Taxonomical study on benthic dinoflagellates collected in coral reefs.

Morphological and genetic characterization of benthic dinoflagellates of the generaCoolia,OstreopsisandProrocentrumfrom the south-eastern Bay of Biscay

“…The strains have morphological features similar to previous descriptions of the species, although with some differences from Meunier's (1919) original description and other later descriptions, especially regarding some plates of the epitheca. Plates 6 00 and 5 00 are elongated in the original description and the suture between them runs in a nearly dorso-ventral direction, while in our strains it runs to the right side, resulting in a wider, not elongated 6 00 plate and a smaller 5 00 , similar to other later descriptions (Fukuyo, 1981;Penna et al, 2005;Dolapsakis et al, 2006). Differences are also found in plates 1 00 and 2 00 .…”

“…The morphological differences between the strains of the P. emarginatum/ P. fukuyoi group analysed in this study compromise cell size, shape (length to width ratio, L/W), pore pattern and shape of the anterior excavation. The smallest and roundest (L/W 1.18) strain is Dn31EHU, the one that more closely matches the dimensions of the original description of P. emarginatum (Fukuyo, 1981), which was described as being 35-36 mm long and 32 mm wide (L/W 1.11). It also matches the description of P. emarginatum from the western Indian Ocean (Hansen et al, 2001), from Greek waters (Aligizaki et al, 2009) and from Malaysia (Mohammad-Noor et al, 2006), although a pyrenoid was observed in some cells in the latter two studies.…”

“…siamensis strains given by Penna et al (2005) and Aligizaki & Nikolaidis (2006), an affinity confirmed by the molecular analysis. The morphology of the local strains of Ostreopsis also fits the description given by Fukuyo (1981) for O. siamensis, except in cell size (smaller in our strains), and differs from that given by Faust et al (1996) and Chang et al (2000) in having only one size of thecal pores.…”

“…Ostreopsis cf. siamensis differs from O. lenticularis in its cell dimensions and the presence of only one size of trichocyst pore (Fukuyo, 1981;Mohammad-Noor et al, 2006). Taking into account cell shape and dimensions, thecal pores and Po size in different species of the genus Ostreopsis, the local strains best fit the Mediterranean O. cf.…”

Madanidinium loirii gen. et sp. nov.(Dinophyceae), a new marine benthic dinoflagellate from Martinique Island, Eastern Caribbean

“…Subsequently, several other benthic taxa were found to be harmful and involved in the complex mechanism of ciguatera (Bomber & Aikman, 1989;Litaker et al, 2010). Because of this potential toxicity, several taxonomic studies were undertaken in tropical regions (Fukuyo, 1981;Besada et al, 1982;Berland et al, 1992;Grzebyk et al, 1994;Chinain et al, 1999) and also in temperate areas worldwide (e.g. Horiguchi & Chihara, 1983;Saunders & Dodge, 1984;Larsen, 1985;Hoppenrath, 2000b;Aligizaki & Nikolaidis, 2006;Murray, 2009;Chomérat et al, 2010b;Fraga et al, 2011).…”