Perspectives of micro-mechanical assessment of the apple fruit cuticle

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Original languageEnglish
Pages12
Publication statusPublished - 12 Mar 2024
EventSPIE Photonics West 2024: Photonic Technologies in Plant and Agricultural Science - San Francisco, United States
Duration: 27 Jan 20241 Feb 2024

Conference

ConferenceSPIE Photonics West 2024
Country/TerritoryUnited States
CitySan Francisco
Period27 Jan 20241 Feb 2024

Abstract

The cuticle is a natural polymeric membrane that covers the surface of aerial organs (including fruit) of terrestrial plants. The cuticle membrane mainly consists of cutins, waxes, and polysaccharides and serves as a protective barrier against water movement, adverse environmental conditions and the invasion of pathogens. Fulfilling its barrier function requires an intact cuticle. During fruit development, the cuticle is stretched and heavily stressed as the fruits grow exponentially in phases. In apple fruit, cutin and wax are synthesized constitutively throughout development. The newly synthesized cutin is deposited on the cuticle’s inner side. This results in a gradient of age and strain in the cuticle from outside (older, more strained) to inside (younger, less strained). Wax is deposited mainly within the cutin network and fixes the elastic strain of the cutin network. Studies indicated that wax concentration among the different layers of the cutin also varies with more wax in the outer cuticular proper and less in the inner cuticle layer. 1, 2 As a result, the cuticle of mature apple fruits exhibits a complex micromechanical structure. Characterizing this structure poses challenges that cannot be overcome using conventional tensile testing methods. In this study, we employed a Brillouin scattering setup to investigate the micromechanical structure of the cuticle.

Keywords

    Brillouin light scattering, biomechanics, cuticle, horticultural science, spectroscopy

ASJC Scopus subject areas

Cite this

Perspectives of micro-mechanical assessment of the apple fruit cuticle. / Landes, Timm; Bethge, Hans; Zabic, Miroslav et al.
2024. 12 Paper presented at SPIE Photonics West 2024, San Francisco, California, United States.

Research output: Contribution to conferencePaperResearchpeer review

Landes, T, Bethge, H, Zabic, M, Heinemann, D (ed.) & Heinemann, D (ed.) 2024, 'Perspectives of micro-mechanical assessment of the apple fruit cuticle', Paper presented at SPIE Photonics West 2024, San Francisco, United States, 27 Jan 2024 - 1 Feb 2024 pp. 12. https://doi.org/10.1117/12.3001528
Landes, T., Bethge, H., Zabic, M., Heinemann, D. (Ed.), & Heinemann, D. (Ed.) (2024). Perspectives of micro-mechanical assessment of the apple fruit cuticle. 12. Paper presented at SPIE Photonics West 2024, San Francisco, California, United States. https://doi.org/10.1117/12.3001528
Landes T, Bethge H, Zabic M, Heinemann D, (ed.), Heinemann D, (ed.). Perspectives of micro-mechanical assessment of the apple fruit cuticle. 2024. Paper presented at SPIE Photonics West 2024, San Francisco, California, United States. doi: 10.1117/12.3001528
Landes, Timm ; Bethge, Hans ; Zabic, Miroslav et al. / Perspectives of micro-mechanical assessment of the apple fruit cuticle. Paper presented at SPIE Photonics West 2024, San Francisco, California, United States.
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note = "Funding Information: The authors thank Bishnu Khanal and Moritz Knoche for the preparation of the apple fruit cuticle. This work is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany\u2019s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453) and Project ID 525156988.; SPIE Photonics West 2024 : Photonic Technologies in Plant and Agricultural Science ; Conference date: 27-01-2024 Through 01-02-2024",
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By the same author(s)