Results 41 to 50 of about 77,666 (195)

Uncovering the temporal dynamics and regulatory networks of thermal stress response in a hyperthermophile using transcriptomics and proteomics

open access: yesmBio, 2023
Facing rapid fluctuations in their natural environment, extremophiles, like the hyperthermophilic archaeon Pyrococcus furiosus, exhibit remarkable adaptability to extreme conditions.
Felix Grünberger   +9 more
doaj   +1 more source

Archaea-based Microbial Fuel Cell Operating at High Ionic Strength Conditions [PDF]

open access: yesarXiv, 2011
In this work two archaea microorganisms (Haloferax volcanii and Natrialba magadii) used as biocatalyst at a microbial fuel cell (MFC) anode were evaluated. Both archaea are able to grow at high salt concentrations. By increasing the media conductivity, the internal resistance was diminished, improving the MFCs performance.
arxiv  

Systematic identification of gene families for use as markers for phylogenetic and phylogeny- driven ecological studies of bacteria and archaea and their major subgroups [PDF]

open access: yes, 2013
With the astonishing rate that the genomic and metagenomic sequence data sets are accumulating, there are many reasons to constrain the data analyses. One approach to such constrained analyses is to focus on select subsets of gene families that are particularly well suited for the tasks at hand.
arxiv   +1 more source

Quantitative analysis of amino acid excretion by Methanothermobacter marburgensis under N2-fixing conditions

open access: yesScientific Reports
Methanogenic archaea (methanogens) possess fascinating metabolic characteristics, such as the ability to fix molecular nitrogen (N2). Methanogens are of biotechnological importance due to the ability to produce methane (CH4) from molecular hydrogen (H2 ...
Barbara Reischl   +5 more
doaj   +1 more source

Candidatus Nitrosocaldus cavascurensis, an Ammonia Oxidizing, Extremely Thermophilic Archaeon with a Highly Mobile Genome

open access: yesFrontiers in Microbiology, 2018
Ammonia oxidizing archaea (AOA) of the phylum Thaumarchaeota are widespread in moderate environments but their occurrence and activity has also been demonstrated in hot springs. Here we present the first enrichment of a thermophilic representative with a
Sophie S. Abby   +8 more
doaj   +1 more source

Introns Restructure tRNA Genes of Archaea [PDF]

open access: yesarXiv, 2005
This paper has been withdrawn by the author.
arxiv  

Two membrane-bound transcription factors regulate expression of various type-IV-pili surface structures in Sulfolobus acidocaldarius [PDF]

open access: yesPeerJ, 2019
In Archaea and Bacteria, gene expression is tightly regulated in response to environmental stimuli. In the thermoacidophilic crenarchaeon Sulfolobus acidocaldarius nutrient limitation induces expression of the archaellum, the archaeal motility structure.
Lisa Franziska Bischof   +2 more
doaj   +2 more sources

Size-fractionated microbiome observed during an eight-month long sampling in Jiaozhou Bay and the Yellow Sea

open access: yesScientific Data, 2022
Measurement(s) temperature of seawater • salinity of seawater • chlorophyll a • particulate organic carbon (POC) of seawater • dissolved organic carbon (DOC) of seawater • total nitrogen (TN) of seawater • total nitrate of seawater • nitrite of seawater •
Jianchang Tao   +7 more
doaj   +1 more source

Comparable system-level organization of Archaea and Eukaryotes [PDF]

open access: yesNature Genetics vol. 29 54-56 (2001), 2001
A central and long-standing issue in evolutionary theory is the origin of the biological variation upon which natural selection acts1. Some hypotheses suggest that evolutionary change represents an adaptation to the surrounding environment within the constraints of an organism's innate characteristics.
arxiv  

Identification of novel components of the Ced and Ups systems in Saccharolobus islandicus REY15A

open access: yesmLife
In Sulfolobales cells, transcription of the Ups (UV‐inducible pili of Sulfolobus) and Ced (Crenarchaeal system for exchange of DNA) genes is highly induced by DNA damage, and the two systems play key roles in pili‐mediated cell aggregation and ...
Pengju Wu   +6 more
doaj   +1 more source

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