Premium
THE DIFFERENTIATION OF BACTERIAL SPECIES BY PAPER CHROMATOGRAPHY. II. LACTOBACILLI AND STREPTOCOCCI; THE EFFECT OF AGE OF CULTURE
Author(s) -
BERRIDGE N. J.,
CHEESEMAN G. C.,
MATTICK A. T. R.,
BOTTAZZI V.
Publication year - 1957
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1957.tb00092.x
Subject(s) - microbiological culture , biology , consistency (knowledge bases) , microbiology and biotechnology , bacteria , chemistry , mathematics , genetics , geometry
SUMMARY: The pictures obtained when extracts of intact bacterial cells are subjected to paper chromatography show some small variations according to the age of the culture. Larger variations occur if a culture is very old. Satisfactory consistency and differentiation of species can be achieved by harvesting cells when, or soon after, the rate of increase of optical density in the cultures begins to decline.