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Insects
Special Issues
Biogenic Amines and Behavior
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Biogenic Amines and Behavior

A special issue of Insects (ISSN 2075-4450). This special issue belongs to the section "Insect Molecular Biology and Genomics".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 16947

Special Issue Editors

Prof. Dr. Ken Sasaki

E-Mail Website
Guest Editor
Graduate School of Agriculture, Tamagawa University, Machida, Tokyo 194-8610, Japan
Interests: biogenic amine; division of labor; reproduction; social insect
Dr. Ken-ichi Harano

E-Mail Website
Guest Editor
Honeybee Science Research Center, Tamagawa University, Machida, Tokyo 194-8610, Japan
Interests: bees; behavioral adaptation; biogenic amine; foraging; thermoregulation

Special Issue Information

Dear colleagues,

Biogenic amines are neuroactive substances controlling responses of sensory neurons, activities of neurons in a particular neural circuit in the central nervous system, and movements of muscles, resulting in modification of behavior. They have also other functions in insects, activating peripheral tissues as hormones, or supplying materials for sclerotization of cuticle, pigmentation, and melanization. Recently, a monoamine regulatory system to activate monoamine syntheses in aminergic neurons and signaling pathways of monoamine receptors in target cells has gradually been elucidated in diverse insect species. Comprehensive approaches to the monoamine regulatory system contribute to an understanding of behavioral control at multilevels from genes to an individual. In this Special Issue, we collect basic and applied research papers as well as mini reviews focusing on behavior mediated by biogenic amines. Submission of papers focusing on other physiological phenomena involved in biogenic amines is also welcome.

Prof. Dr. Ken Sasaki
Dr. Ken-ichi Harano
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Insects is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • behavior
  • enzyme
  • modulation
  • metabolism
  • neuromodulator
  • neurohormone
  • receptor
  • reproduction

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Published Papers (4 papers)

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Research

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12 pages, 1005 KiB  
Article
Age-Dependent Honey Bee Appetite Regulation Is Mediated by Trehalose and Octopamine Baseline Levels
by İrem Akülkü, Saleh Ghanem, Elif Filiztekin, Guntima Suwannapong and Christopher Mayack
Insects 2021, 12(10), 863; https://doi.org/10.3390/insects12100863 - 24 Sep 2021
Cited by 7 | Viewed by 3304
Abstract
There are multiple feedback mechanisms involved in appetite regulation, which is an integral part of maintaining energetic homeostasis. Older forager honey bees, in comparison to newly emerged bees and nurse bees, are known to have highly fluctuating hemolymph trehalose levels, higher appetite changes [...] Read more.
There are multiple feedback mechanisms involved in appetite regulation, which is an integral part of maintaining energetic homeostasis. Older forager honey bees, in comparison to newly emerged bees and nurse bees, are known to have highly fluctuating hemolymph trehalose levels, higher appetite changes due to starvation, and higher octopamine levels in the brain. What remains unknown is if the hemolymph trehalose and octopamine levels interact with one another and how this varies as the bee ages. We manipulated trehalose and octopamine levels across age using physiological injections and found that nurse and forager bees increase their appetite levels due to increased octopamine levels in the brain. This is further enhanced by lower trehalose levels in the hemolymph. Moreover, nurse bees with high octopamine levels in the brain and low trehalose levels had the same appetite levels as untreated forager bees. Our findings suggest that the naturally higher levels of octopamine as the bee ages may result in higher sensitivity to fluctuating trehalose levels in the hemolymph that results in a more direct way of assessing the energetic state of the individual. Consequently, forager bees have a mechanism for more precise regulation of appetite in comparison to newly emerged and nurse bees. Full article
(This article belongs to the Special Issue Biogenic Amines and Behavior)
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Review

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18 pages, 2726 KiB  
Review
The Role of Biogenic Amines in Social Insects: With a Special Focus on Ants
by Francesca Barbero, Giuseppe Mannino and Luca Pietro Casacci
Insects 2023, 14(4), 386; https://doi.org/10.3390/insects14040386 - 16 Apr 2023
Cited by 8 | Viewed by 3169
Abstract
Eusociality represents the higher degree of interaction in insects. This complex social structure is maintained through a multimodal communication system that allows colony members to be flexible in their responses, fulfilling the overall society’s needs. The colony plasticity is supposedly achieved by combining [...] Read more.
Eusociality represents the higher degree of interaction in insects. This complex social structure is maintained through a multimodal communication system that allows colony members to be flexible in their responses, fulfilling the overall society’s needs. The colony plasticity is supposedly achieved by combining multiple biochemical pathways through the neuromodulation of molecules such as biogenic amines, but the mechanisms through which these regulatory compounds act are far from being fully disentangled. Here, we review the potential function of major bioamines (dopamine, tyramine, serotine, and octopamine) on the behavioral modulation of principal groups of eusocial Hymenoptera, with a special focus on ants. Because functional roles are species- and context-dependent, identifying a direct causal relationship between a biogenic amine variation and behavioral changes is extremely challenging. We also used a quantitative and qualitative synthesis approach to summarize research trends and interests in the literature related to biogenic amines of social insects. Shedding light on the aminergic regulation of behavioral responses will pave the way for an entirely new approach to understanding the evolution of sociality in insects. Full article
(This article belongs to the Special Issue Biogenic Amines and Behavior)
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10 pages, 3290 KiB  
Review
Sex-Specific Regulatory Systems for Dopamine Production in the Honey Bee
by Ken Sasaki and Tomohiro Watanabe
Insects 2022, 13(2), 128; https://doi.org/10.3390/insects13020128 - 25 Jan 2022
Cited by 10 | Viewed by 4503
Abstract
Dopamine has multiple functions in the modulation of social behavior and promotion of reproduction in eusocial Hymenoptera. In the honey bee, there are sex-specific differences in the regulation of dopamine production in the brain. These different dopaminergic systems might contribute to the maintenance [...] Read more.
Dopamine has multiple functions in the modulation of social behavior and promotion of reproduction in eusocial Hymenoptera. In the honey bee, there are sex-specific differences in the regulation of dopamine production in the brain. These different dopaminergic systems might contribute to the maintenance of sex-specific behaviors and physiology. However, it is still not fully understood how the dopaminergic system in the brain is regulated by endocrinal factors and social stimuli in the colony. In this review, we focus on the regulation of dopamine production in queens, workers, and males in the honey bee. Dopamine production can be controlled by queen substance, juvenile hormone, and exogenous tyrosine from food. Queens can control dopamine production in workers via queen substance, whereas workers can manipulate the supply of tyrosine, a precursor of dopamine, to queens and males. The regulation of dopamine production through social interaction might affect the reproductive states of colony members and maintain sex-specific behaviors in unpredictable environments. Full article
(This article belongs to the Special Issue Biogenic Amines and Behavior)
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14 pages, 6172 KiB  
Review
The Insect Type 1 Tyramine Receptors: From Structure to Behavior
by Luca Finetti, Thomas Roeder, Girolamo Calò and Giovanni Bernacchia
Insects 2021, 12(4), 315; https://doi.org/10.3390/insects12040315 - 1 Apr 2021
Cited by 23 | Viewed by 4742
Abstract
Tyramine is a neuroactive compound that acts as neurotransmitter, neuromodulator, and neurohormone in insects. Three G protein-coupled receptors, TAR1-3, are responsible for mediating the intracellular pathway in the complex tyraminergic network. TAR1, the prominent player in this system, was initially classified as an [...] Read more.
Tyramine is a neuroactive compound that acts as neurotransmitter, neuromodulator, and neurohormone in insects. Three G protein-coupled receptors, TAR1-3, are responsible for mediating the intracellular pathway in the complex tyraminergic network. TAR1, the prominent player in this system, was initially classified as an octopamine receptor which can also be activated by tyramine, while it later appeared to be a true tyramine receptor. Even though TAR1 is currently considered as a well-defined tyramine receptor and several insect TAR1s have been characterized, a defined nomenclature is still inconsistent. In the last years, our knowledge on the structural, biochemical, and functional properties of TAR1 has substantially increased. This review summarizes the available information on TAR1 from different insect species in terms of basic structure, its regulation and signal transduction mechanisms, and its distribution and functions in the brain and the periphery. A special focus is given to the TAR1-mediated intracellular signaling pathways as well as to their physiological role in regulating behavioral traits. Therefore, this work aims to correlate, for the first time, the physiological relevance of TAR1 functions with the tyraminergic system in insects. In addition, pharmacological studies have shed light on compounds with insecticidal properties having TAR1 as a target and on the emerging trend in the development of novel strategies for pest control. Full article
(This article belongs to the Special Issue Biogenic Amines and Behavior)
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