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Letters to Nature
Nature 182, 1614 - 1615 (06 December 1958); doi:10.1038/1821614a0

The Macronucleus of Spirostomum

B. R. SESHACHAR

Department of Zoology, Central College, University of Mysore, Bangalore.

THE purpose of this communication is to describe an interesting property of the macronucleus of a species of Spirostomum, a large freshwater ciliate. The nuclear apparatus of this animal consists of a long cylindrical macronucleus and a number of small micronuclei. The cytology of this species has been described by Seshachar and Padmavathi1. Feulgen preparations show a number of granules of varying sizes in the macronucleus embedded in a more homogeneous matrix.

  1. Seshachar, B. R. , and Padmavathi, P. B. , J. Protozool., 3, 145 (1956). | ISI |
  2. Rudzinska, M. , and Porter, K. R. , J. Protozool., 2, 5 (1955), Supplement. Zebrun, W. , ibid., 4, 22 (1957), Supplement. | ISI |
  3. Callan, H. G. , and Tomlin, S. G. , Proc. Roy. Soc., B, 137, 367 (1950). | ISI | ChemPort |



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