Redox‐control of chlorophyll biosynthesis mainly depends on thioredoxins
نویسندگان
چکیده
منابع مشابه
Chlorophyll Biosynthesis.
A leaf with 70 million cells houses .v5 x 109 chloroplasts, each containing m600 million molecules of chlorophyll (Simpson and Knoetzel, 1995). These 10’8 chlorophyll molecules, all of which are bound to proteins of the photosynthetic membranes, harvest the sunlight. Approximately 250 to 300 of them transfer the absorbed light energy through neighboring pigments to the “special pair” chlorophyl...
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Herbicidal Action of Aminotriazol, Wheat and Oat Seedlings, Chlorophyll, Phytol, Geranylgeraniol, Dihydrogeranylgeraniol, Tetrahydrogeranylgeraniol Treatment of wheat caryops with 3-amino-l,2,4-triazol followed by dark germination leads to phytol deficiency (based on the chlorophyll content) during the subsequent greening process in the light. The analysis of the pigment fraction reveales the p...
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The esterification of various chlorophyllides with geranylgeranyl diphosphate was investigated as catalyzed by the enzyme chlorophyll synthetase. The enzyme source was an etioplast membrane fraction from etiolated oat seedlings (Avena sativa L.). The following chlorophyllides were prepared from the corresponding chlorophylls by the chlorophyllase reaction: chlorophyllide a (2) and b (4), bacter...
متن کاملGenetic Control of Chlorophyll Biosynthesis in Chlamydomonas
In this report we describe two nonallelic Mendelian protoporphyrin accumulating mutants br(s)-1 and br(c)-1. Results of experiments with these mutants lead us to postulate that porphyrin biosynthesis branches into light and dark steps between protoporphyrin-IX and magnesium protoporphyrin. We hypothesize that the br(c) locus controls a dark step while the br(s) locus either controls a step in t...
متن کاملRegulation of Chlorophyll Biosynthesis in Angiosperms.
Light controls plant growth and development in a pleiotropic manner. For example, light dictates a pattern of gene expression that leads to photomorphogenesis (Kendrick and Kronenberg, 1994). In the absence of light, an alternative developmental process, skotomorphogenesis, takes place. Photomorphogenesis and skotomorphogenesis are controlled by severa1 different photoreceptors, such as Pr and ...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 2018
ISSN: 0014-5793,1873-3468
DOI: 10.1002/1873-3468.13216