Cell shape and cell-wall organization in Gram-negative bacteria

Cell shape and cell-wall organization in Gram-negative bacteria.

In bacterial cells, the peptidoglycan cell wall is the stress-bearing structure that dictates cell shape. Although many molecular details of the composition and assembly of cell-wall components are known, how the network of peptidoglycan subunits is organized to give the cell shape during normal growth and how it is reorganized in response to damage or environmental forces have been relatively ...

Cell Envelope Structure and Functions in Gram-negative Bacteria

Cell-cell communication in Gram-negative bacteria.

Over the last decade or so, a wealth of research has established that bacteria communicate with one another using small molecules. These signals enable the individuals in a population to coordinate their behaviour. In the case of pathogens, this behaviour may include decisions such as when to attack a host organism or form a biofilm. Consequently, such signalling systems are excellent targets f...

Cell wall alterations of gram-negative bacteria by aminoglycoside antibiotics.

After treatment with aminoglycoside antibiotics, Escherichia coli B and Pseudomonas aeruginosa P28 showed numerous blebs on the cell wall surface.

Gram-Negative Bacteria: The cell Membranes

This chapter presents a brief outline of our current knowledge of the structures of the bounding membranes (the inner and the outer membranes and the intermediate periplasmic layer) of a Gram-negative bacterial cell. Also the structure and chemical composition of the outer membrane vesicles (OMVs) originating from the surface of these bacteria including their proteomic profile, as obtained main...