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Definition
The monohyletic group that includes all known living organisms. Characterized by a nucleic-acid based genetic system (DNA or RNA), metabolism, and cellular structure. Some parasitic forms, such as viruses, have secondarily lost some of these features and rely on the cellular environment of their host. |
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Definition
EUBACTERIA Unicellular organisms lacking a nucleus, possessing distinctive ribosomes and initiator tRNA, and generally containing peptidoglycan in the cell wall. Different bacterial groups are distinguished primarily on nucleotide sequence data. |
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Term
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Definition
Motile, Gram-negative bacteria with a helically coiled structure and characterized by axial filaments |
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Definition
A group of very small Gram-negative bacteria; they live as intracellular parasites of other organisms. |
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Term
| [39] High-GC Gram-Positive (+) |
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Definition
ACTINOBACTERIA Gram-positive bacteria with a relatively high G+C/A+T ratio of their DNA, with a filamentous growth habit
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Definition
| A group of unicellular, colonial, or filamentous bacteria that conduct photosynthesis using chlorophyll a. |
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Term
| [41] Low-GC Gram-Positive (+) |
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Definition
FIRMICUTES
A diverse group of bacteria [2] with a relatively low G+C/A+T ratio of their DNA, often but not always Gram-positive, some producing endospores. |
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Term
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Definition
| A large and extremely diverse group of Gram-negative bacteria that includes many pathogens, nitrogen fixers, and photosynthesizers. Includes the alpha, beta, gamma, delta, and epsilon proteobacteria. |
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