La teneur du noyau cellulaire en acide désoxyribonucléique à travers les organes, les individus et les espèces animales

  title={La teneur du noyau cellulaire en acide d{\'e}soxyribonucl{\'e}ique {\`a} travers les organes, les individus et les esp{\`e}ces animales},
  author={Roger Vendrely and Colette Vendrely},
Techniques are described for the isolation of nuclei from animals cells and for the determination of the desoxyribonucleic acid content for each nucleus. These techniques have already been used in order to study a few mammalian species. From the first results (especially in calf, ox and bull), it seems to appear that the nucleus of the somatic cells contains constantly the same amount of desoxyribonucleic acid, whatever tissue and animal we studied within the same species; and this amount is… 

Bildung Zusätzlicher DNS nach Blockierung der Zellteilung von Tetrahymena durch Actinomycin

  • G. Cleffmann
  • Biology
    Zeitschrift für Zellforschung und Mikroskopische Anatomie
  • 2004
Findings indicate that the onset of DNA synthesis is independent of a preceding cell division, a preceding nuclear division, of the average amount of DNA present, and of the main portion of RNA synthesis.

Zytophotometrische Bestimmung des DNS-Gehaltes von Zellen des lymphatischen Gewebes

SummaryThe various cell types of human tonsils have been identified and photographically documented on imprints with the Pappenheim stain. The slides were then restained with the Feulgen-method. By

Quantitative DNS-Bestimmungen von Ameisenhirnzellen

Ants which were kept in the laboratory for nearly two years did not show such a regular change in the Feulgen dye in their brain cells, and these nuclei never reached the colour intensity of those ants from a natural habitat.

Comparative microphotometric studies of DNA and arginine in plant nuclei

Photometric measurements have been made of the amounts of stain formed in the Feulgen (DNA) and Sakaguchi (arginine) reactions in plant nuclei of differing ploidy, suggesting that there is some degree of quantitative constancy of nuclear arginine which parallels that of DNA.

The C-value enigma in plants and animals: a review of parallels and an appeal for partnership.

The fundamental questions of the C-value enigma clearly transcend taxonomic boundaries, and increased communication is therefore urged among those who study genome size evolution, whether in plants, animals or other organisms.

Molecules and Macroevolution: A Gouldian View of the Genome

The hierarchical conception of macroevolution espoused by Gould is brought to bear on phenomena including the evolution of transposable elements within genomes and the effects of total genome size on higher level properties including at the cellular, organismal, and ecological scales.

Quantitative DNS-Bestimmungen von Ameisenhirnzellen

Brains of adult Myrmica laevinodis workers were Feulgen stained and the colour intensity measured by microspectrophotometry depended on the time the brains stayed in Schiff's reagens, which means that the time of staying in Schiffs reAGens is another factor influencing the amount of measurable DNA.

Estimation of the diversity of transcription in early rabbit embryos

RNA from 6-day preimplantation rabbit blastocysts hybridizes with 1.8% of the nonrepeated portion of the rabbit genome. This indicates that at least the quantitative equivalent of about 60,000 unique

Genome Size and the Phenotype

It is clear that polyploidy plays only a relatively small role in the origin of the huge genome size differences reported, and the accumulation of retroposon-like and other repetitive elements in the genomes which are largely responsible for the huge diversity of genome sizes in plants.

Induced and developmental variation in chromosomes of meristematic cells

Change in chromosome size in root tip meristems of rye and Allium cepa are induced by growing the plants in solutions differing in phosphorus content, and variation is a reflection of change in the chromosome dry mass.



Sur le rôle possible des deux acides nucléiques dans la cellule vivante

This hypothesis explains cellular differentiation (multicellular organism) through constitutional variations of cytoplasmic ribonucleic acids throughconstitutional variations of desoxyribon nucleic acids.

L'acide thymonucléique polymérisé, principe paraissant susceptible de déterminer la spécificité sérologique et l'équipement enzymatique des bactéries. Signification pour la biochimie de l'hérédité

Authors have shown and studied one case of induction of a new serological specificity and a new enzymic equipment in aacterium coli through a substance liberated, during autolysis, by an other bacterium coli.


It is found that the methods described in this paper are of value in learning how the substances present in a chromosin are put together in a chromosome.

Preparation of Living Nuclei from Hen Erythrocytes

The method to be described leads to a stable suspension of free nuclei which probably have been less damaged than in the freezing technic and is based on the hemolysis of hen erythrocytes with lysolecithin in neutral saline solution.


While nucleoprotamine is being extracted by M NaCl a stage is reached at which the sperm chromosomes are clearly visible, and all the protamine diffuses through the membrane leaving behind highly polymerized, protein-free desoxyribose nucleic acid.


  • A. Marshak
  • Biology
    The Journal of general physiology
  • 1941
It is suggested that the altered distribution of P32 in the lymphoma cell, markedly increasing the concentration in the nucleus shortly after irradiation, is correlated with the inhibition of mitosis produced by the x-rays.

L'évolution de la formule chromosomiale chez les Vertébrés

Das Moment des Statischen schien, falls man aus den Erfahrungstatsachen aufs Ganze schliel3en wollte, aus der Welt fiberhaupt ffir immer verbannt zu sein and nur noch zeitlich ver~inderliche (allenfalls periodische) L6sungen in Frage zu kommen.