The role of the peripheral environment of neuronal receptors in stimuli perception by insects’ sense organs: Facts and hypothesesстатья
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Дата последнего поиска статьи во внешних источниках: 4 июня 2021 г.
Аннотация:The role of intermediate substrates represented by morphological structures or chemical compounds, located between the information carrier (stimulus) and the dendrite receptors of insect sensory organs is considered on example of olfactory, visual, mechanical, hygro-, and thermoreceptors. Intermediate substrates in olfactory sensillae are represented by their cuticular regions, pores or pore-tubular system, sensillum lymph, and odorant-binding proteins. Intermediate structures also imply articular membrane (mechanoreceptor hairs), tympanic membrane (hearing organs), mineral statoliths (gravity receptors), iron oxide nanoparticles (magnetic field receptors), matrix surrounding the dendrites (hygroreceptors), microparticles associated with the dendrite membrane (thermoreceptors), and non-sclerotized mesocuticle (infrared receptors). There are two stages in propagation of a signal that is perceived by sense organs of most modalities: 1) before signal contacts the peripheral environment (substance or structure); 2) after signal contacts the peripheral environment. Besides, a signal of one modality on the first stage of its propagation can be replaced by a signal of other modality at the second stage of propagation, as, for example, in hygro- or thermoreceptors, since the primary stimulus (moisture, heat/cold, infrared radiation) is replaced by a mechanical effect on the dendrite membrane of its peripheral environment. The mechanisms of signal modality substitution in many sense organs, as well as the role of odorant-binding proteins and pore tubes in olfactory sensillae have not been fully elucidated and require further study.