Premium
THE IN VIVO SPECTROPHOTOMETRIC ASSAY OF PHYTOCHROME IN TWO MATURE DICOTYLEDONOUS PLANTS*
Author(s) -
Kilsby C. A. H.,
Johnson C. B.
Publication year - 1982
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.1751-1097.1982.tb03843.x
Subject(s) - phytochrome , sinapis , botany , white light , biology , in vivo , chemistry , red light , physics , microbiology and biotechnology , optics , brassica
— Mature Sinapis alba L. and Impatiens parviflora DC. were treated with the herbicide norfiuorazon prior to development of the third or second leaf, respectively. This treatment yielded a partially bleached plant capable of normal growth and development. The bleached leaves were used for spectrophotometric phytochrome assay. In mature plants an almost constant level of phytochrome is maintained under continuous white light. The dark kinetics and the response of the phytochrome system to light of various qualities provide further evidence of the stable character of the phytochrome system.