Results 41 to 50 of about 77,666 (195)
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]
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]
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
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
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]
This paper has been withdrawn by the author.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]
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
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]
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
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