archaean

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  • adj

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of or relating to the earliest known rocks formed during the Precambrian Eon

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References in periodicals archive ?
Prokaryotes are unicellular organisms, including bacteria and archaea, that don't encase their DNA in a nucleus and do not contain membrane-bound organelles.
Particularly surprising was the discovery that fungi were metabolically active players contributing to the subseafloor ecosystem, along with bacteria and archaea.
Cabello P, Dolores Roldan M, Moreno-Vivian C (2004) Nitrate reduction and the nitrogen cycle in archaea.
In all samples, the absolute abundance of total methanogenic archaea was in the magnitude of [10.
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Scientists from the University of Colorado Boulder have discovered that microbes such as bacteria, fungi and archaea have the capability to grow in extreme climate.
1990) system, prokaryotes are divided into two different domains, Archaea and Eubacteria, so kingdom Monera no longer exists in that form (Campbell & Reece, 2008).
Actinidic archaea has been described in human systems from our laboratory and function as cellular endosymbionts regulating multiple cellular functions.
Previous research has suggested that macropod microbiomes might possess unique protozoa, bacteria and archaea (single-celled organisms in the Archaea taxonomic domain).
Easy-to-follow directions and cookbook recipes characterize this compendium of some 7,000 alphabetically arranged formulations (1,500 new to this edition) describing how to use both classic and modern media for the identification, cultivation, and maintenance of bacteria, archaea, and fungi.
Currently there is little information on the relationship between Archaea and chronic periodontitis.
Plankton consist of any drifting organisms (animals, plants, archaea, or bacteria) that inhabit the pelagic zone of oceans, seas, or bodies of fresh water.
Later, however, comprehensive sequence comparisons of the nucleic acids and proteins of these microorganisms showed fundamental differences to bacteria, so that evolutionary biologists reclassified the five kingdoms of life to three domains: archaea, single-celled organisms lacking nuclei; bacteria, which also lack nuclei; and eukarya, organisms with nuclei (single-celled protists, single- and multi-celled algae, single- and multi-celled fungi, plants, animals, and humans).
These include unicellular green algae of the genus Dunaliella, which is the sole primary producers in the lake, and a variety of heterotrophic prokaryotes, aerobes, anaerobes as well as Archaea [4, 5].
Greek patos, a beaten path, and Archaea, the type genus of Archaeidae.