Abstract
Plant cells have the capacity to distinguish PGRs from the myriad of other molecules to which they are exposed. In addition, they can discriminate between naturally occurring PGRs and synthetic derivatives having subtly different chemical structures. These observations provide compelling evidence in favour of the existence of specific binding sites for PGRs. The stringent structure-activity relationships described demand that the molecular recognition of these sites must be precise, and this feature is most compatible with the receptor being a protein. Hormone receptor proteins have been isolated and characterized from animal cells, and their discovery has been frequently cited in support of the hypothesis that similar sites must exist in plants. The accuracy of this analogy remains to be seen.
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Further reading
Venis, M.A. (1987) Hormone receptor sites and the study of plant development. In Hormone Action in Plant Development — a Critical Appraisal, eds. G.V. Hoad, J.R. Lenton, M.B. Jackson and R.K. Atkin, Butterworth, London, 53–61.
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© 1988 Blackie and Son Ltd
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Roberts, J.A., Hooley, R. (1988). Receptors — Sites of Perception or Deception?. In: Plant Growth Regulators. Tertiary Level Biology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7592-4_9
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DOI: https://doi.org/10.1007/978-1-4615-7592-4_9
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