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. 1970 Feb 1;44(2):290–304. doi: 10.1083/jcb.44.2.290

MACROMOLECULAR PHYSIOLOGY OF PLASTIDS

VIII. Pigment and Membrane Formation in Plastids of Barley Greening under Low Light Intensity

K W Henningsen 1, J E Boynton 1
PMCID: PMC2107941  PMID: 5411076

Abstract

Sequential changes occurring in the etioplasts of the primary leaf of 7-day-old dark-grown barley seedlings upon continuous illumination with 20 lux have been investigated by electron microscopy, in vivo spectrophotometry, and thin-layer chromatography. Following photoconversion of the protochlorophyllide pigment to chlorophyllide and the structural transformation of the crystalline prolamellar bodies, the tubules of the prolamellar bodies are dispersed into the primary lamellar layers. As both chlorophyll a and b accumulate, extensive formation of grana takes place. After 4 hr of greening, protochlorophyllide starts to reaccumulate, and concomitantly both large and small crystalline prolamellar bodies are formed. This protochlorophyllide is rapidly photoconverted upon exposure of the leaves to high light intensity, which also effects a rapid reorganization of the recrystallized prolamellar bodies into primary lamellar layers.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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