Open AccessPhytochrome-induced Increase of Fluorescein Translocation in Mung Bean Hypocotyls
Author(s) -
T. Tanada
Publication year - 1978
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.62.1.105
Subject(s) - hypocotyl , phytochrome , vigna , chromosomal translocation , radiata , irradiation , biophysics , fluorescein , mung bean , biology , far red , chemistry , botany , red light , biochemistry , horticulture , fluorescence , physics , optics , nuclear physics , gene
Moderate doses of red (660 nanometer) irradiation cause a rapid increase in the translocation of fluorescein in dark-grown mung bean hypocotyl (Vigna radiata L.) segments. The increase fails to appear following large doses of red (660 nanometers) irradiation. The red induced increase is prevented by a subsequent far red (730 nanometer) irradiation. Reversibility suggests the participation of phytochrome in the process. The increase in translocation is attributed to the generation of a positive electrostatic charge in the plasma membrane by some action of phytochrome on membrane molecules.