Ultrastructure

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The ultrascructure of a single bacterial cell (Bacillus subtilis). The scale bar is 200 nm.
The ultrascructure of a single bacterial cell (Bacillus subtilis). The scale bar is 200 nm.

Ultrastructure (or ultra-structure) is the detailed structure of a biological specimen, such as a cell, tissue, or organ, that can be observed by electron microscopy. It refers in general to the study of cellular structures that are too small to be seen with an optical microscope.

Ultrastructure, along with molecular phylogeny, has often been a reliable (that is phylogenetic) way of classifying organisms.[1]

Ultra-Structure is also the name given to a notational system for representing complex rules. [2]

[edit] References

  1. ^ Laura Wegener Parfrey, Erika Barbero, Elyse Lasser, Micah Dunthorn, Debashish Bhattacharya, David J Patterson, and Laura A Katz (2006 December). "Evaluating Support for the Current Classification of Eukaryotic Diversity". PLoS Genet. 2 (12): e220. doi:10.1371/journal.pgen.0020220. 
  2. ^ Long, J., and Denning, D., Ultra-Structure: A design theory for complex systems and processes. In Communications of the ACM (January 1995)
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