Abstract
In the coenobia-forming green alga, Hydrodictyon reticulatum, changes in DNA composition during growth and differentiation of reproductive cells were followed. A “loss” of DNA per nucleus could be attributed to underreplication of an amplified DNA fraction being part of a (GC)-rich satellite band in CsCl gradients of DNA from young coenobia. This (GC)-rich satellite DNA contains up to 3 % unique DNA sequences intermingled with repetitive DNA. It does not (or nearly not) contain ribosomal DNA. A possible role of this DNA fraction in differentiation is suggested.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Behn W, Herrmann RG (1977) Molec gen Genet 157: 25–30
Davies DR, Plaskitt A (1971) Genet Res 17: 33–43
Kiper M (1978) Analyt Biochem 91: 70–74
Nagl W, Hemleben V, Ehrendorfer F (eds) (1979) Genome and chromatin: organization, evolution, function. Springer, Wien New York
Pirson A (1970) Publik Inst Wiss Film, Sekt Biol C 1042–43. IWF, Göttingen
Ssymank V (1972) Arch Mikrobiol 82: 311–324
Ssymank V (1975) In: Lefort-Iran M, Valencia R (eds) Les cycles cellulaires et leur blocage chez plusieurs protistes. CNRS, Paris, pp 199–202
Ssymank V (1978) In: Akoyunoglou G, Argyroudi-Akoyunoglou JH (eds) Chloroplast development. Elsevier/North-Holland, Amsterdam, pp 587–592
Ssymank V (1981) Ber deutsch Bot Ges 94: 49–58
Winkler U, Pirson A (1980) Biochem Physiol Pflanz 175: 460–475
Winkler U, Steup M, Pirson A (1980) Biochem Physiol Pflanz 175: 699–711
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ssymank, V. Changes in DNA composition during cell differentiation in a green alga. Plant Cell Reports 2, 248–251 (1983). https://doi.org/10.1007/BF00269152
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00269152