Results 271 to 280 of about 85,330 (309)

Biosorption of heavy metals by a marine bacterium

Marine Pollution Bulletin, 2005
Heavy metal chelation property of exopolysaccharide produced by Enterobacter cloaceae, a marine bacterium, isolated from the West Coast of India, is reported in this paper. The exopolysaccharide demonstrated excellent chelating properties with respect to cadmium (65%) followed by copper (20%) and cobalt (8%) at 100 mg/l heavy metal concentration ...
Anita, Iyer, Kalpana, Mody, Bhavanath, Jha   +2 more
openaire   +2 more sources

Proteorhodopsin in the ubiquitous marine bacterium SAR11

Nature, 2005
Proteorhodopsins are light-dependent proton pumps that are predicted to have an important role in the ecology of the oceans by supplying energy for microbial metabolism. Proteorhodopsin genes were first discovered through the cloning and sequencing of large genomic DNA fragments from seawater.
Stephen J, Giovannoni, Lisa, Bibbs, Jang-Cheon, Cho, Martha D, Stapels, Russell, Desiderio, Kevin L, Vergin, Michael S, Rappé, Samuel, Laney, Lawrence J, Wilhelm, H James, Tripp, Eric J, Mathur, Douglas F, Barofsky   +11 more
openaire   +2 more sources

Extraction and characterization of an exopolysaccharide from a marine bacterium

International Microbiology, 2021
The marine bacterial exopolysaccharides (EPS) have transfigured the biotech sector with their myriad applications and prospects. This work was carried out to characterize and analyze the functional and biochemical properties of an EPS (EPS-DR3A) produced by a marine bacterium, Pseudoalteromonas sp. YU16-DR3A. The bacterium was cultured in Zobell marine
Bythadka Erappa, Dhanya, Ashwini, Prabhu, Punchappady Devasya, Rekha   +2 more
openaire   +2 more sources

Alginase from a Marine Bacterium

Botanica Marina, 1993
An intracellular, inducible alginase from a marine bacterium Bacillus was enriched 42 fold by ammonium sulfate precipitation and column chromatography on DEAE cellulose. Thermal stability, pH optima and requirement for monovalent cations for the enzyme were studied.
K. Mody, V. D. Chauhan
openaire   +1 more source

Transhydrogenase activity in the marine bacterium Beneckea natriegens

Biochimica et Biophysica Acta (BBA) - Enzymology, 1977
The marine bacterium, Beneckea natriegens, which has previously been reported not to form transhydrogenase, has been shown to synthesize a soluble energy-independent transhydrogenase (NADPH:NADP+ oxidoreductase, EC 1.6.1.1), though no energy-linked activity could be detected.
P A, Collins, C J, Knowles
openaire   +2 more sources

Evaluation of Biosurfactant/Bioemulsifier Production by a Marine Bacterium

Bulletin of Environmental Contamination and Toxicology, 2007
Planococcus maitriensis Anita I (NCBI GenBank Accession number EF467308) was tested for its biosurfactant/bioemulsifying efficacy. The crude extracellular polymeric substance (EPS) produced by this bacterium contained carbohydrate (12.06%), protein (24.44%), uronic acid (11%) and sulfate (3.03%).
Anita, Suresh Kumar, Kalpana, Mody, Bhavanath, Jha   +2 more
openaire   +2 more sources

Isolation and Characterization of a Fucoidan-Degrading Marine Bacterium

Marine Biotechnology, 2003
Fucoidan, a mixture of sulfated fucose-containing polysaccharides, was prepared from the algal bodies of Cladosiphon okamuranus (class Phaeophyceae, order Chordariales, family Chordariaceae) with a yield of 2.0% of the wet weight of the alga. To obtain enzymes that digest the fucoidan, we screened bacteria in the guy contents of the sea cucumber ...
Takeshi, Sakai, Kumiko, Ishizuka, Ikunoshin, Kato   +2 more
openaire   +2 more sources

[Hydrocarbon metabolism in a marine bacterium].

Biochimie, 1977
The marine bacterium L.16.1 (Alcaligenes sp.) grows preferentially on alkanes (C10 to C18) with a very high growth yield (98 per cent); optimal growth depends strictly on the presence of a well-defined NaCl concentration (100 mM). Our strain is constitutive for the enzymatic systems responsible for the oxidation of alkanes to fatty acids, i.e.
J C, Bertrand, H J, Doux, E, Azoulay
openaire   +1 more source

The smallest ssDNA phage infecting a marine bacterium

Environmental Microbiology, 2018
Summary In the marine environment, only a few lytic single‐stranded DNA (ssDNA) phages have been isolated and characterized, despite the fact that diverse ssDNA bacteriophages have been discovered via metagenomic studies.
Yuanchao Zhan, Feng Chen
openaire   +3 more sources

NUTRITION AND METABOLISM OF MARINE BACTERIA: XIV. ON THE MECHANISM OF LYSIS OF A MARINE BACTERIUM

Canadian Journal of Microbiology, 1965
Electron micrographs of thin sections of cell envelope preparations of a marine pseudomonad suspended in 0.5 M NaCl showed the presence of two unit membranes at the periphery. When suspended in 0.01 M NaCl the two membranes became infinitely separated and both non-dialyzable and dialyzable material appeared in solution.
F L, Buckmire, R A, MacLeod
openaire   +2 more sources