Plagiodinium ballux sp. nov. (Dinophyceae), a deep (36 m) sand dwelling dinoflagellate from subtropical Japan

Yamada, Norico; Dawut, Mahmutjan; Terada, Ryuta; Horiguchi, Takeo

Plagiodinium ballux sp. nov. (Dinophyceae), a deep (36 m) sand dwelling dinoflagellate from subtropical Japan

Dateien

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Datum

2019

Autor:innen

Yamada, Norico

Dawut, Mahmutjan

Terada, Ryuta

Horiguchi, Takeo

DOI (zitierfähiger Link)

https://doi.org/10.1111/pre.12336

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Phycological Research. 2019, 67(1), pp. 12-20. ISSN 1322-0829. eISSN 1440-1835. Available under: doi: 10.1111/pre.12336

Zusammenfassung

A new species of marine sand‐dwelling dinoflagellate, Plagiodinium ballux N. Yamada, Dawut, R. Terada & T. Horiguchi is described from a deep (36 m) seafloor off Takeshima Island, Kagoshima Prefecture, Japan in the subtropical region of the northwest Pacific. The species is thecate and superficially resembles species of Prorocentrum, but possesses an extremely small epitheca. The cell varies from ovoid to a rounded square, and is small (15.0–22.5 μm in length) and laterally compressed. The thecal plates are smooth and the thecal plate arrangement (Po, 1′, 0a, 5″, 5C, 2S, 5‴, 0p, 1″″) is similar to that of Plagiodinium belizeanum, the type species of the genus. Molecular phylogenetic analyses based on SSU rDNA and partial LSU rDNA reveal that the dinoflagellate is closely related to P. belizeanum, but it can be clearly distinguished by its size and cell shape. This suite of morphological and molecular differences leads to the conclusion that this deep benthic dinoflagellate represents a new species of the genus Plagiodinium.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Benthic, large subunit rDNA, morphology, phylogeny, small subunit rDNA, taxonomy, ultrastructure

Zitieren

ISO 690

YAMADA, Norico, Mahmutjan DAWUT, Ryuta TERADA, Takeo HORIGUCHI, 2019. Plagiodinium ballux sp. nov. (Dinophyceae), a deep (36 m) sand dwelling dinoflagellate from subtropical Japan. In: Phycological Research. 2019, 67(1), pp. 12-20. ISSN 1322-0829. eISSN 1440-1835. Available under: doi: 10.1111/pre.12336

BibTex

@article{Yamada2019Plagi-45067,
  year={2019},
  doi={10.1111/pre.12336},
  title={Plagiodinium ballux sp. nov. (Dinophyceae), a deep (36 m) sand dwelling dinoflagellate from subtropical Japan},
  number={1},
  volume={67},
  issn={1322-0829},
  journal={Phycological Research},
  pages={12--20},
  author={Yamada, Norico and Dawut, Mahmutjan and Terada, Ryuta and Horiguchi, Takeo}
}

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    <dcterms:abstract xml:lang="eng">A new species of marine sand‐dwelling dinoflagellate, Plagiodinium ballux N. Yamada, Dawut, R. Terada &amp; T. Horiguchi is described from a deep (36 m) seafloor off Takeshima Island, Kagoshima Prefecture, Japan in the subtropical region of the northwest Pacific. The species is thecate and superficially resembles species of Prorocentrum, but possesses an extremely small epitheca. The cell varies from ovoid to a rounded square, and is small (15.0–22.5 μm in length) and laterally compressed. The thecal plates are smooth and the thecal plate arrangement (Po, 1′, 0a, 5″, 5C, 2S, 5‴, 0p, 1″″) is similar to that of Plagiodinium belizeanum, the type species of the genus. Molecular phylogenetic analyses based on SSU rDNA and partial LSU rDNA reveal that the dinoflagellate is closely related to P. belizeanum, but it can be clearly distinguished by its size and cell shape. This suite of morphological and molecular differences leads to the conclusion that this deep benthic dinoflagellate represents a new species of the genus Plagiodinium.</dcterms:abstract>
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