The Types of Spirilla Bacteria

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Spirilla are a group of bacteria characterized by their spiral or corkscrew type shape. Spirilla are gram-negative aerobic heterotrophic bacteria. They usually prefer an aquatic environment where the oxygen level is below that in the atmosphere. They have a rigid cell wall and use flagella (a long, lashlike appendage) on each end to move.

Rhodospirillum

  • Rhodospirillum are purple non-sulfur bacteria that generate cellular energy by photosynthesis. Examples of Rhodospirillum include Rhodospirillum centenum, Rhodospirillum fulvum, Rhodospirillum molischianum, Rhodospirillum photometricum, Rhodospirillum rubrum, Rhodospirillum salexigens, Rhodospirillum salinarum, Rhodospirillum sodomense, Rhodospirillum sulfurexigens and Rhodospirillum tenue.

Oceanospirillum

  • Oceanospirillum live in saltwater habitats with sodium chloride (salt) concentrations as high as 9 percent. Examples of Oceanospirillum include Oceanospirillum linum, Oceanospirillum beijerinckii, Oceanospirillum pelagicum, Oceanospirillum commune, Oceanospirillum hiroshimense, Oceanospirillum jannaschii, Oceanospirillum japonicum, Oceanospirillum kriegii, Oceanospirillum maris, Oceanospirillum minutulum, Oceanospirillum multiglobuliferum, Oceanospirillum pusillum and Oceanospirillum vagum.

Magnetospirillum

  • Magnetospirillium move in relation to the earth's magnetic field. Examples of Magnetospirillum include Magnetospirillum gryphiswaldense and Magnetospirillum magnetotacticum.

Azospirillum

  • Azospirillum fixes nitrogen in symbiosis with some tropical grasses and grain crops. Examples of Azospirillum include Azospirillum amazonense, Azospirillum brasilense, Azospirillum doebereinerae, Azospirillum halopraeferens, Azospirillum irakense, Azospirillum largimobile, Azospirillum lipoferum and Azospirillum melinis.

Phaeospirillum

  • Examples of Phaeospirillum include Phaeospirillum fulvum, Phaeospirillum molischianum and Phaeospirillum chandramohanii.

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