Microbial Primer: what is the stringent response and how does it allow bacteria to survive stress?

Microbiology (Reading)

The Florey Institute of Infection, School of Biosciences, University of Sheffield, Sheffield, S10 2TN, UK.

Published: July 2024

The stringent response is a conserved bacterial stress response that allows bacteria to alter their activity and survive under nutrient-limiting conditions. Activation of the stringent response is characterized by the production of intracellular signalling molecules, collectively termed (p)ppGpp, which interact with multiple targets inside bacterial cells. Together, these interactions induce a slow growth phenotype to aid bacterial survival by altering the transcriptomic profile of the cell, inhibiting ribosome biosynthesis and targeting enzymes involved in other key metabolic processes.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11288640PMC
http://dx.doi.org/10.1099/mic.0.001483DOI Listing

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