Results 71 to 80 of about 2,069 (166)

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, Volume 599, Issue 23, Page 3417-3443, December 2025.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Extracellular proteases from eight psychrotolerant antarctic strains

Microbiological Research, 2004
Extracellular proteases from 8 Antarctic psychrotolerant Pseudomonas sp. strains were purified and characterised. All of them are neutral metalloproteases, have an apparent molecular mass of 45kDa, optimal activity at 40 degrees C and pH 7-9, retaining significant activity at pH 5-11.
Vazquez, Susana C, Coria, Silvia H, Mac Cormack, Walter P   +2 more
openaire   +2 more sources

Comparison of the oxidative stress response of two Antarctic fungi to different growth temperatures

Polish Polar Research, 2017
Two fungal strains, isolated from Livingston Island, Antarctica (Penicillium commune 161, psychrotolerant and Aspergillus glaucus 363, mesophilic) were investigated for a relationship between growth temperature and oxidative stress response.
Kostadinova Nedelina, Tosi Solveig, Spassova Boryana, Angelova Maria   +3 more
doaj   +1 more source

Potential of Subterranean Microbes: High‐Throughput Screening for Industrially Relevant Enzymatic Activities in Dinaric Caves

MicrobiologyOpen, Volume 14, Issue 6, December 2025.
Microbial communities from seven Dinaric cave ecosystems were surveyed for their laccase, urethanase, and protease enzymatic activities. The findings suggested potential applications in bioremediation, the biodegradation of synthetic polymers, and industrial biotechnology, highlighting the importance of biodiversity conservation.
Justinas Babinskas, Jokūbas Krutkevičius, Lada Lukić Bilela, Renata Bešta‐Gajević, Inga Matijošytė   +4 more
wiley   +1 more source

Endotoxin Structures in the Psychrophiles Psychromonas marina and Psychrobacter cryohalolentis Contain Distinctive Acyl Features

Marine Drugs, 2014
Lipid A is the essential component of endotoxin (Gram-negative lipopolysaccharide), a potent immunostimulatory compound. As the outer surface of the outer membrane, the details of lipid A structure are crucial not only to bacterial pathogenesis but also ...
Charles R. Sweet, Giancarlo M. Alpuche, Corinne A. Landis, Benjamin C. Sandman   +3 more
doaj   +1 more source

Oxychlorine Species on Mars: A Review

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Oxychlorine species (mainly perchlorate and chlorate) have been identified at multiple locations on the surface of Mars by both orbiter and in situ rovers. They have also been found in martian meteorites. Cl‐isotopes in meteoritic minerals suggest that an oxychlorine cycle has been operating on the martian surface for the last ∼4 billion years.
Kaushik Mitra
wiley   +1 more source

Unveiling the Potential of Lentilactobacillus hilgardii in Malolactic Fermentation: Comparative Genomics and Fermentation Dynamics

Microbial Biotechnology, Volume 18, Issue 12, December 2025.
This study explores the metabolic potential of Lentilactobacillus hilgardii for malolactic fermentation in winemaking. Genomic and in silico analyses, combined with experimental validation, reveal its resilience at low temperatures and unique enzymatic traits. Comparative insights with Oenococcus oeni highlight L.
Giacomo Mantegazza, Nicola Mangieri, Elnaz Vojoudi Yazdi, Pasquale Russo, Diego Mora, Giorgio Gargari   +5 more
wiley   +1 more source

Evidence for Trace Gas Metabolism and Widespread Antibiotic Synthesis in an Abiotically Driven, Antarctic Soil Ecosystem

Environmental Microbiology Reports, Volume 17, Issue 6, December 2025.
We analysed bacterial diversity in 18 shotgun metagenomes from a model soil ecosystem in Antarctica using the VEBA metagenome pipeline. We recovered 701 medium‐to‐high quality MAGs and found that these bacteria metabolise trace gases, produce potentially novel antibiotics and employ extremotolerance phenotypes to survive the extreme Antarctic soil ...
A. R. Thompson, B. J. Adams, I. D. Hogg, S. Yooseph   +3 more
wiley   +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

Identification and Global Distribution of a Core Microbiome From High‐Arctic Lakes

Environmental Microbiology, Volume 27, Issue 10, October 2025.
Identification of the core microbiome from clear water lakes in the Arctic reveals non‐unique members when compared with a conceptually similar lake from a more temperate region. Biogeographic assignments revealed that the genera from this core were widespread globally within four general habitat categories.
Emily N. Hallett, Jérôme Comte
wiley   +1 more source