Results 21 to 30 of about 11,667,870 (228)

Anoxygenic phototrophic purple non-sulfur bacteria: tool for bioremediation of hazardous environmental pollutants. [PDF]

World J Microbiol Biotechnol, 2023
Abstract The extraordinary metabolic flexibility of anoxygenic phototrophic purple non-sulfur bacteria (PNSB) has been exploited in the development of various biotechnological applications, such as wastewater treatment, biohydrogen production, improvement of soil fertility and plant growth, and recovery of high ...
Dhar K, Venkateswarlu K, Megharaj M.
europepmc   +3 more sources

Acetate metabolism in purple non-sulfur bacteria [PDF]

FEMS Microbiology Letters, 1989
The photosynthetic non-sulfur purple bacterium Rhodobacter capsulatus E1F1 can grow on acetate or dl-malate photoheterotrophically under anerobic conditions or chemoheterotrophically in the dark in the presence of dioxygen. Bacterial cells grown under both anaerobic and aerobic conditions exhibited high amounts of the tricarboxylic acid cycle enzymes ...
Rafael Blasco, Jacobo Cardenas, Francisco Castillo   +2 more
openaire   +2 more sources

Evaluation of the relationship between color-tuning of photosynthetic excitons and thermodynamic stability of light-harvesting chromoproteins

Photosynthetica, 2023
Color-tuning is a critical survival mechanism for photosynthetic organisms. Calcium ions are believed to enhance both spectral tuning and thermostability in obligatory calcium-containing sulfur purple bacteria.
M. RÄTSEP, A. LEHTMETS, L. KANGUR, K. TIMPMANN, K. LEIGER, Z.-Y. WANG-OTOMO, A. FREIBERG   +6 more
doaj   +1 more source

Molecular Physiology of Anaerobic Phototrophic Purple and Green Sulfur Bacteria [PDF]

, 2021
There are two main types of bacterial photosynthesis: oxygenic (cyanobacteria) and anoxygenic (sulfur and non-sulfur phototrophs). Molecular mechanisms of photosynthesis in the phototrophic microorganisms can differ and depend on their location and ...
Márió Gajdács, Procházka Jiří, Jiří Procházka, Kushkevych Ivan, Gajdács Márió, Kushkevych, Ivan, Ivan Kushkevych, Rittmann, Simon, K-M R, Simon K.-M. R. Rittmann, Procházka, Jiří, Vítězová Monika, Gajdács, Márió, Vítězová, Monika, Rittmann Simon K.-M. R., Rittmann, Simon K.-M. R., Monika Vítězová   +15 more
core   +1 more source

Photobioreactor Design for Polyhydroxyalkanoate Production Using Anoxygenic Photoheterotrophs: A Review

Fermentation, 2023
This review paper provides an overview of various types of photobioreactors (PBRs) that could be used for the production of polyhydroxyalkanoates (PHAs) using anoxygenic photoheterotrophs, with a focus on the design and operation of these systems.
Sultan Shaikh, Naim Rashid, Gordon McKay, Hamish Robert Mackey   +3 more
doaj   +1 more source

Purple non-sulfur photosynthetic bacteria monitor environmental stresses [PDF]

Journal of Photochemistry and Photobiology B: Biology, 2015
Heavy metal ion pollution and oxygen deficiency are major environmental risks for microorganisms in aqueous habitat. The potential of purple non-sulfur photosynthetic bacteria for biomonitoring and bioremediation was assessed by investigating the photosynthetic capacity in heavy metal contaminated environments. Cultures of bacterial strains Rhodobacter
Kis Mariann, Sipka Gábor, Asztalos Emese, Rázga Zsolt, Maróti Péter   +4 more
openaire   +3 more sources

Physiological and Mechanistic Studies of Phototrophic Fe(II) Oxidation in Purple Non-sulfur Bacteria [PDF]

, 2007
Phototrophic Fe(II)-oxidizing bacteria use electrons from ferrous iron [Fe(II)] and energy from light to drive reductive CO₂ fixation. This metabolism is thought to be ancient in origin, and plays an important role in environmental iron cycling. It has
Jiao, Yongqin
core   +1 more source

Physiology of purple sulfur bacteria forming macroscopic aggregates in Great Sippewissett Salt Marsh, Massachusetts [PDF]

, 1993
Purple bacterial aggregates found in tidal pools of Great Sippewissett Salt Marsh (Falmouth, Cape Cod, MA) were investigated in order to elucidate the ecological significance of cell aggregation. Purple sulfur bacteria were the dominant microorganisms in
Seitz, A. P., Nielsen, T. H., Overmann, Jörg, A Seitz   +3 more
core   +1 more source

Fossil carotenoids and paleolimnology of meromictic Mahoney Lake, British Columbia, Canada [PDF]

, 1993
Vertical distribution of fossil carotenoids in a sediment core from meromictic Mahoney Lake was studied. Besides okenone and demethylated okenone, lutein and zeaxanthin and-carotene isomers were identified.
Sandmann, Gerhard, Tom G. Northcote, Ken J. Hall, Haller, Ken J., Gerhard Sandmann, J�rg Overmann, Overmann, Jörg, Northcote, Tom G.   +7 more
core   +1 more source

Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality [PDF]

, 2013
Funding provided by French National Centre for Scientific Research/INSU program EC2CO-MicroBien (Microbiologie Environnementale -BIOPOURPRE Project), European Community (ASSEMBLE grant agreement n° 227799), Region Pays de la Loire (France), Marine ...
Paterson, David M, Thiney Najet, Jeanthon Christian, Mickael Ruivo, Jeanthon, Christian, Spilmont, Nicolas, Ruivo Mickael, M. Paterson, David, Meziane Tarik, Davoult Dominique, Hubas, Cedric, Spilmont Nicolas, Paterson David M., Davoult, Dominique, Tarik Meziane, Bruno Jesus, Jesus Bruno, Najet Thiney, Nicolas Spilmont, Meziane, Tarik, Hubas Cédric, David M Paterson, Cédric Hubas, Paterson, David M., Dominique Davoult, Ruivo, Mickael, Jesus, Bruno, Thiney, Najet, Christian Jeanthon, Paterson, David M.; id_orcid   +29 more
core   +1 more source