Results 41 to 50 of about 5,057 (217)

Antifreeze Proteins and Their Practical Utilization in Industry, Medicine, and Agriculture

open access: yesBiomolecules, 2020
Antifreeze proteins (AFPs) are specific proteins, glycopeptides, and peptides made by different organisms to allow cells to survive in sub-zero conditions.
Azadeh Eskandari   +3 more
doaj   +1 more source

Diversity, Ecological Role and Biotechnological Potential of Antarctic Marine Fungi

open access: yesJournal of Fungi, 2021
The Antarctic Ocean is one of the most remote and inaccessible environments on our planet and hosts potentially high biodiversity, being largely unexplored and undescribed.
Stefano Varrella   +5 more
doaj   +1 more source

The gyrB gene is a useful phylogenetic marker for exploring the diversity of flavobacterium strains isolated from terrestrial and aquatic habitats in Antarctica [PDF]

open access: yes, 2011
Within the phylum Bacteroidetes, the gyrB gene, encoding for the B subunit of the DNA gyrase, has been used as phylogenetic marker for several genera closely related to Flavobacterium.
Peeters, Karolien, Willems, Anne
core   +1 more source

Culturable heterotrophic bacteria from Potter Cove, Antarctica, and their hydrolytic enzymes production [PDF]

open access: yesPolar Research, 2012
Affiliations of the dominant culturable bacteria isolated from Potter Cove, South Shetland Islands, Antarctica, were investigated together with their production of cold-active hydrolytic enzymes.
Mauro Tropeano   +6 more
doaj   +1 more source

Some Like It Hot –Structural Changes in Extremophile Rubredoxin at 120 °C

open access: yesAngewandte Chemie, Volume 138, Issue 5, 28 January 2026.
We reveal the high temperature crystal structure of a hyperthermophilic (Pyrococcus furiosus) rubredoxin at 393 K (120 °C), together with multiple complementary structures down to 100 K. The results are compared with molecular dynamics calculations. Significant changes in H‐bonding are observed.
Tzanko Doukov   +4 more
wiley   +2 more sources

Reconstruction and Analysis of Thermodynamically Constrained Models Reveal Metabolic Responses of a Deep-Sea Bacterium to Temperature Perturbations

open access: yesmSystems, 2022
Microbial acclimation to different temperature conditions can involve broad changes in cell composition and metabolic efficiency. A systems-level view of these metabolic responses in nonmesophilic organisms, however, is currently missing.
Keith Dufault-Thompson   +4 more
doaj   +1 more source

Disappearing Kilimanjaro snow—Are we the last generation to explore equatorial glacier biodiversity?

open access: yesEcology and Evolution, 2019
Glaciation accompanied our human ancestors in Africa throughout the Pleistocene. Regrettably, equatorial glaciers and snow are disappearing rapidly, and we are likely the last generation who will get to know these peculiar places. Despite the permanently
Krzysztof Zawierucha, Daniel H. Shain
doaj   +1 more source

Microbial Metabolism in Soil at Subzero Temperatures: Adaptation Mechanisms Revealed by Position-Specific 13C Labeling

open access: yesFrontiers in Microbiology, 2017
Although biogeochemical models designed to simulate carbon (C) and nitrogen (N) dynamics in high-latitude ecosystems incorporate extracellular parameters, molecular and biochemical adaptations of microorganisms to freezing remain unclear.
Ezekiel K. Bore   +7 more
doaj   +1 more source

Novel and Unexpected Microbial Diversity in Acid Mine Drainage in Svalbard (78° N), Revealed by Culture-Independent Approaches

open access: yesMicroorganisms, 2015
Svalbard, situated in the high Arctic, is an important past and present coal mining area. Dozens of abandoned waste rock piles can be found in the proximity of Longyearbyen. This environment offers a unique opportunity for studying the biological control
Antonio García-Moyano   +5 more
doaj   +1 more source

Psychrophilic Bacterial Phosphate-Biofertilizers: A Novel Extremophile for Sustainable Crop Production under Cold Environment

open access: yesMicroorganisms, 2021
Abiotic stresses, including low-temperature environments, adversely affect the structure, composition, and physiological activities of soil microbiomes.
Asfa Rizvi   +4 more
doaj   +1 more source

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