Accession Number : AD0768819

Title :   Zur Morphogenese der Zellwand von Staphylokokken. I. Querwandbildung und Zelltrennung (Contribution to the Morphogenesis of the Cell Wall of Staphylococci. I. The Formation of the Cross Wall and the Cell Separation),

Corporate Author : ROBERT KOCH-INSTITUT BERLIN (WEST GERMANY)

Personal Author(s) : Giesbrecht,Peter ; Wecke,Joerg

Report Date : 20 JUL 1971

Pagination or Media Count : 20

Abstract : The formation of the cross wall and the separation of the two daughter cells of Staphylococcus aureus have been studied. After an asymmetrical initiation of the cross wall formation under the primary cell wall, an annular torus is developing. From this torus under the primary cell wall, by centripetal surface growth, the cross wall is continued in the way of a closing iris diaphragm. By this a concentric tubular system is built-in continually into the cross wall which is involved in the cell separation. Then, by apposition growth, a continual thickening of the cross wall follows its surface growth. Further important functions during the cell separation have a peripheric annular canal within the cross wall which is not activated before the cross wall is completed and a periodically arranged pore system within the primary cell wall. All these structures, so far unknown in bacteria, are developing during the different stages of cell separation. Their function during cross wall formation is discussed in detail. As to the particular stages of the cell separation and the autolysins herein involved, detailed conceptions are proposed. (Author)

Descriptors :   (*STAPHYLOCOCCUS, *CELL WALL), CYTOLOGY, CELL STRUCTURE, MITOSIS, BACTERIA, WEST GERMANY

Subject Categories : Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE