Results 261 to 270 of about 142,687 (296)

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

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
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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

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
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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

Marine lysozyme from a marine bacterium that inhibits angiogenesis and tumor growth

Applied Microbiology and Biotechnology, 2008
Recent studies suggest that lysozyme, rich in hen egg, has an antitumor function. In the present study, we investigated the antitumor and antiangiogenesis effects of a newly isolated marine lysozyme both in vitro and in vivo. First, we showed that this marine-derived lysozyme specifically inhibits the proliferation of endothelial cells (ECV304) in a ...
Junli, Ye, Chunbo, Wang, Xuehong, Chen, Shenbo, Guo, Mi, Sun   +4 more
openaire   +2 more sources

Lipids of the marine bacterium Flexibacter polymorphus

Archives of Microbiology, 1977
This paper reports on the total fatty acid composition of a marine bacterium representative of the genus Flexibacter. Flexibacter polymorphus is unusual in containing a high proportion of the polunsaturated acid C20:5ω3 whilst the level of branched fatty acids is low.
R. B. Johns, G. J. Perry
openaire   +1 more source

[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
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Pseudomonic acid derivatives from a marine bacterium

Experientia, 1992
The spongeDarwinella rosacea was found to harbor a host of marine microorganisms. One of these bacteria was identified as a marineAlteromonas species. The organic extract of this bacterium was antimicrobial, and the activity was traced to two novel pseudomonic acid derivatives1 and7.
D. B. Stierle, A. A. Stierle
openaire   +1 more source

Denitrification by a marine bacterium Pseudomonas nautica strain 617

Annales de l'Institut Pasteur / Microbiologie, 1987
A bacterial strain was isolated from a marine sediment highly contaminated by hydrocarbons. From taxonomic tests, it was identified as Pseudomonas nautica. This marine strain was able to grow on nitrate, nitrite and nitrous oxide as an electron acceptor. The terminal product from the denitrification was dinitrogen. Thus, P.
P, Bonin, M, Gilewicz, J C, Bertrand
openaire   +2 more sources