THE MORPHOLOGY AND FINE STRUCTURE OF CERATIUM HIRUNDINELLA (DINOPHYCEAE) 1

@article{Dodge1970THEMA,
  title={THE MORPHOLOGY AND FINE STRUCTURE OF CERATIUM HIRUNDINELLA (DINOPHYCEAE) 1},
  author={John D. Dodge and Richard M. Crawford},
  journal={Journal of Phycology},
  year={1970},
  volume={6}
}
Some aspects of thecal morphology in Ceratium hirundinella are redescribed by means of scanning electron microscopy. The internal anatomy of the cell has been clearly revealed for the first time in serial sections examined by transmission electron microscopy. An unusual sulcus, termed the sulcul aperture, has been found to open into a large ventral chamber which extends toward the center of the cell. The 2 flagella are inserted at one side of the ventral chamber. The ultrastructure of the… 

An electron microscope study of the excystment and early development of the dinoflagellate Ceratium hirundinella

The excystment and development of cells of Ceratium hirundinella (O. F. Mull.) Bergh. has been studied in the laboratory using transmission and scanning electron microscopy. The occurrence of an exit

The fine structure of the cell surface in Gonyaulax polyedra (dinoflagellata)

TLDR
The theca of Gonyaulax polyedra has been studied by light- and scanning electron microscopy and a rule of plate overlap can be deduced for the whole theca.

Light and electron microscopical observations on Peridiniella catenata (Dinophyceae)

TLDR
Peridiniella catenata differs from other gonyaulacoid dinoflagellates in the presence of chloroplasts with single-stalked pyrenoids and in details of the pusular complex.

Structure of the flagellar apparatus in Heterocapsa pygmaea (Pyrrophyta)

TLDR
The peculiar displacement of the basal bodies to one another and to the cell is discussed as are similarities and variations in the flagellar apparatus of the few other described dinoflagellates.

Fine structure of the longitudinal flagellum in Ceratium tripos, a marine dinoflagellate.

TLDR
Transmission electron microscopy investigation of the fine structure of the longitudinal flagellum in Ceratium tripos has revealed that the axoneme that appeared to be a single fibre under the light microscope is a bundle of four fibres; the 9 + 2 microtubularAxoneme, the packing material, the striated fibre, and the paraxial fibre.

MICROMORPHOLOGY OF THE PERIPLAST OF CHROOMONAS SP. (CRYPTOPHYCEAE) 1, 2

TLDR
Trypsin digestion resulted in the disappearance of the inner and outer layers, and in the loss of periplast stiffness, in Chroomonas sp.

COMPARATIVE ANALYSES OF THE DINOFLAGELLATE FLAGELLAR APPARATUS. II. CERATIUM HIRUNDINELLA 1

TLDR
The combined presence of wellveloped striated collars, a striated collar connective, and a basal body angle of approximately 120° indicates that this flagellar apparatus is most like that described for Peridinioid dinoflagellates.

Thecal apex structure in the Peridiniaceae (Dinophyceae)

TLDR
The general use of the apical characteristics in the taxonomy of the family Peridiniaceae is discussed and the various types of apex are illustrated with scanning electron micrographs.

The encystment of a freshwater dinoflagellate: A light and electron-microscopical study

TLDR
The main features of the process are the replacement of the theca by a thin, amorphous outer wall, which gradually thickens by the deposition of material on its inner face, and the appearance of a layer of closely-packed lipid droplets at the cytoplasmic margin of the mature cyst.

Fine structural observations on Gonyaulax spinifera (Dinophyceae), with special emphasis on the flagellar apparatus

TLDR
The fine structure of Gonyaulax spinifera Diesing has been investigated by transmission electron microscopy, using serial sections, and a common plastidial origin for gonyaulacoid dinoflagellates is indicated.
...

References

SHOWING 1-7 OF 7 REFERENCES

A survey of thecal fine structure in the Dinophyceae

TLDR
The structure of the theca of some 30 marine and freshwater members of the Dinophyceae has been examined by light and electron microscopy and it is suggested that the thecal types could from the basis for some revision of the taxonomy of the class.

The fine structure of chloroplasts and pyrenoids in some marine dinoflagellates.

  • J. Dodge
  • Environmental Science
    Journal of cell science
  • 1968
TLDR
Stalked pyrenoids, which are found in some dinoflagellates, are shown to arise from the inner face of the chloroplasts, to contain a finely granular material and to be frequently surrounded by an electron-transparent area.

An electron microscope study of dinoflagellate flagella.

SUMMARY: The two flagella of the dinoflagellates examined possess the normal axoneme structure with 9+2 filaments, the nine outer doublets forming triplets in the basal region. Unlike other flagella

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.

THE FINE STRUCTURE OF GYMNODINIUM FUSCUM (DINOPHYCEAE)

Summary The large freshwater dinoflagellate Gymnodinium fuscum (Ehrenberg) Stein, which is the type species of the genus, has flagella, chloroplasts, mitochondria, golgi bodies and chromosomes with

The fine structure of Woloszynskia micra Sp.Nov., a new marine dinoflagellate

TLDR
The morphology and fine structure of a new dinoflagellate species that appears to be a Gymnodinium but electron microscopy has clearly revealed the presence of a complex theca which is indicative of the genus Woloszynskia, which was isolated from the English Channel near Plymouth.