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Bacteria
Definition: One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.

Synonym(s): Eubacteria /

Narrow term(s):
   Atypical Bacterial Forms    Bacteroidetes    Chlorobi
   Chloroflexi    Cyanobacteria    Endospore-Forming Bacteria
   Fusobacteria    Gram-Negative Bacteria    Gram-Positive Bacteria
   Proteobacteria    Spirochaetales    Sulfur-Reducing Bacteria
   Bacteria, Aerobic    Bacteria, Anaerobic    Biofilms
   Blood-Borne Pathogens

See also:
Fimbriae, Bacterial  Pili, Sex  Microbiology 

MeSH 2010 © U.S. National Library of Medicine®.
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  Web resources for "Bacteria"
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= Site with HON description   -   = Site with a robot description
info: enter the site: (click below) domain of the site:  
view the robot description of the site Helicobacter pylori - Symptoms, Causes, Treatments - Better Medicinewww.wrongdiagnosis.com 14
view the HON description of the site HONcode - Antibiotics, Bacteria and (not) Viruseswww.drreddy.com 2
view the HON description of the site HONcode - Autism Treatment Optionswww.child-autism-parent-cafe.com  
view the HON description of the site HONcode - Foodborne Illnesses - National Digestive Diseases Information Clearinghouse www.digestive.niddk.nih.gov 5
view the HON description of the site HONcode - NEWSPathwww.pathoindia.com  
view the HON description of the site HONcode - Foodborne Illnesses - National Digestive Diseases Information Clearinghouse digestive.niddk.nih.gov 7
view the HON description of the site HONcode - Urinary Tract Infections in Adults - National Kidney and Urologic Diseases Information Clearinghouse www.niddk.nih.gov 6
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See also: - Microbiology
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  Medical image(s) for "Bacteria"
click below to enlargeProkaryotic structure
www.tpsd.org
Copyright © Prokaryotic structure
click below to enlargeBacteria Streptococcus pyogenes
upload.wikimedia.org
Bacteria Streptococcus pyogenes
Copyright © CDC Public Health Image Library
click below to enlargePhilogenetic Tree of Life
nai.arc.nasa.gov
Philogenetic Tree of Life
Copyright © Wikimedia
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  Medical News for "Bacteria"
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  Scientific articles from MEDLINE for "Bacteria"
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 Therapy:  by recall    by precision
 Diagnosis:  by recall    by precision
 Etiology:  by recall    by precision
 Prognosis:  by recall    by precision

Subheadings: chemistry / cytology / metabolism

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  Clinical Trials for "Bacteria"
ClinicalTrials.gov - Linking patients to medical research

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See also: - Microbiology
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See also: - Microbiology

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Subheadings: chemistry / cytology / metabolism


  Broader term(s):
      Organisms 

MeSH 2010 © U.S. National Library of Medicine®.

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