scholarly journals Deciphering the functions of the outer membrane porin OprBXo involved in virulence, motility, exopolysaccharide production, biofilm formation and stress tolerance in Xanthomonas oryzae pv. oryzae

2018 ◽  
Vol 19 (12) ◽  
pp. 2527-2542 ◽  
Author(s):  
Nahee Bae ◽  
Hye-Jee Park ◽  
Hanbi Park ◽  
Minyoung Kim ◽  
Sang-Wook Han
Keyword(s):  
Stress Tolerance ◽  
Outer Membrane ◽  
Biofilm Formation ◽  
Xanthomonas Oryzae ◽  
Exopolysaccharide Production ◽  
Outer Membrane Porin

scholarly journals Xanthomonas citrissp.citrirequires the outer membrane porin OprB for maximal virulence and biofilm formation

2016 ◽  
Vol 18 (5) ◽  
pp. 720-733 ◽  
Author(s):  
Florencia A. Ficarra ◽  
Carolina Grandellis ◽  
Estela M. Galván ◽  
Luis Ielpi ◽  
Regina Feil ◽  
...  
Keyword(s):  
Outer Membrane ◽  
Biofilm Formation ◽  
Outer Membrane Porin

scholarly journals Sialylation of Outer Membrane Porin Protein D: A Mechanistic Basis of Antibiotic Uptake inPseudomonas aeruginosa

2014 ◽  
Vol 13 (6) ◽  
pp. 1412-1428 ◽  
Author(s):  
Biswajit Khatua ◽  
Jeremy Van Vleet ◽  
Biswa Pronab Choudhury ◽  
Rama Chaudhry ◽  
Chitra Mandal
Keyword(s):  
Outer Membrane ◽  
Porin Protein ◽  
Outer Membrane Porin ◽  
Mechanistic Basis

scholarly journals Electroosmosis Dominates Electrophoresis of Antibiotic Transport Across the Outer Membrane Porin F

2020 ◽  
Vol 118 (11) ◽  
pp. 2844-2852 ◽  
Author(s):  
Jayesh A. Bafna ◽  
Sushil Pangeni ◽  
Mathias Winterhalter ◽  
M. Alphan Aksoyoglu
Keyword(s):  
Outer Membrane ◽  
Outer Membrane Porin

scholarly journals The ClpP Protease Is Required for the Stress Tolerance and Biofilm Formation in Actinobacillus pleuropneumoniae

PLoS ONE ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. e53600 ◽  
Author(s):  
Fang Xie ◽  
Yanhe Zhang ◽  
Gang Li ◽  
Long Zhou ◽  
Siguo Liu ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Biofilm Formation ◽  
Actinobacillus Pleuropneumoniae

scholarly journals Trk2 Potassium Transport System in Streptococcus mutans and Its Role in Potassium Homeostasis, Biofilm Formation, and Stress Tolerance

2016 ◽  
Vol 198 (7) ◽  
pp. 1087-1100 ◽  
Author(s):  
Gursonika Binepal ◽  
Kamal Gill ◽  
Paula Crowley ◽  
Martha Cordova ◽  
L. Jeannine Brady ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Streptococcus Mutans ◽  
Transport System ◽  
Biofilm Formation ◽  
Cellular Response ◽  
Pathogenic Bacteria ◽  
Transport Systems ◽  
Content Type ◽  
Growth And Survival ◽  
Dental Biofilm

ABSTRACTPotassium (K+) is the most abundant cation in the fluids of dental biofilm. The biochemical and biophysical functions of K+and a variety of K+transport systems have been studied for most pathogenic bacteria but not for oral pathogens. In this study, we establish the modes of K+acquisition inStreptococcus mutansand the importance of K+homeostasis for its virulence attributes. TheS. mutansgenome harbors four putative K+transport systems that included two Trk-like transporters (designated Trk1 and Trk2), one glutamate/K+cotransporter (GlnQHMP), and a channel-like K+transport system (Kch). Mutants lacking Trk2 had significantly impaired growth, acidogenicity, aciduricity, and biofilm formation. [K+] less than 5 mM eliminated biofilm formation inS. mutans. The functionality of the Trk2 system was confirmed by complementing anEscherichia coliTK2420 mutant strain, which resulted in significant K+accumulation, improved growth, and survival under stress. Taken together, these results suggest that Trk2 is the main facet of the K+-dependent cellular response ofS. mutansto environment stresses.IMPORTANCEBiofilm formation and stress tolerance are important virulence properties of caries-causingStreptococcus mutans. To limit these properties of this bacterium, it is imperative to understand its survival mechanisms. Potassium is the most abundant cation in dental plaque, the natural environment ofS. mutans. K+is known to function in stress tolerance, and bacteria have specialized mechanisms for its uptake. However, there are no reports to identify or characterize specific K+transporters inS. mutans. We identified the most important system for K+homeostasis and its role in the biofilm formation, stress tolerance, and growth. We also show the requirement of environmental K+for the activity of biofilm-forming enzymes, which explains why such high levels of K+would favor biofilm formation.

scholarly journals Sialic Acid Transport in E. coli: Role of Outer Membrane Porin NanC

2011 ◽  
Vol 100 (3) ◽  
pp. 577a
Author(s):  
Janhavi Giri ◽  
John M. Tang ◽  
Christophe Wirth ◽  
Caroline M. Peneff ◽  
Tilman Schirmer ◽  
...  
Keyword(s):  
Sialic Acid ◽  
Outer Membrane ◽  
Acid Transport ◽  
E Coli ◽  
Outer Membrane Porin
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