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USE OF THE FREEZING POINT METHOD TO ADJUST THE TONICITY OF FIXING SOLUTIONS.
  • T. Tahmisian
  • Chemistry, Medicine
  • Journal of ultrastructure research
  • 1 April 1964
It has been determined that many of the fixing solutions used in tissue preparation for electron microscopy are hypotonic, a few are hypertonic. A commercially available electronic apparatus is usedExpand
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AN ELECTRON MICROSCOPE STUDY
SYNOPSIS In the fresh water and marine sponges, the Golgi apparatus in the collar cells in each type is differently arranged. In the former there are contractile vacuoles which have no directExpand
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Ultrastructure of the nuclear membrane of a gregarine parasitic in grasshoppers.
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ELECTRON MICROSCOPE STUDIES ON THE CELLS OF THE MALPIGHIAN TUBULES OF THE GRASSHOPPER (ORTHOPTERA, ACRIDIDAE)
For purposes of description, the cells of the Malpighian tubules of the grasshopper may be divided into basal, intermediate, and apical zones. The basal zone of the cell contains what appears to beExpand
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Chemical, physical, and morphological properties of ornithine Aminotransferase from rat liver.
Abstract Ornithine aminotransferase was crystallized from rat liver and several properties of the enzyme were studied, including amino acid composition, thiol content, absorbance spectrum,Expand
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Studies on the Fine Structure of a Gregarine Parasitic in the Gut of the Grasshopper, melanoplus differentialis*
SYNOPSIS. Materials within the endoplasm of both the protomerite and deutomerite may be displaced and stratified by ultracentrifugation. Animals are not killed by this treatment, and in time aExpand
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PHASE-CONTRAST AND ELECTRON MICROSCOPE STUDIES ON THE NEBENKERN, A MITOCHONDRIAL BODY IN THE SPERMATIDS OF THE GRASSHOPPER
Attempts to demonstrate a structure within mitochondria which might be come lated with their function have been the object of several investigations : (1 ) In the germ cells of certain insects theExpand
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An electron microscope study on the pharyngeal glands of the honeybee
The pharyngeal gland cells of the worker honeybee function as unicellular glands; each is possessed of a relatively long, sacculated and unbranched ductule. The ductule takes a sinuous course aroundExpand
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The metabolism of cockroach muscle, Periplanta americana.
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Structure of the mitochondria in the male germ cells of Helix as revealed by the electron microscopy.
Abstract The mitochondria of the male germ cells of Helix reveal longitudinally arranged filament-like structures. There are often 8 filaments that measure about 400 A in thickness in eachExpand
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