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Influence of culture pH on photo‐inhibition of division in Euglena gracilis
Author(s) -
Cook J. R.
Publication year - 1971
Publication title -
journal of cellular physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.529
H-Index - 174
eISSN - 1097-4652
pISSN - 0021-9541
DOI - 10.1002/jcp.1040780215
Subject(s) - euglena gracilis , euglena , light intensity , chemistry , growth inhibition , botany , blue light , biology , biophysics , biochemistry , cell growth , optics , gene , physics , chloroplast
In the dark, growth rates of Euglena gracilis were independent of culture pH between the limits of three to eight. Visible light of moderate intensity inhibited growth rates, with the degree of inhibition being markedly pH dependent. The most severe inhibition was observed at pH 4 to 5, with little or no inhibition at pH 3 or above pH 6.8 at the light intensity used (400 foot‐candles).