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Localization of aggregation substances of Enterococcus faecalis after induction by sex pheromones

Localization of aggregation substances of Enterococcus faecalis after induction by sex pheromones 203 151 151 6 6 Gerhard Wanner Helmut Formanek Dominique Galli Reinhard Wirth Botanisches Institut der Universität München Menzinger Strasse 67 D-8000 München 19 Germany Lehrstuhl für Mikrobiologie der Universität München Maria-Ward-Strasse 1A D-8000 München 19 Germany Abstract The distribution of sex pheromone induced aggregation substance was studied on the cell surface of various Enterococcus faecalis strains. In the accompanying paper we have shown that the aggregation substance appears as a layer of hairlike structures. Using direct and indirect immunogold technique, transmission electron microscopy and high resolution scanning electron microscopy we investigated the appearance and distribution of the aggregation substance. The “hairs” increase in number with increasing exposure to sex pheromones (maximum density: 1300/μm 2 ). We show that these structures are unequally distributed over the cell surface, even if the cells were induced by sex pheromones for a long period of time. Statistical analysis of the unequal distribution indicates that aggregation substance is incorporated into pre-existing “old” cell-walls and that this incorporation shows a saturation ca. 40 min after addition of sex pheromones. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Microbiology Springer Journals

Localization of aggregation substances of Enterococcus faecalis after induction by sex pheromones

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References (11)

Publisher
Springer Journals
Copyright
Copyright © 1989 by Springer-Verlag
Subject
Life Sciences; Biotechnology; Biochemistry, general; Cell Biology; Ecology; Microbial Ecology; Microbiology
ISSN
0302-8933
eISSN
1432-072X
DOI
10.1007/BF00454864
Publisher site
See Article on Publisher Site

Abstract

203 151 151 6 6 Gerhard Wanner Helmut Formanek Dominique Galli Reinhard Wirth Botanisches Institut der Universität München Menzinger Strasse 67 D-8000 München 19 Germany Lehrstuhl für Mikrobiologie der Universität München Maria-Ward-Strasse 1A D-8000 München 19 Germany Abstract The distribution of sex pheromone induced aggregation substance was studied on the cell surface of various Enterococcus faecalis strains. In the accompanying paper we have shown that the aggregation substance appears as a layer of hairlike structures. Using direct and indirect immunogold technique, transmission electron microscopy and high resolution scanning electron microscopy we investigated the appearance and distribution of the aggregation substance. The “hairs” increase in number with increasing exposure to sex pheromones (maximum density: 1300/μm 2 ). We show that these structures are unequally distributed over the cell surface, even if the cells were induced by sex pheromones for a long period of time. Statistical analysis of the unequal distribution indicates that aggregation substance is incorporated into pre-existing “old” cell-walls and that this incorporation shows a saturation ca. 40 min after addition of sex pheromones.

Journal

Archives of MicrobiologySpringer Journals

Published: May 1, 1989

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