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A Description of Biremis panamae sp. nov., a New Diatom Species from the Marine Littoral, with an Account of the Phylogenetic Position of Biremis D.G. Mann et E.J. Cox (Bacillariophyceae).

Witkowski A, Barka F, Mann DG, Li C, Weisenborn JL, Ashworth MP, Kurzydłowski KJ, Zgłobicka I, Dobosz S - PLoS ONE (2014)

Bottom Line: Our results based on these three sources point to an evolutionary relationship between Biremis, Neidium and Scoliopleura.The unusual silicified incunabular caps present in them are known otherwise only in Muelleria, which is probably related to the Neidiaceae and Scoliotropidaceae.We also discuss the relationship between Biremis and the recently described Labellicula and Olifantiella.

View Article: PubMed Central - PubMed

Affiliation: Palaeoceanology Unit, Faculty of Geosciences, University of Szczecin, Mickiewicza 18, PL-70-383, Szczecin, Poland.

ABSTRACT
Here we present a formal description of Biremis panamae Barka, Witkowski et Weisenborn sp. nov., which was isolated from the marine littoral environment of the Pacific Ocean coast of Panama. The description is based on morphology (light and electron microscopy) and the rbcL, psbC and SSU sequences of one clone of this species. The new species is included in Biremis due to its morphological features; i.e. two marginal rows of foramina, chambered striae, and girdle composed of numerous punctate copulae. The new species also possesses a striated valve face which is not seen in most known representatives of marine littoral Biremis species. In this study we also present the relationship of Biremis to other taxa using morphology, DNA sequence data and observations of auxosporulation. Our results based on these three sources point to an evolutionary relationship between Biremis, Neidium and Scoliopleura. The unusual silicified incunabular caps present in them are known otherwise only in Muelleria, which is probably related to the Neidiaceae and Scoliotropidaceae. We also discuss the relationship between Biremis and the recently described Labellicula and Olifantiella.

No MeSH data available.


Related in: MedlinePlus

Biremis panamae sp. nov., living cells and cleaned valves under LM.A–G. Living specimens photographed from the clonal culture. Note the two chloroplasts per cell. H–O. Cleaned material from the clonal culture. Fig. 2H–J were taken with advanced photomicroscopy system; Fig. 2K–N. were taken with phase contrast optics; Fig. 2O. was taken with differential interference contrast (DIC). Fig. 2H is a frustule in girdle view; Fig. 2I–O are valves in valve view. [Scale bars  =  10 µm; the grey bar only for Figures H–O].
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pone-0114508-g002: Biremis panamae sp. nov., living cells and cleaned valves under LM.A–G. Living specimens photographed from the clonal culture. Note the two chloroplasts per cell. H–O. Cleaned material from the clonal culture. Fig. 2H–J were taken with advanced photomicroscopy system; Fig. 2K–N. were taken with phase contrast optics; Fig. 2O. was taken with differential interference contrast (DIC). Fig. 2H is a frustule in girdle view; Fig. 2I–O are valves in valve view. [Scale bars  =  10 µm; the grey bar only for Figures H–O].

Mentions: Fig. 2A-O


A Description of Biremis panamae sp. nov., a New Diatom Species from the Marine Littoral, with an Account of the Phylogenetic Position of Biremis D.G. Mann et E.J. Cox (Bacillariophyceae).

Witkowski A, Barka F, Mann DG, Li C, Weisenborn JL, Ashworth MP, Kurzydłowski KJ, Zgłobicka I, Dobosz S - PLoS ONE (2014)

Biremis panamae sp. nov., living cells and cleaned valves under LM.A–G. Living specimens photographed from the clonal culture. Note the two chloroplasts per cell. H–O. Cleaned material from the clonal culture. Fig. 2H–J were taken with advanced photomicroscopy system; Fig. 2K–N. were taken with phase contrast optics; Fig. 2O. was taken with differential interference contrast (DIC). Fig. 2H is a frustule in girdle view; Fig. 2I–O are valves in valve view. [Scale bars  =  10 µm; the grey bar only for Figures H–O].
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4262420&req=5

pone-0114508-g002: Biremis panamae sp. nov., living cells and cleaned valves under LM.A–G. Living specimens photographed from the clonal culture. Note the two chloroplasts per cell. H–O. Cleaned material from the clonal culture. Fig. 2H–J were taken with advanced photomicroscopy system; Fig. 2K–N. were taken with phase contrast optics; Fig. 2O. was taken with differential interference contrast (DIC). Fig. 2H is a frustule in girdle view; Fig. 2I–O are valves in valve view. [Scale bars  =  10 µm; the grey bar only for Figures H–O].
Mentions: Fig. 2A-O

Bottom Line: Our results based on these three sources point to an evolutionary relationship between Biremis, Neidium and Scoliopleura.The unusual silicified incunabular caps present in them are known otherwise only in Muelleria, which is probably related to the Neidiaceae and Scoliotropidaceae.We also discuss the relationship between Biremis and the recently described Labellicula and Olifantiella.

View Article: PubMed Central - PubMed

Affiliation: Palaeoceanology Unit, Faculty of Geosciences, University of Szczecin, Mickiewicza 18, PL-70-383, Szczecin, Poland.

ABSTRACT
Here we present a formal description of Biremis panamae Barka, Witkowski et Weisenborn sp. nov., which was isolated from the marine littoral environment of the Pacific Ocean coast of Panama. The description is based on morphology (light and electron microscopy) and the rbcL, psbC and SSU sequences of one clone of this species. The new species is included in Biremis due to its morphological features; i.e. two marginal rows of foramina, chambered striae, and girdle composed of numerous punctate copulae. The new species also possesses a striated valve face which is not seen in most known representatives of marine littoral Biremis species. In this study we also present the relationship of Biremis to other taxa using morphology, DNA sequence data and observations of auxosporulation. Our results based on these three sources point to an evolutionary relationship between Biremis, Neidium and Scoliopleura. The unusual silicified incunabular caps present in them are known otherwise only in Muelleria, which is probably related to the Neidiaceae and Scoliotropidaceae. We also discuss the relationship between Biremis and the recently described Labellicula and Olifantiella.

No MeSH data available.


Related in: MedlinePlus