Flavobacterium marinum

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Flavobacterium marinum


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 (49°39′18′′ E 37°47′22′′ S), collected at a depth of 800m.

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. Each cell is approximately 0.5µm in diameter and 1.5µm in length. The cells were not found to form endospore or capsule structures.

Colonial Morphology

Aggregate colonies of Flavobacterium marinum appear as yellow, semiopaque structures, with a diameter measuring 1.5mm-2.0mm


Genome Structure




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.