Gourt > Science > Biology > Flora and Fauna > Monera > Bacteria (10)
Bacteria (singular: bacterium) are a major group of living organisms. The term "bacteria" has variously applied to all prokaryotes or to a major group of them, otherwise called the eubacteria, depending on ideas about their relationships. Here, bacteria is used specifically to refer to the eubacteria. Another major group of bacteria (used in the broadest, non-taxonomic sense) are the Archaea. The study of bacteria is known as bacteriology, a subfield of microbiology.
Bacteria are the most abundant of all organisms. They are ubiquitous in soil, water, and as symbionts of other organisms. Many pathogens are bacteria. Most are minute, usually only 0.5-5.0 μm in their longest dimension, although giant bacteria like Thiomargarita namibiensis and Epulopiscium fishelsoni may grow past 0.5 mm in size. They generally have cell walls, like plant and fungal cells, but bacterial cell walls are normally made out of peptidoglycan instead of cellulose (as in plants) or chitin (as in fungi), and are not homologous with eukaryotic cell walls. Many move around using flagella, which are different in structure from the flagella of other groups.
History
The first bacteria were observed by Anton van Leeuwenhoek in 1674 using a single-lens microscope of his own design. The name bacterium was introduced much later, by Ehrenberg in 1828, derived from the Greek word βακτηριον meaning "small stick". Because of the difficulty in describing individual bacteria and the importance of their discovery to fields such as medicine, biochemistry, and geochemistry, the history of bacteriology is generally described as the history of microbiology. More on [ Bacteria ]
Bacterial Infections
Bacteria :: Prokaryotic
Microbiology :: Biology
RT @Discovery_News: Even bacteria get lonely. http://ow.ly/Nwhe
gransome (Gary Ransome) Sun, 20 Dec 2009 10:48:29 -0000
RT @Discovery_News: Even bacteria get lonely. http://ow.ly/Nwhe
RT @taeheckard: RT @OMGFacts: There are more bacteria in your mouth than there are people in the world. #omgfacts
uniquewoods69 (Uniquewoods69) Sun, 20 Dec 2009 10:47:16 -0000
RT @taeheckard: RT @OMGFacts: There are more bacteria in your mouth than there are people in the world. #omgfacts
RT @comedybot: Support bacteria - they're the only culture some people have. -Steven Wright âº
KaraboKgoleng (Karabo Kgoleng) Sun, 20 Dec 2009 10:44:14 -0000
RT @comedybot: Support bacteria - they're the only culture some people have. -Steven Wright ☺
RT @inspiredwriters Support bacteria. They're the only culture some people have.
ajbarnett (Anthony J. Barnett) Sun, 20 Dec 2009 10:39:46 -0000
RT @inspiredwriters Support bacteria. They're the only culture some people have.
Bacteria Assemble in Mario Form to Battle Bowser Virus [Science] http://www.xuropa.com/news.php?newsart_id=117702&twit=1
Xuropa (Xuropa) Sun, 20 Dec 2009 10:39:02 -0000
Bacteria Assemble in Mario Form to Battle Bowser Virus [Science] http://www.xuropa.com/news.php?newsart_id=117702&twit=1
Bacteria locked in solitary confinement know they are locked up, talk to themselves, and try to break free of their imprisonment.
byoutekismile (ç¬çäº-Emilia-) Sun, 20 Dec 2009 10:36:20 -0000
Bacteria locked in solitary confinement know they are locked up, talk to themselves, and try to break free of their imprisonment.
Azotobacter.org - Information regarding the on-going sequencing and annotation of the Azotobacter vinelandii genome.
Meta Description: [ The purpose of these pages is to provide the most current information regarding the on-going sequencing and annotation of the Azotobacter vinelandii genome. Technical questions concerning the project can be addressed to Paul Rudnick the project coordinator, working at the NCI-Frederick, or Nirav ... ]
Bacterial Nomenclature - A place to find out the most current name for a bacterium.
Meta Description: [ DSMZ, the German Resource Centre for Biological Material. ]
Introduction to the Bacteria - Topics include morphology, systematics, life history and ecology, and the fossil record.
List of Bacterial Names with Standing in Nomenclature - Alphabetically and chronologically arranged lists of taxa, with additional information on bacterial taxonomy.
Meta Description: [ LPSN is a database of bacterial names and prokaryotes names. It includes a comprehensive classification and taxonomy ]
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