Berkelbacteria (formerly ACD58) is a bacterial phylum with

candidate A candidate, or nominee, is the prospective recipient of an award or honor, or a person seeking or being considered for some kind of position; for example: * to be elected to an office — in this case a candidate selection procedure occurs. * t ...

status, meaning there are no cultured representatives for this group. It is part of the

Candidate Phyla Radiation The candidate phyla radiation (also referred to as CPR group) is a large evolutionary radiation of bacterial lineages whose members are mostly uncultivated and only known from metagenomics and single cell sequencing. They have been described as n ...

. Berkelbacteria was first reported in 2012, at which time it was classified as a divergent lineage of Parcubacteria (OD1) and referred to as ACD58. It was proposed as a phylum in 2014. Representatives of this phylum have been detected in a variety of environments, including a deep

thermokarst Thermokarst is a type of terrain characterised by very irregular surfaces of marshy hollows and small hummocks formed as ice-rich permafrost thaws. The land surface type occurs in Arctic areas, and on a smaller scale in mountainous areas such as ...

lake in the Sasapimakwananisikw River Valley (QC, Canada), an acetate-amended alluvial aquifer adjacent to the Colorado River (CO, USA), and marine sediments from the Peru Margin seafloor.

References

{{Bacteria classification, state=expanded Bacteria described in the 21st century Candidatus taxa Bacteria phyla