Abstract
In the nuclei ofLupinus polyphyllus strongly marked chromocentres occur. In electron micrographs of anther cell nuclei these chromocentres appear either as a homogeneous network or subdivided into two distinct regions, a network-like (NR) and a banded one (GR). In both a 100 Å fiber is the basic unit. The GR is composed of 4 to 6 parallely arranged electron dense bands (240–280 Å wide) and interbands (260–300 Å wide) of low electron density. They appear to correspond to a cylindrical structure with disc-like components and connective sections. These observations are discussed in relation to chromosome structure during interphase and mitosis.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literatur
Bostock, C. J., Sumner, A. T., 1978: The Eukaryotic Chromosome. — Amsterdam, New York, Oxford: North-Holland Publishing Company.
Busch, H., 1974: The Cell Nucleus. Vol. 1. — New York, London: Academic Press.
Carniel, K., 1954: Endomitosen im zellulär-einkernigen Tapetum. — Österr. Bot. Z.101, 435–436.
Comings, D. E., 1977: Mammalian chromosome structure. — Chromosomes Today6, 19–26.
Du Praw, E. J., 1970: DNA and chromosomes. — New York: Holt, Rinehart and Winston Inc.
Fill, A., Moens, P. B., 1973: The development, structure and function of modified synaptonemal complexes in mosquito oocytes. — Chromosoma41, 37–62.
Fill, A., Goldstein, P., Moens, P. B., 1977: Precocious formation of synaptonemal-like polycomplexes and their subsequent fate in femaleAscaris lumbricoides var.suum. — Chromosoma65, 21–35.
Geitler, L., 1934: Grundriß der Cytologie. — Berlin: Borntraeger.
, 1941: Das Wachstum des Zellkerns in tierischen und pflanzlichen Geweben. — Ergebnisse d. Biol.18, 1–54.
Heitz, E., 1928: Das Heterochromatin der Moose I. — Jahrb. Wiss. Bot.69, 762–818.
Nagl, W., 1976: Zellkern und Zellzyklen. — Stuttgart: Eugen Ulmer.
Rasmussen, S. W., 1975: Synaptonemal polycomplexes inDrosophila melanogaster. — Chromosoma49, 321–331.
Schwarzacher, H. G., 1976: Modern ideas on chromosome structure. — Path. Europ.11, 5–13.
Schweizer, D., 1976: Giemsa and fluorochrome banding of polytene chromosome inPhaseolus vulgaris andP. coccineus. — InJones, K., Brandham, P. E., (Eds.): Current Chromosome Research, p. 51–56. — Amsterdam, New York, Oxford: Elsevier North Holland Biomedical Press.
, 1976: Heterochromatin diversity inCymbidium and its relationship to differential DNA replication. — Expl. Cell Res.98, 411–423.
Spurr, A. R., 1969: A low viscosity epoxy resin embedding medium for electron microscopy. — J. Ultrastr. Res.26, 31–43.
Yunis, J. J., 1976: High resolution of human chromosomes. — Science191, 1268–1270.
Author information
Authors and Affiliations
Additional information
Herrn Prof. Dr. L.Geitler zur Vollendung seines 80. Lebensjahres gewidmet.
Rights and permissions
About this article
Cite this article
Carniel, K. Über bandartige Strukturen in den Chromozentren vonLupinus polyphyllus . Pl Syst Evol 131, 235–242 (1979). https://doi.org/10.1007/BF00984256
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00984256