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Interspecies conflict affects RNA expression.

David E Whitworth1

  • 1Institute of Biological Environmental and Rural Sciences, Aberystwyth University, Ceredigion, SY23 3DD, UK.

FEMS Microbiology Letters
|April 13, 2018
PubMed
Summary

Bacterial predation involves outer membrane vesicles (OMVs) and transcriptional changes. Researchers found that regulatory RNAs within OMVs may play a role in bacterial survival strategies during predation.

Area of Science:

  • Microbiology
  • Bacterial interactions
  • Molecular biology

Background:

  • Predation is a key bacterial competition mechanism, utilizing antimicrobial substances often in outer membrane vesicles (OMVs).
  • The Myxococcus xanthus/Escherichia coli system offers insights into transcriptional dynamics during bacterial predation.
  • Non-coding RNAs are present in bacterial transcriptomes and show regulation during predation.

Purpose of the Study:

  • To investigate transcriptional changes in predator-prey bacterial interactions.
  • To identify prey targets and predator nutrient assimilation strategies.
  • To explore the role of regulatory RNAs in bacterial predation and survival.

Main Methods:

  • Comparative transcriptomics of Myxococcus xanthus and Escherichia coli during predation.

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  • Analysis of gene expression patterns to identify prey targets and predator strategies.
  • Examination of non-coding RNA abundance and regulation.

    • Main Results:

    • Transcriptional alterations were identified in both predator and prey during the predation process.
    • Specific prey targets and predator nutrient assimilation pathways were highlighted.
    • Predation-dependent regulation of non-coding RNA levels was observed.

    Conclusions:

    • Bacterial predation involves complex transcriptional reprogramming and nutrient strategies.
    • Regulatory RNAs are abundant and their levels are modulated by predation.
    • Intercellular RNA trafficking via OMVs is a potential mechanism in bacterial survival struggles.