Ferocia gen. nov., a new centric diatom genus (Bacillariophyceae) from the sub-Antarctic region
| Autor: | Barbora Chattová, Bart Van de Vijver, Marc Lebouvier, Václav Houk |
|---|---|
| Přispěvatelé: | University of Antwerp (UA), Masaryk University [Brno] (MUNI), Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Institute of Botany of the Czech Academy of Sciences (IB / CAS), Czech Academy of Sciences [Prague] (CAS), French Polar Institute Paul-Emile Victor [136], Academy of Sciences of the Czech Republic [AV0Z60050516], Czech Science Foundation [205/05/0204], Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine sub-Antarctic Region Lava Plant Science 01 natural sciences Mantle (geology) 03 medical and health sciences Paleontology Algae Genus Melosira 14. Life underwater Biology Ecology Evolution Behavior and Systematics geography geography.geographical_feature_category biology 010604 marine biology & hydrobiology new genus 030108 mycology & parasitology centric diatoms biology.organism_classification Ferocia Moss Diatom Taxon Archipelago [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
| Zdroj: | Phytotaxa Phytotaxa, 2017, 332 (1), pp.22-30. ⟨10.11646/phytotaxa.332.1.2⟩ Phytotaxa, Magnolia Press 2017, 332 (1), pp.22-30. ⟨10.11646/phytotaxa.332.1.2⟩ |
| ISSN: | 1179-3155 1179-3163 |
| DOI: | 10.11646/phytotaxa.332.1.2⟩ |
| Popis: | A new centric diatom genus, Ferocia Van de Vijver & Houk gen. nov. is described based on Melosira setosa Greville. Several samples collected in lava tunnels on Ile Amsterdam, a small isolated, volcanic island in the southern Indian Ocean where the latter taxon dominated the diatom flora, were investigated. The new genus is characterized by having heavily silicified, spherical frustules, connected into long chains by large, complex linking spines. Valves are dome-shaped with a high mantle with rounded to irregularly shaped areolae. Numerous small rimoportulae forming a marginal ring are present near the mantle edge. The cingulum is composed of a large number of narrow, open copulae. A second species, Ferocia ninae Van de Vijver & Houk sp. nov., is described from the nearby Crozet archipelago. Besides the typical features of the genus Ferocia, the rimoportulae in F. ninae are almost equidistant, the valves have a relatively low valve height and the spines are relatively small. Both F. ninae and F. setosa were found in shaded lava tunnels with a sparse moss vegetation. The two species are illustrated and discussed based on detailed LM and SEM observations. |
| Databáze: | OpenAIRE |
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