Rule governing Cell Division in Anabaena

  title={Rule governing Cell Division in Anabaena},
  author={Graeme J. Mitchison and Michael D. Wilcox},
THE blue-green alga Anabaena catenula is a filamentous organism having specialized cells called heterocysts which appear at intervals along the filaments to form a spaced pattern1. The organism grows by division of all its unspecialized vegetative cells; heterocysts do not divide. The spacing between heterocysts is maintained by the appearance of presumptive heterocysts (proheterocysts) which develop from the vegetative cells roughly midway between previously formed heterocysts (Fig. 1). We… CONTINUE READING


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