Premium
RED LIGHT‐INDUCED ACCUMULATION OF EUGLENA GRACILIS
Author(s) -
Checcucci A.,
Colombetti G.,
Carratore G. Del,
Ferrara R.,
Lenci F.
Publication year - 1974
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1974.tb06502.x
Subject(s) - euglena gracilis , euglena , phototaxis , action spectrum , red light , biophysics , quenching (fluorescence) , oxygen evolution , chemistry , botany , chloroplast , photochemistry , biology , fluorescence , biochemistry , optics , physics , electrode , electrochemistry , gene
— It has been shown that green cells of Euglena gracilis accumulate under red light. The action spectrum of this response has been determined. Its shape and the results of regreening experiments clearly indicate a role of chlorophyll. The quenching effect of chlorophenyl–dimethylurea and NH 2 OH demonstrate that this cell accumulation is not directly light‐induced, as in the case of phototaxis, but is due to an effect of oxygen, the evolution of which is stimulated by light.