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- Nitzschia biundulata sp. Nov. a new sea ice diatom (bacillariophyceae) from the ross sea, Antarctica

Journal article
Authors Adil Y Al-Handal
J. Zimmerman
R. Jahn
Anders Torstensson
Angela Wulff
Published in Nova Hedwigia: Zeitschrift für Kryptogamenkunde
Volume 108
Issue 3-4
Pages 290
ISSN 0029-5035
Publication year 2019
Published at Department of Biological and Environmental Sciences
Pages 290
Language - English
Links doi.org/10.1127/nova_hedwigia/2019/...
Subject categories Marine ecology

Abstract

- A new marine diatom species, Nitzschia biundulata is described. This species was collected and isolated from the ice cover in the Amundsen Sea, Antarctica during the Austral summer, 2011. The description is based on light and scanning electron microscopes examination as well as molecular analysis including 18S SSU rRNA and rbcL. Morphologically, N. biundulata is characterized by having two extensions of the valve margin in a form of two unequal undulations that are not seen in other taxa of the genus. Molecular sequence data indicated similarity with several Nitzschia species such as Nitzschia apiculata, N. palea, N. capitellata as well as Bacillaria paxillifer. Interestingly, large similarity was found with endosymbiont diatom associated with the dinophyte Peridinium balticum. A comparison with the most related species is provided. © 2019 J. Cramer in Gebrüder Borntraeger Verlagsbuchhandlung, Stuttgart, Germany.

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