PHAGOTROPHY IN GYMNODINIUM FUNGIFORME (PYRRHOPHYTA): THE PEDUNCLE AS AN ORGANELLE OF INGESTION 1

@article{Spero1982PHAGOTROPHYIG,
  title={PHAGOTROPHY IN GYMNODINIUM FUNGIFORME (PYRRHOPHYTA): THE PEDUNCLE AS AN ORGANELLE OF INGESTION 1},
  author={H. Spero},
  journal={Journal of Phycology},
  year={1982},
  volume={18}
}
  • H. Spero
  • Published 1982
  • Biology
  • Journal of Phycology
The non‐photosynthetic phagotrophic dinoflagellate, Gymnodinium fungiforme Anissimova, ingests prey cytoplasm through a highly extensible structure called the peduncle. Although the peduncle is not observable when G. fungiforme is swimming, it protrudes 8–12 μm from the sulcal‐angular vicinity of the cell during feeding, and is approximately 3.3 μm wide when the cytoplasm of its prey is flowing through it. A circular‐oval ring of overlapping microtubules, the ‘microtubular basket’ may be seen… Expand
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References

SHOWING 1-10 OF 11 REFERENCES
PHAGOTROPHIC FEEDING AND ITS IMPORTANCE TO THE LIFE CYCLE OF THE HOLOZOIC DINOFLAGELLATE, GYMNODINIUM FUNGIFORME 1
TLDR
The holozoic dinoflagellate, Gymnodinium fungiforme Anissimova, has been observed in both asexually and sexually reproducing cultures and feed on prey as large as the ciliated protozoan, Condylostoma magnum Spiegel, and has been cultured phagotrophically with the chlorophyte, Dunaliella salina Teodoresco as a food source. Expand
DIVISION IN THE DINOFLAGELLATE GYRODINIUM COHNII (SCHILLER) A New Type of Nuclear Reproduction
TLDR
It is proposed that the membrane surrounding cytoplasmic channels in the dividing nucleus may be involved in the separation of daughter chromosomes, which may resemble prokaryotes in the manner of genophores separation as well as in genophore chemistry and ultrastructure. Expand
Saprophytic and phagocytic isolates of the colourless heterotrophic dinoflagellate Gyrodinium lebouriae Herdman
TLDR
While the free-living heterotrophic Dinophyceae comprise the largest proportion of the class they have been, by far, the most poorly studied at the fine structural level. Expand
Observations on the theca of the motile phase of free-living and symbiotic isolates of Zooxanthella microadriatica (Freudenthal) comb.nov.
A strain of Zooxanthella microadriatica (Freudenthal) comb.nov. has been isolated from decaying Chondrus crispus (L.) Stackh. The ultrastructure of this isolate has been compared to that of Z.Expand
Dissodinium pseudolunula (Dinophyta), a parasite on copepod eggs
TLDR
The vegetative life cycle, especially the parasitic phase, which involves phagocytosis, is reported for the first time in Dissodinium pseudolunula, which resembles D. pseudocalani, which is also parasitic upon copepod eggs. Expand
Parasitic, amoeboid dinoflagellates
TLDR
The life cycles of two members of this group, Stylodinium sphaera and Cystodinedria inermis, include a parasitic amoeboid stage which brings about vegetative reproduction and also possibly sexual reproduction. Expand
THE FINE STRUCTURE AND FUNCTION OF THE TENTACLE IN TOKOPHRYA INFUSIONUM
  • M. Rudzinska
  • Biology, Medicine
  • The Journal of cell biology
  • 1965
TLDR
An electron microscope study of the tentacle in Tokophrya infusionum, a protozoan of the subclass Suctoria, has disclosed a number of structural details which help to clarify some of the mechanisms involved in this unusual way of feeding. Expand
An optimal growth medium for the dinoflagellate Crypthecodinium cohnii
TLDR
A synthetic defined medium is presented that combines NaCI 342 mM, MgSO428 mM, CaCl27.5 mM, KC19 mM, disodium glycerophosphate 0.79 mM, (NH4)2SO41 and biotin 8.2 × 10−9 M,... Expand
MICROTUBULE ARMS AND CYTOPLASMIC STREAMING AND MICROTUBULE BENDING AND STRETCHING OF INTERTUBULE LINKS IN THE FEEDING TENTACLE OF THE SUCTORIAN CILIATE TOKOPHRYA
  • J. Tucker
  • Biology, Medicine
  • The Journal of cell biology
  • 1974
TLDR
The positions of arm-bearing microtubules around such invagination indicate that arms are involved in moving invaginations along. Expand
Fibrous proteins--neuronal organelles.
  • F. Schmitt
  • Chemistry, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 1968
...
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