An attempt to differentiate selection and amplification in hormone receptor development: the unicellular model.

摘要: Earlier experiments demonstrated that a membrane pattern of Protozoa behaves as receptor with respect to hormones higher organisms. This raised the possibility some selection or strengthening this unspecific is involved in evolution specific patterns individual cells In present experiments, result continual histamine treatment, phagocytotic ability population Tetrahymena was increased more intensely than after single treatment. The rate remained high for time animals were returned from histamine-containing normal medium. Thus, experimental data, it appears likely hormone appears, becomes proliferation possessing receptors. observation might not only be phylogenetic interest, but could also relevant maturation manifested ontogenetic differentiation.