Results 121 to 130 of about 21,525 (213)

Species‐Specific Optimisation and Environmental Regulation of Biofilm Formation in Enterobacter cloacae: Inhibitory Role of Glucose in Biofilm Development

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 3, June 2026.
This study demonstrates that mild salinity stress (1%–2% NaCl) significantly enhances biofilm formation in Enterobacter cloacae. Using a standardised 96‐well microtiter plate assay, we optimised in vitro biofilm quantification and classification, providing a reproducible framework for studying environmental and clinical biofilm development mechanisms ...
Srishti Singh   +6 more
wiley   +1 more source

Shigella flexneri Adherence Factor Expression in In Vivo-Like Conditions

open access: yesmSphere, 2019
The Shigella species are Gram-negative, facultative intracellular pathogens that invade the colonic epithelium and cause significant diarrheal disease.
Rachael B. Chanin   +12 more
doaj   +1 more source

Modulation of Quorum Sensing and Virulence Gene Expression in Escherichia coli by Extracts of Physalis alkekengi

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Root extracts of Physalis alkekengi were examined for activity against multidrug‐resistant (MDR) Escherichia coli. The ethanolic extract suppressed bacterial growth, lowered biofilm formation by ~63%, and markedly reduced expression of luxS and fimH. Findings highlight P.
Mansoureh Esfandiyari Doolaby   +2 more
wiley   +1 more source

Analysis of type 1 fimbriae expression in verotoxigenic Escherichia coli: a comparison between serotypes O157 and O26.

open access: yes, 2001
Previous research has shown that verotoxin-producing Escherichia coli (VTEC) O157 strains appear unable to express type 1 fimbriae although other serotypes such as O26 and O118 can. This study has investigated the molecular basis of this difference.
Gally, David L.   +5 more
core   +1 more source

Frequency of P and type 1 fimbriae-encoding genes among uropathogenic Escherichia coli isolated from hospitalized patients in Qazvin and Karaj hospitals

open access: yesThe Journal of Qazvin University of Medical Sciences, 2015
Background: Escherichia coli (E. coli) is the most important cause of urinary tract infections in hospitalized patients especially in intensive care unit (ICU). Colonization of E.
M. Mahdikhani   +3 more
doaj  

Conditional expression of flagellar motility, curli fimbriae, and biofilms in Shiga toxin- producing Escherichia albertii

open access: yesFrontiers in Microbiology
Escherichia albertii is an emerging foodborne pathogen. We previously reported that some avian Shiga toxin-producing E. albertii strains exhibited higher or comparable cytotoxicity in Vero-d2EGFP cells with several enterohemorrhagic E.
Michelle Qiu Carter   +2 more
doaj   +1 more source

Random Mutagenesis in Porphyromonas gingivalis Enables Isolation of Mutants With Enhanced Secreted Protease Activity

open access: yesMolecular Oral Microbiology, Volume 41, Issue 3, Page 158-164, June 2026.
ABSTRACT Porphyromonas gingivalis is a key pathogen in periodontitis, with secreted proteases as major virulence factors. We developed a screening method to generate and identify P. gingivalis mutants with elevated protease activity. Mutations were induced using the mutagens 2,6‐diaminopurine (2,6‐DAP) or ethyl methanesulfonate (EMS), and the ...
Takeru Nakabayashi   +2 more
wiley   +1 more source

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