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Ultrastructure of Oligodendrogliomas
1981The study of 18 oligodendrogliomas shows a number of characteristics which indicate a common hypothelial stem cell. The main cytologic characteristics are: a) high number of mitochondria, frequently atypical; b) polygonal crystalline structures in the cytoplasm in most of the tumors studied, and c) cytoplasmic microtubuli. None of these characteristics
J, Cervós-Navarro, N, Pehlivan
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The ultrastructure of chloroplasts
Experimental Cell Research, 19551. 1. On ultrathin sections of chloroplasts from Aspidistra elatior the electron microscopic study has revealed that the grana consist of layered columns. 2. 2. The grana are organized in double membrane discs the two membranes of which are about 65 A thick. These membranes bound a narrow, closed space the height of which also is about 65 A. The
E, STEINMANN, F S, SJOSTRAND
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Journal of Ultrastructure Research, 1967
Guanophores in the back skin of the adult tree frog have been studied with an electron microscope. The cytoplasm is characterized by numerous needle- or platelet-like clear spaces which are incompletely surrounded by their own limiting membranes.
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Guanophores in the back skin of the adult tree frog have been studied with an electron microscope. The cytoplasm is characterized by numerous needle- or platelet-like clear spaces which are incompletely surrounded by their own limiting membranes.
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The ultrastructure of mitochondria
Proceedings of the Royal Society of London. Series B. Biological Sciences, 1969Abstract The study, in thin sections, of the specific morphology of mitochondria in different plant and animal cells has confirmed the view that, in spite of a wide polymorphism in gross structure, the organelle is nevertheless built according to the same fundamental pattern, which was first described by Palade (1953) and by Sjöstrand
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The ultrastructure of gonadoblastoma and dysgerminoma
Human Pathology, 1974Abstract A gonadoblastoma associated with dysgerminoma that occurred in the gonad of a 17 year old phenotypic female has been studied with the electron microscope. Ultrastructurally the nests of gonadoblastoma contain two cell types, namely, large vesicular cells and small epithelium-like cells.
K, Hou-Jensen, R L, Kempson
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Archives of Neurology, 1975
The fine structure of five cerebral aneurysms, four early aneurysmal changes, and three arteriovenous aneurysms (two cerebral and one spinal) were investigated from surgical and autopsy specimens. Each lesion was characterized by thickening, lamination, redundancy, and separation of basement membranes, abundant cellular debris, and a paucity or absence
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The fine structure of five cerebral aneurysms, four early aneurysmal changes, and three arteriovenous aneurysms (two cerebral and one spinal) were investigated from surgical and autopsy specimens. Each lesion was characterized by thickening, lamination, redundancy, and separation of basement membranes, abundant cellular debris, and a paucity or absence
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Ultrastructure of parenchyma cell wall in bamboo (Phyllostachys edulis) culms
Cellulose, 2020Cai Lian +6 more
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Ultrastructure of cilia in horses.
Journal of submicroscopic cytology and pathology, 1992This paper presents some ultrastructural details of cilia from the ciliated tracheal epithelium of healthy horses. By using a new fixation method, the Authors were able to describe minute details, some of which have been only rarely observed in other species and mostly by means of the freeze-etch technique (i.e.
ROPERTO, FRANCO PEPPINO +4 more
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