The marine diatom Pseudo-nitzschia galaxiae sp. nov. (Bacillariophyceae): morphology and phylogenetic relationships

@article{Lundholm2002TheMD,
  title={The marine diatom Pseudo-nitzschia galaxiae sp. nov. (Bacillariophyceae): morphology and phylogenetic relationships},
  author={Nina Lundholm and {\O}jvind Moestrup},
  journal={Phycologia},
  year={2002},
  volume={41},
  pages={594 - 605}
}
Abstract A new marine planktonic diatom, Pseudo-nitzschia galaxiae Lundholm & Moestrup sp. nov., isolated from Mexican and Australian waters, is described using light and transmission electron microscopy, including thin-sectioning. The diatom is very small and delicate and resembles species in the section Nitzschiella of Nitzschia, as well as some Pseudo-nitzschia species. In phylogenetic analyses based on sequences of partial large subunit ribosomal DNA, P. galaxiae clusters firmly within a… 
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Pseudo‐nitzschia H. Peragallo is a marine diatom genus found worldwide in polar, temperate, subtropical and tropical waters. It includes toxigenic representatives that produce domoic acid (DA), a
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References

SHOWING 1-10 OF 50 REFERENCES
MORPHOLOGY OF THE MARINE DIATOM NITZSCHIA NAVIS‐VARINGICA, SP. NOV. (BACILLARIOPHYCEAE), ANOTHER PRODUCER OF THE NEUROTOXIN DOMOIC ACID
TLDR
A new marine diatom is found to produce the neurotoxin domoic acid (DA), better known from several species of Pseudo‐nitzschia Peragallo and one species of Amphora Ehrenberg, which is therefore more widespread among diatoms than previously thought.
Phylogeny of the Bacillariaceae with emphasis on the genus Pseudo-nitzschia (Bacillariophyceae) based on partial LSU rDNA
TLDR
A phylogenetic analysis of 42 species based on the first 872 base pairs of nuclear-encoded large subunit (LSU) rDNA suggested that Nitzschia is not monophyletic, as expected from the great morphological diversity within the genus.
THE CYTOPLASMIC FINE STRUCTURE OF THE DIATOM HASLEA OSTREARIA (BACILLARIOPHYCEAE) IN RELATION TO MARENNINE PRODUCTION
TLDR
Observations suggest a cytoplasmic pathway in the synthesis of blue pigment and a role by the vesicular complex in the synthesizing or storage of marennine.
Stichochrysis immobilis is a diatom, not a chrysophyte
TLDR
Evidence is emerging that the organism in culture was in fact a clone of the diatom Cyclotella meneghiniana Kiitzing, a new genus and species of the Chrysophyceae described by Pringsheim on the basis of a pure culture grown on agar.
Morphology of the toxin-producing diatom Nitzschia-pungens Grunow forma multiseries Hasle
The toxin-producing diatom Nitzschia pungens Grunow forma multiseries Hasle from three toxic blooms in two Prince Edward Island estuaries, spanning 1987–89, was studied using light and electron
The antarctic diatom: Stellarima microtrias (Ehrenberg) Hasle & Sims cell structure and vegetative cell enlargement in culture
TLDR
The ultrastructure of the vegetative cell of Stellarima microtrias (Ehrenberg) Hasle & Sims, is similar to that of other diatoms, but the enlargement of the cell is not related to sexuality and is the result of a purely vegetative process.
DIVERSITY OF PLASTID DNA CONFIGURATION AMONG CLASSES OF EUKARYOTE ALGAE 1
TLDR
The overall arrangement of plastid DNA in plastids of approximately 100 spp.
THE CYTOPLASMIC FINE STRUCTURE OF THE DIATOM, NITZSCHIA PALEA
TLDR
The cytoplasmic fine structure of the motile, pennate diatom, Nitzschia palea was studied in thin sections viewed in the electron microscope, and appears to be membrane limited, and oil droplets are found adjacent to the pyrenoid.
THE PRESENCE OF A CRYSTALLINE MATRIX IN PYRENOIDS OF THE DIATOM, ACHNANTHES BREVIPES
TLDR
A crystalline matrix in the pyrenoids of the pennate diatom Achnanthes brevipes is reported and described.
...
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4
5
...