crenarchaeota

(noun)

Archae that have been recently identified to be present in marine environments where they responsible for nitrification.

Related Terms

Examples of crenarchaeota in the following topics:

  • Nonthermophilic Crenarchaeota

    • Nonthermophilic Crenarchaeota can be extreme halophiles living in highly salty environments.
    • Crenarchaeota can be extreme halophiles, and include organisms living in highly salty environments (for example, halococcus).
    • Discuss the characteristics of nonthermophilic crenarchaeota, specifically Halococcus, that allow it to survive in extreme environments

  • Habitats and Energy Metabolism of Crenarchaeota

    • Crenarchaeota exist in a wide range of habitats and exhibit a great variety of chemical reactions in their metabolism.
    • The Crenarchaeota are Archaea that have been classified as either a phylum of the Archaea kingdom, or in a kingdom of its own.
    • The Crenarchaeota also use the reverse Krebs cycle while the Euryarchaeota also use the reductive acetyl-CoA pathway.
    • Some marine Crenarchaeota are capable of nitrification, suggesting these organisms may affect the oceanic nitrogen cycle, although these oceanic Crenarchaeota may also use other sources of energy.

  • Psychrophilic Crenarchaeota

    • The Crenarchaeota (Greek for "spring old quality") (also known as Crenarchaea or eocytes) are Archaea that have been classified as either a phylum of the Archaea kingdom or a kingdom of its own.
    • Initially, the Crenarchaeota were thought to be sulfur-dependent extremophiles but recent studies have identified characteristic Crenarchaeota environmental rRNA indicating the organism may be the most abundant archaea in the marine environment.

  • Shared Features of Archaea and Eukaryotes

    • Complicating factors include claims that the relationship between eukaryotes and the archaeal phylum Crenarchaeota is closer than the relationship between the Euryarchaeota and the phylum Crenarchaeota, and the presence of archaean-like genes in certain bacteria, such as Thermotoga maritima, from horizontal gene transfer.

  • Energy Conservation and Autotrophy in Archaea

    • In addition, the Crenarchaeota use the reverse Krebs cycle while the Euryarchaeota use the reductive acetyl-CoA pathway.

  • Viruses of Archaea

    • Species of the order Ligamenvirales and the families Ampullaviridae, Bicaudaviridae, Clavaviridae, Fuselloviridae, Globuloviridae, and Guttaviridae infect hyperthermophilic archaea species of the Crenarchaeota.