Results 41 to 50 of about 2,275 (190)

The effects of extremes of pH on the growth and transcriptomic profiles of three haloarchaea [v1; ref status: indexed, http://f1000r.es/3y1]

open access: yesF1000Research, 2014
The halophilic archaea (haloarchaea) live in saline environments which are found across the globe.  In addition to salinity, these niches can be quite dynamic and experience extreme conditions such as low oxygen content, radiation (gamma and UV), pH and ...
Aida Moran-Reyna, James A. Coker
doaj   +1 more source

Evolution of rhodopsin ion pumps in haloarchaea [PDF]

open access: yesBMC Evolutionary Biology, 2007
The type 1 (microbial) rhodopsins are a diverse group of photochemically reactive proteins that display a broad yet patchy distribution among the three domains of life. Recent work indicates that this pattern is likely the result of lateral gene transfer (LGT) of rhodopsin genes between major lineages, and even across domain boundaries.
Sharma, Adrian K.   +5 more
openaire   +4 more sources

Ancient origin of the divergent forms of leucyl-tRNA synthetases in the Halobacteriales

open access: yesBMC Evolutionary Biology, 2012
Background Horizontal gene transfer (HGT) has greatly impacted the genealogical history of many lineages, particularly for prokaryotes, with genes frequently moving in and out of a line of descent.
Andam Cheryl P   +3 more
doaj   +1 more source

Analysis of haloarchaeal twin-arginine translocase pathway reveals the diversity of the machineries

open access: yesHeliyon, 2019
The twin-arginine translocase (Tat) pathway transports folded proteins across the plasma membrane and plays a critical role in protein transport in haloarchaea.
Deepanjan Ghosh   +3 more
doaj   +1 more source

Sulfur Respiration in a Group of Facultatively Anaerobic Natronoarchaea Ubiquitous in Hypersaline Soda Lakes

open access: yesFrontiers in Microbiology, 2018
The ubiquity of strictly anaerobic sulfur-respiring haloarchaea in hypersaline systems with circumneutral pH has shaken a traditional concept of this group as predominantly aerobic heterotrophs.
Dimitry Y. Sorokin   +11 more
doaj   +1 more source

Antioxidant, Antimicrobial, and Bioactive Potential of Two New Haloarchaeal Strains Isolated from Odiel Salterns (Southwest Spain)

open access: yesBiology, 2020
The need to survive in extreme environments has furnished haloarchaea with a series of components specially adapted to work in such conditions. The possible application of these molecules in the pharmaceutical and industrial fields has received ...
Patricia Gómez-Villegas   +5 more
doaj   +1 more source

Characterization of bioplastics produced by haloarchaeon Haloarcula sp strain NRS20 using cost-effective carbon sources

open access: yesMaterials Research Express, 2021
As good models for developing techniques, Haloarchaea are using as cell factories to produce a considerable concentration of bioplastics, polyhydroxyalkanoate (PHA), polyhydroxybutyrate (PHB), and polyhydroxyvalerate (PHV). In this study, low-cost carbon
Nashwa Hagagy   +4 more
doaj   +1 more source

Amino acid substitutions in cold-adapted proteins from Halorubrum lacusprofundi, an extremely halophilic microbe from antarctica. [PDF]

open access: yesPLoS ONE, 2013
The halophilic Archaeon Halorubrum lacusprofundi, isolated from the perennially cold and hypersaline Deep Lake in Antarctica, was recently sequenced and compared to 12 Haloarchaea from temperate climates by comparative genomics.
Shiladitya Dassarma   +3 more
doaj   +1 more source

Genomic Analysis of Haloarchaea from Diverse Environments, including Permian Halite, Reveals Diversity of Ultraviolet Radiation Survival and DNA Photolyase Gene Variants

open access: yesMicroorganisms, 2023
Ultraviolet (UV) radiation responses of extremophilic and archaeal microorganisms are of interest from evolutionary, physiological, and astrobiological perspectives. Previous studies determined that the halophilic archaeon, Halobacterium sp. NRC-1, which
Sagorika Nag   +7 more
doaj   +1 more source

Haloarchaeal Carotenoids: Healthy Novel Compounds from Extreme Environments

open access: yesMarine Drugs, 2019
Haloarchaea are halophilic microorganisms belonging to the archaea domain that inhabit salty environments (mainly soils and water) all over the world. Most of the genera included in this group can produce carotenoids at significant concentrations (even ...
Micaela Giani   +3 more
doaj   +1 more source

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