title: [Light-mediated de-novo synthesis of δ-aminolaevulinate dehydratase in isolated Avena etioplasts].
abstract: A light dependent increase of the activity of δ-aminolaevulinate dehydratase (E.C. 4.2.1.24) in isolated etioplasts of Avena sativa L. was shown. This increase can be assumed to be due to a de-novo synthesis of the enzyme. Chloramphenicol was found to inhibit this synthesis, whereas cycloheximide did not have any effect. Illumination with red light (660 nm) was followed by the same increase of porphobilinogen production as illumination with white light; far-red (731 nm) did not induce such an effect. It is concluded that a phytochrome-mediated mechanism is involved in the induction of δ-aminolaevulinate dehydratase synthesis.
authors.affiliation: Institut für Botanik und Mikrobiologie, Technische Universität, Arcisstraße 21, D-8000, München 2, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Hampp
authors.forename: H
authors.initials: H
authors.lastname: Ziegler