« Previous AbstractExplosive odor signature profiling: A review of recent advances in technical analysis and detection    Next AbstractComparative analysis of Enterococcus faecalis sex pheromone plasmids identifies a single homologous DNA region which codes for aggregation substance »

Arch Microbiol

Title:		Identification of aggregation substances of Enterococcus faecalis cells after induction by sex pheromones. An immunological and ultrastructural investigation
Author(s):		Galli D; Wirth R; Wanner G;
Address:		"Lehrstuhl fur Mikrobiologie, Universitat Munchen, Federal Republic of Germany"
Journal Title:		Arch Microbiol
Year:		1989
Volume:		151
Issue:		6
Page Number:		486 - 490
DOI:		10.1007/BF00454863
ISSN/ISBN:		0302-8933 (Print) 0302-8933 (Linking)
Abstract:		"The sex pheromone system of Enterococcus faecalis is responsible for the clumping response of a plasmid carrying donor strain with a corresponding plasmid free recipient strain due to the production of sex pheromones by the recipient strain. The clumping response is mediated by a surface material (called aggregation substance) which is synthesized upon addition of sex pheromones to the cultures. Here we show that after induction a dense layer of 'hairlike' structures is formed on the cell wall of the bacteria. These hairlike structures are responsible for the cell-cell contact which leads to the aggregation of cells. Formation of these structures was specific, only occurring after the addition of homologous sex pheromone"
Keywords:		"Biological Factors/*analysis/biosynthesis/isolation & purification Blotting, Western Cell Wall/analysis Enterococcus faecalis/analysis/*metabolism/ultrastructure Immunohistochemistry Microscopy, Electron Pheromones/*metabolism Sex Attractants/*metabolism;"
Notes:		"MedlineGalli, D Wirth, R Wanner, G eng Research Support, Non-U.S. Gov't Germany 1989/01/01 Arch Microbiol. 1989; 151(6):486-90. doi: 10.1007/BF00454863"