Results 61 to 70 of about 43,718 (188)

Halophilic Archaea: Life with Desiccation, Radiation and Oligotrophy over Geological Times [PDF]

open access: yesLife, 2015
Halophilic archaebacteria (Haloarchaea) can survive extreme desiccation, starvation and radiation, sometimes apparently for millions of years. Several of the strategies that are involved appear specific for Haloarchaea (for example, the formation of halomucin, survival in fluid inclusions of halite), and some are known from other prokaryotes (dwarfing ...
Stan-Lotter, Helga, Fendrihan, Sergiu
openaire   +3 more sources

Diurnally entrained anticipatory behavior in archaea. [PDF]

open access: yesPLoS ONE, 2009
By sensing changes in one or few environmental factors biological systems can anticipate future changes in multiple factors over a wide range of time scales (daily to seasonal).
Kenia Whitehead   +4 more
doaj   +1 more source

Molecular‐Level Modulation of Proton Transport via Electron‐Proton Coupling in Bio‐p‐n Junctions

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.
We developed a pH‐sensing device capable of operating in biological environments. A biohybrid p–n junction was constructed using bacteriorhodopsin (bR) and the photoconductive polymer poly(3‐hexylthiophene) (P3HT). Under light illumination, the photocurrent exhibits distinct transitions across various pH gradients, demonstrating the system's high ...
Chen Song   +7 more
wiley   +1 more source

The archaeal protein SepF is essential for cell division in Haloferax volcanii

open access: yesNature Communications, 2021
In most bacteria, cell division depends on tubulin homolog FtsZ and other proteins, such as SepF. Cell division in many archaea also depends on FtsZ. Here, Nußbaum et al.
Phillip Nußbaum   +4 more
doaj   +1 more source

Microeukaryotic Diversity and Habitat Structuring in a Desiccating Alkaline Maar Lake (Central Mexico)

open access: yesJournal of Eukaryotic Microbiology, Volume 73, Issue 6, November/December 2026.
ABSTRACT Microeukaryotes are important components of microbial food webs in saline and alkaline lakes, yet their diversity and distribution across distinct microhabitats remain poorly understood. We characterized microeukaryotic communities associated with microbialites, microbial mats, hypersaline waters, and sediments in the desiccating maar lake ...
Barbara Moguel   +5 more
wiley   +1 more source

Cell Surface Glycosylation Is Required for Efficient Mating of Haloferax volcanii

open access: yesFrontiers in Microbiology, 2017
Halophilic archaea use a fusion-based mating system for lateral gene transfer across cells, yet the molecular mechanisms involved remain unknown. Previous work implied that cell fusion involves cell–cell recognition since fusion occurs more efficiently ...
Yarden Shalev   +4 more
doaj   +1 more source

Landscape Mapping Reveals Depth‐Dependent Regional Heterogeneity in Soil Microbial Diversity

open access: yesDiversity and Distributions, Volume 32, Issue 10, October 2026.
ABSTRACT Aim To identify microbial hotspots and investigate the spatial distribution and assembly mechanisms of soil bacterial and archaeal communities across a coastal ecosystem, and to assess implications for biodiversity conservation and sustainable land management. Location Yellow River Delta, China (YRD, ~13,680 km2 coastal plain). Methods A total
Xiongfeng Du   +18 more
wiley   +1 more source

Molecular ecology of extremely halophilic Archaea and Bacteria [PDF]

open access: yesFEMS Microbiology Ecology, 2002
Abstract Water bodies with NaCl concentrations approaching saturation are often populated by dense microbial communities. Red halophilic Archaea of the family Halobacteriaceae dominate in such environments. The application of molecular biological techniques, in particular the use of approaches based on the characterization of ribosomal RNA sequences ...
openaire   +2 more sources

Isocitrate lyase activity in halophilic archaea [PDF]

open access: yesFEMS Microbiology Letters, 1995
Eight species of halophilic Archaea were tested for the presence of isocitrate lyase activity. High activities (up to 100 nmol min−1 mg protein−1) were detected in Haloferax mediterranei and Haloferax volcanii when grown in medium containing acetate as the principal carbon source. Little activity was found in representatives of the genera Halobacterium
Aharon Oren, Peter Gurevich
openaire   +1 more source

Diversity of UV Resistance in the Halophilic Archaea [PDF]

open access: yes, 2018
Members of halophilic archaea, like Halobacterium, are remarkably resistant to ultraviolet light (UV). However, it is unclear to what extent other halophilic archaea share this phenotype, despite the common generalization that halophilic archaea are UV ...
Hamawi, Rafael
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