نتایج جستجو برای: hypersaline environments
تعداد نتایج: 190472 فیلتر نتایج به سال:
We describe the microbiota of two hypersaline saltern ponds, one of intermediate salinity (19%) and a NaCl saturated crystallizer pond (37%) using pyrosequencing. The analyses of these metagenomes (nearly 784 Mb) reaffirmed the vast dominance of Haloquadratum walsbyi but also revealed novel, abundant and previously unsuspected microbial groups. We describe for the first time, a group of low GC ...
Background and Objective: Acute bronchiolitis is one of the most common reasons for inflammation, small airways obstruction, and lower respiratory tract infection in infancy. Owing that there has been no study on the efficacy of hypersaline 3% in the treatment of acute bronchiolitis in Iran, the present study was undertaken to deal with this issue. Materials and Methods: This double-blinded ...
Abstract The Urmia Lake National Park (NW Iran) represents a unique ecosystem owing to special ecological conditions prevailing the region. The Urmia Lake National Park comprises a range of normal to extreme environments, with variable range of salinity between 120-300 g/L. The present study was aimed to characterize ascomycetous yeast mycobiota inhabiting hypersaline soils in this region. Soi...
The fossil remains of euryhaline organisms in the Mesozoic±Cenozoic, non-marine sedimentary records of eastern China may have resulted from either marine transgressions or inland hypersaline lacustrine environments. Paleontological and organic geochemical results of this study have provided new evidence for marine transgressional events in the gigantic freshwater lake Songliao during the late C...
It is widely accepted that biodiversity is lower in more extreme environments. In this study, we sought to determine whether this trend, well documented for macroorganisms, also holds at the microbial level for bacteria. We used denaturing gradient gel electrophoresis (DGGE) with phylum-specific primers to quantify the taxon richness (i.e., the DGGE band numbers) of the bacterioplankton communi...
Acetohalobium arabaticum Zhilina and Zavarzin 1990 is of special interest because of its physiology and its participation in the anaerobic C(1)-trophic chain in hypersaline environments. This is the first completed genome sequence of the family Halobacteroidaceae and only the second genome sequence in the order Halanaerobiales. The 2,469,596 bp long genome with its 2,353 protein-coding and 90 R...
Euryarchaea from the genus Halorhabdus have been found in hypersaline habitats worldwide, yet are represented by only two isolates: Halorhabdus utahensis AX-2(T) from the shallow Great Salt Lake of Utah, and Halorhabdus tiamatea SARL4B(T) from the Shaban deep-sea hypersaline anoxic lake (DHAL) in the Red Sea. We sequenced the H. tiamatea genome to elucidate its niche adaptations. Among sequence...
A curious fusion between chlorite dismutase-like and antibiotic biosynthesis monooxygenase-like domains within a single open reading frame has been revealed by both sequence homology and structural modeling in Haloferax volcanii PitA and its homologues in other halophilic archaea. While this fusion may reflect an environmental adaptation to life in hypersaline environments and hence one specifi...
Lonar Lake is a hypersaline and hyperalkaline soda lake and the only meteorite impact crater in the world situated in basalt rocks. Although culture-dependent studies have been reported, a comprehensive understanding of microbial community composition and structure in Lonar Lake remains elusive. In the present study, microbial community structure associated with Lonar Lake sediment and water sa...
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