Summary
The permeability of the plastid envelope during the development of Avena sativa plastids was investigated by light scattering and uptake of various labelled compounds (malate, succinate, glutamate, α-ketoglutarate, citrate, glycine, sucrose). The results presented show that a primary event during greening is a change in permeability, thereby allowing an increased transport of metabolites across the membranes of very early etio-chloroplast stages. The results are discussed in view of an adaption of the plastid envelope permeability to the changing requirements of externally synthesized precursors and intermediates during development.
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Abbreviations
- HEPES:
-
N-2-Hydroxyethylpiperazine-N′-2-ethane-sulfonic acid
- MES:
-
2(N-Morpholino)ethane-sulfonic acid
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Hampp, R., Schmidt, H.W. Changes in envelope permeability during chloroplast development. Planta 129, 69–73 (1976). https://doi.org/10.1007/BF00390916
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DOI: https://doi.org/10.1007/BF00390916