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Photogeneration of a bioelectric field by red and far‐red irradiation in soybean hypocotyls
Author(s) -
TANADA TAKLJMA
Publication year - 1983
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/1365-3040.ep11580548
Subject(s) - irradiation , glycine , phytochrome , far red , hypocotyl , electrometer , biophysics , chemistry , red light , botany , optics , biology , biochemistry , physics , amino acid , nuclear physics
. Changes in the bioelectric field potential at the apical end of dark‐grown soybean ( Glycine max) hypocotyls after exposure to several wavelengths of light have been monitored with an electrometer. A small dose of 660 nm radiation brings about a rapid positive rise in the potential. A following small dose at 760 nm prevents the increase, suggesting a phytochrome action. Pre‐irradiation with 660 nm enables a subsequent larger dose of 760 nm, which by itself is without effect, to elicit a delayed rise in the potential. A large dose at 710 nm induces a delayed increase in the field potential. The increase is prevented by a following dose at 550 nm, but not at 660 nm.