Zoogloea ramigera
A Microbial Biorealm page on the genus Zoogloea ramigera
Classification
Higher order taxa
Bacteria; Proteobacteria; Betaproteobacteria; Rhodocycales; Zoogloea
Species
Zoogloea ramigera
Description and significance
At one time the only recognized species of the genus Zoogloea, Zoogloea ramigera is an aerobic, chemoorganotrophic, gram-negative, straight to slightly curved rod shaped, nonspore forming bacteria. These bacteria are arranged in sharply demarcated columns or fingers which protrude from clusters and constitute the historically recognized growth form of Zoogloea ramigera. Zoogloea ramigera occur free living in organically poluted fresh water and waste water at all stages of treatment. Cells are nonpigmented. Cells in older cultures may be encapsulated.
Genome structure
Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence? Does it have any plasmids? Are they important to the organism's lifestyle?
These bacteria are arranged in sharply demarcated columns or fingers which protrude from clusters and constitute the historically recognized growth form of Zoogloea ramigera. Cells are nonpigmented and in older cultures may be encapsulated. This microorganism forms flocs and films in liquid media and at late growth stages is distinguished by treelike or fingerlike morphology. Athough aerobic, growth can occur anaerobicly in the presence of nitrate. The preferred temperature for growth is between 28-37 degrees C. A pH of 7.0-7.5 is the most life sustaining environment for Zoogloea ramigera.
Ecology
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Pathology
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Application to Biotechnology
Does this organism produce any useful compounds or enzymes? What are they and how are they used?
Current Research
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References
Edited by student of Rachel Larsen
