Ion interactions in the aggregation of Streptococcus mitis.

Ion interactions in the aggregation of Streptococcus mitis. Research Abstract Details 

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Ion interactions in the aggregation of Streptococcus mitis. Abstract Text:

S Abaas,T Holme,

Spontaneous aggregation of Streptococcus mitis ATCC 903 was highly dependent on various electrolytes such as sodium chloride, sodium phosphate or potassium phosphate with an optimum at 10 mM concentration. No aggregation was obtained in distilled water. Addition of a number of mono- or divalent ions to bacteria incubated in 10 mM phosphate or tris-maleate buffers resulted in an inhibition of aggregation. A 50% inhibition of aggregation was obtained at low concentrations of calcium, magnesium, sulphate and carbonate ions. Other mono- and divalent ions tested were needed in significantly higher concentrations in order to obtain the same inhibition. Aggregation inhibition by calcium or magnesium salts was reversed by chelation with EDTA. Washing bacteria previously treated with magnesium or calcium salts resulted in a complete recovery of aggregating ability. Spontaneously aggregated cells were completely dissociated at 10 mM magnesium sulphate or 100 mM sodium chloride. The results indicate that electrostatic interactions are of major importance for aggregation of S. mitis ATCC 903 whereas hydrophobic interaction plays a minor role.

Ion interactions in the aggregation of Streptococcus mitis. Publishing Authors By Initials

S Abaas,T Holme,

For similar bacteria: gram-positive bacteria: gram-positive cocci: streptococcaceae: streptococcus research abstracts see: bacteria: gram-positive bacteria: gram-positive cocci: streptococcaceae: streptococcus research

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Ion interactions in the aggregation of Streptococcus mitis. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Acta pathologica, microbiologica, et immunologica

VOLUME: 91

Page Numbers: 311-6

Journal Abbreviation:

ISSN: 0108-0180

DAY: 12

MONTH: Oct

YEAR: 1983

Ion interactions in the aggregation of Streptococcus mitis. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 8206623

Ion interactions in the aggregation of Streptococcus mitis. Keywords Mesh Terms:

KEYWORDS: Streptococcus

MESH TERMS: physiology

Chemical & Substance for Abstract: Ion interactions in the aggregation of Streptococcus mitis. Information

Substance Name: Calcium

Registry Number: 7440-70-2

Grant and Affiliation Information for Ion interactions in the aggregation of Streptococcus mitis.

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Country: DENMARK

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MEDLINETA: Acta Pathol Microbiol Immunol

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