The Thermoproteota are prokaryotes that have been classified as a phylum of the domain Archaea. [2][3][4] Initially, the Thermoproteota were thought to be sulfur-dependent extremophiles but recent studies have identified characteristic Thermoproteota environmental rRNA indicating the organisms may be the most abundant archaea in the marine envir...

The Crenarchaeota is one of the most abundant archaeal phyla in terrestrial environments, with a mean relative abundance of 0.5% of total prokaryotic phyla detected in terrestrial soils. They are widespread across soil samples with an occupancy of around 88%.

Uncultivated organisms in the subdivision Crenarchaeota are postulated to be the most abundant ammonia-oxidizing organisms in soils and to account for a large proportion (roughly 20 percent) of the microorganisms present in the picoplankton in the world’s oceans.

Crenarchaeota: well-characterized archaeal phylum first described by Woese [3], comprising mostly (acido)thermophilic anaerobes, although some aerobic (Sulfolobales) and micro-aerophilic (e.g. Pyrobaculum aerophilum) lineages exist.

Crenarchaeota. A phylum of the Archaea, all cultured members of which are thermophilic or hyperthermophilic organisms, some of which have the ability to grow at up to 113 °C. Euryarchaeota

2021年11月26日 · Crenarchaeota comprises both hyperthermophilic and cold-dwelling prokaryotes. The hyperthermophilic species of Crenarchaeota tend to cluster closely together and occupy short branches on the 16S rRNA gene phylogenetic tree.

2024年11月23日 · The Crenarchaeota are Archaea that have been classified as either a phylum of the Archaea kingdom, or in a kingdom of its own. Archaea exist in a broad range of habitats, and as a major part of global ecosystems, they may contribute up to 20% of earth’s biomass.

Recently, the first genome sequence of a mesophilic crenarchaeota, Cenarchaeum symbiosum, was completed. This mesophilic 'crenarchaeon' was included in archaeal phylogenies that are based on the...

2008年5月23日 · Here, we studied the cell cycle characteristics of hyperthermophilic Crenarchaeota belonging to the orders Desulfurococcales (Aeropyrum pernix), Thermoproteales (Pyrobaculum aerophilum and Pyrobaculum calidifontis), and Sulfolobales (Acidianus hospitalis and Sulfolobus tokodaii).

2005年9月22日 · Here we report the isolation of a marine crenarchaeote that grows chemolithoautotrophically by aerobically oxidizing ammonia to nitrite—the first observation of nitrification in the Archaea.