Results 51 to 60 of about 16,549 (213)
Pseudomonas guineae sp. nov., a novel psychrotolerant bacterium from an Antarctic environment [PDF]
International Journal of Systematic and Evolutionary Microbiology, 2007 Two Gram-negative, cold-adapted, aerobic bacteria, designated strains M8Tand M6, were isolated from soil collected from the South Shetland Islands. The organisms were rod-shaped, catalase- and oxidase-positive and motile by means of polar flagella. These two psychrotolerant strains grew between −4 and 30 °C.
Mercadé Gil, M. Elena +2 more
openaire +3 more sources
Influence of bioturbation by the polychaete Nereis diversicolor on the structure of bacterial communities in oil contaminated coastal sediments [PDF]
, 2007 Patterns of change in the structure of bacterial communities monitored by ribosomal intergenic spacer analysis (RISA) in oil contaminated sediments inhabited or not by the marine polychaete Nereis diversicolor were studied during 45 days under laboratory
Acquaviva, Monique +6 more
core +5 more sources
Microbial Cell Factories, 2021 Background Microbes are present in almost every environment on Earth, even in those with extreme environmental conditions such as Antarctica, where rocks may represent the main refuge for life.
V. Carrasco +7 more
doaj +1 more source
Microorganisms, 2022 Antarctica is a mosaic of extremes. It harbors active polar volcanoes, such as Deception Island, a marine stratovolcano having notable temperature gradients over very short distances, with the temperature reaching up to 100 °C near the fumaroles and ...
Júnia Schultz +13 more
doaj +1 more source
An ice-binding protein from an Antarctic sea ice bacterium [PDF]
FEMS Microbiology Ecology, 2007 An Antarctic sea ice bacterium of the Gram-negative genus Colwellia, strain SLW05, produces an extracellular substance that changes the morphology of growing ice. The active substance was identified as a approximately 25-kDa protein that was purified through its affinity for ice. The full gene sequence was determined and was found to encode a 253-amino
James A. Raymond +2 more
openaire +3 more sources
PLoS ONE, 2023 Gram-positive, aerobic, motile, rod-shaped, mesophilic epiphytic bacterium Planomicrobium okeanokoites was isolated from the surface of endemic species Himantothallus grandifolius in Larsemann Hills, Eastern Antarctica.
Khem Chand Saini +7 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 ...
Ambrožič Avguštin, Jerneja +9 more
core +3 more sources
Life in the Cold: Proteomics of the Antarctic Bacterium Pseudoalteromonas haloplanktis [PDF]
, 2012 It is frequently overlooked that the majority (>80%) of the Earth’s biosphere is cold and permanently exposed to temperatures below 5 °C (Rodrigues & Tiedje, 2008). Such low mean temperatures mainly arise from the fact that ~70% of the Earth’s surface is covered by oceans that have a constant temperature of 4°C below 1000 m depth, irrespective of the ...
Piette, Florence +4 more
openaire +3 more sources
A hyperactive, Ca2+-dependent antifreeze protein in an Antarctic bacterium [PDF]
FEMS Microbiology Letters, 2005 In cold climates, some plants and bacteria that cannot avoid freezing use antifreeze proteins (AFPs) to lessen the destructive effects of ice recrystallization. These AFPs have weak freezing point depression activity, perhaps to avoid sudden, uncontrolled growth of ice.
Jack A, Gilbert +2 more
openaire +2 more sources
Deep- Sea Bacteria And Their Biotechnological Potentials [PDF]
, 2004 Deep-sea environment characterized by its low temperature, high hydrostatic pressure, limited nutrient contents, and constant darkness has been a hostile environment for most marine microorganisms.
Karna Radjasa, Ocky
core +2 more sources