Results 31 to 40 of about 337 (124)
A Small RNA Is Linking CRISPR–Cas and Zinc Transport
Frontiers in Molecular Biosciences, 2021 The function and mode of action of small regulatory RNAs is currently still understudied in archaea. In the halophilic archaeon Haloferax volcanii, a plethora of sRNAs have been identified; however, in-depth functional analysis is missing for most of ...
Pascal Märkle +7 more
doaj +1 more source
Improved growth and morphological plasticity of Haloferax volcanii [PDF]
Microbiology, 2020 Abstract Some microbes display pleomorphism, showing variable cell shapes in a single culture, whereas others differentiate to adapt to changed environmental conditions. The pleomorphic archaeon Haloferax volcanii commonly forms discoid-shaped (‘plate’) cells in culture, but may ...
Roshali T. de Silva +5 more
openaire +3 more sources
Production of an Extracellular Polysaccharide by Haloferax mediterranei [PDF]
Applied and Environmental Microbiology, 1988 The extremely halophilic archaebacterium Haloferax mediterranei produces an exocellular polymeric substance that gives the colonies a typical mucous character and is responsible for the appearance of a superficial layer in unshaken liquid medium.
J, Antón +2 more
openaire +2 more sources
A bioluminescent reporter for the halophilic archaeon Haloferax volcanii
Extremophiles, 2020 Haloarchaea have evolved to thrive in hypersaline environments. Haloferax volcanii is of particular interest due to its genetic tractability; however, few in vivo reporters exist for halophiles. Haloarchaeal proteins evolved characteristics that promote proper folding and function at high salt concentrations, but many mesophilic reporter proteins lack ...
Chris R. Davis +2 more
openaire +3 more sources
Food Technology and Biotechnology, 2015 Haloarchaea are found at very high concentrations in salt-conditioned environments, hence produce enzymes which are able to catalyze reactions under harsh conditions, typical of many industrial processes.
Bhakti Bajpai +2 more
doaj +1 more source
Characterisation of chlorate reduction in the haloarchaeon Haloferax mediterranei [PDF]
Biochimica et Biophysica Acta (BBA) - General Subjects, 2015 Haloferax mediterranei is a denitrifying haloarchaeon using nitrate as a respiratory electron acceptor under anaerobic conditions in a reaction catalysed by pNarGH. Other ions such as bromate, perchlorate and chlorate can also be reduced.Hfx. mediterranei cells were grown anaerobically with nitrate as electron acceptor and chlorate reductase activity ...
Martínez-Espinosa, Rosa María +2 more
openaire +3 more sources
A Halocin Promotes DNA Uptake in Haloferax mediterranei [PDF]
Frontiers in Microbiology, 2019 Halocins are antimicrobial peptides or proteins that are produced by halophilic archaea. Although their function in inhibiting the growth of closely related haloarchaeal strains is well known, other physiological functions of halocins have also been proposed in recent years.
Shaoxing Chen +6 more
openaire +3 more sources
Chemistry – A European Journal, EarlyView.Production of PHAs by haloarchaea: the production of carotenoids and PHAs is concomitant, and consequently, various metabolic pathways compete for the carbon source. This results in a loss of PHA production efficiency. Efficient control of carbon source utilization (favoring certain metabolic pathways at the expense of others) is the key to the ...
Rosa María Martínez‐Espinosa
wiley +1 more source
S‐Adenosylmethionine (SAM) hydrolases counter increased SAM epimerisation in thermophilic archaea
The FEBS Journal, EarlyView.S‐Adenosyl‐l‐methionine (SAM) is a vital enzyme cofactor. Epimerisation at the sulfonium centre of biologically active (SS,SCα)‐SAM is driven by heat, yielding biologically inactive (RS,SCα)‐SAM. Here, two novel archaeal SAM hydrolases from the thermophilic Sulfolobus acidocaldarius and the halophilic Haloferax volcanii are shown to cleave (RS,SCα)‐SAM.
Agnes Bartels +7 more
wiley +1 more source
Architecture and Evolution of Prokaryotic Multicellularity: Common Patterns and Diversity
Molecular Microbiology, EarlyView.Prokaryotes form diverse multicellular structures, like biofilms, filaments, and aggregates, comprising hallmark traits such as adhesion, communication, differentiation, and programmed cell death. This review explores how these forms develop, function, and evolve in response to environmental cues.
Genevieve Sohl +3 more
wiley +1 more source