Brain Organization of Apolygus lucorum: A Hemipteran Species With Prominent Antennal Lobes

Xie, Guobo; Ma, Bai-Wei; Liu, Xiaolan; Chang, Yajun; Chen, Wenbo; Li, Guoping; Feng, Huiyun; Zhang, Yongjun; Berg, Bente Gunnveig; Zhao, Xincheng

doi:10.3389/fnana.2019.00070

Cited by 4 publications

(2 citation statements)

References 54 publications

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“…Thus, we speculated that AlinOBP14 might also be expressed in the peripheral antennal lobe ( Figure 6 a). This assumption was further supported by analyzing the structure of the antennal lobe of A. lineolatus [ 28 , 29 ]. Non-injected A. lineolatus adults were used as a control ( Figure 6 b–c).…”

Section: Resultsmentioning

confidence: 98%

OBP14 (Odorant-Binding Protein) Sensing in Adelphocoris lineolatus Based on Peptide Nucleic Acid and Graphene Oxide

Tian

Zhang

et al. 2021

Insects

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OBPs play a crucial role in the recognition of ligands and are involved in the initial steps of semiochemical perception. The diverse expression of OBP genes allows them to participate in different physiological functions in insects. In contrast to classic OBPs with typical olfactory roles in A. lineolatus, the physiological functions of Plus-C OBPs remain largely unknown. In addition, detection of the expression of insect OBP genes by conventional methods is difficult in vitro. Here, we focused on AlinOBP14, a Plus-C OBP from A. lineolatus, and we developed a PNA-GO-based mRNA biosensor to detect the expression of AlinOBP14. The results demonstrated that AlinOBP14 plays dual roles in A. lineolatus. The AlinOBP14 is expressed beneath the epidermis of the vertex and gena in heads of A. lineolatus, and it functions as a carrier for three terpenoids, while AlinOBP14 is also expressed in the peripheral antennal lobe and functions as a carrier for endogenous compounds such as precursors for juvenile hormone (JH) and JHⅢ. Our investigation provides a new method to detect the expression of OBP genes in insects, and the technique will facilitate the use of these genes as potential targets for novel insect behavioral regulation strategies against the pest.

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Section: Resultsmentioning

confidence: 98%

OBP14 (Odorant-Binding Protein) Sensing in Adelphocoris lineolatus Based on Peptide Nucleic Acid and Graphene Oxide

Tian

Zhang

et al. 2021

Insects

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“…The CNS of vertebrates is far more studied, compared to their invertebrate counter species (Dunton et al 2021). Within invertebrates, mainly the CNS of adult insects has been studied (Hörner et al 1995;Dacks et al 2005;Tsuji et al 2007;Mao and Davis 2009;Bao et al 2010;Haverkamp and Smid 2014;van der Woude and Smid 2017;Tedjakumala et al 2017;Xie et al 2019), but little is known about the CNS of insect larvae. Larval instars (caterpillars) of the worldwide distributed beet armyworm Spodoptera exigua have devastating effects on economically important crop species (Dingha et al 2004;Kwon et al 2006;Robinson et al 2023).…”

Section: Chaptermentioning

confidence: 99%

Insane in the brain : How neuroparasites manipulate the insect’s brain function and behaviour

Nordstrand Gasque

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Objectives and research questionsThe main goal of this dissertation is to better understand the mechanisms behind parasite-induced behavioural alteration, including both the internal aspects of the host in the form of the role of the CNS and what happens on a molecular level, but also the outer abiotic factors that influence the expression of this behavioural alteration. Focusing on two great examples of neuroparasites, which are known to lodge onto or infect the CNS of the host, I intend to answer a range of questions and thereby hopefully aid in advancing our understanding of parasites that alter the behaviour of the host. The following research questions will be addressed in this PhD dissertation:1. Which of the abiotic factors has the biggest influence on the behavioural expression of D. dendriticum-infected F. polyctena ants in the field? (Chapter 3) 2. Where are the brain cells expressing the major nerve signalling molecules and their rate limiting enzymes located in the CNS of S. exigua caterpillars? Which differences and similarities are observable between the above-mentioned targets? (Chapter 4 3. When and where can we identify AcMNPV in the CNS of S. exigua caterpillars? And how does AcMNPV-PTP play a role in the CNS entry? (Chapter 5) 4. Which mechanisms play a role in the induction of behavioural alteration of AcMN-PV-infected S. exigua caterpillars? (Chapter 6) 5. Which similarities can be detected in the locations of AcMNPV and the different biogenic amines in the CNS of S. exigua? (Chapter 7) Outline of the thesisThe important thing is to never stop questioning.

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Miniaturization does not change conserved spider anatomy, a case study on spider Rayforstia (Araneae: Anapidae)

Propistsova,

Makarova,

Eskov

et al. 2023

Sci Rep

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Miniaturization is an evolutionary trend observed in many animals. Some arachnid groups, such as spiders and mites, demonstrate a strong tendency toward miniaturization. Some of the most miniaturized spiders belong to the family Anapidae. In this study, using light and confocal microscopy and 3D modelling, we provide the first detailed description of the anatomy of a spider of the genus Rayforstia, which is only 900 µm long. In comparison with larger spiders, Rayforstia has no branching of the midgut in the prosoma and an increased relative brain volume. In contrast to many miniature insects and mites, the spider shows no reduction of whole organ systems, no allometry of the digestive and reproductive systems, and also no reduction of the set of muscles. Thus, miniature spider shows a more conserved anatomy than insects of a similar size. These findings expand our knowledge of miniaturization in terrestrial arthropods.

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Brain Organization of Apolygus lucorum: A Hemipteran Species With Prominent Antennal Lobes

Cited by 4 publications

References 54 publications

OBP14 (Odorant-Binding Protein) Sensing in Adelphocoris lineolatus Based on Peptide Nucleic Acid and Graphene Oxide

OBP14 (Odorant-Binding Protein) Sensing in Adelphocoris lineolatus Based on Peptide Nucleic Acid and Graphene Oxide

Insane in the brain : How neuroparasites manipulate the insect’s brain function and behaviour

Miniaturization does not change conserved spider anatomy, a case study on spider Rayforstia (Araneae: Anapidae)

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