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FLUENCE‐RESPONSE RELATIONSHIP FOR PHOTOGENE EXPRESSION IN ETIOLATED PEA SEEDLINGS†
Author(s) -
Yoshida Kazuichi,
Takimoto Atsushi,
Sasaki Yukiko
Publication year - 1989
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.1751-1097.1989.tb04137.x
Subject(s) - fluence , etiolation , chloroplast , biology , phytochrome , protein subunit , gene , rubisco , gene expression , nuclear gene , photosystem i , microbiology and biotechnology , genetics , botany , biochemistry , chemistry , genome , enzyme , ion , red light , organic chemistry
Abstract— Fluence‐response relationships in transcript accumulation were investigated at various wavelengths for the following photogenes: the nuclear‐encoded small subunit gene of ribulose bisphosphate carboxylase/oxygenase (rbcS) , the nuclear‐encoded chlorophyll alb‐binding protein gene (Cab) , the chloroplast‐encoded large subunit gene of ribulose bisphosphate carboxylase/oxygenase (rbch) and the chloroplast‐encoded photosystem I A2 subunit gene (psaB). The fluence‐response curves for all genes obtained at all wavelengths showed a biphasic character suggesting the involvement of both very low fluence response and low fluence response mediated by phytochrome. The proportion responding in the very low fluence range differed with the gene, and was largest for rbcL followed by psaB, Cab and rbcS in this order.