Cellular Self-Digestion and Persistence in Bacteria

Author:

Mohiuddin Sayed Golam,Ghosh SreyashiORCID,Ngo Han G.ORCID,Sensenbach ShayneORCID,Karki Prashant,Dewangan Narendra K.ORCID,Angardi Vahideh,Orman Mehmet A.

Abstract

Cellular self-digestion is an evolutionarily conserved process occurring in prokaryotic cells that enables survival under stressful conditions by recycling essential energy molecules. Self-digestion, which is triggered by extracellular stress conditions, such as nutrient depletion and overpopulation, induces degradation of intracellular components. This self-inflicted damage renders the bacterium less fit to produce building blocks and resume growth upon exposure to fresh nutrients. However, self-digestion may also provide temporary protection from antibiotics until the self-digestion-mediated damage is repaired. In fact, many persistence mechanisms identified to date may be directly or indirectly related to self-digestion, as these processes are also mediated by many degradative enzymes, including proteases and ribonucleases (RNases). In this review article, we will discuss the potential roles of self-digestion in bacterial persistence.

Funder

National Institute of Health

Publisher

MDPI AG

Subject

Virology,Microbiology (medical),Microbiology

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