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Light Control of Plastogenesis and Ribulosebisphosphate Carboxylase Levels in Mustard Seedling Cotyledons

Overview
Journal Planta
Specialty Biology
Date 2014 Jan 16
PMID 24425179
Citations 9
Authors
S Frosch
R Bergfeld
H Mohr
Affiliations
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Abstract

We have studied the problem whether the phytochrome-mediated accumulation of ribulosebisphosphate carboxylase ("carboxylase"; EC 4.1.1.39) in the cotyledons of sinapis alba L. is related to size, ultrastructure, or organization of the plastid compartment. We have shown that under different light conditions (e.g. continuous far-red light, continuous white light) which lead to conspicuously different plastids the time course of the enzyme levels remains precisely the same. It is concluded that the onset and the rate of carboxylase accumulation is not related to the organizational state of the plastid compartment as discernible under the electron microscope.

Citing Articles

Ribulose bisphosphate carboxylase capacity and chlorophyll content in developing seedlings of Chenopodium rubrum L. growing under light of different qualities and fluence rates.

Frosch S, Bergfeld R, Mehnert C, Wagner E, Greppin H Photosynth Res. 2014; 7(1):41-57.

PMID: 24443012 DOI: 10.1007/BF00032921.

The capacity of chlorophyll-a biosynthesis in the mustard seedling cotyledons as modulated by phytochrome and circadian rhythmicity.

Gehring H, Kasemir H, Mohr H Planta. 2014; 133(3):295-302.

PMID: 24425265 DOI: 10.1007/BF00380692.

Regulation of enzyme levels by phytochrome in mustard cotyledons: Multiple mechanisms?.

Frosch S, Drumm H, Mohr H Planta. 2014; 136(2):181-6.

PMID: 24420325 DOI: 10.1007/BF00396196.

Inhibition of carotenoid biosynthesis by the herbicide SAN 9789 and its consequences for the action of phytochrome on plastogenesis.

Frosch S, Jabben M, Bergfeld R, Kleinig H, Mohr H Planta. 2013; 145(5):497-505.

PMID: 24317867 DOI: 10.1007/BF00380105.

Photochrome-mediated regulation of messenger RNAs for the small subunit of ribulose 1, 5-bisphosphate carboxylase and the light-harvesting chlorophyll a/b-protein in Lemna gibba.

Tobin E Plant Mol Biol. 2013; 1(1):35-51.

PMID: 24317819 DOI: 10.1007/BF00023012.

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