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Ultrastructure and differentiation of sieve elements in primitive angiosperms. I.Winteraceae
The secondary phloem of the primitive angiosperm familyWinteraceae is composed of sieve tubes, companion cells and phloem-parenchyma cells. In a vertical file of a few consecutive cells, the entire differentiatio...
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Article
The development of specific sieve-element plastids in wound phloem ofColeus blumei (S-type) andPisum sativum (P-type), regenerated from amyloplast-containing parenchyma cells
In experimentally-induced wound phloem, sieve-element plastids express their genetically determined type in depositing amylopectinrich sieve-tube starch (Coleus, S-type) and polygonal protein crystals (Pisum, P-t...
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Article
Fine structure, pattern of division, and course of wound phloem in Coleus blumei
The wound phloem bridges which have developed six days after interrupting an internodal vascular bundle contain wound sieve-elements, companion cells, and phloem parenchyma cells. An analysis of the meristemat...
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Article
Dilated cisternae inCapparales—an attempt towards the characterization of a specific endoplasmic reticulum
Dilated cisternae (DC) of endoplasmic reticulum were found to be a typical component of stem-, hypocotyledon-, and root vascular parenchyma as well as root cap cells inBrassicaceae (14 species screened) andCappar...
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Article
Fine structure and development of laticifers inGnetum gnemon L.
Articulated laticifers are a regular component of stem cortex and pith ofGnetum gnemon L. Differentiation of laticifers starts very early and is completed within the very first centimeters adjacent to the apical ...
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Buchbesprechungen
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Introduction
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P-type sieve-element plastids: A correlative ultrastructural and ultra-histochemical study on the diversity and uniformity of a new reliable character in seed plant systematics
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Ultrastructure of phloem and its development inGnetum gnemon, with some observations onEphedra campylopoda
An ultrastructural study of the phloem tissues of the stems of bothGnetum gnemon andEphedra campylopoda has shown that they contain only two types of cells—the sieve cells and the phloem-parenchyma cells.
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Phytoferritin in sieve-tube plastids
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Zum Feinbau der Siebröhren-Plastiden bei Monocotylen