Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

Pollen Purification and Fractionation by Equilibrium Density Gradient Centrifugation

Mark Forster and John R. Flenley
Palynology
Vol. 17 (1993), pp. 137-155
Stable URL: http://www.jstor.org/stable/3687792
Page Count: 19
  • More info
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
Pollen Purification and Fractionation by Equilibrium Density Gradient Centrifugation
Preview not available

Abstract

Density gradient centrifugation was used to fractionate mixtures containing either modern or fossil palynomorphs. In addition it removed detrital organic material from fossil preparations without significantly altering palynomorph proportions. A taxonomic aspect to fractionation was observed: it was possible to separate both fossil and modern mixtures of palynomorphs into groups, some of which were composed of related taxa. We conclude that density gradient centrifugation could be used to extract palynomorphs from the organic matrix, and/or to isolate individual groups of taxa.

Page Thumbnails

  • Thumbnail: Page 
[137]
    [137]
  • Thumbnail: Page 
138
    138
  • Thumbnail: Page 
139
    139
  • Thumbnail: Page 
140
    140
  • Thumbnail: Page 
[141]
    [141]
  • Thumbnail: Page 
142
    142
  • Thumbnail: Page 
143
    143
  • Thumbnail: Page 
144
    144
  • Thumbnail: Page 
[145]
    [145]
  • Thumbnail: Page 
146
    146
  • Thumbnail: Page 
[147]
    [147]
  • Thumbnail: Page 
148
    148
  • Thumbnail: Page 
[149]
    [149]
  • Thumbnail: Page 
150
    150
  • Thumbnail: Page 
[151]
    [151]
  • Thumbnail: Page 
152
    152
  • Thumbnail: Page 
[153]
    [153]
  • Thumbnail: Page 
154
    154
  • Thumbnail: Page 
155
    155