Genome variability of plant somatic cells. 1. Variability during ontogenesis

  title={Genome variability of plant somatic cells. 1. Variability during ontogenesis},
  author={Victor Kunakh},
  journal={Biopolymers \& Cell},
  • V. Kunakh
  • Published 20 November 1994
  • Biology
  • Biopolymers & Cell
Variability of the Triticale Genome in Culture in vitro
The research results of studies on genome variation in triticale, which occurs during in vitro cultivation and is observed at different levels of its organization, are presented in the review. Data
Variability of genome size in conifers under extreme environmental conditions
Transformation of the genome size in conifers growing in an extreme environment is manifested in the variability of the number of chromosomes, content of nuclear DNA, modulation of simple repetitive
Phenomenon of evolution of clonal chromosomal abnormalities in childhood acute myeloid leukemia
An identity in abnormal chromosomal structure was revealed as a result of the comparison of karyotypes during diagnostics and during relapse, which could be evidence of the initial induction of some types of evolution of chromosomal abnormalities in leukemic cells in AML children by the chemical agents.
Chromosome variation in ginseng cells transformed with the rolC plant oncogene.
An increase of chromosome variation in cultivated cells was the main effect of the integration of several oncogenes, which were in A. rhizogenes A4 T-DNA, or of the indi- vidual rolC gene in the ginseng genome.


Mitotic activity of endopolyploid root cells inAllium cepa
The endopolyploid process, which may be the expression of chromosomal endoreduplication, seems to play an important role in Allium cepa cytodifferentiation.
Condensed chromatin and its underreplication during root differentiation in leguminosae
Though the interphase nuclear structure remained same in differentiated cells, the amount of condensed chromatin was considerably less than that in the meristematic cells, indicating underreplication of heterochromatin during differentiation.
Cytophotometric investigation of DNA and RNA content in nuclei of active Strasburger cells in Pinus nigra var. austriaca (Hoess) Badoux
The nuclei of active, sieve cell-associated Strasburger cells in the secondary phloem of Pinus nigra var. austriaca (Hoess) Badoux have been studied for their structure and DNA and RNA content. No
Das LängenverhÄltnis der Eu- und Heterochromatischen Abschnitte Riesenchromosomenartiger Bildungen Verglichen mit dem der Prophasechromosomen bei Bryonia Dioica
ZusammenfassungIn den 128- und 256-ploiden Kernen der Klebstoffhaare von Bryonia dioica fanden sich im Jahre 1960 riesenchromosomenartige Gebilde, die eine Mittelstellung zwischen „Riesenchromosomen“
Decreased DNA content of birch (Betula) chromosomes at high ploidy as determined by cytophotometry
A direct correlation was found between observed DNA absorbance and chromosome number except for plants of B. papyrifera with 84 somatic chromosomes, which may be an adaptation for the establishment of higher ploidy in birches.
Degradation of the endosperm cell walls of Lactuca sativa L., cv. grand rapids in relation to the mobilisation of proteins and the production of hydrolytic enzymes in the axis, cotyledons and endosperm
Beta-mannosidase, an enzyme involved in the hydrolysis of oligo-mannans released by the action of endo-β-mannase on mannan reserves in the endosperm, arises within the cotyledons, providing further evidence that theendosperm is an early source of food reserves for the growing embryo.
Die DNS-Reproduktion in ihrer Beziehung zum endomitotischen Strukturwechsel
Der DNS-Gehalt endomitotisch heranwachsender Kerne aus der Epidermis des Appendix von Sauromatum guttatum wurde auf Grund der Feulgen-Reaktion cytophotometrisch bestimmt.
Gibberellic-acid-induced cell elongation in pea epicotyls: Effect on polyploidy and DNA content
In gibberellic-acid(GA3)-treated epicotyls of dwarf peas (Pisum sativum L.) grown in the light, DNA determinations show that GA3-promoted cell elongation is not accompanied by increased endomitosis, but chemical estimations show an increased DNA content per epicotym.
Nuclear DNA changes within Helianthus annuus L.: cytophotometric, karyological and biochemical analyses
DNA thermal denaturation and reassociation kinetics indicate that a frequency variation in repeated DNA sequences goes hand in hand with changes in the size of the genome, supporting the concept that a plant genome is highly flexible.
Nuclear DNA changes within Helianthus annuus L.: origin and control mechanism
It was found that the Feulgen absorption values of mitotic prophasing in immature anthers and pistils and of meiotic prophases I are the same in any flower of the head.