Electron Microscope Studies on the Mitotic Figure
نویسندگان
چکیده
منابع مشابه
Electron microscope observations on mitotic chromosomes.
A method is described by which single mitotic cells growing in tissue culture can be selected under the light microscope and then sectioned for electron-microscopic study. The method has been applied to mitotic cells in newt heart cultures and to monolayer cultures of human fibroblasts. The structure of the chromosomes and of the mitotic apparatus at various phases of mitosis are described and ...
متن کاملElectron Microscope Studies on the Haemoglobin Molecules
Haemoglobin molecules isolated from normal human subjects have been directly micrographed under the electron microscope following in general Hall's technique. The average height (h) and the widths along (w(11)) and perpendicular (w( perpendicular)) to the shadow direction of the molecules have been measured as 56.5 +/- 6.6 A, 122.7 +/- 15 A, and 120.9 +/- 20 A, respectively. The exaggeration in...
متن کاملElectron Microscope Studies on Blue-green Algae
Several species of blue-green algae were studied in thin sections with the electron microscope. Our electron micrographs confirm the view that the cell of blue-green algae is different and simpler in organization than the typical plant or animal cell. On the other hand, the general pattern of ultrastructure is the same as that found in bacteria and Streptomyces. The cell boundary is formed by a...
متن کاملElectron Microscope Studies on the Surface Coat of the Nephron
Attempts to make visible the carbohydrate coat at the free cell surface of glomeruli as well as the tubules of rabbit kidney were undertaken. The ruthenium red procedure was performed, according to Luft, at various pH values. Moreover, the colloidal iron and the colloidal thorium methods were used. Neuraminidase digestion was also performed. In the ruthenium red procedure the luminal face of th...
متن کاملElectron Microscope Studies of the Human Epidermis
The thin skin of the left upper quadrant of the human abdomen has been studied by electron microscopy. Tissue removed with a high speed rotary punch was fixed in osmium tetroxide or potassium permanganate. The latter fixative in our preparations is superior to osmium for the demonstration of epidermal cell membranes and certain other membranous structures of the epidermis. The cytoplasmic membr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: CYTOLOGIA
سال: 1958
ISSN: 0011-4545,1348-7019
DOI: 10.1508/cytologia.23.383