Abstract
A wide range of cell-cell interactions are mediated by the release of specific molecules by signalling cells, leading to a defined physiological response of target cells. Our concept of signalling derives largely from animal systems. Often the signalling and target cells are in close apposition and the signal is’ borne on the surface of the signalling cell or passes directly between the cytoplasmic contents of the two cells via gap junctions. Other interacting animal cells are widely-separated and the signal passes through extracellular fluids (e.g. bloodstream) to the target cell. Binding of the signal to a receptor molecule on the target cell represents ‘receipt’ of the signal, and this interaction between signal and receptor is conventionally known as ‘recognition’.
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© 1988 Springer-Verlag Berlin Heidelberg
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Douglas, A.E. (1988). Nutritional Interactions as Signals in the Green Hydra Symbiosis. In: Scannerini, S., Smith, D., Bonfante-Fasolo, P., Gianinazzi-Pearson, V. (eds) Cell to Cell Signals in Plant, Animal and Microbial Symbiosis. NATO ASI Series, vol 17. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-73154-9_20
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DOI: https://doi.org/10.1007/978-3-642-73154-9_20
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