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archaea : microorganisms of a domain including especially methane-producing forms, some red halophilic forms, and others of harsh hot acidic environments (as a hot spring) (archaea, 2015) [1]blank.gifWebster | OneLook | Visuwords
Archaea are a group of single-celled microorganisms. A single individual or species from this domain is called an archaeon (sometimes spelled "archeon"). They have no cell nucleus or any other membrane-bound organelles within their cells. In the past they had been classed with bacteria as prokaryotes (or Kingdom Monera) and named archaebacteria, but this classification is regarded as outdated. In fact, the Archaea have an independent evolutionary history and show many differences in their biochemistry from other forms of life, and so they are now classified as a separate domain in the three-domain system. In this system, the phylogenetically distinct branches of evolutionary descent are the Archaea, Bacteria and Eukaryota. (Archaea, 2015) [2]blank.gif Wikipedia

Spotlight


Evolution Deep Sea Vents and Life's Origins


Under the Sea, a Missing Link in the Evolution of Complex Cells (Carl Zimmer, New York Times)
Newly found microbe is close relative of complex life (Paul Rincon, BBC News)
Deep-sea microbes called missing link for complex cellular life (Will Dunham, Reuters)

Evolution: Steps on the road to eukaryotes ( T. Martin Embley & Tom A. Williams)

Journey to the Centre of Earth P3
(Vast Subsurface Bacteria, Formation of Caves)



Secrets of the deep: How the mass of organisms living in undersea volcanoes and rocks could out-weigh all of the animals on the surface (Eddie Wrenn, Daily Mail Online)
Researchers find evidence of 'incredible bio-mass' around deep-sea vents.

The Discovery of Archaea, the 'Third Branch of Life', and Its Impacts

First detailed report defines limits of methane-exhaling microbial life in an undersea volcano (Phys.org)

Researchers Identify Mysterious Life Forms in the Extreme Deep Sea (Scripps News)

Microbe found that can use arsenic as nutrient (Randolph E. Schmid, AP Science Writer)

Related


blank.gifmicroorganismblank.gif virus blank.gif archaea blank.gif prokaryote (bacteria) blank.gif mitochondria, chlorophlast
blank.gifeukaryote blank.gifplant algae blank.gifnot plant or animal protist, fungi, lichen blank.gifanimal protozoa, amoeba

blank.gifmicroscope blank.gif Linnaean system blank.gifmorphologyblank.gifanatomyblank.gifphysiology blank.gif cellblank.gifgeneblank.gifevolutionblank.giffossil

Resources


Archaea


Bacteria | Biology | Bacteriology


Intimate Strangers: Unseen Life on Earth 4 Part Video Series

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Archaea - Google News
  • This Week in PNAS - GenomeWeb Yesterday
    This Week in PNASGenomeWebIn the early, online edition of the Proceedings of the National Academy of Sciences, researchers from UK, Hungary, Sweden, and France report on evolutionary patterns in archaea. For the analysis, the team brought together information on more than 3,200 ...
  • TCMH purchases incubator with grant funding - Houston Herald Yesterday
    Houston HeraldTCMH purchases incubator with grant fundingHouston HeraldThe new incubator in the Texas County Memorial Hospital laboratory looks like a fancy college dorm fridge. An unknowing visitor to the microbiology room in the lab would never know it has decreased turnaround times for laboratory cultures and improved ...and more »
  • Scientists Say: Mitochondrion - Science News for Students (blog) Monday
    Science News for Students (blog)Scientists Say: MitochondrionScience News for Students (blog)mitochondria (sing. mitochondrion ) Structure in all cells (except bacteria and archaea) that break down nutrients and convert them into a form of energy known as ATP. nutrient A vitamin, mineral, fat, carbohydrate or protein that a plant, animal or ...
  • Self-Mutating Microbes Discovered - Santa Barbara Independent May 1, 2017
    Santa Barbara IndependentSelf-Mutating Microbes DiscoveredSanta Barbara IndependentFive hundred times smaller than E. coli, Valentine explained, these archaea and bacteria had passed through traditional filters and had also split their genetic material in a way that previously made them “invisible” to standard scientific searches ...
  • Marine microorganisms difficult to grow in laboratory, hard to study - Science Daily Apr 29, 2017
    Marine microorganisms difficult to grow in laboratory, hard to studyScience DailyIn a April 27 article published in Current Biology, researchers from the Technion-Israel institute of Technology present new findings obtained in this way about viruses that attack microorganisms from one of the archaeal marine groups (Euryarchaeota).



Credit

Editor Mary E. Hopper
Contributor Neil R. Carlson


© Cosma creator mehopper editor mehopper revised 7/14/2016 v.1.5
  1. ^ archaea. (2015). In Merriam-Webster Online Dictionary (11th ed.). Retrieved June 21, 2015, from http://www.merriam-webster.com/dictionary/archaea
  2. ^ Archaea. (2015). In Wikipedia, The Free Encyclopedia. Retrieved June 21, 2015, from http://en.wikipedia.org/wiki/Archaea