Results 61 to 70 of about 9,005 (236)

Virulence of Pseudomonas aeruginosa in Cystic Fibrosis: Relationships between Normoxia and Anoxia Lifestyle

Antibiotics, 2023
The airways of cystic fibrosis (CF) patients are colonized by many pathogens and the most common is Pseudomonas aeruginosa, an environmental pathogen that is able to infect immunocompromised patients thanks to its ability to develop resistance to ...
Rosanna Papa, Esther Imperlini, Marika Trecca, Irene Paris, Gianluca Vrenna, Marco Artini, Laura Selan   +6 more
doaj   +1 more source

Quorum quenching effect of cyclodextrins on the pyocyanin and pyoverdine production of Pseudomonas aeruginosa

Applied Microbiology and Biotechnology
Various virulence determinants in Pseudomonas aeruginosa are regulated by the quorum sensing (QS) network producing and releasing signalling molecules.
Ildikó Fekete-Kertész, Zsófia Berkl, Kata Buda, É. Fenyvesi, Lajos Szente, Mónika Molnár   +5 more
semanticscholar   +1 more source

Pseudomonas aeruginosa AlgR Phosphorylation Status Differentially Regulates Pyocyanin and Pyoverdine Production

mBio, 2018
Pseudomonas aeruginosa employs numerous, complex regulatory elements to control expression of its many virulence systems. The P. aeruginosa AlgZR two-component regulatory system controls the expression of several crucial virulence phenotypes. We recently
Alexander S. Little, Yuta Okkotsu, Alexandria A. Reinhart, F. Heath Damron, Mariette Barbier, Brandon Barrett, Amanda G. Oglesby-Sherrouse, Joanna B. Goldberg, William L. Cody, Michael J. Schurr, Michael L. Vasil, Michael J. Schurr   +11 more
doaj   +1 more source

Zwei Pyoverdine aus Pseudomonas aeruginosa R. / Two Pyoverdins from Pseudomonas aeruginosa R

Zeitschrift für Naturforschung C, 1991
Abstract The structure elucidation of two pyoverdins from the strain R. of Pseudomonas aeruginosa is described.
S. Gipp, J. Hahn, K. Taraz, H. Budzikiewicz   +3 more
openaire   +1 more source

A compensatory RNase E variation increases Iron Piracy and Virulence in multidrug-resistant Pseudomonas aeruginosa during Macrophage infection.

PLoS Pathogens, 2023
During chronic cystic fibrosis (CF) infections, evolved Pseudomonas aeruginosa antibiotic resistance is linked to increased pulmonary exacerbations, decreased lung function, and hospitalizations.
Mylene Vaillancourt, Anna Clara Milesi Galdino, Sam P Limsuwannarot, Diana Celedonio, Elizabeth Dimitrova, Matthew Broerman, Catherine Bresee, Yohei Doi, Janet S Lee, William C Parks, Peter Jorth   +10 more
doaj   +1 more source

Time Kill Curve PD Modelling Experiments Are Affected by Trailing MIC Endpoints: Refinement of MIC Determination for S. pseudintermedius

Journal of Veterinary Pharmacology and Therapeutics, EarlyView.
ABSTRACT Trailing endpoints are a recognised challenge in broth microdilution MIC testing, particularly for bacteriostatic agents such as trimethoprim (TMP) and sulphonamides. In this study, we applied a pharmacodynamically guided refinement to determine the MIC of the combination against Staphylococcus pseudintermedius; we did not aim at redefining ...
Andrew Mead, Ludovic Pelligand
wiley   +1 more source

Pyoverdine binding aptamers and label-free electrochemical detection of pseudomonads

Frontiers in Chemistry
Pyoverdines are iron-chelating siderophores employed by various pseudomonads to promote their growth in iron-limited environments, facilitating both beneficial and detrimental interactions with co-inhabiting microbes or hosts, including plants and ...
S. Anisuzzaman, Nima Alimoradi, Dilini Singappuli-Arachchige, Soma Banerjee, Gennady V. Pogorelko, Yunus A. Kaiyum, Philip E. Johnson, P. Shrotriya, M. Nilsen-Hamilton   +8 more
semanticscholar   +1 more source

Iron Uptake Analysis in a Set of Clinical Isolates of Pseudomonas putida [PDF]

, 2016
Pseudomonas putida strains are frequent inhabitants of soil and aquatic niches and they are occasionally isolated from hospital environments. As the available iron sources in human tissues, edaphic, and aquatic niches are different, we have analyzed iron-
Geoffroy, Valérie A., Molina, Lázaro, Ramos, Juan L., Segura, Ana, Udaondo, Zulema   +4 more
core   +1 more source

Conditional privatization of a public siderophore enables Pseudomonas aeruginosa to resist cheater invasion

Nature Communications, 2018
Pyoverdine is secreted by the opportunistic pathogen Pseudomonas aeruginosa to scavenge iron from its hosts. Here, the authors show that under stress conditions P.
Zhenyu Jin, Jiahong Li, Lei Ni, Rongrong Zhang, Aiguo Xia, Fan Jin   +5 more
doaj   +1 more source

Effects of exogenous pyoverdines on Fe availability and their impacts on Mn(II) oxidation by Pseudomonas putida GB-1

Frontiers in Microbiology, 2014
Pseudomonas putida GB-1 is a Mn(II)-oxidizing bacterium that produces pyoverdine-type siderophores (PVDs), which facilitate the uptake of Fe(III) but also influence MnO2 formation.
Sung-Woo eLee, Dorothy Lundquist Parker, Kati eGeszvain, Bradley M. Tebo   +3 more
doaj   +1 more source