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Bioessays. 2010 Jul;32(7):571-80. doi: 10.1002/bies.200900192.

Why bacteria matter in animal development and evolution.

Author information

1
Zoological Institute, Christian-Albrechts-University Kiel, Olshausen Strasse 40, 24098 Kiel, Germany.

Abstract

While largely studied because of their harmful effects on human health, there is growing appreciation that bacteria are important partners for invertebrates and vertebrates, including man. Epithelia in metazoans do not only select their microbiota; a coevolved consortium of microbes enables both invertebrates and vertebrates to expand the range of diet supply, to shape the complex immune system and to control pathogenic bacteria. Microbes in zebrafish and mice regulate gut epithelial homeostasis. In a squid, microbes control the development of the symbiotic light organ. These discoveries point to a key role for bacteria in any metazoan existence, and imply that beneficial bacteria-host interactions should be considered an integral part of development and evolution.

PMID:
20544735
DOI:
10.1002/bies.200900192
[Indexed for MEDLINE]

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