The concentration-determined and population-specific antimicrobial effects of free nitrous acid on Pseudomonas aeruginosa PAO1

Verfasser / Beitragende:
[Shu-Hong Gao, Lu Fan, Zhiguo Yuan, Philip Bond]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/5(2015-03-01), 2305-2312
Format:
Artikel (online)
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024 7 0 |a 10.1007/s00253-014-6211-8  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-014-6211-8 
245 0 4 |a The concentration-determined and population-specific antimicrobial effects of free nitrous acid on Pseudomonas aeruginosa PAO1  |h [Elektronische Daten]  |c [Shu-Hong Gao, Lu Fan, Zhiguo Yuan, Philip Bond] 
520 3 |a There is great potential to use free nitrous acid (FNA/HNO2), the protonated form of nitrite, as an antimicrobial agent due to its bacteriostatic and bactericidal effects on a range of microorganisms. Here, we determine the effects of FNA on the opportunistic pathogen Pseudomonas aeruginosa PAO1, a well-studied denitrifier capable of nitrate/nitrite reduction in its anaerobic respiration. It was seen that lower FNA concentrations in the range of 0.1 to 0.2mgN/L exerted a temporary inhibitory effect on the growth of P. aeruginosa, while respiratory inhibition was not detected until an FNA concentration of 1.0mgN/L was applied. The FNA concentration of 5.0mgN/L caused complete cell killing and likely cell lysis. The results suggest concentration-related and multiple antimicrobial effects of FNA. Differential killing of FNA in the P. aeruginosa subpopulations was detected, suggesting intrastrain heterogeneity, and does not support the idea of specific concentrations of FNA bringing about bacteriostatic and bactericidal effects on this species. A delayed recovery from FNA treatment suggested that FNA caused cell damage which required repair prior to the organism showing cell growth. The results of the study provide insight of the inhibitory and biocidal mechanisms of FNA on this important microorganism. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Free nitrous acid  |2 nationallicence 
690 7 |a Bacteriostatic  |2 nationallicence 
690 7 |a Bactericidal  |2 nationallicence 
690 7 |a Pseudomonas aeruginosa PAO1  |2 nationallicence 
700 1 |a Gao  |D Shu-Hong  |u Advanced Water Management Centre, The University of Queensland, Level 4 Gehrmann Building, St. Lucia, 4072, Brisbane, QLD, Australia  |4 aut 
700 1 |a Fan  |D Lu  |u Advanced Water Management Centre, The University of Queensland, Level 4 Gehrmann Building, St. Lucia, 4072, Brisbane, QLD, Australia  |4 aut 
700 1 |a Yuan  |D Zhiguo  |u Advanced Water Management Centre, The University of Queensland, Level 4 Gehrmann Building, St. Lucia, 4072, Brisbane, QLD, Australia  |4 aut 
700 1 |a Bond  |D Philip  |u Advanced Water Management Centre, The University of Queensland, Level 4 Gehrmann Building, St. Lucia, 4072, Brisbane, QLD, Australia  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/5(2015-03-01), 2305-2312  |x 0175-7598  |q 99:5<2305  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-014-6211-8  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-014-6211-8  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Gao  |D Shu-Hong  |u Advanced Water Management Centre, The University of Queensland, Level 4 Gehrmann Building, St. Lucia, 4072, Brisbane, QLD, Australia  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Fan  |D Lu  |u Advanced Water Management Centre, The University of Queensland, Level 4 Gehrmann Building, St. Lucia, 4072, Brisbane, QLD, Australia  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yuan  |D Zhiguo  |u Advanced Water Management Centre, The University of Queensland, Level 4 Gehrmann Building, St. Lucia, 4072, Brisbane, QLD, Australia  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Bond  |D Philip  |u Advanced Water Management Centre, The University of Queensland, Level 4 Gehrmann Building, St. Lucia, 4072, Brisbane, QLD, Australia  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/5(2015-03-01), 2305-2312  |x 0175-7598  |q 99:5<2305  |1 2015  |2 99  |o 253