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. 2017 Jul 19;8:15902. doi: 10.1038/ncomms15902

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Copyright © 2017, The Author(s)

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Bright field microscopy images of NSF micrococoons: (a) spheres, (b) cylinders, (c) short fibres, (d) thin fibres and (e) thick fibres. Scale bar, 5 μm. Images of micrococoon structures placed between crossed polarizers: (f) sphere, (g) cylinder, (h) thick fibre, (i) thin fibre. Scale bar, 10 μm. 3D reconstructions of confocal images are shown for: (j) a sphere, (k) a cylinder, (l) a thin fibre, (m) a thick fibre. The z-stack central cut images are shown in the inserts. Scale bar, 10 μm.