1887

Abstract

In the symbiotic relationship between and alfalfa (), the bacteria are enclosed within the plant cell by a membrane that may function like a plant vacuolar membrane and maintain a pH between 5·5 and 6·0. Free-living 104A14 is sensitive to pH in this range and its sensitivity was influenced by the presence of acetate and other monocarboxylic acids. can grow at pH 6·0 in 3 mM succinate but does not grow at pH 6·2 if 10 mM acetate is added. The combination of low pH and acetate is bacteriostatic. Measurement of internal pH (pH) using 14C-labelled benzoate as a permeant acid showed that growth inhibition occurs when pH falls below 7·15.

Loading

Article metrics loading...

/content/journal/micro/10.1099/13500872-140-5-1231
1994-05-01
2019-10-17
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/journal/micro/10.1099/13500872-140-5-1231
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error