Changes in the genetic requirements for microbial interactions with increasing community complexity

Autor: Manon Morin, Emily C Pierce, Rachel J Dutton
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: eLife, Vol 7 (2018)
Druh dokumentu: article
ISSN: 2050-084X
DOI: 10.7554/eLife.37072
Popis: Microbial community structure and function rely on complex interactions whose underlying molecular mechanisms are poorly understood. To investigate these interactions in a simple microbiome, we introduced E. coli into an experimental community based on a cheese rind and identified the differences in E. coli’s genetic requirements for growth in interactive and non-interactive contexts using Random Barcode Transposon Sequencing (RB-TnSeq) and RNASeq. Genetic requirements varied among pairwise growth conditions and between pairwise and community conditions. Our analysis points to mechanisms by which growth conditions change as a result of increasing community complexity and suggests that growth within a community relies on a combination of pairwise and higher-order interactions. Our work provides a framework for using the model organism E. coli as a readout to investigate microbial interactions regardless of the genetic tractability of members of the studied ecosystem.
Databáze: Directory of Open Access Journals