These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: The biosynthesis of chlorophyll in greening barley (Hordeum vulgare). Is there a light-independent protochlorophyllide reductase?
    Author: Apel K, Motzkus M, Dehesh K.
    Journal: Planta; 1984 Nov; 161(6):550-4. PubMed ID: 24253925.
    Abstract:
    Recently, some evidence for the occurence of a light-independent protochlorophyllide-reducing enzyme in greening barley plants has been presented. In the present work this problem was reinvestigated. δ-[(14)C] Aminolevulinic acid was fed to isolated barley shoots from plants which had been preilluminated for various lengths of time. Porphyrins which had been synthesized during the dark incubation were analyzed by high-performance liquid chromatography. There was no evidence for a light-independent synthesis of chlorophyll(ide). The (14)C-labelled precursor was incorporated almost exclusively into protochlorophyllide. The reduction of labelled protochlorophyllide to chlorophyllide was strictly light-dependent. These results are not consistent with the existence of a light-independent protochlorophyllide-reductase in barley as proposed previously.
    [Abstract] [Full Text] [Related] [New Search]