Zobrazeno 1 - 10 of 89 pro vyhledávání: '"Conor P. O'Byrne"'
1
Akademický článek
A single point mutation in the Listeria monocytogenes ribosomal gene rpsU enables SigB activation independently of the stressosome and the anti-sigma factor antagonist RsbV
Autor: Xuchuan Ma, Marcel H. Tempelaars, Marcel H. Zwietering, Sjef Boeren, Conor P. O’Byrne, Heidy M. W. den Besten, Tjakko Abee
Publikováno v: Frontiers in Microbiology, Vol 15 (2024)
Microbial population heterogeneity leads to different stress responses and growth behavior of individual cells in a population. Previously, a point mutation in the rpsU gene (rpsUG50C) encoding ribosomal protein S21 was identified in a Listeria monoc
Externí odkaz: https://doaj.org/article/4441ef3782c74f6e84b8f01556024a3e
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2
Akademický článek
A novel RofA-family transcriptional regulator, GadR, controls the development of acid resistance in Listeria monocytogenes
Autor: Jialun Wu, Olivia McAuliffe, Conor P. O'Byrne
Publikováno v: mBio, Vol 14, Iss 6 (2023)
ABSTRACTStomach acid provides a significant innate barrier to the entry of the food-borne pathogen Listeria monocytogenes into the human gastrointestinal tract. A key determinant of acid resistance in this bacterium is the conserved glutamate decarbo
Externí odkaz: https://doaj.org/article/bbd2cce40aba43f59edef012b1c88e3e
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3
Akademický článek
The σB-Mediated General Stress Response of Listeria monocytogenes: Life and Death Decision Making in a Pathogen
Autor: Duarte N. Guerreiro, Talia Arcari, Conor P. O’Byrne
Publikováno v: Frontiers in Microbiology, Vol 11 (2020)
Sensing and responding to environmental cues is critical for the adaptability and success of the food-borne bacterial pathogen Listeria monocytogenes. A supramolecular multi-protein complex known as the stressosome, which acts as a stress sensing hub
Externí odkaz: https://doaj.org/article/ef22922c6bbe4f90879b3f06e32be334
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5
Akademický článek
Blue Light Sensing in Listeria monocytogenes Is Temperature-Dependent and the Transcriptional Response to It Is Predominantly SigB-Dependent
Autor: Amber L. Dorey, Bo-Hyung Lee, Bjorn Rotter, Conor P. O’Byrne
Publikováno v: Frontiers in Microbiology, Vol 10 (2019)
Listeria monocytogenes is an important food-borne pathogen that is tolerant to many of the stresses commonly used during food preservation. Outside the host, the bacterium has a saprophytic lifestyle that includes periodic exposure to solar irradianc
Externí odkaz: https://doaj.org/article/de8b96d1fc4245a8899af2e26d381165
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6
The stressosome is required to transduce low pH signals leading to increased transcription of the amino acid-based acid tolerance mechanisms in Listeria monocytogenes
Autor: Duarte N. Guerreiro, Aoife Boyd, Conor P. O'Byrne
Publikováno v: Access Microbiology. 4
Increasing proton concentration in the environment represents a potentially lethal stress for single-celled microorganisms. To survive in an acidifying environment, the foodborne pathogen Listeria monocytogenes quickly activates the alternative sigma
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73c86844077ece5a3dbc595c759a4dc8
https://doi.org/10.1099/acmi.0.000455
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8
In Vitro Evolution of Listeria monocytogenes Reveals Selective Pressure for Loss of SigB and AgrA Function at Different Incubation Temperatures
Autor: Duarte N. Guerreiro, Jialun Wu, Emma McDermott, Dominique Garmyn, Peter Dockery, Aoife Boyd, Pascal Piveteau, Conor P. O’Byrne
Publikováno v: Applied and Environmental Microbiology
Applied and Environmental Microbiology, 2022, 88 (11), 17p. ⟨10.1128/aem.00330-22⟩
Appl Environ Microbiol
The alternative sigma factor B (σ(B)) contributes to the stress tolerance of the foodborne pathogen Listeria monocytogenes by upregulating the general stress response. We previously showed that σ(B) loss-of-function mutations arise frequently in st
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5eabe0d028a859b883418c16d762bc9a
https://doi.org/10.1128/aem.00330-22
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9
Perfluorooctanoic acid (PFOA) sensitises E. coli to acid stress
Autor: Gaurav Chugh, Conor P O’Byrne, Florence Abram
Publikováno v: Access Microbiology. 4
Per-and Polyfluoroalkyl Substances (PFAS), which includes PFOS and PFOA, are recognized as the most important class of emerging contaminants due to their widespread presence in wildlife and humans, their environmental persistence, bioaccumulative pot
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::06d3e9053718d571d42a7b0ac33575c1
https://doi.org/10.1099/acmi.ac2021.po0250
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10
Listeria monocytogenes requires the RsbX protein to prevent SigB-activation under non-stressed conditions
Autor: Hasan Tükenmez, Ana H. Oliveira, Duarte N. Guerreiro, Francisco García-del Portillo, Jörgen Johansson, Charlotte Dessaux, Teresa Tiensuu, Conor P. O'Byrne
Publikováno v: Journal of Bacteriology
The survival of microbial cells under changing environmental conditions requires an efficient reprogramming of transcription, often mediated by alternative sigma factors. The Gram-positive human pathogen Listeria monocytogenes senses and responds to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc13fd181373e6da5e8679ea407e575b
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-190844
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