Results 31 to 40 of about 142,687 (296)

Purification and Characterization of a Novel Alginate Lyase from the Marine Bacterium Bacillus sp. Alg07

open access: yesMarine Drugs, 2018
Alginate oligosaccharides with different bioactivities can be prepared through the specific degradation of alginate by alginate lyases. Therefore, alginate lyases that can be used to degrade alginate under mild conditions have recently attracted public ...
Peng Chen   +4 more
doaj   +1 more source

Antibacterial Activity Ods Fractions of Marine Sponge Auletta SP. Against Mycobacterium Smegmatis [PDF]

open access: yes, 2019
The marine sponge collected from tropical coral reefs in Manado North Sulawesi Indonesia was screened for antimicrobial activities. In the screening program to search for antituberculotic inhibitors, the result found that the ethanol extract ODS ...
Sumilat, D. A. (Deiske)
core   +2 more sources

Sodium ion-proton antiport in a marine bacterium [PDF]

open access: yesJournal of Bacteriology, 1978
Alteromonas haloplanktis ejected protons in response to a brief respiratory pulse; the rate of decay of the resulting pH change was accelerated when Na+ was present in the suspension medium. The addition of an anaerobic NaCl solution to an essentially Na+-free anaerobic bacterial suspension induced the acidification of the suspension medium.
D F, Niven, R A, MacLeod
openaire   +2 more sources

Isolation and identification of an alginate lyase-producing marine bacterium strain and its enzymological characteristics

open access: yes浙江大学学报. 农业与生命科学版, 2013
Alginate polysaccharide produced by marine brown algae or certain Gram-negative bacteria is a linear anionic binary copolymer of β-D-mannuronic acid (M) and α-L-guluronic acid (G) residues. Alginate lyase (EC 4.2.2.3; EC 4.2.2.11), also known as alginase
TANG Haiqing   +2 more
doaj   +1 more source

Genomic blueprints of sponge-prokaryote symbiosis are shared by low abundant and cultivatable Alphaproteobacteria [PDF]

open access: yes, 2019
Marine sponges are early-branching, filter-feeding metazoans that usually host complex microbiomes comprised of several, currently uncultivatable symbiotic lineages.
Cox, Cymon   +6 more
core   +4 more sources

Double Maximum Ratios of Viruses to Bacteria in the Water Column: Implications for Different Regulating Mechanisms

open access: yesFrontiers in Microbiology, 2019
The viruses play an important role in limiting bacterial abundance in oceans and, hence, in regulating bacterial biogeochemical functions. A cruise was conducted in September 2005 along a transect in the deep South China Sea (SCS). The results showed the
Lei He   +6 more
doaj   +1 more source

Sodium ion-substrate symport in a marine bacterium [PDF]

open access: yesJournal of Bacteriology, 1980
Anaerobic suspensions of Alteromonas haloplanktis accumulated alpha-aminoisobutyric acid, by a sodium-dependent process, in response to an artificially imposed membrane potential in the presence or absence of a transmembrane chemical gradient of sodium.
D F, Niven, R A, MacLeod
openaire   +2 more sources

Marine crude-oil biodegradation: a central role for interspecies interactions [PDF]

open access: yes, 2012
The marine environment is highly susceptible to pollution by petroleum, and so it is important to understand how microorganisms degrade hydrocarbons, and thereby mitigate ecosystem damage. Our understanding about the ecology, physiology, biochemistry and
Folwell, Benjamin D   +3 more
core   +1 more source

Spontaneous mutations of a model heterotrophic marine bacterium [PDF]

open access: yesThe ISME Journal, 2017
Abstract Heterotrophic marine bacterioplankton populations display substantive genomic diversity that is commonly explained to be the result of selective forces imposed by resource limitation or interactions with phage and predators. Here we use a mutation-accumulation experiment followed by whole-genome sequencing of mutation lines to ...
Ying Sun   +5 more
openaire   +2 more sources

Studies on Collagenase of a Marine Bacterium [PDF]

open access: yesAgricultural and Biological Chemistry, 1971
A marine bacterium, strain 7-246-6, isolated from sea water was found to elaborate aerobically an extracellular enzyme specific for native collagen and gelatin. The strain was identified as Pseudomonas marinoglutinosa from the morphological and physiological characteristics, though the strain 7-246-6 slightly differs from the latter in the following ...
Hanada Kazunori   +6 more
openaire   +3 more sources

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