Browsing by Author "O'Donoghue, Beth"
Now showing items 1-3 of 3
-
Blue-light inhibition of listeria monocytogenes growth is mediated by reactive oxygen species and is influenced by σband the blue-light sensor lmo0799
O'Donoghue, Beth; NicAogáin, Kerrie; Bennett, Claire; Conneely, Alan; Tiensuu, Teresa; Johansson, Jörgen; O'Byrne, Conor (American Society for Microbiology, 2016-04-29)Listeria monocytogenes senses blue light via the flavin mononucleotide-containing sensory protein Lmo0799, leading to activation of the general stress response sigma factor SigB (sigma(B)). In this study, we investigated ... -
Loss of sigb in listeria monocytogenes strains egd-e and 10403s confers hyperresistance to hydrogen peroxide in stationary phase under aerobic conditions
Boura, Marcia; Keating, Ciara; Royet, Kevin; Paudyal, Ranju; O'Donoghue, Beth; O'Byrne, Conor P.; Karatzas, Kimon A. G. (American Society for Microbiology, 2016-05-20)SigB is the main stress gene regulator in Listeria monocytogenes affecting the expression of more than 150 genes and thus contributing to multiple-stress resistance. Despite its clear role in most stresses, its role in ... -
A molecular genetic investigation into stress sensing in the food-borne pathogen Listeria Monocytogenes: roles for RsbR and its paralogues
O'Donoghue, Beth (2016-11-30)The alternative sigma factor σB is conserved across several Gram-positive bacteria species as the major general stress response (GSR) regulator. For the food-borne pathogen Listeria monocytogenes, σB enables the bacterium ...