Results 321 to 330 of about 79,372 (334)
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Journal of Cell Science, 1991
ABSTRACT The nucleolus, the most prominent feature of the inter-phase nucleus, is involved in ribosome biogenesis (Warner, 1990). During evolution, the nucleolus first appeared at the time when nuclear envelope compartmentation of the cells was taking place. I would like in this review to provide information showing that the nucleolus is
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ABSTRACT The nucleolus, the most prominent feature of the inter-phase nucleus, is involved in ribosome biogenesis (Warner, 1990). During evolution, the nucleolus first appeared at the time when nuclear envelope compartmentation of the cells was taking place. I would like in this review to provide information showing that the nucleolus is
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Chronobiological Studies on the Nucleolus
Chronobiology International, 1985Chronobiological studies on the nucleolus were performed, using stereological analysis at the electron microscopic level, on different cell types in permanent interphasic state, in rats submitted to various lighting regimen. During the dark span (12L/12D): (1) in sympathetic neurons of superior cervical ganglion circadian changes in nucleolar ...
Marie-Josephe Pébusque, Raymond Seïte
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The nucleolus, a source of ribosomes
Biochimica et Biophysica Acta, 1963Abstract The occurrence of ribosomes in sub-nuclear fractions has been investigated. It has °been found that ribonucleoprotein particles with a RNA/protein ratio of 0.5 may be extracted from nucleoli by sodium deoxycholate treatment. Several lines of evidence have been presented to show that this ribonucleoprotein does not come from cytoplasmic ...
Margaret I.H. Chipchase +2 more
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Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1957
1. Der Nucleolus ist eine chemisch tatige Kernorganelle. Er ist schwammoder knauelartig aufgebaut, enthalt basische und andere Eiweiskorper, ferner RNS. Er ist Feulgen-negativ. Die in ihm gebildeten Substanzen sammeln sich auf seiner Oberflache. Sie sind ein Nukleolipoproteid und verhalten sich Feulgenpositiv.
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1. Der Nucleolus ist eine chemisch tatige Kernorganelle. Er ist schwammoder knauelartig aufgebaut, enthalt basische und andere Eiweiskorper, ferner RNS. Er ist Feulgen-negativ. Die in ihm gebildeten Substanzen sammeln sich auf seiner Oberflache. Sie sind ein Nukleolipoproteid und verhalten sich Feulgenpositiv.
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The Nucleolus and the Synthesis of Ribosomes
1967Publisher Summary The chapter discusses the nucleolus and the synthesis of ribosomes. It also briefly discusses some of the various lines of evidence that have implicated the nucleolus, with ribosome synthesis, trying, where possible, to indicate the limitations of current concepts, as well as the mechanisms that appear to be firmly established.
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