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Bacteria MeSH Descriptor Data 2025


MeSH Heading
Bacteria
Tree Number(s)
B03
Unique ID
D001419
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D001419
Annotation
general; prefer specifics; relation to bacterial disease: Manual 22.12-22.16; presence of bacteria in organs vs infection: Manual 22.11; note many precoordinated bacterial - terms (BACTERIAL PROTEINS; ANTIBODIES, BACTERIAL; etc); "coliform bacteria" = COLIFORM BACILLI see ENTEROBACTERIACEAE; presence of bacteria in blood = BACTEREMIA: see note there
Scope Note
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.
Entry Version
BACT
Entry Term(s)
Eubacteria
Registry Numbers
txid2
See Also
Fimbriae, Bacterial
Pili, Sex
Public MeSH Note
1963
History Note
1963
Entry Combination
physiology:Bacterial Physiological Phenomena
Date Established
1963/01/01
Date of Entry
1999/01/01
Revision Date
2020/08/13
Bacteria Preferred
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