Resource limitation drives spatial organization in microbial groups.

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Etat: Public
Version: Final published version
ID Serval
serval:BIB_5C82E3AB2084
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Resource limitation drives spatial organization in microbial groups.
Périodique
ISME Journal
Auteur(s)
Mitri S., Clarke E., Foster K.R.
ISSN
1751-7370 (Electronic)
ISSN-L
1751-7362
Statut éditorial
Publié
Date de publication
2016
Peer-reviewed
Oui
Volume
10
Numéro
6
Pages
1471-1482
Langue
anglais
Résumé
Dense microbial groups such as bacterial biofilms commonly contain a diversity of cell types that define their functioning. However, we have a limited understanding of what maintains, or purges, this diversity. Theory suggests that resource levels are key to understanding diversity and the spatial arrangement of genotypes in microbial groups, but we need empirical tests. Here we use theory and experiments to study the effects of nutrient level on spatio-genetic structuring and diversity in bacterial colonies. Well-fed colonies maintain larger well-mixed areas, but they also expand more rapidly compared with poorly-fed ones. Given enough space to expand, therefore, well-fed colonies lose diversity and separate in space over a similar timescale to poorly fed ones. In sum, as long as there is some degree of nutrient limitation, we observe the emergence of structured communities. We conclude that resource-driven structuring is central to understanding both pattern and process in diverse microbial communities.
Pubmed
Web of science
Open Access
Oui
Création de la notice
30/11/2015 17:50
Dernière modification de la notice
20/08/2019 15:15
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