POTENTIAL IMPORTANCE OF BENTHIC CYSTS OF GONYAULAX TAMARENSIS AND G. EXCAVATA IN INITIATING TOXIC DINOFLAGELLATE BLOOMS 1, 2, 3

@article{Anderson1978POTENTIALIO,
  title={POTENTIAL IMPORTANCE OF BENTHIC CYSTS OF GONYAULAX TAMARENSIS AND G. EXCAVATA IN INITIATING TOXIC DINOFLAGELLATE BLOOMS 1, 2, 3},
  author={D. M. Anderson and David Wall},
  journal={Journal of Phycology},
  year={1978},
  volume={14}
}
Thick‐walled, nonmotile cysts (termed hypnocysts) of two dinoflagellates were isolated from estuarine sediments in Cape Cod, Massachusetts, and germinated to produce their respective motile, thecate stages. Hypnocysts from Orleans district were identified as Gonyaulax excuvata (Braarud) Balech sensu Loeblich & Loeblich. Visually identical hypnocysts from Falmouth district were provisionally identified as Gonyaulax tamarensis Lebour. Both species were toxic. A geographic survey in September… 

Dinoflagellate resting cysts as factors in phytoplankton ecology of the North Sea

  • S. Nehring
  • Environmental Science
    Helgoländer Meeresuntersuchungen
  • 2006
TLDR
The wide distribution of living and empty cysts of Scrippsiella lachrymosa suggests that its motile form, which has not been officially recorded in the area until now, is a common plankton organism in German coastal waters.

EFFECTS OF TEMPERATURE CONDITIONING ON DEVELOPMENT AND GERMINATION OF GONYAULAX TAMARENSIS (DINOPHYCEAE) HYPNOZYGOTES 1

TLDR
Cysts formed during the late spring in temperate waters are capable of excystment several months later as fall temperatures decrease; those formed in the fall take longer to mature, but are viable after six months of overwintering.

Mating interactions of the harmful dinoflagellate alexandrium tamarense from UK coastal waters

TLDR
This study provides further insight into the mating interactions between toxic Group I and non-toxic Group III isolates primarily from UK coastal waters and suggests that Group I isolates are more likely to out-breed with a compatible Group III isolate.

Dinoflagellate Cysts in Recent Marine Sediments from Tasmania, Australia

TLDR
While Tasmanian dinoflagellate cyst assemblages resemble those of New South Wales, Australia, and New Zealand, one notable difference is the cyst of the toxic Gymnodinium catenatum which appears to be confined to south-eastern Tasmania.

Spatial distribution of dinoflagellate resting cysts in Recent sediments of Kiel Bight, Germany (Baltic Sea)

TLDR
Micro-reticulate resting cysts of the toxic, unarmoured Gymnodinium catenatum, whose motile cell has not been recorded in Northern European waters, are reported for the first time from Recent sediments of the Baltic Sea.

Dinoflagellate resting cysts isolated from sediments in Marlborough Sounds, New Zealand

TLDR
Seventeen species of dinoflagellate resting cysts have been recorded for the first time in New Zealand and these areas may be more likely to harbour toxic species causing paralytic shellfish poisoning (PSP) or diarrhetic shell fish poisoning (DSP) if these were to appear in the future.

Promotion of cyst formation in the toxic dinoflagellate Alexandrium (Dinophyceae) by natural bacterial assemblages from Hiroshima Bay, Japan

TLDR
A clear positive correlation between the abundance of A. tamarense and Alex-CFPB during blooms is shown, which suggests that Alex- CFPB play a significant role in the process of encystment and bloom dynamics of Alexandrium in the field.
...

References

SHOWING 1-10 OF 29 REFERENCES

Cysts of the toxic red-tide dinoflagellate Gonyaulax excavata (Braarud) Balech from Oslofjorden, Norway

TLDR
Resting cyst morphology suggests a possible systematic relationship between G. excavata and Pyrophacus horologium, and cultured motile cells were toxic to mice, bioluminescent, and consistently lacking ventral pores, in accordance with recent suggestions that these are specific criteria.

Observations on vegetative reproduction and sexual life cycles of two freshwater dinoflagellates, Gymondinium pseudopalustre Schiller and Woloszynskia apiculata sp. nov.

In unialgal culture, Gymnodinium pseudopalustre Schiller (G.p.) and Woloszynskia apiculata sp. nov. (W.a.) multiply respectively by binary fission in the motile state and by motionless zoosporangia,

Taxonomic difficulties in red tide and paralytic shellfish poison studies: the "tamarensis complex" of Gonyaulax.

  • F. Taylor
  • Environmental Science
    Environmental letters
  • 1975
TLDR
The type illustrations of the dinoflagellate Gonyaulax tamarensis contain an apparent reversal of the epithecal plates, which have led a recent author to doubt the appropriateness of the allocation of toxic populations in the North Atlantic to this species or a variety of it.

THE “HYSTRICHOSPHAERID” RESTING SPORE OF THE DINOFLAGELLATE PYRODINIUM BAHAMENSE, PLATF, 1906 2

  • D. WallB. Dale
  • Geology, Environmental Science
    Journal of phycology
  • 1969
Germination experiments demonstrate that the “hystrichosphere” called Hemicystodinium zoharyi, which previously has been found only as a microfossil organism, is the resting spore stage in the life

Growth and Toxicity of a Marine Dinoflagellate, Gonyaulax tamarensis

TLDR
Although low salinity and high temperature promoted growth in cultures, salinity appears to be a more important ecological factor than temperature in controlling the summer abundance of this dinoflagellate in nature.

Modern dinoflagellate cysts and evolution of the Peridiniales

TLDR
It is concluded that modern resting cysts of thecate din oflagellates are homologous with some fossil dinoflages and hystrichospheres and systematic morphological fluctuations follow patterns already known; and relations reflect evolution of the Peridiniales.

Copper sensitivity of Gonyaulax tamarensis 1

The copper sensitivity of the dinoflagellate Gonyaulax tamarensis was examined in artificial seawater medium. Two short term responses of the organism to copper toxicity are rapid loss of motility

Quaternary calcareous dinoflagellates (Calciodinellidae) and their natural affinities

TLDR
It is concluded that Quaternary calciodinellids are peridinioid resting cysts having apical archeopyles and are produced by a small monophyletic group of dinoflagellates with the unique capability of primary calcification.

SOME CHEMICAL AND GEOCHEMICAL STUDIES ON SPOROPOLLENIN

  • J. Brooks
  • Geography, Environmental Science
  • 1971

Gonyaulax balechii sp. nov. (Dinophyceae) with a discussion of the genera Gonyaulax and Heteraulacus

Abstract Gonyaulax balechii sp. nov. (Dinophyceae) is described and compared with its closest relatives, Alexandrium minutum Halim and Heteraulacus reticulatus comb. nov. The species is distinctive