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FURTHER EVIDENCE FOR A MEMBRANE‐BOUND ENDOSYMBIONT WITHIN THE DINOFLAGELLATE PERIDINIUM FOLIACEUM 1
Author(s) -
Jeffrey S. W.,
Vesk Maret
Publication year - 1976
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1976.tb02872.x
Subject(s) - dinoflagellate , biology , cytoplasm , chloroplast , botany , nucleus , algae , thallus , microbiology and biotechnology , biochemistry , gene
SUMMARY The fine structure of the binucleate, fucoxanthin‐containing dinoflagellate Peridinium foliaceum (Stein) Biechler was re‐examined for evidence of an endosymbiout. The eucaryotic nucleus, chloroplasts and associated ribosome‐dense cytoplasm were separated by a single invaginating membrane from the rest of the dinoflagellate cell. The triple membrane‐enclosed eyespot, mesocaryotic nucleus, trichocysts and accumulation bodies resided in the dinoflagellate cytoplasm. These observations suggest that P. foliaceum contains a membrane‐bound endosymbiont, similar to that already described for the closely related species. P. balticum (Levander) Lemmermann.