Open AccessThe effect of pH on the passive proton conductance of Bacillus acidocaldarius
Author(s) -
Guffanti Arthur A.,
Hou Ernest
Publication year - 1987
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.1574-6968.1987.tb02210.x
Subject(s) - conductance , proton , chemistry , bacillus (shape) , microbiology and biotechnology , biology , physics , condensed matter physics , quantum mechanics
The proton conductance and buffering capacity of Bacillus acidocaldarius , an organism that grows optimally at pH 3.5, were measured by an acid‐pulse method. Conductance increased as the external pH was lowered from 6.0 to 3.5. The uncoupler CCCP increased the proton conductance, but became less effective as the pH was lowered.