Results 21 to 30 of about 9,152 (177)

Bacteria Isolated From the Antarctic Sponge Iophon sp. Reveals Mechanisms of Symbiosis in Sporosarcina, Cellulophaga, and Nesterenkonia

open access: yesFrontiers in Microbiology, 2021
Antarctic sponges harbor a diverse range of microorganisms that perform unique metabolic functions for nutrient cycles. Understanding how microorganisms establish functional sponge–microbe interactions in the Antarctic marine ecosystem provides clues ...
Mario Moreno-Pino   +5 more
doaj   +1 more source

Membrane fatty acid analysis of Antarctic bacteria [PDF]

open access: yesFEMS Microbiology Letters, 1993
Randomly selected strains of a bacterial collection of marine sea-ice bacteria from Antarctica were analyzed to obtain a profile of the membrane fatty acids. Results showed that short chain saturated and unsaturated fatty acids were more common in the psychrotrophs when compared to psychrophiles.
K R, Rotert, A P, Toste, J G, Steiert
openaire   +2 more sources

Comparison of Alginate Utilization Pathways in Culturable Bacteria Isolated From Arctic and Antarctic Marine Environments

open access: yesFrontiers in Microbiology, 2021
Alginate, mainly derived from brown algae, is an important carbon source that can support the growth of marine microorganisms in the Arctic and Antarctic regions. However, there is a lack of systematic investigation and comparison of alginate utilization
Qian-Qian Cha   +20 more
doaj   +1 more source

Proteorhodopsin-Bearing Bacteria in Antarctic Sea Ice [PDF]

open access: yesApplied and Environmental Microbiology, 2010
ABSTRACT Proteorhodopsins (PRs) are widespread bacterial integral membrane proteins that function as light-driven proton pumps. Antarctic sea ice supports a complex community of autotrophic algae, heterotrophic bacteria, viruses, and protists that are an important food source for higher trophic levels in ice-covered regions of ...
Eileen Y, Koh   +7 more
openaire   +2 more sources

Enzymatic Activity of Psychrotolerant Antarctic Bacteria [PDF]

open access: yesMikrobiolohichnyi Zhurnal, 2021
The Antarctic region has significant potential to study the biodiversity of microorganisms and to search for bacterial producers of glycolytic and proteolytic enzymes with new properties. The aim was to study the extracellular glycosidase and proteolytic activity of four bacteria strains isolated from black lichens of the cliffs of Galindez Island in ...
N.V. Borzova   +4 more
openaire   +1 more source

Collection of Environmental Variables and Bacterial Community Compositions in Marian Cove, Antarctica, during Summer 2018

open access: yesData, 2021
Marine bacteria, which are known as key drivers for marine biogeochemical cycles and Earth’s climate system, are mainly responsible for the decomposition of organic matter and production of climate-relevant gases (i.e., CO₂, N₂O, and CH₄).
Hyo-Ryeon Kim   +3 more
doaj   +1 more source

Imported anthropogenic bacteria may survive the Antarctic winter and introduce new genes into local bacterial communities

open access: yesPolish Polar Research, 2016
We studied dynamic changes in anthropogenic bacterial communities at a summer-operated Czech research base (the Mendel Research Station) in the Antarctic during 2012 and 2013.
Brat Kristian   +5 more
doaj   +1 more source

Gastrointestinal Bacteria of Certain Antarctic Birds and Mammals [PDF]

open access: yesApplied Microbiology, 1970
An investigation was carried out of the aerobic gram-negative intestinal flora of 158 penguins, 30 skuas, and 66 seals from the Antarctic and sub-Antarctic zones and Phillip Island. Among penguins and seals, 17% and 11%, respectively, were devoid of aerobic enteric organisms, but microscopic examination showed the presence of other
Z, Soucek, R, Mushin
openaire   +2 more sources

Communication within East Antarctic Soil Bacteria [PDF]

open access: yesApplied and Environmental Microbiology, 2019
Quorum sensing, a type of bacterial communication, is widely known to regulate many processes, including those that confer a survival advantage. However, little is known about communication by bacteria residing within Antarctic soils. Employing a combination of bacterial biosensors, analytical techniques, and genome mining, we found a variety of ...
Sin Yin Wong   +4 more
openaire   +2 more sources

Gene Transfer Agent g5 Gene Reveals Bipolar and Endemic Distribution of Roseobacter Clade Members in Polar Coastal Seawater

open access: yesDiversity, 2022
The Roseobacter clade represents one of the most abundant groups of marine bacteria and plays important biogeochemical roles in marine environments. Roseobacter genomes commonly contain a conserved gene transfer agent (GTA) gene cluster.
Yin-Xin Zeng, Hui-Rong Li, Wei Luo
doaj   +1 more source

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