Mineral salt requirements of Bacillus globisporus subsp. marinus strains |
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Authors: | Hans-Jürgen Rüger Günter Hentzschel |
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Institution: | (1) Institut für Meeresforschung, Am Handelshafen 12, D-2850 Bremerhaven, Federal Republic of Germany;(2) Staatsinstitut für Allgemeine Botanik der Universität Hamburg, Jungiusstr. 6-8, D-2000 Hamburg, Federal Republic of Germany |
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Abstract: | The mineral salt requirements of four isolates of Bacillus globisporus subsp. marinus and of two terrestrial strains of B. globisporus were investigated. In contrast to the terrestrial reference strains the marine isolates showed an obligate requirement for sodium and potassium. The sodium ion could not be replaced by potassium or by osmotically equivalent concentrations of mannitol. None of the strains proved to be dependent upon Mg2+ or Ca2+. The B. globisporus subsp. marinus strains are considered true marine bacteria. The criteria used to distinguish between marine and terrestrial Gram-negative bacteria can also be applied for Gram-positive bacteria. |
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Keywords: | Marine bacteria Bacillus Growth Salt requirements |
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