Possible resting spores of<i>Dissodinium pseudolunula</i>(Dinophyta) and their relation to other taxa

Drebes, G.

doi:10.1080/00071618100650211

Cited by 17 publications

(6 citation statements)

References 12 publications

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“…* [Cleve did not list this species under the section Dinoflagellata but under 'Cystae*. Drebes (1981) These figures correspond very well to those provided by Pavillard (1930) for Pyrocystis elegans Pavillard. Pavillard apparently regarded *le Gymnodinium lunula dit', the Gymnodinium lunula sensu Dogiel 1906 -which now is known s Dissodinium pseudolunulas the true Pyrocystis lunula.…”

Section: Pyrocystis Eleganssupporting

confidence: 61%

On the Taxonomy of the LunatePyrocystisSpecies (Dinophyta)

Elbrächter

Hemleben

Spindler

1987

Botm

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The size and shape of difierent individuals within Pyrocystis clones varied to such an extent that species Separation of single cells was impossible in many cases. Pyrocystis robusta Kofoid showed the largest Variation, P. lunula (Schutt) Schutt a fairly broad Variation whereas a clone referred to P. cf lunula (Schutt) Schutt and P. obtusa Pavillard were more constant in morphology. A short review of the species belonging to the lunate Pyrocystis species complex is provided. Taxa delimitation and classification are discussed. It is indicated that species determination of single cells from field samples is in many cases unreliable and only allocation to the Pyrocystis lunula species complex is recommended.

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Section: Pyrocystis Eleganssupporting

confidence: 61%

On the Taxonomy of the LunatePyrocystisSpecies (Dinophyta)

Elbrächter

Hemleben

Spindler

1987

Botm

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“…In any case, it was found surprisingly that resting cysts of Paulsenella arise from meiospores. Possibly, the resting cysts of Dissodinium pseudolunula can also be interpreted as offspring of a meiosis (Drebes, 1981).…”

Section: ~I I ĩI I I I I I I I I I ĩ!~I !!!~ĩI I I !!@I I I I I I I Imentioning

confidence: 99%

Paulsenella Chatton (Dinophyta), ectoparasites of marine diatoms: development and taxonomy

Drebes

Schnepf

1988

Helgolander Meeresunters

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All members of the dinophyte Paulsenella are ectoparasites on marine planktonic diatoms. At present three species are known, two of which are described here for the first time. The taxonomy of the type species, P. chaetoceratis, is paid critical attention. The species are clearly distinguished by their host specificity and additionally by differences in morphology, especially of the trophonts. Using clonal cultures the life cycles of the three species are compared. The vegetative development may be interrupted by formation of temporary and resting cysts. In ageing cultures, stages with nuclear cyclosis occur, believed to indicate meiosis. In P. vonstoschii, the meiospores are capable of developing into resting cysts. As yet, knowledge on sexual reproduction is still incomplete.

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“…Copepods are the most abundant animal group in the ocean. The lipid-rich copepod eggs are the target of parasitic species of the dinoflagellate genera Chytriodinium, Schizochytriodinium and Dissodinium, whose dinospores infest the eggs, absorb the host contents and form successive sporangia that release gymnodinioid infective spores (Apstein 1906;Cachon and Cachon 1968;Dogiel 1906;Drebes 1969Drebes , 1978Drebes , 1981Elbrächter 1988;Gómez and Artigas 2013;Gönnert 1936;Lebour 1925;Pouchet 1885).…”

Section: Introductionmentioning

confidence: 99%

Molecular phylogeny of the parasitic dinoflagellate Syltodinium listii (Gymnodiniales, Dinophyceae) and generic transfer of Syltodinium undulans comb. nov. (= Gyrodinium undulans)

Gómez

Artigas

Gast

2019

European Journal of Protistology

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The parasitic dinoflagellate Syltodinium listii was investigated from the open waters of the English Channel and the NW Mediterranean Sea. Syltodinium listii has been unreported since its original description in the North Sea. Cells of S. listii were able to immediately infect copepod eggs of different species, and even nauplii, and after each infection to form up to 32 cells embedded in a mucous envelope. Infection of the same host by more than one dinoflagellate was frequent; although overall, the progeny were reduced in number. Molecular phylogeny based on the small subunit ribosomal RNA (SSU rRNA) gene revealed that S. listii clusters with a group of environmental sequences from the cold North Atlantic region as a sister group of Gymnodinium aureolum. The large subunit ribosomal RNA (LSU rRNA) gene sequences of S. listii from the English Channel and cf. Gyrodinium undulans from the Mediterranean Sea were identical. Thus, we propose Syltodinium undulans comb. nov. for Gyrodinium undulans. The first internal transcribed spacer (ITS) and complete SSU rRNA gene sequences of Dissodinium pseudolunula are provided. The parasitic species of Chytriodinium, Dissodinium and Syltodinium cluster together within the family Chytriodiniaceae, including the free-living species Gymnodinium aureolum, G. corollarium and G. plasticum.

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Possible resting spores ofDissodinium pseudolunula(Dinophyta) and their relation to other taxa

Cited by 17 publications

References 12 publications

On the Taxonomy of the LunatePyrocystisSpecies (Dinophyta)

On the Taxonomy of the LunatePyrocystisSpecies (Dinophyta)

Paulsenella Chatton (Dinophyta), ectoparasites of marine diatoms: development and taxonomy

Molecular phylogeny of the parasitic dinoflagellate Syltodinium listii (Gymnodiniales, Dinophyceae) and generic transfer of Syltodinium undulans comb. nov. (= Gyrodinium undulans)

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