idw – Informationsdienst Wissenschaft

Nachrichten, Termine, Experten

Grafik: idw-Logo
Advanced Search ?
Home > Press release: Salmonella and self-sacrifice
idw-Abo
idw-News App:

AppStore

Google Play Store

Instance:
Share on: 
05/26/2009 13:55

Salmonella and self-sacrifice

Presse- und Informationsdienst Presse- und Informationsdienst
Schweizerischer Nationalfonds SNF

    How diarrhoea pathogens multiply in our intestines

    Our large intestines are heavily populated by bacteria and as such really do not have space for newcomers. Despite this, Salmonella are able to multiply there. In a project funded by the Swiss National Science Foundation, a group led by Wolf-Dietrich Hardt from ETH Zurich is uncovering the remarkable strategies used by the feared diarrhoea pathogens. A small number of the Salmonella sacrifice themselves by attacking the intestinal cells. Although this kills them, they succeed in causing inflammation. The inflamed intestine excretes mucus, which ultimately accelerates the growth of the remaining salmonella in the intestine. Thus the bacteria benefit from the death of their sister cells.

    Prof. Wolf-Dietrich Hardt
    Institute of Microbiology
    Department of Biology, ETH Zurich
    ETH Hönggerberg, HCI G 417
    Wolfgang-Pauli Str. 10
    CH-8093 Zurich
    E-mail: hardt@micro.biol.ethz.ch
    Tel.: +41 44 632 51 43
    Fax: +41 44 632 11 29
    http://www.micro.biol.ethz.ch

    More information:

    http://www.snf.ch > Media > Picture of the month
    http://www.micro.biol.ethz.ch

    Images

    Salmonella (red) have to prevail against the intestinal flora (small green dashes). They will succeed if some of them manage to attack the intestinal wall (blue). Although the attacking bacteria are killed, they cause inflammation which the remaining Salmonella can benefit from to proliferate.
    Salmonella (red) have to prevail against the intestinal flora (small green dashes). They will succee ...
    Source: © Bärbel Stecher and Wolf-Dietrich Hardt, Institute of Microbiologye ETH Zurich/SNSF

    Criteria of this press release:
    Medicine, Nutrition / healthcare / nursing
    transregional, national
    Miscellaneous scientific news/publications, Research projects
    English

     

    Salmonella (red) have to prevail against the intestinal flora (small green dashes). They will succeed if some of them manage to attack the intestinal wall (blue). Although the attacking bacteria are killed, they cause inflammation which the remaining Salmonella can benefit from to proliferate.


    For download

    x

    Help

    Search / advanced search of the idw archives
    Combination of search terms

    You can combine search terms with and, or and/or not, e.g. Philo not logy.

    Brackets

    You can use brackets to separate combinations from each other, e.g. (Philo not logy) or (Psycho and logy).

    Phrases

    Coherent groups of words will be located as complete phrases if you put them into quotation marks, e.g. “Federal Republic of Germany”.

    Selection criteria

    You can also use the advanced search without entering search terms. It will then follow the criteria you have selected (e.g. country or subject area).

    If you have not selected any criteria in a given category, the entire category will be searched (e.g. all subject areas or all countries).