RESUMEN

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.

Asunto(s)

Bacterias , Regulación Bacteriana de la Expresión Génica , Estrés Fisiológico , Bacterias/metabolismo , Bacterias/genética , Bacterias/crecimiento & desarrollo , Fenómenos Fisiológicos Bacterianos , Transducción de Señal , Viabilidad Microbiana , Guanosina Pentafosfato/metabolismo , Proteínas Bacterianas/metabolismo , Proteínas Bacterianas/genética