<i>Azadinium dalianense</i>, a new dinoflagellate species from the Yellow Sea, China

Luo, Zhaohe; Gu, Haifeng; Krock, Bernd; Tillmann, Urban

doi:10.2216/13-178.1

Cited by 29 publications

(44 citation statements)

References 41 publications

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“…In contrast to the high diversity of Azadinium in Europe (up to 9 species) , there are only a few species recovered in Asian waters (A. poporum, A. dalianense) Luo et al, 2013), Argentinean waters (A. cf. spinosum, A. poporum (Akselman and Negri, 2012;Tillmann et al, 2016) probably because they are small and are not included in most routine monitoring.…”

Section: Morphology and Biogeographymentioning

confidence: 91%

“…Up to ten species have been described in the past five years (Tillmann et al, , 2010Luo et al, 2013;Percopo et al, 2013). Additionally, Amphidoma caudata Halldal has been transferred to Azadinium based on both morphology and molecular phylogeny (Né zan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, Amphidoma caudata Halldal has been transferred to Azadinium based on both morphology and molecular phylogeny (Né zan et al, 2012). The genus Azadinium was characterized by a plate pattern of po, cp, x, 3-4 0 , 2-3a, 6 00 , 6C, 5S, 6 000 , 2 0000 Luo et al, 2013), in which the presence of anterior intercalary plates and a canal plate resembles the Peridiniales and the presence of six precingular and postcingular plates resembles the Gonyaulacales. In the molecular phylogeny, the genus Azadinium is monophyletic and forms an independent lineage together with Amphidoma Stein, which is classified within the family Amphidomataceae, but its higher level designation remains to be determined (Tillmann et al, 2012a.…”

Section: Introductionmentioning

confidence: 99%

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Morphology, molecular phylogeny and azaspiracid profile of Azadinium poporum (Dinophyceae) from the Gulf of Mexico

et al. 2016

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Section: Morphology and Biogeographymentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphology, molecular phylogeny and azaspiracid profile of Azadinium poporum (Dinophyceae) from the Gulf of Mexico

et al. 2016

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“…spinosum Tillmann et Elbrächter, the type species (Tillmann et al 2009), A. obesum Tillmann et Elbrächter (Tillmann et al 2010, A. poporum Tillmann et Elbrächter (Tillmann et al 2011), A. polongum Tillmann (Tillmann et al 2012a, A. dexteroporum Percopo et Zingone (Percopo et al 2013), A. dalianense Luo Z., Gu H. et Tillmann U. (Luo et al 2013), A. trinitatum Tillmann et Nézan, A. cuneatum Tillmann et Nézan and A. concinnum Tillmann et Nézan (Tillmann et al 2014). Recently, 2 morphotypes that had been assigned to Amphidoma caudata and to species of Oxytoxum were analyzed and transferred to Azadinium with rank of varieties: A. caudatum (Halldal) Nézan et Chomérat var.…”

Section: Introductionmentioning

confidence: 99%

“…spinosum (Akselman & Negri 2012), have been tentatively ascribed to their respective species. However, a new comparative study has assimilated the first one to A. poporum (Gu et al 2013), while A. cf. spinosum still remains under study.…”

Section: Introductionmentioning

confidence: 99%

Azadinium (Amphidomataceae, Dinophyceae) in the Southwest Atlantic: In situ and satellite observations

Akselman

Negri

Cozzolino

2014

Rev. biol. mar. oceanogr.

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Resumen.-Los azaspirácidos (AZAs) son toxinas identificadas en invertebrados marinos y tienen amplia distribución geográfica, no reportadas aún en Argentina ni Uruguay. Aunque el primer agente causal identificado es el dinoflagelado fotosintético Azadinium spinosum, diversos estudios indican que otras especies sintetizan asimismo AZAs. Recientemente se ha detectado la presencia de A. cf. spinosum en el Atlántico Sudoccidental y la generación de dos extensas floraciones como nuevos eventos a escala global. En este estudio se analiza la distribución geográfica regional y desarrollo temporal de Azadinium así como las condiciones ecológicas de una tercera floración de A. cf. spinosum y su registro satelital. Azadinium presentó una amplia distribución que abarcó el norte de la plataforma de Argentina y sur de Uruguay, incluyendo la desembocadura del Río de la Plata, con abundancias generalmente bajas (<1x10 3 células L -1 ); un estudio en una estación de serie de tiempo mostró una marcada estacionalidad con mayores abundancias en primavera y otoño. La tercera floración (>10 6 células L -1 ) de A. cf. spinosum ocurrió en agosto-septiembre 1998 en un área coincidente con las previas, en condiciones hidrográficas propicias para su crecimiento poblacional. Esta floración comprobada in situ tuvo registros satelitales del sensor SeaWiFS que indicaron altas concentraciones de clorofila-a (máximo: 11,76 mg Clo-a m -3 ) dentro de una ancha y larga banda (al menos 2,5° de latitud) adyacente al talud continental y la Corriente de Malvinas. Aún desconocemos si las especies de Azadinium presentes en el Atlántico Sudoccidental son capaces de sintetizar AZAs, tema de interés debido a la explotación de bivalvos en bancos de profundidad. Palabras clave: Azadinium, floraciones de dinoflagelados, Atlántico Sudoccidental, SeaWiFSAbstract.-Azaspiracid toxins (AZAs) have been identified in marine invertebrates and are of wide geographical distribution, but have not been reported in Argentina or Uruguay. The first identified causal agent is the photosynthetic dinoflagellate Azadinium spinosum, but new studies indicate that other species also synthesize AZAs. We have recently reported the presence of A. cf. spinosum in the Southwest Atlantic and the generation of two extended blooms as new global events. Here we analyze the ecological conditions of a third bloom of A. cf. spinosum and its satellite record, and report the regional distribution and temporal development of the genus Azadinium. Azadinium had a wide spatial distribution encompassing northern Argentine and southern Uruguayan shelves, including the mouth of the Río de la Plata. Abundance was generally low (<1x10 3 cells L -1 ), and analysis conducted at a time series station showed a marked seasonality in spring and autumn. A. cf. spinosum caused a third bloom and discolorations (>10 6 cells L -1 ) in August-September 1998 in the northern shelf of Argentina in an area that spatially coincided with the previous episodes, with hydrographic conditions propitious for its population gr...

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