منابع مشابه
Inorganic Cations in Rat Kidney
For localization of pyroantimonate-precipitable cations, rat kidney was fixed by perfusion with a saturated aqueous solution of potassium pyroantimonate (pH about 9.2, without addition of any conventional fixative). A remarkably good preservation of the tissue and cell morphology was obtained as well as a consistent and reproducible localization of the insoluble antimonate salts of magnesium, c...
متن کاملInorganic Cations in the Cell Nucleus
Earlier reports indicated the presence of significant amounts of inorganic salts in the nucleus. In the present study the possibility that this might be related to the transcription process was tested on seminiferous epithelium of the adult mouse, using potassium pyroantimonate as a fixative. The results indicated that a correlation exists between the inorganic cations comprising the pyroantimo...
متن کاملInduction of morphogenesis in Geodermatophilus by inorganic cations and by organic nitrogenous cations.
Morphogenesis of Geodermatophilus strain 22-68 involves two stages, a motile rod (R form) and an irregularly shaped cluster of coccoid cells (C form). A variety of mono- and divalent cations have been found to induce R-form to C-form morphogenesis and to maintain the organism in the C form. Concentration optima for all cations exceeded 100 mM. Results indicated that uptake of cations was accomp...
متن کاملThe Distribution of Inorganic Cations during Spermiogenesis in the Mouse
Inorganic cations have been localized in several animal and plant tissues by means of the pyroantimonate fixation procedure (1-3) . We demonstrated that an aqueous solution of potassium pyroantimonate enters the cell without disruption of cell membranes and produces electron-opaque cation-antimonate precipitates in a constant and reproducible manner. The results obtained in mouse testis (3) wer...
متن کاملSPECIAL CONTRIBUTION In Vivo Inorganic Chemistry of Technetium Cations
Technetium-99m cations are of interest because of their potential use as myocardial perfusion imaging agents. These species can undergo in vivo reactions which markedly affect their biodistribution patterns. Four such cases of reactions are presented and discussed: (1) simple ligand substitution; (2) metal centered redox processes; (3) reactions of coordinated ligands; (4) outer sphere associat...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1971
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.50.3.830