harvesting of solar energy and its subsequent conversion into a stable charge separation are dependent upon an interconnected macromolecular network of membrane-associated chlorophyll–protein complexes.
AW Roszak, BA Feniouk, C. Alistair Siebert, C. Neil Hunter, CA Siebert, Cees Otto, CN Hunter, D Fotiadis, DJ Müller, EJ Boekema, G Katona, G McDermott, J Aagaard, J Deisenhofer, JN Sturgis, John D. Olsen, JP Allen, Kees O. van der Werf, KJ Visscher, KO Van der Werf, LM Beekman, MH Vos, Per A. Bullough, RA Niederman, Raoul N. Frese, Rienk van Grondelle, RN Frese, Robert A. Niederman, S Bahatyrova, S Hess, S Scheuring, S Scheuring, S Scheuring, SJ Jamieson, Svetlana Bahatyrova, T Monger, T Walz   +36 more
core   +4 more sources

Spectroscopic characterization of reaction centers of the (M)Y210W mutant of the photosynthetic bacterium Rhodobacter sphaeroides [PDF]

, 1994
The tyrosine-(M)210 of the reaction center of Rhodobacter sphaeroides 2.4.1 has been changed to a tryptophan using site-directed mutagenesis. The reaction center of this mutant has been characterized by low-temperature absorption and fluorescence ...
Arlt, Thomas, Francke, Christof, Gast, Peter, Hoff, Arnold J., Noort, Paula I. van, Otte, Stephan C. M., Schelvis, Hans P. M., Schmidt, Stefan, Shochat, Susana, Vijgenboom, Erik, Zinth, Wolfgang   +10 more
core   +1 more source

Investigation of a Bacterial and Arbuscular Mycoorhizal Fungus Spore Inoculation in Cultivation of Saffron

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Saffron (Crocus sativus L.) is prized for its stigma, a valuable spice rich in bioactive compounds crucial for various industries and traditional medicine.
Sevinç Yeşilyurt, Seda Pamay, Muazzez Gürgan Eser   +2 more
doaj   +1 more source

Photosynthetic reaction center/graphene bio-hybrid for low-power optoelectronics

Photosynthetica, 2023
Photosynthetic reaction center (pRC) purified from Rhodobacter sphaeroides 2.4.1 purple bacteria was deposited on a graphene carrier exfoliated from the liquid phase and layered on the surface of SiO2/Si substrate for optoelectronic application.
J. VUJIN, T. SZABÓ, R. PANAJOTOVIC, A.G. VÉGH, L. RINYU, L. NAGY   +5 more
doaj   +1 more source

Observation of a bacteriochlorophyll anion radical during the primary charge separation in a reaction center [PDF]

, 1989
The primary light-induced charge separation in reaction centers of Rhodobacter sphaeroides was investigated with femtosecond time resolution. The absorption changes in the time range 100 fs to 1 ns observed after direct excitation of the primary donor P ...
Finkele, Ulrich, Holzapfel, Wolfgang, Kaiser, Wolfgang, Oesterhelt, Dieter, Scheer, Hugo, Stilz, Hans Ulrich, Zinth, Wolfgang   +6 more
core   +2 more sources