Results 51 to 60 of about 1,193,841 (222)

The pangenome of (Antarctic) Pseudoalteromonas bacteria: evolutionary and functional insights

open access: yesBMC Genomics, 2017
Pseudoalteromonas is a genus of ubiquitous marine bacteria used as model organisms to study the biological mechanisms involved in the adaptation to cold conditions. A remarkable feature shared by these bacteria is their ability to produce secondary metabolites with a strong antimicrobial and antitumor activity. Despite their biotechnological relevance,
Emanuele Bosi   +10 more
openaire   +6 more sources

Monospecific cover crops perpetuate soil biotic homogenization in croplands across diverse soils

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Croplands are known to support significant soil biotic homogenization. Cover crops are commonly used as a sustainable agriculture practice; however, many times these cover crops are composed of single‐species.
Sibo Shi   +8 more
wiley   +1 more source

Adaptations of the antarctic bacterium Paenibacillus tundrae IMV B-7915 to copper (II) chloride exposure

open access: yesУкраїнський антарктичний журнал, 2023
Heavy metals are common in Antarctic habitats. However, the adaptations of Antarctic microorganisms to heavy metals are poorly understood. One of the mechanisms of toxicity of transition metals is the formation of free radicals which damage the cell ...
S. Komplikevych   +6 more
doaj   +1 more source

A comparative analysis of cell death signalling in RNA and DNA virus infections and potential inhibitory strategies

open access: yesThe FEBS Journal, EarlyView.
RNA and DNA viruses can manipulate host cell death through various mechanisms. RNA viruses (H1N1, SARS‐CoV‐2) induce acute apoptosis, necroptosis, and pyroptosis to promote rapid viral transmission and epithelial barrier damage. In contrast, DNA viruses (HSV‐1, EBV) regulate these mechanisms to sustain a lytic‐latency cycle, evade immune response and ...
Panagiotis Keramidas   +4 more
wiley   +1 more source

Characterisation of Hydrocarbon Degrading Antarctic Pseudomonas species [PDF]

open access: yes, 2013
Hydrocarbon contamination of Antarctica poses a threat to the unique and fragile ecosystems of this continent. Bioremediation, utilising indigenous hydrocarbon-degrading bacteria, has been proposed as an environmentally friendly method for clean up of ...
Rhodes, Phillippa Louise
core  

Aerobiology over Antarctica – a new initiative for atmospheric ecology [PDF]

open access: yes, 2016
The role of Aerial dispersal in shaping patterns of biodiversity remains poorly understood, mainly due to a lack of coordinated efforts in gathering data at appropriate temporal and spatial scales.
Vivian Helena Pellizari   +117 more
core   +1 more source

Unveiling microbial guilds and symbiotic relationships in Antarctic sponge microbiomes

open access: yesScientific Reports
Marine sponges host diverse microbial communities. Although we know many of its ecological patterns, a deeper understanding of the polar sponge holobiont is still needed.
Mario Moreno-Pino   +8 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.

open access: yesPLoS 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   +5 more
doaj   +1 more source

Breaking the ice: multiple origins of ice‐binding/antifreeze proteins

open access: yesThe FEBS Journal, EarlyView.
Ice‐binding proteins (IBPs) evolved independently in many organisms during Cenozoic cooling and glaciation. In flounders, α‐helical IBPs evolved from an antiviral protein, while similar IBPs arose independently from different progenitors in three other fish lineages.
Laurie A. Graham, Peter L. Davies
wiley   +1 more source

Mercury-resistant bacteria in Antarctic ecosystems

open access: yesFaktori eksperimental'noi evolucii organizmiv, 2018
Aim. The research was focused on the assessment of the possible resistance of Antarctic microorganisms to mercury ions. Methods. Conventional microbiological methods of introducing of decimal dilutions to agar medium. Results. Microorganisms resistant to Hg2+ in high concentrations (up to 500 mg/l) were discovered among samples from Antarctica.
I. B. Sioma   +2 more
openaire   +2 more sources

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