BIOMAT Database Logo BIOMAT Database Logo

Tolerance to acid in pH 5.0-grown organisms of potentially pathogenic gram-negative bacteria. 1995

S A Nojoumi, and D G Smith, and R J Rowbury
Biology Department (Darwin), University College London, UK.

A wide range of potentially pathogenic species of Gram-negative bacteria were far more resistant to extreme acidity (pH 2.0-3.5) when cultured at pH 5.0 (habituated to acid) than after pH 7.0 culture. The differences were particularly great for Citrobacter spp., Enterobacter spp., Klebsiella spp. and for Vibrio parahaemolyticus; substantial habituation was also observed for Proteus mirabilis and Aeromonas formicans but the effect was less marked for Serratia marcescens and Acinetobacter calcoaceticus. Growth at pH 5.0 was substantially poorer than at pH 7.0 for most of the above species and also for Salmonella typhimurium and Salm. enteritidis but phosphate markedly enhanced growth at pH 5.0 for many of these species without affecting growth at pH 7.0.

UI MeSH Term Description Entries
D010710 Phosphates Inorganic salts of phosphoric acid. Inorganic Phosphate,Phosphates, Inorganic,Inorganic Phosphates,Orthophosphate,Phosphate,Phosphate, Inorganic
D010756 Phosphoric Acids Inorganic derivatives of phosphoric acid (H3PO4). Note that organic derivatives of phosphoric acids are listed under ORGANOPHOSPHATES. Pyrophosphoric Acids,Acids, Phosphoric,Acids, Pyrophosphoric
D002021 Buffers A chemical system that functions to control the levels of specific ions in solution. When the level of hydrogen ion in solution is controlled the system is called a pH buffer. Buffer
D006090 Gram-Negative Bacteria Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method. Gram Negative Bacteria
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D017680 Potassium Compounds Inorganic compounds that contain potassium as an integral part of the molecule. Compounds, Potassium

Related Publications

S A Nojoumi, and D G Smith, and R J Rowbury
Gram-negative plant pathogenic bacteria.
January 2001, Contributions to microbiology,
S A Nojoumi, and D G Smith, and R J Rowbury
Apparent absence of transferable resistance to nalidixic acid in pathogenic Gram-negative bacteria.
September 1977, The Journal of antimicrobial chemotherapy,
S A Nojoumi, and D G Smith, and R J Rowbury
Solvent tolerance in Gram-negative bacteria.
June 2012, Current opinion in biotechnology,
S A Nojoumi, and D G Smith, and R J Rowbury
Intestinal bacteria of newborn Ethiopian infants in relation to antibiotic treatment and colonisation by potentially pathogenic gram-negative bacteria.
January 1991, Scandinavian journal of infectious diseases,
S A Nojoumi, and D G Smith, and R J Rowbury
The lipooligosaccharides of pathogenic gram-negative bacteria.
January 1996, Critical reviews in microbiology,
S A Nojoumi, and D G Smith, and R J Rowbury
[Immunosuppressive effects of pathogenic gram-negative bacteria].
January 2001, Vestnik Rossiiskoi akademii meditsinskikh nauk,
S A Nojoumi, and D G Smith, and R J Rowbury
V-antigen homologs in pathogenic gram-negative bacteria.
May 2014, Microbiology and immunology,
S A Nojoumi, and D G Smith, and R J Rowbury
Mechanisms of solvent tolerance in gram-negative bacteria.
January 2002, Annual review of microbiology,
S A Nojoumi, and D G Smith, and R J Rowbury
[Pathogenic role of various pleomorphic gram-negative bacteria].
January 1976, Przeglad epidemiologiczny,
S A Nojoumi, and D G Smith, and R J Rowbury
Preparation of endotoxin from pathogenic gram-negative bacteria.
January 2000, Methods in molecular medicine,
Copied contents to your clipboard!