• Richard G. Kessel
  • Ching Y. Shih


The bacteria are probably the simplest cellular organisms. Individual bacteria are visible only under a microscope and measure less than .8 µm in length and as small as 0.5 µm wide. However, the weight of the total number of bacteria in the world exceeds that of all other organisms. It has been calculated that there may be 1000000 to 50000000 bacteria per gram of top soil.


Amniotic Fluid Paneth Cell Axial Filament Intercellular Bridge Muramic Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Erlandsen, S.L., and Chase, D.G.: “Paneth cell function: Phagocytosis and intracellular digestion of intestinal microorganisms. II. Spiral microorganism.” J. Ultrastruct. Res. 41, 319–333 (1972).CrossRefGoogle Scholar


  1. Galask, R.P., Larsen, B., and Synder, I. S.: “ Amniotic fluid induced surface ultramicrocytology of Escherichia coli.” Amer. J. Obstet. Gynecol. In press.Google Scholar
  2. Larsen, B., Schlievert, P., and Galask, R.P.: “The spectrum of antibacterial activity of human amniotic fluid determined by scanning electron microscopy.” Am. J. Obstet. Gynecol. 118, 921–926 (1974).Google Scholar

Copyright information

© Springer-Verlag Berlin · Heidelberg 1976

Authors and Affiliations

  • Richard G. Kessel
    • 1
  • Ching Y. Shih
    • 2
  1. 1.Department of ZoologyThe University of IowaIowa CityUSA
  2. 2.Scanning Electron Microscope LaboratoryThe University of IowaIowa CityUSA

Personalised recommendations