Results 31 to 40 of about 977,545 (224)

Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria [PDF]

Microbial Ecology, 2005
Exopolysaccharides (EPS) may have an important role in the Antarctic marine environment, possibly acting as ligands for trace metal nutrients such as iron or providing cryoprotection for growth at low temperature and high salinity. Ten bacterial strains, isolated from Southern Ocean particulate material or from sea ice, were characterized.
Nichols, Carol, Lardiere, Sandrine, Bowman, John, Nichols, Peter, Gibson, John, Guezennec, Jean   +5 more
openaire   +2 more sources

Extremophiles in an Antarctic Marine Ecosystem [PDF]

, 2016
Recent attempts to explore marine microbial diversity and the global marine microbiome have indicated a large proportion of previously unknown diversity.
Dickinson, Iain, Maria L. Ávila-Jiménez, Ávila-Jiménez, Maria, Schlitt, Thomas, Iain Dickinson, Michael Thorne, Maria Ávila-Jiménez, Michael A.S. Thorne, William Goodall-Copestake, Ávila-Jiménez, Maria L., Pearce, David, Pearce, David A., David Pearce, Thomas Schlitt, Thorne, Michael A.S., David A. Pearce, Goodall-Copestake, William, Thorne, Michael   +17 more
core   +1 more source

A Metataxonomic Approach Reveals Diversified Bacterial Communities in Antarctic Sponges

Marine Drugs, 2021
Marine sponges commonly host a repertoire of bacterial-associated organisms, which significantly contribute to their health and survival by producing several anti-predatory molecules. Many of these compounds are produced by sponge-associated bacteria and
Nadia Ruocco, Roberta Esposito, Marco Bertolino, Gianluca Zazo, Michele Sonnessa, Federico Andreani, Daniela Coppola, Daniela Giordano, Genoveffa Nuzzo, Chiara Lauritano, Angelo Fontana, Adrianna Ianora, Cinzia Verde, Maria Costantini   +13 more
doaj   +1 more source

Biological activities of ethanolic extracts from deep-sea antarctic marine sponges [PDF]

, 2013
We report on the screening of ethanolic extracts from 33 deep-sea Antarctic marine sponges for different biological activities. We monitored hemolysis, inhibition of acetylcholinesterase, cytotoxicity towards normal and transformed cells and growth ...
Jerneja Avguštin, Jerneja Ambrožič Avguštin, Dorte Janussen, Ambrožič Avguštin, Jerneja, Strugar, Gašper, Silke Kauferstein, Tom Turk, Mebs, Dietrich, Dietrich Mebs, Turk, Tom, Kauferstein, Silke, Rok Kosmina, Gašper Strugar, Čivović, Sandra, Janussen, Dorte, Urška Batista, Kristina Sepčić, Sandra Čivović, Kosmina, Rok, Batista, Urška, Sepčić, Kristina   +20 more
core   +1 more source

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

Diversity, 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

Metagenomic analysis of a a southern maritime Antarctic soil [PDF]

, 2012
Our current understanding of Antarctic soils is derived from direct culture on selective media, biodiversity studies based on clone library construction and analysis, quantitative PCR amplification of specific gene sequences and the application of ...
David Anthony Pearce, Thorne, Michael A. S., Wellington, E. M., Andy Hodson, Kevin eNewsham, Michael A. S. Thorne, Calvo-Bado, Leo, Laskaris, Paris, Paris Laskaris, Calvo-Bado, Leo A., Hodson, A., Leo Calvo-Bado, Pearce, D. A., Elizabeth M H Wellington, Wellington, Elizabeth M., Thorne, Michael A.S., Thorne, Michael, Leo eCalvo-Bado, Paris eLaskaris, Calvo-Bado, L., Martin Krsek, Andy Hodson, Kevin K. Newsham, Thorne, M. A. S., Elizabeth M. Wellington, Laskaris, P., Pearce, David, Hodson, Andrew J., Martin eKrsek, Pearce, David A., David A. Pearce, Michael eThorne, Andy eHodson, Newsham, K. K., Krsek, M., Krsek, Martin, Wellington, Elizabeth, David A. Pearce, Newsham, Kevin, Wellington, E. M. H., Newsham, Kevin K., Hodson, Andy   +41 more
core   +1 more source

Molecular support for Pleistocene persistence of the continental Antarctic moss Bryum argenteum [PDF]

, 2010
We examined sequence variation of ITS and phy2 for Bryum argenteum from Antarctica, sub-Antarctic, New Zealand and Australia to understand better taxonomic delimitations and resolve relationships between these geographic regions. Bryum argenteum has been
Gemmill, C., Hills, S., Chrissen E.C. Gemmill, Stevens, M., Stevens, Mark I., Mark I. Stevens, Simon F.K. Hills, Gemmill, Chrissen E.C., Hills, Simon F.K.   +8 more
core   +1 more source

Ecophysiological characterization of cultivable Antarctic psychrotolerant marine bacteria able to degrade hydrocarbons

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2005
The basic understanding of both the physiology and ecology of psychrotolerant Antarctic bacteria is a crucial step for the optimization of their biodegradative activity in cold environments. The detection of cold-adapted hydrocarbon-degrading bacteria in
De Domenico, M, Gentile, G, Michaud, L, Lo Giudice, A, Bruni, V   +4 more
doaj   +1 more source

Diverse hypolithic refuge communities in the McMurdo Dry Valleys [PDF]

, 2010
Hyper-arid deserts present extreme challenges to life. The environmental buffering provided by quartz and other translucent rocks allows hypolithic microbial communities to develop on sub-soil surfaces of such rocks.
Pointing, Stephen B., Don A. Cowan, Nuraan Khan, Cary, S. Craig, Stephen B. Pointing, Cowan, Don A., Khan, Nuraan, S. Craig Cary   +7 more
core   +1 more source

Estimating the distribution of demand for Antarctic krill (Euphauisa superba) from land-based predators at South Georgia [PDF]

, 2007
South Georgia is renowned for the abundance of Antarctic krill (Euphausia superba) and a range of krill predators. Variability in krill availability at a range of scales, and the consequences of this for predator-prey interactions, mean that quantifying ...
Swarbrick, Matthew Lewis
core   +2 more sources