NUCLEOCYTOPLASMIC EXCHANGES DURING EARLY INTERPHASE
نویسندگان
چکیده
منابع مشابه
Nucleocytoplasmic Exchanges during Early Interphase
Colloidal gold was injected into the cytoplasm of amebae (Amoeba proteus) approximately 5 min, 1 hr, and 2 hr after cytokinesis. Later, interphase cells were similarly treated. All of the amebae were fixed about 50 min after injection and were examined with the electron microscope in order to determine the distribution of the gold. It was found that for a period of 2 hr after division the uptak...
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Colloidal gold particles, 25 to 55 A in diameter, which had been coated with polyvinylpyrrolidone, were microinjected into the ground cytoplasm of amebas (Chaos chaos). At time intervals of 1 minute, 2 minutes, 10 minutes, and 24 hours after injection the cells were fixed for electron microscopy. After 24 hours, gold particles were found in both the nuclei and the ground cytoplasm, the concentr...
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Intentionality is defined as the cognitive ability to represent goals beyond the here and now of perception. First signs of intentionality appear by the second month after birth. A major mechanism responsible for such development might be the unique reciprocal and intentional ways humans communicate with each other, particularly their young progenies. I argue that starting in the second month, ...
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Evidence exists which indicates that the pores of the nuclear envelope are important pathways for macromolecular exchanges between the nucleoplasm and cytoplasm (1-4). The pores as seen with the electron microscope often contain an electron-opaque material (5-7), and it has been suggested that the presence of such pore material could affect nucleocytoplasmic exchanges (8). Investigations in whi...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1968
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.39.1.49