Results 31 to 40 of about 9,152 (177)

Molecular adaptations in Antarctic fish and bacteria

Polar Science, 2010
Marine organisms, living in the cold waters of the Southern Ocean, are exposed to high oxygen concentrations. Cold-adapted organisms have developed networks of defence mechanisms to protect themselves against oxidative stress. The dominant suborder Notothenioidei of the Southern Ocean is one of the most interesting models, within vertebrates, to study ...
Russo R, Riccio A, di Prisco G, Verde C, Giordano D   +4 more
openaire   +4 more sources

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

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

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

Diversity and Physiological Characteristics of Antarctic Lichens-Associated Bacteria [PDF]

Microorganisms, 2021
The diversity of lichen-associated bacteria from lichen taxa Cetraria, Cladonia, Megaspora, Pseudephebe, Psoroma, and Sphaerophorus was investigated by sequencing of 16S rRNA gene amplicons. Physiological characteristics of the cultured bacterial isolates were investigated to understand possible roles in the lichen ecosystem.
Hyun-Ju Noh, Yerin Park, Soon Gyu Hong, Yung Mi Lee   +3 more
openaire   +3 more sources

Isolation by Miniaturized Culture Chip of an Antarctic bacterium Aequorivita sp. with antimicrobial and anthelmintic activity

Biotechnology Reports, 2018
Microbes are prolific sources of bioactive molecules; however, the cultivability issue has severely hampered access to microbial diversity. Novel secondary metabolites from as-yet-unknown or atypical microorganisms from extreme environments have ...
Fortunato Palma Esposito, Colin J. Ingham, Raquel Hurtado-Ortiz, Chantal Bizet, Deniz Tasdemir, Donatella de Pascale   +5 more
doaj   +1 more source

Microbial Community Structure Driven by a Volcanic Gradient in Glaciers of the Antarctic Archipelago South Shetland

Microorganisms, 2021
It has been demonstrated that the englacial ecosystem in volcanic environments is inhabited by active bacteria. To know whether this result could be extrapolated to other Antarctic glaciers and to study the populations of microeukaryotes in addition to ...
Eva García-Lopez, Sandra Serrano, Miguel Angel Calvo, Sonia Peña Perez, Silvia Sanchez-Casanova, Laura García-Descalzo, Cristina Cid   +6 more
doaj   +1 more source

Characterization of Bacterial, Archaeal and Eukaryote Symbionts from Antarctic Sponges Reveals a High Diversity at a Three-Domain Level and a Particular Signature for This Ecosystem.

PLoS ONE, 2015
Sponge-associated microbial communities include members from the three domains of life. In the case of bacteria, they are diverse, host specific and different from the surrounding seawater.
Susana Rodríguez-Marconi, Rodrigo De la Iglesia, Beatriz Díez, Cássio A Fonseca, Eduardo Hajdu, Nicole Trefault   +5 more
doaj   +1 more source

Diversity of Cultivable Microbes From Soil of the Fildes Peninsula, Antarctica, and Their Potential Application

Frontiers in Microbiology, 2020
To explore the diversity and application potential of Antarctic microorganisms, 1208 strains bacteria and fungi were isolated from 5 samples collected from the Fildes Peninsula during China’s 27th and 31st Antarctic expeditions.
Bailin Cong, Xiaofei Yin, Aifang Deng, Jihong Shen, Yongqi Tian, Shaoyun Wang, Huanghao Yang   +6 more
doaj   +1 more source

Trematocine, a Novel Antimicrobial Peptide from the Antarctic Fish Trematomus bernacchii: Identification and Biological Activity

Antibiotics, 2020
Antimicrobial peptides (AMPs) are short peptides active against a wide range of pathogens and, therefore, they are considered a useful alternative to conventional antibiotics.
Giulia Della Pelle, Giulia Perà, Maria Cristina Belardinelli, Marco Gerdol, Martina Felli, Silvia Crognale, Giuseppe Scapigliati, Francesca Ceccacci, Francesco Buonocore, Fernando Porcelli   +9 more
doaj   +1 more source