Reducing the risk of rostral bending failure in Curculio Linnaeus, 1758

Jansen, M.; Niverty, Sridhar; Chawla, Nikhilesh; Franz, Nico M.

doi:10.1016/j.actbio.2021.03.029

Cited by 5 publications

(3 citation statements)

References 61 publications

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“…The latter being dependent on fiber orientation and layer thickness of the cuticle (Vincent & Wegst, 2004), which is not recognized by CLSM. Also, the thickness of the endocuticle might influence the maximum intensity projections of the CLSM, possibly leading to misinterpretations of the resilin content of the exocuticle (Jansen et al, 2021). Thus, the CLSM‐results herein are based on correlations found in studies combining the qualitative analysis of CLSM described originally in Michels and Gorb (2012) with quantitative measurements from atomic force microscopy (e.g., Peisker et al, 2013) or nano indentation (e.g., Li et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

Section: Confocal Laser Scanning Microscopymentioning

confidence: 99%

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The mouthparts of the adult dragonfly Anax imperator (Insecta: Odonata), functional morphology and feeding kinematics

Josten

Gorb

Büsse

2022

Journal of Morphology

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Insects evolved differently specialized mouthparts. We study the mouthparts of adult Anax imperator, one of the largest odonates found in Central Europe. Like all adult dragonflies, A. imperator possesses carnivorous-type of biting-chewing mouthparts. To gain insights into the feeding process, behavior and kinematics, living specimens were filmed during feeding using synchronized high-speed videography. Additionally, the maximum angles of movement were measured using a measuring microscope and combined with data from micro-computed tomography.The resulting visualizations of the 3D-geometry of each mouthpart were used to study their anatomy and complement the existing descriptive knowledge of muscles in A. imperator to date. Furthermore, confocal laser scanning microscopy-projections allow for estimation of differences in the material composition of the mouthparts' cuticle. By combining all methods, we analyze possible functions and underlying biomechanics of each mouthpart. We also analyzed the concerted movements of the mouthparts; unique behavior of the mouthparts during feeding is active participation by the labrum and distinct movement by the maxillary laciniae. We aim to elucidate the complex movements of the mouthparts and their functioning by combining detailed information on (1) in vivo movement behavior (supplemented with physiological angle approximations), (2) movement ability provided by morphology (morphological movement angles), (3) 3D-anatomy, and (4) cuticle composition estimates.

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Section: Methodsmentioning

confidence: 99%

Section: Confocal Laser Scanning Microscopymentioning

confidence: 99%

The mouthparts of the adult dragonfly Anax imperator (Insecta: Odonata), functional morphology and feeding kinematics

Josten

Gorb

Büsse

2022

Journal of Morphology

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“…These multifaceted functions are intricately linked to cuticle's diverse mechanical properties such as elasticity, rigidity and flexibility (Degtyar et al, 2014; Vincent & Wegst, 2004; Wang, Jeon, et al, 2020). These mechanical attributes have not only contributed to the cuticle's diverse roles but have also inspired a range of biomimetic applications in the fields of engineering and material science (Jansen et al, 2021; Watson et al, 2017; Zhang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Genome‐wide identification of cuticle protein superfamily in Frankliniella occidentalis provide insight into the control of both insect vectors and plant virus

Zheng,

Feng,

et al. 2024

Arch Insect Biochem Physiol

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The structural cuticle proteins (CPs) play important roles in the development and fitness of insects. However, knowledge about CP gene superfamily is limited in virus‐transmitting insect vectors, although its importance on transmission of plant virus has been gradually emphasized. In this study, the genome‐wide identification of CP superfamily was conducted in western flower thrips Frankliniella occidentalis that is the globally invasive pest and plant virus vector pest. The pest transmits notorious tomato spotted wilt virus (TSWV) around the world, causing large damage to a wide array of plants. One hundred and twenty‐eight F. occidentalis CP genes (FoCPs) were annotated in this study and they were classified into 10 distinct families, including 68 CPRs, 16 CPAP1s, 6 CPAP3s, 2 CPCFCs, 10 Tweedles, 4 CPFs, 16 CPLCPs, and 6 CPGs. The comprehensive analysis was performed including phylogenetic relationship, gene location and gene expression profiles during different development stages of F. occidentalis. Transcriptome analysis revealed more than 30% FoCPs were upregulated at least 1.5‐fold when F. occidentalis was infected by TSWV, indicating their potential involvement in TSWV interactions. Our study provided an overview of F. occidentalis CP superfamily. The study gave a better understand of CP's role in development and virus transmission, which provided clues for reducing viral damages through silencing CP genes in insect vectors.

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PLA Double‐Spirals Offering Enhanced Spatial Extensibility

Jafarpour,

Gorb

2024

Macro Materials & Eng

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Inspired by natural spiral curves, this study aims to present a strategy to find a compromise between extensibility and load‐bearing capacity in structures made from polylactic acid (PLA) as a brittle material. Herein, four geometrically distinct double‐spiral modules are fabricated using a three‐dimensional (3D) printer and subjected to tension, in‐plane sliding, and out‐of‐plane sliding to assess both their in‐plane and out‐of‐plane mechanical performance. Subsequently, a modular spiral‐based metastructure is developed and tested under tension in two different directions. The results show that the maximum extension of the modules under different loading scenarios varies from 9 to 86 mm, while their load‐bearing capacity ranges between 18 and 78 N. These significant variations highlight the considerable influence of both geometry and loading conditions on the mechanical behavior of the double‐spiral modules. Moreover, the 250% horizontal and 130% vertical extensibility of the metastructure emphasize the importance of the spatial orientation of the modules in determining the efficiency of spiral‐based metastructures. This study suggests that double‐spirals with adjustable mechanical properties, if designed rationally, can offer a promising strategy to address the limited deformability of materials like PLA, and when arranged in specific spatial configurations, they can contribute to the development of energy‐dissipative metastructures with enhanced extensibility.

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Reducing the risk of rostral bending failure in Curculio Linnaeus, 1758

Cited by 5 publications

References 61 publications

The mouthparts of the adult dragonfly Anax imperator (Insecta: Odonata), functional morphology and feeding kinematics

The mouthparts of the adult dragonfly Anax imperator (Insecta: Odonata), functional morphology and feeding kinematics

Genome‐wide identification of cuticle protein superfamily in Frankliniella occidentalis provide insight into the control of both insect vectors and plant virus

PLA Double‐Spirals Offering Enhanced Spatial Extensibility

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