Interspecies conflict affects RNA expression

Abstract

Predation is an extreme form of competition between bacteria, involving the secretion of antimicrobial substances by predators, often packaged within outer membrane vesicles (OMVs). Recent studies into the Myxococcus xanthus/Escherichia coli predator/prey relationship have illuminated transcriptional changes during predation, identifying likely targets of predatory attack in the prey and nutrient assimilation strategies of the predator. Abundant non-coding RNAs can be observed in the predator and prey transcriptomes, with evidence of predation-dependent regulation of RNA levels. Given the observed secretion of regulatory RNAs within OMVs by bacteria, it will next be exciting to test whether the intercellular trafficking of regulatory RNAs is employed by predator and/or prey in their survival struggles.

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