DOI: 10.1042/bj1890125. Light modulation of the activity of protochlorophyllide reductase

Light modulation of the activity of protochlorophyllide reductase

10.1042/bj1890125

Crossref journal-article

Portland Press Ltd.

Biochemical Journal (288)

Abstract

Illumination of etiolated plants effects the activity of protochlorophyllide reductase (NADPH-protochlorophyllide oxidoreductase) in the plastids. Constant illumination or a 2-min light-triggering of etiolated plants leads to an approx. 80% decrease in activity of the enzyme, a change that can be reversed by returning the plants to darkness. The change in activity results from an alteration of the Vmax. rather than Km. Despite the fact that exogenous pigments effect the activity of the enzyme in vitro, no correlation could be drawn between the concentrations of pigments in vivo and activity of the enzyme.

Authors 2

R E Mapleston (first)
W T Griffiths (additional)

References 0 Referenced 63

None

Dates

Type	When
Created	10 years ago (Aug. 10, 2015, 4:22 p.m.)
Deposited	3 years, 9 months ago (Nov. 26, 2021, 2:54 p.m.)
Indexed	3 weeks ago (Aug. 6, 2025, 9:17 a.m.)
Issued	45 years, 1 month ago (July 1, 1980)
Published	45 years, 1 month ago (July 1, 1980)
Published Print	45 years, 1 month ago (July 1, 1980)

Funders 0

None

BibTeX

@article{Mapleston_1980, title={Light modulation of the activity of protochlorophyllide reductase}, volume={189}, ISSN={0264-6021}, url={http://dx.doi.org/10.1042/bj1890125}, DOI={10.1042/bj1890125}, number={1}, journal={Biochemical Journal}, publisher={Portland Press Ltd.}, author={Mapleston, R E and Griffiths, W T}, year={1980}, month=jul, pages={125–133} }

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