Cargando…

Selection for Resistance to a Glyphosate-Containing Herbicide in Salmonella enterica Does Not Result in a Sustained Activation of the Tolerance Response or Increased Cross-Tolerance and Cross-Resistance to Clinically Important Antibiotics

Evolution of bacterial tolerance to antimicrobials precedes evolution of resistance and may result in cross-tolerance, cross-resistance, or collateral sensitivity to other antibiotics. Transient exposure of gut bacteria to glyphosate, the world’s most widely used herbicide, has been linked to the ac...

Descripción completa

Detalles Bibliográficos
Autores principales: Pöppe, Judith, Bote, Katrin, Ramesh, Abhinaya, Murugaiyan, Jayaseelan, Kuropka, Benno, Kühl, Michael, Johnston, Paul, Roesler, Uwe, Makarova, Olga
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Society for Microbiology 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7688225/
https://www.ncbi.nlm.nih.gov/pubmed/33008821
http://dx.doi.org/10.1128/AEM.01204-20
_version_ 1783613666811183104
author Pöppe, Judith
Bote, Katrin
Ramesh, Abhinaya
Murugaiyan, Jayaseelan
Kuropka, Benno
Kühl, Michael
Johnston, Paul
Roesler, Uwe
Makarova, Olga
author_facet Pöppe, Judith
Bote, Katrin
Ramesh, Abhinaya
Murugaiyan, Jayaseelan
Kuropka, Benno
Kühl, Michael
Johnston, Paul
Roesler, Uwe
Makarova, Olga
author_sort Pöppe, Judith
collection PubMed
description Evolution of bacterial tolerance to antimicrobials precedes evolution of resistance and may result in cross-tolerance, cross-resistance, or collateral sensitivity to other antibiotics. Transient exposure of gut bacteria to glyphosate, the world’s most widely used herbicide, has been linked to the activation of the stress response and changes in susceptibility to antibiotics. In this study, we investigated whether chronic exposure to a glyphosate-based herbicide (GBH) results in resistance, a constitutive activation of the tolerance and stress responses, and cross-tolerance or cross-resistance to antibiotics. Of the 10 farm animal-derived clinical isolates of Salmonella enterica subjected to experimental evolution in increasing concentrations of GBH, three isolates showed stable resistance with mutations associated with the glyphosate target gene aroA and no fitness costs. Global quantitative proteomics analysis demonstrated activation of the cellular tolerance and stress response during the transient exposure to GBH but not constitutively in the resistant mutants. Resistant mutants displayed no cross-resistance or cross-tolerance to antibiotics. These results suggest that while transient exposure to GBH triggers cellular tolerance response in Salmonella enterica, this response does not become genetically fixed after selection for resistance to GBH and does not result in increased cross-tolerance or cross-resistance to clinically important antibiotics under our experimental conditions. IMPORTANCE Glyphosate-based herbicides (GBH) are among the world’s most popular, with traces commonly found in food, feed, and the environment. Such high ubiquity means that the herbicide may come into contact with various microorganisms, on which it acts as an antimicrobial, and it may select for resistance and cross-resistance to clinically important antibiotics. It is therefore important to estimate whether the widespread use of pesticides may be an underappreciated source of antibiotic-resistant microorganisms that may compromise efficiency of antibiotic treatments in humans and animals.
format Online
Article
Text
id pubmed-7688225
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher American Society for Microbiology
record_format MEDLINE/PubMed
spelling pubmed-76882252020-12-09 Selection for Resistance to a Glyphosate-Containing Herbicide in Salmonella enterica Does Not Result in a Sustained Activation of the Tolerance Response or Increased Cross-Tolerance and Cross-Resistance to Clinically Important Antibiotics Pöppe, Judith Bote, Katrin Ramesh, Abhinaya Murugaiyan, Jayaseelan Kuropka, Benno Kühl, Michael Johnston, Paul Roesler, Uwe Makarova, Olga Appl Environ Microbiol Public and Environmental Health Microbiology Evolution of bacterial tolerance to antimicrobials precedes evolution of resistance and may result in cross-tolerance, cross-resistance, or collateral sensitivity to other antibiotics. Transient exposure of gut bacteria to glyphosate, the world’s most widely used herbicide, has been linked to the activation of the stress response and changes in susceptibility to antibiotics. In this study, we investigated whether chronic exposure to a glyphosate-based herbicide (GBH) results in resistance, a constitutive activation of the tolerance and stress responses, and cross-tolerance or cross-resistance to antibiotics. Of the 10 farm animal-derived clinical isolates of Salmonella enterica subjected to experimental evolution in increasing concentrations of GBH, three isolates showed stable resistance with mutations associated with the glyphosate target gene aroA and no fitness costs. Global quantitative proteomics analysis demonstrated activation of the cellular tolerance and stress response during the transient exposure to GBH but not constitutively in the resistant mutants. Resistant mutants displayed no cross-resistance or cross-tolerance to antibiotics. These results suggest that while transient exposure to GBH triggers cellular tolerance response in Salmonella enterica, this response does not become genetically fixed after selection for resistance to GBH and does not result in increased cross-tolerance or cross-resistance to clinically important antibiotics under our experimental conditions. IMPORTANCE Glyphosate-based herbicides (GBH) are among the world’s most popular, with traces commonly found in food, feed, and the environment. Such high ubiquity means that the herbicide may come into contact with various microorganisms, on which it acts as an antimicrobial, and it may select for resistance and cross-resistance to clinically important antibiotics. It is therefore important to estimate whether the widespread use of pesticides may be an underappreciated source of antibiotic-resistant microorganisms that may compromise efficiency of antibiotic treatments in humans and animals. American Society for Microbiology 2020-11-24 /pmc/articles/PMC7688225/ /pubmed/33008821 http://dx.doi.org/10.1128/AEM.01204-20 Text en Copyright © 2020 Pöppe et al. https://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Public and Environmental Health Microbiology
Pöppe, Judith
Bote, Katrin
Ramesh, Abhinaya
Murugaiyan, Jayaseelan
Kuropka, Benno
Kühl, Michael
Johnston, Paul
Roesler, Uwe
Makarova, Olga
Selection for Resistance to a Glyphosate-Containing Herbicide in Salmonella enterica Does Not Result in a Sustained Activation of the Tolerance Response or Increased Cross-Tolerance and Cross-Resistance to Clinically Important Antibiotics
title Selection for Resistance to a Glyphosate-Containing Herbicide in Salmonella enterica Does Not Result in a Sustained Activation of the Tolerance Response or Increased Cross-Tolerance and Cross-Resistance to Clinically Important Antibiotics
title_full Selection for Resistance to a Glyphosate-Containing Herbicide in Salmonella enterica Does Not Result in a Sustained Activation of the Tolerance Response or Increased Cross-Tolerance and Cross-Resistance to Clinically Important Antibiotics
title_fullStr Selection for Resistance to a Glyphosate-Containing Herbicide in Salmonella enterica Does Not Result in a Sustained Activation of the Tolerance Response or Increased Cross-Tolerance and Cross-Resistance to Clinically Important Antibiotics
title_full_unstemmed Selection for Resistance to a Glyphosate-Containing Herbicide in Salmonella enterica Does Not Result in a Sustained Activation of the Tolerance Response or Increased Cross-Tolerance and Cross-Resistance to Clinically Important Antibiotics
title_short Selection for Resistance to a Glyphosate-Containing Herbicide in Salmonella enterica Does Not Result in a Sustained Activation of the Tolerance Response or Increased Cross-Tolerance and Cross-Resistance to Clinically Important Antibiotics
title_sort selection for resistance to a glyphosate-containing herbicide in salmonella enterica does not result in a sustained activation of the tolerance response or increased cross-tolerance and cross-resistance to clinically important antibiotics
topic Public and Environmental Health Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7688225/
https://www.ncbi.nlm.nih.gov/pubmed/33008821
http://dx.doi.org/10.1128/AEM.01204-20
work_keys_str_mv AT poppejudith selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics
AT botekatrin selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics
AT rameshabhinaya selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics
AT murugaiyanjayaseelan selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics
AT kuropkabenno selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics
AT kuhlmichael selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics
AT johnstonpaul selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics
AT roesleruwe selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics
AT makarovaolga selectionforresistancetoaglyphosatecontainingherbicideinsalmonellaentericadoesnotresultinasustainedactivationofthetoleranceresponseorincreasedcrosstoleranceandcrossresistancetoclinicallyimportantantibiotics