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. 1969 Mar;17(3):435–440. doi: 10.1128/am.17.3.435-440.1969

Influence of pH and Metal Cations on Aggregative Growth of Non-Slime-forming Strains of Zoogloea ramigera

Donald I Angelbeck a,1, Edwin J Kirsch a
PMCID: PMC377707  PMID: 4976326

Abstract

Aggregative growth of non-slime-forming strains of Zoogloea ramigera was induced by growing the organisms at a depressed pH. Calcium and magnesium ion was found to reverse aggregative growth of the organisms. Conversely, aggregation was stimulated when the available inorganic cation concentration of the growth medium was lowered by the use of a chelating agent. The aggregative effects of pH depression or cation depletion and the dispersal effects of cation supplementation were observed only during cellular growth. The data suggest that aggregate formation of non-slime-forming strains of Z. ramigera may be related to the calcium or magnesium metabolism of the organisms, or both.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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