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

