Barley, maize, pea, soybean, and wheat exhibited differences in chlorophyll a/b ratio and chlorophyll-protein (CP) complex composition during the initial stages of chloroplast development. During the first hours of greening, the chlorophyll a/b ratios of barley, pea, and wheat were high (a/b >~ 8) a
Proteomic comparison of etioplast and chloroplast protein complexes
✍ Scribed by Matthias Plöscher; Veronika Reisinger; Lutz A. Eichacker
- Publisher
- Elsevier
- Year
- 2011
- Tongue
- English
- Weight
- 658 KB
- Volume
- 74
- Category
- Article
- ISSN
- 1874-3919
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✦ Synopsis
Angiosperms grown in darkness develop etioplasts during skotomorphogenesis. It is well known that etioplasts accumulate large quantities of protochlorophyllideoxidoreductase, are devoid of chlorophyll and are the site to assemble the photosynthetic machinery during photomorphogenesis. Proteomic investigation of the membrane protein complexes by Native PAGE, in combination with CyDye labelling and mass spectrometric analysis revealed that etioplasts and chloroplasts share a number of membrane protein complexes characteristic for electron transport, chlorophyll and protein synthesis as well as fatty acid biosynthesis. The complex regulatory function in both developmental states is discussed.
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