Results 71 to 80 of about 1,127 (159)

Fluorescent Pseudomonad Pyoverdines Bind and Oxidize Ferrous Ion [PDF]

Applied and Environmental Microbiology, 1998
ABSTRACT Major pyoverdines from Pseudomonas fluorescens 2-79 (Pf-B), P. aeruginosa ATCC 15692 (Pa-C), and P. putida ATCC 12633 (Pp-C) were examined by absorption and fluorescence spectroscopic techniques to investigate the interaction between ferrous ion and ...
R, Xiao, W S, Kisaalita
openaire   +2 more sources

Peptide Arginases from Cryptic Pathways Install Ornithine Residues in Uncharacterized Members of Orphan RiPP Families

ChemBioChem, Volume 26, Issue 24, December 11, 2025.
The incorporation of the non‐proteinogenic amino acid ornithine into antibiotic peptides has shown potential in influencing antibacterial efficacy. Novel peptide arginases from cryptic ribosomally synthesized and post‐translationally modified peptide (RiPP) pathways are identified and found to incorporate ornithine residues into various peptide ...
Isabel P.‐M. Pfeiffer, Maria‐Paula Schröder, Panagiota‐Hanna Koutsandrea, Giovanni A. Vitale, Daniela Herrera‐Rosero, Christian Geibel, Daniel Petras, Jörn Piel, Anna L. Vagstad, Silja Mordhorst   +9 more
wiley   +1 more source

Pyoverdin is essential for virulence of Pseudomonas aeruginosa [PDF]

Infection and Immunity, 1996
The role of pyoverdin, the main siderophore in iron-gathering capacity produced by Pseudomonas aeruginosa, in bacterial growth in vivo is controversial, although iron is important for virulence. To determine the ability of pyoverdin to compete for iron with the human iron-binding protein transferrin, wild-type P. aeruginosa ATCC 15692 (PAO1 strain) and
J M, Meyer, A, Neely, A, Stintzi, C, Georges, I A, Holder   +4 more
openaire   +2 more sources

Biosynthesis of H2S and Siderophores Targeting Gram‐Negative Bacterial Resistance to Reactive Oxygen Species

Advanced Science, Volume 12, Issue 45, December 4, 2025.
Discover how Gram‐negative bacteria develop resistance to reactive oxygen species, and how scientists aim to overcome this challenge. Abstract Reactive oxygen species (ROS) are a promising alternative bactericide. However, it is questioned that bacteria can potentially develop resistance to ROS, similar to their resistance against antibiotics and ...
Congyang Mao, Wanyu Jin, Yiming Xiang, Yizhou Zhu, Jun Wu, Xiangmei Liu, Shuilin Wu, Wei Qiao, Kenneth M. C. Cheung, Kelvin Wai Kwok Yeung   +9 more
wiley   +1 more source

Characterization of beneficial properties of plant growth-promoting rhizobacteria isolated from sweet potato rhizosphere [PDF]

, 2009
Laboratory study was conducted to characterize the beneficial properties of plant growth-promoting rhizobacterial (PGPR) strains isolated from sweet potato rhizosphere.
Othman, Radziah, Saad, Mohd Said, Sijam, Kamaruzaman, Yasmin, Farzana   +3 more
core  

Selectivity of pyoverdine recognition by the FpvA receptor of Pseudomonas aeruginosa from molecular dynamics simulations [PDF]

, 2015
International audienceThe Gram-negative bacterium Pseudomonas aeruginosa, a ubiquitous human opportunistic pathogen, has developed resistances to multiple antibiotics.
Bouvier, Benjamin, Cézard, Christine, Sonnet, Pascal   +2 more
core   +3 more sources

Indole‐Acetic Acid Impairs Pseudomonas aeruginosa Virulence and Alters Lung Infection in Mice

MicrobiologyOpen, Volume 14, Issue 6, December 2025.
Screening for anti‐virulence activity exerted by tryptophan catabolites on laboratory and clinical strains of Pseudomonas aeruginosa showed that Indoleacetic acid (IAA) inhibits motility and pigment production, downregulates PQS gene expression, while increases oxidative stress sensitivity.
Carlos Eduardo Dias Igídio, Camila Bernardo Brito, Rafael de Oliveira Bezerra, Samantha Neves Oliveira, Cinthia Firmo Teixeira, Bárbara Maria de Amorim‐Santos, Allanis Cristiny Oliveira Andrade, Diego Lisboa Rios, Silvia Helena Sousa Pietra Pedroso, Simone Gonçalves dos Santos, Mauro Martins Teixeira, Daniele da Glória de Souza, Camila Pacheco Silveira Martins da Mata, Caio Tavares Fagundes   +13 more
wiley   +1 more source

Uncultured Members of the Oral Microbiome. [PDF]

, 2016
Around one-third of oral bacteria cannot be cultured using conventional methods. Some bacteria have specific requirements for nutrients while others may be inhibited by substances in the culture media or produced by other bacteria.
Rybalka, A, Thompson, H, Vartoukian, S, Wade, W   +3 more
core   +1 more source

Metagenomic Profiling and Genome‐Centric Analysis Reveal Iron Acquisition Systems in Cheese‐Associated Bacteria and Fungi

Environmental Microbiology, Volume 27, Issue 12, December 2025.
This study describes the diversity of iron acquisition systems in cheese microorganisms and provides information on the distribution of siderophore biosynthesis pathways in both bacteria and fungi, including poorly characterised species. ABSTRACT Cheese microbial communities are composed of diverse interacting microorganisms, including both inoculated ...
Sibylle Tabuteau, Vincent Hervé, Françoise Irlinger, Christophe Monnet   +3 more
wiley   +1 more source

Succinopyoverdins - a New Variety of the Pyoverdin Chromophore

Zeitschrift für Naturforschung C, 2000
Abstract Pseudomonas spp. of the fluorescent group produce siderophores (so-called pyoverdins) consisting of a peptide chain attached to a pyrimidoquinoline ring system which is derived from a condensation product of L-Dab and D-Tyr. Commonly several related compounds are found to accompany the pyoverdins having the same peptide chain ...
C, Lenz, C, Amann, G, Briskot, K, Taraz, H, Budzikiewicz   +4 more
openaire   +2 more sources