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Original Articles

Remarks on the chemistry and ultrastructure of the cell wall of some Palaeozoic Leiospheres

Pages 221-228 | Accepted 27 Sep 1967, Published online: 06 Jan 2010
 

Abstract

The present paper deals with the chemistry and ultrastructure of the cell wall of Tasmanites punctatus Newton, Tasmanites erraticus Eisenack and undetermined species of Leiosphaeridia Eisenack. Infra-red microspectrometry has revealed absorption bands interpreted as being due to the presence of COOH, CH2 and CH3 groups. Ultrastructural differences are shown between T. punctatus, T. erraticus and Leiosphaeridia.

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