Abstract
ONE of the earliest recognizable changes in plastid fine structure after exposure of etiolated leaves to high light intensity is the disappearance of the vesicular centre (prolamellar body) and formation of concentric layers of vesicles1,2. A similar structural change was reported for plastids of etiolated leaves after illumination for 24 h with fluorescent light of 400 ft.-candles at 3° C (ref. 3), or after illumination with 2 ft.-candles at 26° C (ref. 4). All these conditions allow photoconversion of those chlorophyll precursors existing in the etiolated leaves, but are unfavourable to chlorophyll accumulation4. It has been suggested that the grouping of vesicles into ‘ring structures’ in plastids is connected with low chlorophyll content1,4,5.
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KLEIN, S. Phytylation of Chlorophyllide and the Formation of Lamellæ in Chloroplasts. Nature 196, 992–993 (1962). https://doi.org/10.1038/196992a0
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DOI: https://doi.org/10.1038/196992a0
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