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Stimulation par la lumière rouge lointain de la synthèse de la δ‐aminolévulinate déshydratase des cotylédons de radis
Author(s) -
Huault Claude,
Balangé Philippe Bruyant et Alain Pierre
Publication year - 1984
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1984.tb06358.x
Subject(s) - raphanus , cycloheximide , dehydratase , stimulation , chemistry , porphobilinogen synthase , de novo synthesis , biochemistry , enzyme , biology , protein biosynthesis , botany , endocrinology
Stimulation of de novo synthesis of δ‐aminolevulinate dehydralasc of radishes grown under far‐red light . Density labelling studies of δ‐aminolevulinate dehydratase (ALAD) in cotyledons of radish ( Raphanus sativus L. cv. Longue Rave Saumonée) seedlings demonstrate that far‐red light stimulates de novo synthesis of ALAD and that the turn‐over of this enzyme is very poor. Cycloheximide reduces considerably both the increase of ALAD activity and the incorporation of deuterium in ALAD, which indicates that ALAD synthesis depends upon cytoplasmic ribosomes.