The role of neurohumors in early embryogenesis

ABSTRACT In a previous paper (Buznikov, Chudakova & Zvezdina, 1964) it has been reported that serotonin (5-hydroxytryptamine, 5-HT) may be involved in early embryogenesis in various groups of animals. This conclusion was confirmed by Baker’s recent publication (Baker, 1965) concerning 5-HT synthesis in Xenopus laevis embryos.