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Mesh term Bacteria

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Organisms Category

Description

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.


Browse to child terms:
Acidobacteria
Agricultural Inoculants
Atypical Bacterial Forms
Bacteria, Aerobic
Bacteria, Anaerobic
Bacteria, Thermoduric
Bacteroidetes
Chlorobi
Chloroflexi
Cyanobacteria
Endospore-Forming Bacteria
Firmicutes
Fusobacteria
Gram-Negative Bacteria
Gram-Positive Bacteria
Nitrogen-Fixing Bacteria
Proteobacteria
Spirochaetales
Sulfur-Reducing Bacteria


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jenkins-FCD Prod-486 e3098984f26de787f5ecab75090d0a28e7f4f7c0