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Effects of red, far‐red and blue light on the viscosity of the cytoplasm of wheat leaf cells
Author(s) -
Virgin Hemming I.
Publication year - 1987
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1987.tb06132.x
Subject(s) - cytoplasm , far red , red light , centrifugation , botany , biophysics , blue light , red cell , irradiation , viscosity , chemistry , biology , biochemistry , optics , materials science , physics , computer security , computer science , nuclear physics , composite material
The displacement by centrifugation of the cell contents of wheat ( Triticum aestivum L. cy. Weibull's Starke) was studied after various light treatments. In dark‐grown leaves the viscosity of the cytoplasm, measured as the time necessary to displace the cell contents, is low, but increases slowly during continuous red irradiation as well as after a short red pulse. The increase after a red light pulse can be nullified by a short far‐red irradiation which in itself has no effect. Unlike that found earlier for Elodea densa Casp., and verified in the present study, the cytoplasm of wheat leaves does not show any rapid response to blue light, not even after pretreatment with red light.