Yihiella yeosuensis gen. et sp. nov. (suessiaceae, dinophyceae), a novel dinoflagellate isolated from the coastal waters of Korea

@article{Jang2017YihiellaYG,
  title={Yihiella yeosuensis gen. et sp. nov. (suessiaceae, dinophyceae), a novel dinoflagellate isolated from the coastal waters of Korea},
  author={Se Hyeon Jang and Hae Jin Jeong and {\O}jvind Moestrup and Nam Seon Kang and Sung Yeon Lee and Kyung Ha Lee and Kyeong Ah Seong},
  journal={Journal of Phycology},
  year={2017},
  volume={53}
}
A small (7–11 μm long) dinoflagellate with thin amphiesmal plates was isolated into culture from a water sample collected in coastal waters of Yeosu, southern Korea, and examined by LM, SEM, and TEM, and molecular analyses. The hemispheric episome was smaller than the hyposome. The nucleus was oval and situated from the central to the episomal region of the cell. A large yellowish‐brown chloroplast was located at the end of the hyposome, and some small chloroplasts extended into the periphery… Expand
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Modelling and analysis of the secondary structure of its ITS2 region, and that of other species of the same genus and some representatives of the most closely related genera, indicated that the isolate represents a new species clearly separated from but related to B. cincta, supporting the establishment of the Tirez pond isolate as anew species of Biecheleria. Expand
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The molecular phylogeny based on partial LSU rDNA showed the new marine woloszynskioid dinoflagellate Dactylodinium pterobelotum nov in a basal position in the family Suessiaceae; this indicates the eyespot type B and PEV of the Borghiellaceae are ancestral states of the eyespots comprising brick‐like material and an elongate apical vesicle of the Suessuaceae. Expand
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Mixotrophy in the newly described dinoflagellate Yihiella yeosuensis: A small, fast dinoflagellate predator that grows mixotrophically, but not autotrophically.
TLDR
Evidence suggests that Y. yeosuensis may be an effective mixotrophic dinoflagellate predator on Pyramimonas and Teleaulax, and occurs abundantly during or after blooms of these two prey species. Expand
De novo transcriptome of the newly described phototrophic dinoflagellate Yihiella yeosuensis: comparison between vegetative cells and cysts
TLDR
Investigation of differences in gene expression between vegetative cells and cysts of dinoflagellates found high down-regulation of the ‘central pair’ and ‘radial spoke’ genes when Y. yeosuensis cells change from the motile to non-motile stage is possibly related to the presence of these genes in microalgae and plants in their evolution. Expand
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It is proposed that evolutionarily divergent Symbiodinium "clades" are equivalent to genera in the family Symbiodiniaceae, and formal descriptions for seven of them are provided, and the date for the earliest diversification of this family to the middle of the Mesozoic Era is amended. Expand
Fish Parasite Dinoflagellates Haidadinium ichthyophilum and Piscinoodinium Share a Recent Common Ancestor
TLDR
A 492 bp fragment of the small subunit ribosomal RNA (SSU rRNA) from preserved H. ichthyophilum cysts is characterized, strongly supporting the inclusion of H. ______ within the Suessiales. Expand
Interactions between the Newly Described Small‐ and Fast‐Swimming Mixotrophic Dinoflagellate Yihiella yeosuensis and Common Heterotrophic Protists
TLDR
The mixotroph Yihiella yeosuensis is a small‐ and fast‐swimming dinoflagellate that might have an advantage over its competitors due to its low mortality rate, and interactions between it and 11 heterotrophic protists were explored. Expand
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TLDR
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