Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) from a brackish environment
Peridinium quinquecorne is a marine dinoflagellate that bears four characteristic thick spines on the hypotheca. Some specimens, which characteristics of shape, number and arrangement of plates matched those of this species, were found in phytoplankton samples collected at the Sontecomapan coastal l...
| Hoofdauteurs: | , |
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| Formaat: | Online |
| Taal: | spa eng |
| Gepubliceerd in: |
Instituto de Ecología, A.C.
2011
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| Online toegang: | https://abm.ojs.inecol.mx/index.php/abm/article/view/273 |
| _version_ | 1799771114204823552 |
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| author | Aké-Castillo, José Antolín Vázquez, Gabriela |
| author_facet | Aké-Castillo, José Antolín Vázquez, Gabriela |
| author_sort | Aké-Castillo, José Antolín |
| collection | ABM |
| description | Peridinium quinquecorne is a marine dinoflagellate that bears four characteristic thick spines on the hypotheca. Some specimens, which characteristics of shape, number and arrangement of plates matched those of this species, were found in phytoplankton samples collected at the Sontecomapan coastal lagoon, Mexico, in 1999, 2001, 2003 and 2007. However, the organisms collected bore three spines on the hypotheca instead of four, as described for P. quinquecorne. The number of spines and their position on antapical plates were features consistently observed over at least a nine years period. From October 2002 to October 2003, we followed the dynamics of the phytoplankton community at the lagoon and this organism was found only in February and June, when salinity values were lower than 21‰ and temperatures higher than 24.5 °C. In February 2003, this organism reached high cell densities and became the dominant species in the phytoplankton community. Based on observations on the morphology of this dinoflagellate under the light and electron microscopes and its constant possession of only three spines, we propose the new variety name Peridinium quinquecorne var. trispiniferum for this taxon which caused a bloom in this tropical brackish system. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-273 |
| institution | Acta Botanica Mexicana |
| language | spa eng |
| publishDate | 2011 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-2732022-12-23T05:28:08Z Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) from a brackish environment Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) de un ambiente salobre Aké-Castillo, José Antolín Vázquez, Gabriela bloom coastal lagoon dinoflagellate Gulf of Mexico new taxon dinoflagelado florecimiento Golfo de México laguna costera taxon nuevo Peridinium quinquecorne is a marine dinoflagellate that bears four characteristic thick spines on the hypotheca. Some specimens, which characteristics of shape, number and arrangement of plates matched those of this species, were found in phytoplankton samples collected at the Sontecomapan coastal lagoon, Mexico, in 1999, 2001, 2003 and 2007. However, the organisms collected bore three spines on the hypotheca instead of four, as described for P. quinquecorne. The number of spines and their position on antapical plates were features consistently observed over at least a nine years period. From October 2002 to October 2003, we followed the dynamics of the phytoplankton community at the lagoon and this organism was found only in February and June, when salinity values were lower than 21‰ and temperatures higher than 24.5 °C. In February 2003, this organism reached high cell densities and became the dominant species in the phytoplankton community. Based on observations on the morphology of this dinoflagellate under the light and electron microscopes and its constant possession of only three spines, we propose the new variety name Peridinium quinquecorne var. trispiniferum for this taxon which caused a bloom in this tropical brackish system. Peridinium quinquecorne es un dinoflagelado marino que se caracteriza por la presencia de cuatro espinas conspicuas en la hipoteca. En la laguna de Sontecomapan, en el Golfo de México, en muestras de fitoplancton de 1999, 2001, 2003 y 2007, encontramos un organismo cuyas características de forma, número y arreglo de placas coincidieron con las descritas para esta especie. Sin embargo, las poblaciones registradas presentaron sólo tres espinas en la hipoteca en lugar de las cuatro descritas para P. quinquecorne. El número de espinas y su posición en las placas antapicales fue un rasgo constante que se ha observado en un período de nueve años. A partir de octubre de 2002 a octubre de 2003 se estudió la dinámica de la comunidad fitoplanctónica de la laguna de Sontecomapan, y la presencia de este organismo se detectó en los meses de febrero y junio, cuando las salinidades de la laguna estuvieron por debajo de valores de 21‰ y a temperaturas mayores a 24.5 ºC. En febrero de 2003 alcanzó densidades altas, siendo la especie dominante en la comunidad fitoplanctónica. Basándonos en las observaciones de la morfología de este dinoflagelado en microscopios óptico y electrónico y la posesión de sólo tres espinas como un carácter constante, proponemos la nueva variedad Peridinium quinquecorne var. trispiniferum para este taxon que causó un florecimiento en este sistema tropical salobre. Instituto de Ecología, A.C. 2011-01-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/html https://abm.ojs.inecol.mx/index.php/abm/article/view/273 10.21829/abm94.2011.273 Acta Botanica Mexicana; No. 94 (2011); 125-140 Acta Botanica Mexicana; Núm. 94 (2011); 125-140 2448-7589 0187-7151 spa eng https://abm.ojs.inecol.mx/index.php/abm/article/view/273/407 https://abm.ojs.inecol.mx/index.php/abm/article/view/273/408 Derechos de autor 2015 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Aké-Castillo, José Antolín Vázquez, Gabriela Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) from a brackish environment |
| title | Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) from a brackish environment |
| title_full | Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) from a brackish environment |
| title_fullStr | Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) from a brackish environment |
| title_full_unstemmed | Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) from a brackish environment |
| title_short | Peridinium quinquecorne var. trispiniferum var. nov. (Dinophyceae) from a brackish environment |
| title_sort | peridinium quinquecorne var. trispiniferum var. nov. (dinophyceae) from a brackish environment |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/273 |
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