title: Signal transduction controlling the blue- and red-light mediated gene expression of S-adenosylmethionine decarboxylase in Pharbitis nil.
abstract: The signal transduction processes involved in the regulation of SAMDC gene expression by blue and red light were examined using pharmacological inhibitors of signalling pathways. Calcium and calmodulin positively regulated SAMDC gene expression in red light, whereas in blue light they regulated negatively. These results indicate that calcium homeostasis is involved in both red and blue light induction of SAMDC expression. Both signal transduction pathways also require new protein synthesis.
authors.affiliation: Division of Biology, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan.
authors.forename: Izumi
authors.initials: I
authors.lastname: Yoshida
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yamagata
authors.forename: Eiji
authors.initials: E
authors.lastname: Hirasawa
mesh_terms: D012437:Adenosylmethionine Decarboxylase / Q000235:genetics*; D002118:Calcium / Q000494:pharmacology; D002121:Calcium Channel Blockers / Q000494:pharmacology; D002147:Calmodulin / Q000494:pharmacology; D002227:Carbazoles / Q000494:pharmacology; D027722:Convolvulaceae / Q000201:enzymology* / Q000235:genetics; D003513:Cycloheximide / Q000494:pharmacology; D004791:Enzyme Inhibitors / Q000494:pharmacology; D015971:Gene Expression Regulation, Enzymologic / Q000187:drug effects / Q000528:radiation effects; D026121:Indole Alkaloids; D008027:Light; D009543:Nifedipine / Q000494:pharmacology; D019319:Okadaic Acid / Q000494:pharmacology; D010834:Phytochrome / Q000528:radiation effects; D015398:Signal Transduction / Q000187:drug effects / Q000528:radiation effects*; D014268:Trifluoperazine / Q000494:pharmacology
chemical_list: D002121:Calcium Channel Blockers; D002147:Calmodulin; D002227:Carbazoles; D004791:Enzyme Inhibitors; D026121:Indole Alkaloids; D010834:Phytochrome; D019319:Okadaic Acid; D014268:Trifluoperazine; C049985:staurosporine aglycone; D003513:Cycloheximide; D012437:Adenosylmethionine Decarboxylase; D009543:Nifedipine; D002118:Calcium