Analysis of Synaptic Microcircuits in the Mushroom Bodies of the Honeybee.
Kenyon cells
behavioral plasticity
dendritic specializations
microglomeruli
mushroom body
olfaction
projection neurons
structural synaptic plasticity
vision
Journal
Insects
ISSN: 2075-4450
Titre abrégé: Insects
Pays: Switzerland
ID NLM: 101574235
Informations de publication
Date de publication:
07 Jan 2020
07 Jan 2020
Historique:
received:
11
12
2019
revised:
02
01
2020
accepted:
03
01
2020
entrez:
16
1
2020
pubmed:
16
1
2020
medline:
16
1
2020
Statut:
epublish
Résumé
Mushroom bodies (MBs) are multisensory integration centers in the insect brain involved in learning and memory formation. In the honeybee, the main sensory input region (calyx) of MBs is comparatively large and receives input from mainly olfactory and visual senses, but also from gustatory/tactile modalities. Behavioral plasticity following differential brood care, changes in sensory exposure or the formation of associative long-term memory (LTM) was shown to be associated with structural plasticity in synaptic microcircuits (microglomeruli) within olfactory and visual compartments of the MB calyx. In the same line, physiological studies have demonstrated that MB-calyx microcircuits change response properties after associative learning. The aim of this review is to provide an update and synthesis of recent research on the plasticity of microcircuits in the MB calyx of the honeybee, specifically looking at the synaptic connectivity between sensory projection neurons (PNs) and MB intrinsic neurons (Kenyon cells). We focus on the honeybee as a favorable experimental insect for studying neuronal mechanisms underlying complex social behavior, but also compare it with other insect species for certain aspects. This review concludes by highlighting open questions and promising routes for future research aimed at understanding the causal relationships between neuronal and behavioral plasticity in this charismatic social insect.
Identifiants
pubmed: 31936165
pii: insects11010043
doi: 10.3390/insects11010043
pmc: PMC7023465
pii:
doi:
Types de publication
Journal Article
Review
Langues
eng
Subventions
Organisme : Deutsche Forschungsgemeinschaft
ID : Gr3305/2-1; Ro1177/7-1; INST 93/829-1
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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