Results 41 to 50 of about 665 (115)
The goal of this study was to use environmental sequencing of 16S rRNA and bop genes to compare the diversity of planktonic bacteria and archaea across ponds with increasing salinity in the Exportadora de Sal (ESSA) evaporative saltern in Guerrero Negro,
Jesse G Dillon +4 more
doaj +1 more source
We have explored the use of optical oxygen electrodes to study oxygenic photosynthesis and heterotrophic activities in crystallizer brines of the salterns in Eilat, Israel.
Aharon Oren
doaj +1 more source
Reconstructing viral genomes from the environment using fosmid clones: the case of haloviruses. [PDF]
BACKGROUND: Metaviriomes, the viral genomes present in an environment, have been studied by direct sequencing of the viral DNA or by cloning in small insert libraries.
Inmaculada Garcia-Heredia +6 more
doaj +1 more source
The Function of Gas Vesicles in Halophilic Archaea and Bacteria: Theories and Experimental Evidence
A few extremely halophilic Archaea (Halobacterium salinarum, Haloquadratum walsbyi, Haloferax mediterranei, Halorubrum vacuolatum, Halogeometricum borinquense, Haloplanus spp.) possess gas vesicles that bestow buoyancy on the cells. Gas vesicles are also
Aharon Oren
doaj +1 more source
Sensitivity of Haloquadratum and Salinibacter to antibiotics and other inhibitors: implications for the assessment of the contribution of Archaea and Bacteria to heterotrophic activities in hypersaline environments [PDF]
Antibiotics and bile salts have been used to differentiate between heterotrophic activity of halophilic Archaea and Bacteria in saltern ponds. In NaCl-saturated brines of crystallizer ponds, most activity was attributed to Archaea. Following the recent isolation of Haloquadratum, the dominant archaeon in the salterns (reported to be sensitive to ...
Rahel Elevi Bardavid, Aharon Oren
openaire +3 more sources
Cyclic di‐adenylate monophosphate (c‐di‐AMP) is an essential second messenger in bacteria, where it was demonstrated to have a central function in cellular osmoregulation. For archaea, currently little information on second messengers is available. This study proves that c‐di‐AMP is present in vivo in the archaeon Haloferax volcanii and demonstrates ...
Frank Braun +6 more
wiley +1 more source
A 1.1 × 106 Da acidic exopolysaccharide (EPS) was purified from an extremely halophilic archaeon Haloarcula hispanica ATCC33960 with a production of 30 mg L−1 when grown in AS‐168 medium, which mainly composed of mannose and galactose with a small amount of glucose in a molar ratio of 55.9 : 43.2 : 0.9.
Yang Lü +6 more
wiley +1 more source
A Manual Curation Strategy to Improve Genome Annotation: Application to a Set of Haloarchael Genomes
Genome annotation errors are a persistent problem that impede research in the biosciences. A manual curation effort is described that attempts to produce high-quality genome annotations for a set of haloarchaeal genomes (Halobacterium salinarum and Hbt ...
Friedhelm Pfeiffer, Dieter Oesterhelt
doaj +1 more source
Recent studies on archaeal diversity in few salterns have revealed heterogeneity between sites and unique structures of separate places that hinder drawing of generalized conclusions. Investigations on the archaeal community composition in P18, the biggest crystallizer pond in Pomorie salterns (PS) (34% salinity), demonstrated unusually high number of ...
Margarita Kambourova +5 more
wiley +1 more source
Haloquadratum walsbyi gen. nov., sp. nov., the square haloarchaeon of Walsby, isolated from saltern crystallizers in Australia and Spain [PDF]
Strains C23T and HBSQ001 were isolated from solar salterns and are novel square-shaped, aerobic, extremely halophilic members of the domain Archaea and family Halobacteriaceae. Cells stained Gram-negative and grew optimally in media containing 18 % salts at around neutral pH. Mg2+ is not required.
Burns, David G. +8 more
openaire +5 more sources

