Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso


  • Emmanuelle J. Javaux
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_1868-3


The ultrastructure of an object or fossil is its fine structure at the micrometer and nanometer scales. The term ultrastructure is used to describe the fine structure of a microfossil cell wall, which can be composed of one or several organic layers of various textures and compositions. It is also used in biology of extant organisms to describe the various components of the cell interior, such as nucleus, organelles, internal membranes, and vesicles. The most common technique used to study ultrastructure is transmission electron microscopy.

See Also


Electron Microscopy Transmission Electron Microscopy Cell Wall Fine Structure Bioorganic Chemistry 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Geology Department, Palaeobiogeology-Palaeobotany-PalaeopalynologyUniversity of LiègeLiègeBelgium