Chemosensory Systems in Lower Organisms: Correlations with Internal Receptor Systems for Neurotransmitters and Hormones

摘要: The presence of specific chemical substances in the environment evokes behavioral responses many lower eukaryotic organisms such as protozoans and invertebrates (for reviews, see Mackie Grant 1974, Gleeson 1978, Atema 1985, Carr 1987). Beginning with Haldane (1954), investigators have noted that several evoking these life forms include some very same compounds function internally neurotransmitters, modulators, or hormones (see Table 1). Hence, acetylcholine adenine nucleotides may evoke when present an external aquatic just they physiological a synaptic cleft.