Summary
Etioplasts were isolated from leaves of 9-day-old etiolated maize (Zea mays L.) seedlings and incubated in a relatively simple medium in light and in the dark. During the first 5 h no changes occurred in the fine structure of the isolated etioplasts in the dark. In light the size of the prolamellar bodies decreased and significantly more plastid sections without prolamellar bodies were counted. The total length of the thylakoids per plastid section increased, but there was no evidence for bi- and polythylakoid formation. It is concluded that light induces the structural transformation of the prolamellar body membranes into primary thylakoids also in isolated etioplasts.
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Kohn, S., Klein, S. Light-induced structural changes during incubation of isolated maize etioplasts. Planta 132, 169–175 (1976). https://doi.org/10.1007/BF00388899
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DOI: https://doi.org/10.1007/BF00388899