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Factors affecting pH‐dependent photo‐inhibition of division in Euglena gracilis
Author(s) -
Cook J. R.,
Kaiser H.
Publication year - 1973
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.1040820317
Subject(s) - euglena gracilis , photosynthesis , euglena , cell division , mutant , division (mathematics) , chemistry , light intensity , carbon fibers , biophysics , botany , biochemistry , biology , cell , chloroplast , materials science , optics , gene , physics , arithmetic , mathematics , composite number , composite material
Visible light of moderate intensity (1200 ft‐cd) can severely inhibit cell division of a non‐photosynthetic mutant of Euglena gracilis when growth is supported by butanol, ethanol, or fumarate as sole carbon source. The degree of inhibition is pH dependent, being greatest at pH 4 to 5. A wide variety of other carbon sources permitted growth in the light without inhibition.