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Botanica Marina

Editor-in-Chief: Dring, Matthew J.

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Dictyota dolabellana sp. nov. (Dictyotaceae, Phaeophyceae) based on morphological and chemical data

Joel Campos De Paula
  • 1Programa de Pós-Graduação em Ciências Biológicas (Botânica), Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 20940-040, Brazil and present address: Departamento de Biologia Vegetal, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, PHLC, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, 20550-013, Brazil.
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Ludmila Bomeny Bueno
  • 2Programa de Pós-Graduação em Química Orgânica, Universidade Federal Fluminense, Instituto de Química, Departamento de Química Orgânica, Niterói, Rio de Janeiro, 24001-970, Brazil
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Izabel Christina de Palmer Paixão Frugulhetti
  • 3Universidade Federal Fluminense, Instituto de Biologia, Departamento de Biologia Celular e Molecular, Niterói, Rio de Janeiro, 24001-970, Brazil
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/ Yocie Yoneshigue-Valentin
  • 4Departamento de Botânica, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, 21949-900, Brazil
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/ Valéria Laneuville Teixeira
  • 5Universidade Federal Fluminense, Instituto de Biologia, Departamento de Biologia Marinha, P.O. Box 100.644, Niterói, Rio de Janeiro, 24001-970, Brazil
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Published Online: 2007-12-12 | DOI: https://doi.org/10.1515/BOT.2007.033

Abstract

Dictyota dolabellana De Paula, Yoneshigue-Valentin et Teixeira is a new species of Dictyotaceae from the South Atlantic Ocean and the first denticulate species in which dolabellane diterpenes have been found. The major compound found in this species is the 4-hydroxy-7,8-epoxy-2-dolabellene. Until now, all populations of thalli containing dolabellane diterpenes had smooth margins and all species with denticulate margins produced prenylated guaiane and xeniane diterpenes. In addition, Dictyota dolabellana differs from other species by the presence of an inconspicuous denticulation irregularly located in the central to upper portions of the frond. Morphological and chemical data and comparison with type materials of other species clearly indicate the presence of a new species.

Keywords: chemotaxonomy; Dictyotaceae; Dictyota dolabellana sp. nov.; diterpene

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Corresponding author


Received: 2007-03-30

Accepted: 2007-09-06

Published Online: 2007-12-12

Published in Print: 2007-12-01


Citation Information: Botanica Marina, Volume 50, Issue 5/6, Pages 288–293, ISSN (Online) 14374323, ISSN (Print) 00068055, DOI: https://doi.org/10.1515/BOT.2007.033.

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