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Four hundred years of cork imaging: New advances in the characterization of the cork structure

Kevin Crouvisier-Urion 1, 2 Julie Chanut 1, 2 Aurélie Lagorce 1, 2 Pascale Winckler 3, 4 Zi Wang 5 Pieter Verboven 6 Bart Nicolaï 5 Jeannine Lherminier 7 Eric Ferret 3 Régis Gougeon 1, 8 Jean-Pierre Bellat 2 Thomas Karbowiak 9 
3 PMB - Procédés Microbiologiques et Biotechnologiques
PAM - Procédés Alimentaires et Microbiologiques, PAM - Procédés Alimentaires et Microbiologiques [Dijon]
4 DImaCell - Dispositif Inter-régional d'Imagerie Cellulaire [Dijon]
PAM - Procédés Alimentaires et Microbiologiques, IBCT (ex IFR133) - Ingénierie et biologie cellulaire et tissulaire, Agroécologie [Dijon], CSGA - Centre des Sciences du Goût et de l'Alimentation [Dijon]
9 PCAV - Physico-Chimie de l'Aliment et du Vin
PAM - Procédés Alimentaires et Microbiologiques [Dijon]
Abstract : In 1665, Robert Hooke was the first to observe cork cells and their characteristic hexagonal shape, using the first optical microscope, which was invented by him at that time. With the evolution of imaging techniques, the structure of cork has been analysed with greater accuracy over time. This work presents the latest advances in the characterization of this unique material through a multiscale approach. Such investigation brings new insight into the architecture of cork, particularly the differences between the cells of the phellem and those bordering the lenticels. In the latter case, cell differentiation from the lenticular phellogen was restricted to one cell layer, which leads to a cell wall that is 10 times thicker for lenticels. They also displayed a different chemical composition because of unsuberization and a high lignin content in lenticels. Such advances in the knowledge of the structure and composition of cork cells contributes to a better understanding of the macroporosity of cork, down to the nanoscale.
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Submitted on : Tuesday, January 7, 2020 - 10:54:12 AM
Last modification on : Friday, May 20, 2022 - 9:06:42 AM

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Kevin Crouvisier-Urion, Julie Chanut, Aurélie Lagorce, Pascale Winckler, Zi Wang, et al.. Four hundred years of cork imaging: New advances in the characterization of the cork structure. Scientific Reports, Nature Publishing Group, 2019, 9 (1), pp.19682. ⟨10.1038/s41598-019-55193-9⟩. ⟨hal-02430216⟩

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