Chemotaxonomy of Dictyotales (Phaeophyta). 3. The <I>Dictyopteris</I> and <I>Taonia</I> groups

Authors

  • Beatriz Grosso Fleury Universidade Federal Rural do Rio de Janeiro
  • Valeria Laneuville Teixeira Universidade Federal Fluminense
  • Alphonse Kelecom Universidade Federal Fluminense

Abstract

Brown algae of the "Dictyopteris" and "Taonia" groups have yielded about 30 terpenes that have been isolated from species of the genera Dictyopteris, Stypopodium and Taonia. Sesquiterpenes and diterpenes have been separated each into two chemical classes dipending on their biogenetic origin, mixed or not. Similarity coefficients following Sorensen have been calculated, and metabolites have been characterized by oxidation and skeleton indices. The mean values of these indices, calculated for each taxon, indicated that terpenes are suitable taxonomic markers and that the order Dictyotales should he divided into three families.

Author Biographies

Beatriz Grosso Fleury, Universidade Federal Rural do Rio de Janeiro

Master of the Institute of Chemistry, UFRRJ.
Department of General Biology, UFF - Cx.P. 100.183 - 24.000 Niterói, RJ, Brazil and Department of Organic Chemistry, UFRRJ.

Valeria Laneuville Teixeira, Universidade Federal Fluminense

Visiting Professor.
Department of General Biology - FFU - Cx.P. 100.183 - 24.000 Niterói, RJ.

Alphonse Kelecom, Universidade Federal Fluminense

Associate Professor, Department of General Biology, UFF - Cx.P. 100.183 - 24.000 Niterói, RJ.

Published

1989-01-01