The formation of the twin resting cysts in the dinoflagellate Dissodinium pseudolunula, a parasite of copepod eggs

The dinoflagellate Dissodinium pseudolunula is the most common and widespread ecto-parasite of copepod eggs in neritic waters. When the host is absent, the species survives with a distinctive pair of twin resting cysts described as Pyrocystis margalefii. Based on live samples, the formation of the t...

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Bibliographic Details
Published inJournal of plankton research Vol. 35; no. 5; pp. 1167 - 1171
Main Authors GOMEZ, Fernando, FELIPE ARTIGAS, Luis
Format Journal Article
LanguageEnglish
Published Oxford Oxford University Press 01.09.2013
Oxford University Press (OUP)
Subjects
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
Crustacea
Earth Sciences
Fundamental and applied biological sciences. Psychology
General aspects
Invertebrates
Oceanography
Sciences of the Universe
Synecology
Crustacea
Egg
Plankton
Arthropoda
Cyst
Copepoda
Parasite
Invertebrata
Twin
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Summary:The dinoflagellate Dissodinium pseudolunula is the most common and widespread ecto-parasite of copepod eggs in neritic waters. When the host is absent, the species survives with a distinctive pair of twin resting cysts described as Pyrocystis margalefii. Based on live samples, the formation of the twin resting cysts is illustrated here for the first time. The gymnodinioid infective cells did not form overwintering cysts under unfavourable conditions. These are formed inside the secondary lunate sporangium.
ISSN:0142-7873
1464-3774
DOI:10.1093/plankt/fbt066