Alphaproteobacteria
| Definition: |
A class in the phylum PROTEOBACTERIA comprised mostly of two major phenotypes: purple non-sulfur bacteria and aerobic bacteriochlorophyll-containing bacteria. |
| Notes: |
DF: ALPHAPROTEOBACT |
Alphaproteobacteria Categories.
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Beijerinckiaceae - A family of aerobic gram-negative rods that are nitrogen fixers. They are highly viscous, and appear as a semitransparent slime in giant colonies. |
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Holosporaceae - A family of bacteria comprised of endosymbionts of PROTOZOA. |
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Hyphomicrobiaceae - A family in the order Rhizobiales, class ALPHAPROTEOBACTERIA comprised of many genera of budding or appendaged bacteria. |
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Methylocystaceae - A family of gram-negative methanotrophs in the order Rhizobiales, distantly related to the nitrogen-fixing and phototrophic bacteria. |
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Rhodobacteraceae - A family in the order Rhodobacterales, class ALPHAPROTEOBACTERIA. |
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Rhodospirillales - An order of photosynthetic bacteria representing a physiological community of predominantly aquatic bacteria. |
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Sphingomonadaceae - A family of gram-negative, asporogenous rods or ovoid cells, aerobic or facultative anaerobic chemoorganotrophs. They are commonly isolated from SOIL, activated sludge, or marine environments. |
Alphaproteobacteria Definitions and Terms
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