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. 2024:2721:85-102.
doi: 10.1007/978-1-0716-3473-8_7.

The Pseudomonas aeruginosa Resistome: Permanent and Transient Antibiotic Resistance, an Overview

Fernando Sanz-García  1 , Pablo Laborda  1 , Luz Edith Ochoa-Sánchez  1 , José Luis Martínez  2 , Sara Hernando-Amado  1
Affiliations

The Pseudomonas aeruginosa Resistome: Permanent and Transient Antibiotic Resistance, an Overview

Fernando Sanz-García et al. Methods Mol Biol. 2024.

Abstract

One of the most concerning characteristics of Pseudomonas aeruginosa is its low susceptibility to several antibiotics of common use in clinics, as well as its facility to acquire increased resistance levels. Consequently, the study of the antibiotic resistance mechanisms of this bacterium is of relevance for human health. For such a study, different types of resistance should be distinguished. The intrinsic resistome is composed of a set of genes, present in the core genome of P. aeruginosa, which contributes to its characteristic, species-specific, phenotype of susceptibility to antibiotics. Acquired resistance refers to those genetic events, such as the acquisition of mutations or antibiotic resistance genes that reduce antibiotic susceptibility. Finally, antibiotic resistance can be transiently acquired in the presence of specific compounds or under some growing conditions. The current article provides information on methods currently used to analyze intrinsic, mutation-driven, and transient antibiotic resistance in P. aeruginosa.

Keywords: Acquired resistance; Antibiotic resistance; Intrinsic resistance; Pseudomonas aeruginosa; Resistome.

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