Biogenesis of thylakoid membranes with emphasis on the process in Chlamydomonas |
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Authors: | J Kenneth Hoober Richard A White Dawn B Marks Jerome L Gabriel |
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Institution: | (1) Department of Botany, Arizona State University, 85287-1601 Tempe, AZ, USA;(2) Center for the Study of Early Events in Photosynthesis, Arizona State University, 85287-1601 Tempe, AZ, USA;(3) Department of Biochemistry, Temple University School of Medicine, 19140 Philadelphia, PA, USA |
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Abstract: | Recent results obtained by electron microscopic and biochemical analyses of greening Chlamydomonas reinhardtii y1 suggest that localized expansion of the plastid envelope is involved in thylakoid biogenesis. Kinetic analyses of the assembly of light-harvesting complexes and development of photosynthetic function when degreened cells of the alga are exposed to light suggest that proteins integrate into membrane at the level of the envelope. Current information, therefore, supports the earlier conclussion that the chloroplast envelope is a major biogenic structure, from which thylakoid membranes emerge. Chloroplast development in Chlamydomonas provides unique opportunities to examine in detail the biogenesis of thylakoids.Abbreviations Rubisco
ribulose bisphosphate carboxylase/oxygenase
- CAB
Chl a/b-binding (proteins)
- Chlide
chlorophyllide
- LHC I
light-harvesting complex of PS I
- LHC II
light-harvesting complex of PS II
- Pchlide
protochlorophyllide |
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Keywords: | Chlamydomonas reinhardtii chlorophyllide chloroplasts protochlorophyllide plastids |
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