ArticlePloS one2013
New insights on cytological and metabolic features of Ostreopsis cf. ovata Fukuyo (Dinophyceae): a multidisciplinary approach.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 72 citations in OpenAlex.
- The succession of epiphytic microalgae conditions fungal community composition: how chytrids respond to blooms of dinoflagellates.ISME communications · 2023Article
- Mucus-Trap-Assisted Feeding Is a Common Strategy of the Small MixoplanktonicMicroorganisms · 2023Article
- Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular Growth.Marine drugs · 2023Review
- Atypical Membrane-Anchored Cytokine MIF in a Marine Dinoflagellate.Microorganisms · 2020Article
- Functional significance of phylogeographic structure in a toxic benthic marine microbial eukaryote over a latitudinal gradient along the East Australian Current.Ecology and evolution · 2020Article
- Microbial dynamics during harmful dinoflagellate Ostreopsis cf. ovata growth: Bacterial succession and viral abundance pattern.MicrobiologyOpen · 2018Article
- Culturing Toxic Benthic Blooms: The Fate of Natural Biofilms in a Microcosm System.Microorganisms · 2017Article
- On the extrusomes of Oxyrrhis marina (Dinophyceae).Protoplasma · 2017Article
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- Isolation and characterisation of the trichocysts of the dinophyte Prorocentrum micans.Protoplasma · 2015Article
- Complex toxin profile of French Mediterranean Ostreopsis cf. ovata strains, seafood accumulation and ovatoxins prepurification.Marine drugs · 2014Article
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Authors and funding
11 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The harmful dinoflagellate Ostreopsis cf. ovata has been causing toxic events along the Mediterranean coasts and other temperate and tropical areas, with increasing frequency during the last decade. Despite many studies, important biological features of this species are still poorly known. An integrated study, using different microscopy and molecular techniques, Raman microspectroscopy and high resolution liquid chromatography-mass spectrometry (HR LC-MS), was undertaken to elucidate cytological aspects, and identify main metabolites including toxins. The species was genetically identified as O. cf. ovata, Atlantic-Mediterranean clade. The ultrastructural results show unique features of the mucilage network abundantly produced by this species to colonize benthic substrates, with a new role of trichocysts, never described before. The amorphous polysaccharidic component of mucilage appears to derive from pusule fibrous material and mucocysts. In all stages of growth, the cells show an abundant production of lipids. Different developmental stages of chloroplasts are found in the peripheral cytoplasm and in the centre of cell. In vivo Raman microspectroscopy confirms the presence of the carotenoid peridinin in O. cf. ovata, and detects in several specimen the abundant presence of unsaturated lipids structurally related to docosahexaenoic acid. The HR LC-MS analysis reveals that ovatoxin-a is the predominant toxin, together with decreasing amounts of ovatoxin-b, -d/e, -c and putative palytoxin. Toxins concentration on a per cell basis increases from exponential to senescent phase. The results suggest that benthic blooms of this species are probably related to features such as the ability to create a unique mucilaginous sheath covering the sea bottom, associated with the production of potent toxins as palytoxin-like compounds. In this way, O. cf. ovata may be able to rapidly colonize benthic substrates outcompeting other species.
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