Results 81 to 90 of about 8,137 (202)

Dietary and phytogenic inclusion effects on the broiler chicken cecal ecosystem

Frontiers in Animal Science, 2023
Dietary modulation in broilers is crucial for the establishment of beneficial microbiota and, subsequently, the promotion of intestinal health. In this trial, a 2 × 2 factorial design was used with two different specifications with respect to dietary ...
Irida Palamidi, Vasileios V. Paraskeuas, Konstantinos C. Mountzouris   +2 more
doaj   +1 more source

Centesimal Composition, Bioactive Compounds, and Antimicrobial Properties of White (Hylocereus undulatus) and Red (Hylocereus polyrhizus) Pitayas

Journal of Food Science, Volume 91, Issue 3, March 2026.
ABSTRACT This study investigated the centesimal composition, physicochemical properties, bioactive compounds, antimicrobial activity, and anti‐quorum sensing (QS) potential of red pulp (RP; Hylocereus polyrhizus) and white pulp (WP; Hylocereus undulatus) pitayas.
Raíssa Soares Gomes, Alice Mendes de Carvalho, Emília Maria França Lima, Patrícia Aparecida Pimenta Pereira, Isabela Pereira Gouveia, Neuza Mariko Aymoto Hassimotto, Uelinton Manoel Pinto, Luciana Rodrigues da Cunha   +7 more
wiley   +1 more source

AinS and a new family of autoinducer synthesis proteins [PDF]

Journal of Bacteriology, 1995
In Vibrio fischeri, the autoinducer N-3-oxohexanoyl-L-homoserine lactone (AI-1) governs the cell density-dependent induction of the luminescence operon via the LuxR transcriptional activator. The synthesis of AI-1 from bacterial metabolic intermediates is dependent on luxI. Recently, we found a second V.
L, Gilson, A, Kuo, P V, Dunlap
openaire   +2 more sources

Biofilm Associated Persistence and Drug Tolerance in Mycobacteria Within Host Microenvironments

APMIS, Volume 134, Issue 3, March 2026.
ABSTRACT Biofilms formed by mycobacteria, particularly Mycobacterium tuberculosis (Mtb), represent a major challenge in tuberculosis (TB) treatment due to their highly organized structure and their capacity to induce phenotypic drug tolerance. These three‐dimensional bacterial aggregates are embedded in a self‐produced extracellular matrix that ...
Lourdes Serrano Garcia, Cesar Augusto Roque‐Borda, Fernando Rogério Pavan, Marlus Chorilli   +3 more
wiley   +1 more source

Transcriptional downregulation of agr expression in Staphylococcus aureus during growth in human serum can be overcome by constitutively active mutant forms of the sensor kinase AgrC [PDF]

, 2013
The temporal and cell density-dependent regulation of expression of virtually all the Staphylococcus aureus virulon is under the control of the agr (accessory gene regulatory) operon.
Edwards, AM, James, EH, Wigneshweraraj, S   +2 more
core   +1 more source

Frequency modulation of a bacterial quorum sensing response

Nature Communications, 2022
Quorum-sensing bacteria produce and secrete autoinducers that trigger a behavioral change in the population when reaching a certain threshold. Here, Bettenworth et al.
Vera Bettenworth, Simon van Vliet, Bartosz Turkowyd, Annika Bamberger, Heiko Wendt, Matthew McIntosh, Wieland Steinchen, Ulrike Endesfelder, Anke Becker   +8 more
doaj   +1 more source

Mechanistic Insights for Microbiome Application in Plant Disease Resistance

Molecular Plant Pathology, Volume 27, Issue 3, March 2026.
This review summarises the mechanisms underlying plant‐guided microbiome modulation and probiotic‐mediated disease suppression. Additionally, it highlights the challenges to be addressed for a better microbiome application of disease resistance in sustainable agriculture and proposes possible strategies. Figure was created with BioRender.
Jiakang Yin
wiley   +1 more source

Analysis of Autoinducer-2 Quorum Sensing in Yersinia pestis [PDF]

Infection and Immunity, 2013
ABSTRACT The autoinducer-2 (AI-2) quorum-sensing system has been linked to diverse phenotypes and regulatory changes in pathogenic bacteria. In the present study, we performed a molecular and biochemical characterization of the AI-2 system in Yersinia pestis , the causative agent of plague. In strain CO92,
Jing, Yu, Melissa L, Madsen, Michael D, Carruthers, Gregory J, Phillips, Jeffrey S, Kavanaugh, Jeff M, Boyd, Alexander R, Horswill, F Chris, Minion   +7 more
openaire   +2 more sources

Cyclic Dipeptides Mediating Quorum Sensing and Their Biological Effects in Hypsizygus Marmoreus

Biomolecules, 2020
A novel quorum sensing (QS) system was discovered in Serratia odorifera, the symbiotic bacterium of Hypsizygus marmoreus. This system uses cyclo(Pro-Phe), cyclo(Pro-Tyr), cyclo(Pro-Val), cyclo(Pro-Leu), cyclo(Tyr-Leu), and cyclo(Tyr-Ile) as autoinducers.
Shu-Jing Sun, Yun-Chao Liu, Cai-Hong Weng, Shi-Wei Sun, Fan Li, Hui Li, Hu Zhu   +6 more
doaj   +1 more source

MexEF-OprN efflux pump exports the Pseudomonas quinolone signal (PQS) precursor HHQ (4-hydroxy-2-heptylquinoline). [PDF]

PLoS ONE, 2011
Bacterial cells have evolved the capacity to communicate between each other via small diffusible chemical signals termed autoinducers. Pseudomonas aeruginosa is an opportunistic pathogen involved, among others, in cystic fibrosis complications. Virulence
Martin G Lamarche, Eric Déziel
doaj   +1 more source