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Showing papers on "Cellular compartment published in 1969"


Journal ArticleDOI
01 Sep 1969-Planta
TL;DR: It is suggested that the lipid droplets and protein bodies are storage materials which are required during the first stages of differentiation at the beginning of the growing period.
Abstract: Cells of the resting cambium contain vesiculate smooth endoplasmic reticulum, free ribosomes, oil droplets, and protein bodies. There are comparatively few vacuoles, and these are small. The nucleus is fairly central within the cell and is surrounded by a cluster of plastids and mitochondria. Active cambial cells and young differentiating xylem elements are highly vacuolate, contain rough endoplasmic reticulum and polyribosomes, the Golgi apparatus is active in the production of vesicles, and the distribution of organelles is a function of the vacuolation of the cell.

58 citations


Journal ArticleDOI
01 Dec 1969-Planta
TL;DR: The question of whether the endoplasmic reticulum or the Golgi apparatus forms the cell plate must be answered in this way: both endoplasmsic Reticulum and Gol Gi apparatus supply material for growth of the cell Plate.
Abstract: In meristematic cells of the gemma of Riella helicophylla and in young bud cells from the protonema of Funaria hygrometrica the cell plate is formed by fusion of small vesicles originating from the Golgi apparatus These spherical vesicles of about 01 μm diameter have an electron dense centre, probably consisting of pectic substances or their precursors The endoplasmic reticulum producing multivesicular bodies participate in cell plate formation too Another cytoplasmic component forming the cell plate are coated vesicles, the origin of which is the Golgi apparatus and perhaps also the endoplasmic reticulum In view of these observations the question of whether the endoplasmic reticulum or the Golgi apparatus forms the cell plate must be answered in this way: both endoplasmic reticulum and Golgi apparatus supply material for growth of the cell plate Multivesicular bodies, coated vesicles and other small vesicles of unknown nature participate in the formation of the primary wall

17 citations


Journal ArticleDOI
TL;DR: A fine structural study of the normal synovial cells from 8 pigs revealed 3 cell types as evidence of variation in the presence of cytoplasmic organelles.

6 citations