Flavobacterium marinum: Difference between revisions
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[[File:Flavobacterium marinum.png|thumb|right|Single cell isolates of Flavobacterium marinum; bar 0.5µm]] | [[File:Flavobacterium marinum.png|thumb|right|Single cell isolates of Flavobacterium marinum; bar 0.5µm]] | ||
Flavobacterium marinum has a gram negative, rod shaped morphology. Cells are often found in singlets or pairs, and are not capable of gliding motility. Each cell is approximately 0.5µm in diameter and 1.5µm in length | Flavobacterium marinum has a gram negative, rod shaped morphology. Cells are often found in singlets or pairs, and are not capable of gliding motility, endosporulation, or capsule formation. Each cell is approximately 0.5µm in diameter and 1.5µm in length. | ||
[[File:Flavobacterium marinum ultrathin.png|thumb|right|Thin section of F. marinum cell]] | [[File:Flavobacterium marinum ultrathin.png|thumb|right|Thin section of F. marinum cell]] | ||
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While the optimum temperature for growth is 35°C, Flavobacterium marinum is tolerant of temperatures between 15°C and 45°C. The optimal pH for growth is close to neutral conditions | While the optimum temperature for growth is 35°C, Flavobacterium marinum is tolerant of temperatures between 15°C and 45°C. The optimal pH for growth is close to neutral conditions; however, F. marinum has been cultured between pH values of 5.5-8.5. This particular strain of Flavobacterium prefers saline environments, but is cultivable in freshwater systems. | ||
===Colonial Morphology=== | ===Colonial Morphology=== |
Revision as of 20:12, 21 April 2013
Flavobacterium marinum
Ecology
The genus Flavobacterium is found in a variety of environments, including soil, fresh and saline acquatic systems, and arctic. The microbe Flavobacterium marinum was first isolated in a saltwater sample from the Indian Ocean.
Cell Structure and Metabolism
Single Cell Morphology
Flavobacterium marinum has a gram negative, rod shaped morphology. Cells are often found in singlets or pairs, and are not capable of gliding motility, endosporulation, or capsule formation. Each cell is approximately 0.5µm in diameter and 1.5µm in length.
While the optimum temperature for growth is 35°C, Flavobacterium marinum is tolerant of temperatures between 15°C and 45°C. The optimal pH for growth is close to neutral conditions; however, F. marinum has been cultured between pH values of 5.5-8.5. This particular strain of Flavobacterium prefers saline environments, but is cultivable in freshwater systems.
Colonial Morphology
Aggregate colonies of Flavobacterium marinum appear as yellow, semiopaque structures, with a diameter measuring 1.5mm-2.0mm.
Metabolic Activity
F. marinum has been cultured successfully on LB (Luria-Bertani) broth, trypticase soy agar, as well as marine and nutrient agars.
Phylogeny
Genome Structure
References
Authors
Original page and amendments were created by Andrew Fischer and Torrin McDonald, both students in Prof. Ned Walker's Microbial Ecology course at Michigan State University.