Comparative Morphology

  • H. D. Kumar
  • H. N. Singh
Chapter

Abstract

In procaryotic algae (Cyanophyta) the photosynthetic, genetic and respiratory apparatuses are present in the cell but are not separated from each other by a bounding membrane of their own. Consequently, the cells lack organized nuclei, chromatophores and mitochondria (Fig. 2-1 A). In eucaryotic algae, on the other hand, the photosynthetic, genetic and respiratory apparatuses are membrane-bounded and separated from each other (Fig. 2-1 B).
Fig. 2-1

Two basic types of cellular organization in algae. A, diagrammatic plan of a procaryotic cell of blue-green algae. B, Heteromastix rotunda showing eucaryotic organization (after Manton et al., 1965).

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Selected References

  1. Haine, L. A. and Craigie, J. S., Studies on the algal cuticle, J. Phycol., 5, 89–102 (1969).CrossRefGoogle Scholar
  2. Leedale, G. F., Phylogenetic aspects of nuclear cytology in the algae. In Frederick, J. F. and Klein, R. M. (eds.) Phylogenesis and morphogenesis in the algae, Ann. N.Y. Acad. Sci., 175, 429–53 (1970).Google Scholar
  3. Manton, I., Some possibly significant structural relations between chloroplasts and other cell components. In Goodwin, T. W. (ed.) The Biochemistry of Chloroplasts, Vol. I, 23–47, Academic Press, New York (1966).Google Scholar
  4. Raven, P. H., A multiple origin for plastids and mitochondria, Science, Wash., 169, 641–46 (1970).CrossRefPubMedGoogle Scholar

Copyright information

© Affiliated East-West Press Private Limited 1979

Authors and Affiliations

  • H. D. Kumar
    • 1
  • H. N. Singh
    • 1
  1. 1.VaranasiIndia

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