Results 61 to 70 of about 3,353 (150)
Carotenoids as a Protection Mechanism against Oxidative Stress in Haloferax mediterranei [PDF]
, 2020 Haloarchaea are extremophilic microorganisms that in their natural ecosystem encounter several sources of oxidative stress. They have developed different strategies to cope with these harsh environmental conditions, among which bacterioruberin production
Micaela Giani +3 more
core +1 more source
Archaea Signal Recognition Particle Shows the Way
Archaea, Volume 2010, Issue 1, 2010., 2010 Archaea SRP is composed of an SRP RNA molecule and two bound proteins named SRP19 and SRP54. Regulated by the binding and hydrolysis of guanosine triphosphates, the RNA‐bound SRP54 protein transiently associates not only with the hydrophobic signal sequence as it emerges from the ribosomal exit tunnel, but also interacts with the membrane‐associated ...
Christian Zwieb +2 more
wiley +1 more source
Current Research in Biotechnology, 2022 Haloarchaea comprise the extremely halophilic branch of the phylum Euryarchaeota and they are members of the prokaryotic domain Archaea. They thrive best in extremely saline habitats with salt concentrations of 2–5 mol L–1 NaCl, and thus under conditions
Martin Koller, Simon K.-M.R. Rittmann
doaj +1 more source
Lipids of the ultra‐thin square halophilic archaeon Haloquadratum walsbyi
Archaea, Volume 2, Issue 3, Page 177-183, 2008., 2008 The lipid composition of the extremely halophilic archaeon Haloquadratum walsbyi was investigated by thin‐layer chromatography and electrospray ionization‐mass spectrometry. The analysis of neutral lipids showed the presence of vitamin MK‐8, squalene, carotene, bacterioruberin and several retinal isomers.
Simona LoBasso +3 more
wiley +1 more source
Marine Drugs, 2018 Haloferax mediterranei produces C50 carotenoids that have strong antioxidant properties. The response surface methodology (RSM) tool helps to accurately analyze the most suitable conditions to maximize C50 carotenoids production by haloarchaea.
Zaida Montero-Lobato +8 more
doaj +1 more source
Frontiers in Microbiology, 2020 Haloarchaea inhabit high salinity environments worldwide. They are a potentially rich source of crucial biomolecules like carotenoids and industrially useful proteins.
Dipesh Kumar Verma +6 more
doaj +1 more source
Crystal structure of Cruxrhodopsin-3 from Haloarcula vallismortis. [PDF]
PLoS ONE, 2014 Cruxrhodopsin-3 (cR3), a retinylidene protein found in the claret membrane of Haloarcula vallismortis, functions as a light-driven proton pump. In this study, the membrane fusion method was applied to crystallize cR3 into a crystal belonging to space ...
Siu Kit Chan +6 more
doaj +1 more source
Species Widely Distributed in Halophilic Archaea Exhibit Opsin-Mediated Inhibition of Bacterioruberin Biosynthesis [PDF]
Journal of Bacteriology, 2019 All organisms use a variety of mechanisms to allocate limited resources to match their needs in their current environment. Here, we explore how halophilic microbes use a novel mechanism to allow efficient production of rhodopsin, a complex of an opsin protein and a retinal prosthetic group.
Ronald F, Peck +2 more
openaire +2 more sources
Environmental Microbiology Reports, Volume 17, Issue 2, April 2025.This study unveils the diverse biological and physical–chemical characteristics of the salt ponds in Trapani, Sicily, focusing on microbial community structures and environmental parameters across varying salinities. It highlights unique microbial adaptations and the dynamic interactions shaping this Mediterranean hypersaline ecosystem.
Benvenuta Sonia Cusenza +6 more
wiley +1 more source
Haloarchaea May Contribute to the Colour of Avian Plumage in Marine Ecosystems [PDF]
, 2021 Some seabirds or coastal birds such as flamingos or pelicans display elegant pink or reddish colours. These colours are due to pigments that birds cannot synthesize de novo.
Martínez-Espinosa, Rosa María +1 more
core +1 more source