Toxicity
provided by Harmful Phytoplankton Project
Produces putative palytoxin and the novel palytoxin-like ovatoxin-a (Ciminiello et al. 2008).
- bibliographic citation
- Guide to UK Coastal Planktonic Ciliates © 2001 DJS Montagnes, University of Liverpool http://www.liv.ac.uk/ciliate/
- author
- David J.S. Montagnes
Reproduction
provided by Harmful Phytoplankton Project
O. ovata reproduces via binary fission.
- Fukuyo, Y. (1981). Taxonomical study on benthic dinoflagellates collected in coral reefs. Bull. Jpn. Soc. Sci. Fish. 47: 967-978.
- Faust, M.A., Morton, S.L. & Quod, J.P. (1996). Further SEM study of marine dinoflagellates: The genus Ostreopsis (Dinophyceae). J. Phycol. 32: 1053-1065.
- Melchiorre, N. (2008). Putative Palytoxin and Its New Analogue, Ovatoxin-a, in Ostreopsis ovata Collected Along the Ligurian Coasts During the 2006 Toxic Outbreak. J. Am. Soc. Mass Spectrom. 19: 111?120
- Penna, A., Vila, M., Fraga, S., Giacobbe, M.G., Andreoni, F., Riobó, P & Vernesi, C. (2005). Characterization of Ostreopsis and Coolia (Dinophyceae) isolates in the western Mediterranean Sea based on morphology, Toxicity and internal transcribed spacer 5.8s rRNA sequences. J. Phycol. 41: 212?225.
- bibliographic citation
- Guide to UK Coastal Planktonic Ciliates © 2001 DJS Montagnes, University of Liverpool http://www.liv.ac.uk/ciliate/
- author
- David J.S. Montagnes
Habitat
provided by Harmful Phytoplankton Project
Temperature: 11.5-29.7ºC; Salinity: 37.2-38.1 PSU
- bibliographic citation
- Guide to UK Coastal Planktonic Ciliates © 2001 DJS Montagnes, University of Liverpool http://www.liv.ac.uk/ciliate/
- author
- David J.S. Montagnes
Diagnostic Description
provided by Harmful Phytoplankton Project
Cell is usually drop shaped (although may be oblong), pointed to the ventral side. Thecal plates are thin and delicate. The posterior intercalary plate (1p) is long and thin (9 x 27µm). Plates 3''' and 4''' are large and make up the dorsal half of the hypotheca. The cingulum is placed centrally and is very noticeable (Faust 1996). The sulcus contains eight plates (Tomas et al. 1997). Cells contain many golden chloroplasts, In some examples one or two red bodies can be observed on the dorsal side of the cell (Fukuyo 1981).
- bibliographic citation
- Guide to UK Coastal Planktonic Ciliates © 2001 DJS Montagnes, University of Liverpool http://www.liv.ac.uk/ciliate/
- author
- David J.S. Montagnes
Comprehensive Description
provided by Harmful Phytoplankton Project
O. ovata is an epiphytic dinoflagellate. It is distributed world wide, usually forming assemblages with other epiphytic and/or benthic dinoflagellates. Cells are ovoid in dorsoventral view with scattered pores on the theca. Pores come in two classes large (0.45-0.50µm) or small (0.25-0.30µm) (Faust 1996).
- bibliographic citation
- Guide to UK Coastal Planktonic Ciliates © 2001 DJS Montagnes, University of Liverpool http://www.liv.ac.uk/ciliate/
- author
- David J.S. Montagnes
Distribution
provided by Harmful Phytoplankton Project
World wide distribution but fairly uncommon in the UK, Generally benthic or epiphytic but occasionally planktonic. Exists in tropical shallow waters to offshore reefs. In tropical areas tends to form assemblages with Prorocentrum lima , Prorocentrum concavum, Ostreopsis siamensis, Ostreopsis lenticularis and Gambierdiscus toxicus. In other areas it often will form assemblages with Coolia monotis, P. lima and Coscinodiscus sp. , C. monotis, P. lima and P. compressum or C. monotis, Oxyrrhis marina and Amphidinium sp.
- bibliographic citation
- Guide to UK Coastal Planktonic Ciliates © 2001 DJS Montagnes, University of Liverpool http://www.liv.ac.uk/ciliate/
- author
- David J.S. Montagnes
