Open AccessBuffering capacity and H + membrane conductance of Gram‐negative bacteria
Author(s) -
Rius Núria,
Solé Montserrat,
Francia Alicia,
Lorén José G.
Publication year - 1995
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1995.tb07706.x
Subject(s) - proteus mirabilis , bacteria , aeromonas hydrophila , enterobacteriaceae , escherichia coli , microbiology and biotechnology , gram negative bacteria , conductance , alcaligenes , biology , pseudomonas aeruginosa , chemistry , pseudomonas , biochemistry , combinatorics , genetics , mathematics , gene
Buffering capacity and membrane H + conductance were examined in seven Gram‐negative species: Aquaspirillum serpens, Pseudomonas aeruginosa, Alcaligenes faecalis, Escherichia coli, Salmonella typhimurium, Proteus mirabilis and Aeromonas hydrophila . All strains of Enterobacteriaceae studied here showed a decrease in both parameters as the external pH increased, over the pH range studied. The other four species presented an increase in buffering capacity and membrane conductance to protons as the external pH increased from 5.5 to 7.0.