Outer membrane proteins and morphological alterations of Shigella spp. under starvation in seawater | Zendy

Ellafi Ali | Zendy; Ben Abdallah Fethi | Zendy; Lagha Rihab | Zendy; Amina Bakhrouf | Zendy

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Outer membrane proteins and morphological alterations of Shigella spp. under starvation in seawater

Author(s) -

Ellafi Ali,

Ben Abdallah Fethi,

Lagha Rihab,

Amina Bakhrouf

Publication year - 2011

Publication title -

african journal of microbiology research

Language(s) - English

Resource type - Journals

ISSN - 1996-0808

DOI - 10.5897/ajmr10.830

Subject(s) - bacterial outer membrane , shigella , seawater , membrane , bacteria , microbiology and biotechnology , chemistry , microcosm , membrane protein , biology , biophysics , biochemistry , escherichia coli , ecology , environmental chemistry , salmonella , genetics , gene

In this study, we incubated four strains of Shigella in seawater microcosms (at room temperature and at 4°C) for eight months and we studied the alteration of their morphologic and outer membranes proteins. The starved cells showed an evolution to the filterable minicells state capable to pass membrane pore size 0.45 µm. In addition, the atomic force micrographs showed a reduction of the cells size and an evolution to coccoid-shapes. Outer membrane proteins patterns of stressed bacteria did not changed too much and these modifications were manifested by the appearance of one new band.

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