Regulation of Numbers of Algae in the Hydra‐Chlorella Symbiosis

摘要: Algae injected into green hydra are taken up rapidly and in relatively large numbers, resulting an increased symbiont population digestive cells. The increase is temporary the normal stock size restored within 24 hours after injection. Restoration of as evidence for regulation, technique offers a means eliciting studying at least one type regulatory mechanism. Similarly, method described rapid assay visualization cell mitosis. This may facilitate investigation other potential mechanisms which involve interaction between host algal division. Finally, overgrowth cells from nutrient enrichment described. observations lend support to hypothesis that limitation regulate symbionts.