Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus
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Redalyc · Ciencias Marinas
A strain of Gymnodinium catenatum Graham (GCCV-7), isolated from the Gulf of California, was submitted to conditions with different nitrogen-to-phosphorus ratios (5.4, 9.2, 23.5, 44.7, and 74.3) to determine the effect of these ratios on the growth, toxicity, and variations in toxin profile. No diff...
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| Publicado en: | Ciencias Marinas |
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Autónoma de Baja California
2012
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| _version_ | 1878325299903463424 |
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| author | JJ Bustillos-Guzmán |
| author_facet | JJ Bustillos-Guzmán |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus JJ Bustillos-Guzmán CJ Band-Schmidt DJ López-Cortés I Gárate-Lizárraga EJ Núñez-Vázquez FE Hernández-Sandoval Ciencias de la Tierra toxins nitrogen phosphorus Gulf of California Gymnodinium catenatum A strain of Gymnodinium catenatum Graham (GCCV-7), isolated from the Gulf of California, was submitted to conditions with different nitrogen-to-phosphorus ratios (5.4, 9.2, 23.5, 44.7, and 74.3) to determine the effect of these ratios on the growth, toxicity, and variations in toxin profile. No differences in toxicity and toxin profile were found among the treatments. Highest cell density occurred at the N:P ratio of 23.5:1, yielding 33% more cells than the 44.5:1 and 74.3:1 treatments, which in turn had 34% and 30% more cells than the 5.4:1 and 9.2:1 treatments. Toxin cell quota and variations in toxin composition were clearly related to growth rates. Toxicity remained relatively invariable because of changes in toxin composition rather than changes in the toxin cell quota during the different growth stages. The datasuggest that changes in the N:P ratios do not stimulate production of toxins or changes in toxin profiles, but do affect cell density, and that cellular toxin dynamics is related to the growth stage. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48023242008 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1A Vol.38 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/1916 10.7773/cm.v38i1A.1916 |
| description | A strain of Gymnodinium catenatum Graham (GCCV-7), isolated from the Gulf of California, was submitted to conditions with different nitrogen-to-phosphorus ratios (5.4, 9.2, 23.5, 44.7, and 74.3) to determine the effect of these ratios on the growth, toxicity, and variations in toxin profile. No differences in toxicity and toxin profile were found among the treatments. Highest cell density occurred at the N:P ratio of 23.5:1, yielding 33% more cells than the 44.5:1 and 74.3:1 treatments, which in turn had 34% and 30% more cells than the 5.4:1 and 9.2:1 treatments. Toxin cell quota and variations in toxin composition were clearly related to growth rates. Toxicity remained relatively invariable because of changes in toxin composition rather than changes in the toxin cell quota during the different growth stages. The data suggest that changes in the N:P ratios do not stimulate production of toxins or changes in toxin profiles, but do affect cell density, and that cellular toxin dynamics is related to the growth stage.
Se sometió a una cepa de Gymnodinium catenatum Graham (GCCV-7), aislada del golfo de California, a diferentes proporciones de nitrógeno y fósforo (5.4, 9.2, 23.5, 44.7 y 74.3) para determinar el efecto de estas proporciones en el crecimiento, toxicidad y variaciones en el perfil de toxinas. No se encontraron diferencias en la toxicidad ni en el perfil de toxinas entre los tratamientos. Sin embargo, la mayor densidad celular se presentó en la proporción de N:P de 23.5:1 con 33% más células que en los tratamientos N:P de 44.5:1 y 74.3:1, los cuales a su vez presentaron 34% y 30% más células que en los tratamientos 5.4:1 y 9.2:1. El contenido de total de toxinas por célula y la variación en el perfil de toxinas estuvo claramente relacionado con las tasas de crecimiento. La toxicidad se mantuvo relativamente constante debido, principalmente, a los cambios en el perfil que al contenido celular de toxinas en las diversas estapas de crecimiento. Estos datos sugieren que los cambios en la proporción de N:P no estimulan la producción de toxinas ni cambios en el perfil de toxinas paralizantes, pero sí afectan la densidad celular, y que la dinámica celular de toxinas está relacionada con la fase de crecimiento. |
| format | Artículo científico |
| id | redalyc_48023242008 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2012 |
| publisher | Universidad Autónoma de Baja California |
| spelling | Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus Variaciones en el crecimiento y toxicidad en Gymnodinium catenatum Graham del golfo de California bajo diferentes proporciones de nitrógeno y fósforo Bustillos-Guzmán, J J Band-Schmidt, C J López-Cortés, D J Gárate-Lizárraga, I Núñez-Vázquez, EJ Hernández-Sandoval, FE Gymnodinium catenatum nitrogen phosphorus toxins Gulf of California Gymnodinium catenatum nitrógeno fósforo toxinas golfo de California A strain of Gymnodinium catenatum Graham (GCCV-7), isolated from the Gulf of California, was submitted to conditions with different nitrogen-to-phosphorus ratios (5.4, 9.2, 23.5, 44.7, and 74.3) to determine the effect of these ratios on the growth, toxicity, and variations in toxin profile. No differences in toxicity and toxin profile were found among the treatments. Highest cell density occurred at the N:P ratio of 23.5:1, yielding 33% more cells than the 44.5:1 and 74.3:1 treatments, which in turn had 34% and 30% more cells than the 5.4:1 and 9.2:1 treatments. Toxin cell quota and variations in toxin composition were clearly related to growth rates. Toxicity remained relatively invariable because of changes in toxin composition rather than changes in the toxin cell quota during the different growth stages. The data suggest that changes in the N:P ratios do not stimulate production of toxins or changes in toxin profiles, but do affect cell density, and that cellular toxin dynamics is related to the growth stage. Se sometió a una cepa de Gymnodinium catenatum Graham (GCCV-7), aislada del golfo de California, a diferentes proporciones de nitrógeno y fósforo (5.4, 9.2, 23.5, 44.7 y 74.3) para determinar el efecto de estas proporciones en el crecimiento, toxicidad y variaciones en el perfil de toxinas. No se encontraron diferencias en la toxicidad ni en el perfil de toxinas entre los tratamientos. Sin embargo, la mayor densidad celular se presentó en la proporción de N:P de 23.5:1 con 33% más células que en los tratamientos N:P de 44.5:1 y 74.3:1, los cuales a su vez presentaron 34% y 30% más células que en los tratamientos 5.4:1 y 9.2:1. El contenido de total de toxinas por célula y la variación en el perfil de toxinas estuvo claramente relacionado con las tasas de crecimiento. La toxicidad se mantuvo relativamente constante debido, principalmente, a los cambios en el perfil que al contenido celular de toxinas en las diversas estapas de crecimiento. Estos datos sugieren que los cambios en la proporción de N:P no estimulan la producción de toxinas ni cambios en el perfil de toxinas paralizantes, pero sí afectan la densidad celular, y que la dinámica celular de toxinas está relacionada con la fase de crecimiento. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2011-11-23 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1916 10.7773/cm.v38i1A.1916 Ciencias Marinas; Vol. 38 No. 1A (2012); 101-117 Ciencias Marinas; Vol. 38 Núm. 1A (2012); 101-117 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1916/1688 ['Redalyc'] redalyc_48023242008 Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus ['Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus', 'JJ Bustillos-Guzmán', 'Ciencias de la Tierra', 'toxins', 'nitrogen', 'phosphorus', 'Gulf of California', 'Gymnodinium catenatum', 'Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus JJ Bustillos-Guzmán CJ Band-Schmidt DJ López-Cortés I Gárate-Lizárraga EJ Núñez-Vázquez FE Hernández-Sandoval Ciencias de la Tierra toxins nitrogen phosphorus Gulf of California Gymnodinium catenatum A strain of Gymnodinium catenatum Graham (GCCV-7), isolated from the Gulf of California, was submitted to conditions with different nitrogen-to-phosphorus ratios (5.4, 9.2, 23.5, 44.7, and 74.3) to determine the effect of these ratios on the growth, toxicity, and variations in toxin profile. No differences in toxicity and toxin profile were found among the treatments. Highest cell density occurred at the N:P ratio of 23.5:1, yielding 33% more cells than the 44.5:1 and 74.3:1 treatments, which in turn had 34% and 30% more cells than the 5.4:1 and 9.2:1 treatments. Toxin cell quota and variations in toxin composition were clearly related to growth rates. Toxicity remained relatively invariable because of changes in toxin composition rather than changes in the toxin cell quota during the different growth stages. The datasuggest that changes in the N:P ratios do not stimulate production of toxins or changes in toxin profiles, but do affect cell density, and that cellular toxin dynamics is related to the growth stage. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48023242008 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1A Vol.38'] ['JJ Bustillos-Guzmán'] ['JJ Bustillos-Guzmán'] ['Artículo científico'] ['2012'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'toxins', 'nitrogen', 'phosphorus', 'Gulf of California', 'Gymnodinium catenatum'] ['https://www.redalyc.org/articulo.oa?id=48023242008'] ['Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus JJ Bustillos-Guzmán CJ Band-Schmidt DJ López-Cortés I Gárate-Lizárraga EJ Núñez-Vázquez FE Hernández-Sandoval Ciencias de la Tierra toxins nitrogen phosphorus Gulf of California Gymnodinium catenatum A strain of Gymnodinium catenatum Graham (GCCV-7), isolated from the Gulf of California, was submitted to conditions with different nitrogen-to-phosphorus ratios (5.4, 9.2, 23.5, 44.7, and 74.3) to determine the effect of these ratios on the growth, toxicity, and variations in toxin profile. No differences in toxicity and toxin profile were found among the treatments. Highest cell density occurred at the N:P ratio of 23.5:1, yielding 33% more cells than the 44.5:1 and 74.3:1 treatments, which in turn had 34% and 30% more cells than the 5.4:1 and 9.2:1 treatments. Toxin cell quota and variations in toxin composition were clearly related to growth rates. Toxicity remained relatively invariable because of changes in toxin composition rather than changes in the toxin cell quota during the different growth stages. The datasuggest that changes in the N:P ratios do not stimulate production of toxins or changes in toxin profiles, but do affect cell density, and that cellular toxin dynamics is related to the growth stage. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48023242008 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1A Vol.38'] |
| spellingShingle | Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus JJ Bustillos-Guzmán Ciencias de la Tierra toxins nitrogen phosphorus Gulf of California Gymnodinium catenatum Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus JJ Bustillos-Guzmán CJ Band-Schmidt DJ López-Cortés I Gárate-Lizárraga EJ Núñez-Vázquez FE Hernández-Sandoval Ciencias de la Tierra toxins nitrogen phosphorus Gulf of California Gymnodinium catenatum A strain of Gymnodinium catenatum Graham (GCCV-7), isolated from the Gulf of California, was submitted to conditions with different nitrogen-to-phosphorus ratios (5.4, 9.2, 23.5, 44.7, and 74.3) to determine the effect of these ratios on the growth, toxicity, and variations in toxin profile. No differences in toxicity and toxin profile were found among the treatments. Highest cell density occurred at the N:P ratio of 23.5:1, yielding 33% more cells than the 44.5:1 and 74.3:1 treatments, which in turn had 34% and 30% more cells than the 5.4:1 and 9.2:1 treatments. Toxin cell quota and variations in toxin composition were clearly related to growth rates. Toxicity remained relatively invariable because of changes in toxin composition rather than changes in the toxin cell quota during the different growth stages. The datasuggest that changes in the N:P ratios do not stimulate production of toxins or changes in toxin profiles, but do affect cell density, and that cellular toxin dynamics is related to the growth stage. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48023242008 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1A Vol.38 |
| title | Variations in growth and toxicity in Gymnodinium catenatum Graham from the Gulf of California under different ratios of nitrogen and phosphorus |
| title_alt | Variaciones en el crecimiento y toxicidad en Gymnodinium catenatum Graham del golfo de California bajo diferentes proporciones de nitrógeno y fósforo |
| topic | Ciencias de la Tierra toxins nitrogen phosphorus Gulf of California Gymnodinium catenatum |
| topic_facet | Gymnodinium catenatum nitrogen phosphorus toxins Gulf of California nitrógeno fósforo toxinas golfo de California |
| url | https://www.redalyc.org/articulo.oa?id=48023242008 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1916 |