Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures

Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures

This study provides information on the combined effect of light quality and photon fluence rates (light intensity) on growth efficiency and pigment content of the coastal plankton diatoms Chaetoceros sp., Skeletonema costatum and Thalassiosira pseudonana. The relative growth efficiencies of the thre...

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Autores principales: Sánchez-Saavedra, MP, Voltolina, D
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2002
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/225
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spelling oai:cienciasmarinas.com.mx:article-2252019-04-30T20:13:47Z Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures Efecto de las tasas de flujo de fotones de luz blanca y azul-verde en la eficiencia del crecimiento y contenido de pigmentos de tres especies de diatomeas en cultivos terminales Sánchez-Saavedra, MP Voltolina, D Diatoms photon fluence rates light quality, chlorophyll a carotenoids growth efficiency Diatomeas tasas de flujo de fotones calidad de luz clorofila a carotenoides eficiencia de crecimiento This study provides information on the combined effect of light quality and photon fluence rates (light intensity) on growth efficiency and pigment content of the coastal plankton diatoms Chaetoceros sp., Skeletonema costatum and Thalassiosira pseudonana. The relative growth efficiencies of the three species were significantly higher at 210 µE m-2s-1, under mixed bluegreen light for Chaetoceros sp. and S. costatum, and with white light for T. pseudonana. The chlorophyll a contents of the three species grown under blue-green light, alone or mixed with white light, were significantly higher (P < 0.001) than those with white light and, in all cases, contents were lower at high photon fluence rates, while carotenoids showed inverse trends. The relative growth efficiencies of the three species were significantly different (P < 0.001). There were also changes in the relative pigment concentrations associated with the growth phase, probably due to autoshading. Este estudio provee información sobre el efecto combinado de la calidad de luz y las tasas de flujo de fotones (intensidad de luz) sobre la eficiencia en el crecimiento y el contenido de pigmentos de las diatomeas del plancton costero Chaetoceros sp., Skeletonema costatum y Thalassiosira pseudonana. Las eficiencias de crecimiento relativo de las tres especies fueron significativamente mayores a 210 µE m-2s-1, bajo una mezcla de luz azul-verde para Chaetoceros sp. y S. costatum y bajo luz blanca para T. pseudonana. Los contenidos de clorofila a de las tres especies expuestas a luz azul-verde sola o mezclada con luz blanca fueron significativamente mayores (P < 0.001) que con la luz blanca y, en todos los casos, éstos fueron menores a altas tasas de flujo de fotones, mientras que los carotenoides mostraron una tendencia inversa. Las eficiencias de crecimiento relativo de las tres especies fueron significativamente diferentes (P < 0.001). También hubo cambios en las concentraciones relativas de pigmento asociadas con la fase de crecimiento, probablemente debido al auto-sombreado. Iniversidad Autónoma de Baja California 2002-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/225 10.7773/cm.v28i3.225 Ciencias Marinas; Vol. 28 No. 3 (2002); 273-279 Ciencias Marinas; Vol. 28 Núm. 3 (2002); 273-279 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/225/192
institution Ciencias Marinas
collection OJS
language eng
format Online
author Sánchez-Saavedra, MP
Voltolina, D
spellingShingle Sánchez-Saavedra, MP
Voltolina, D
Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures
author_facet Sánchez-Saavedra, MP
Voltolina, D
author_sort Sánchez-Saavedra, MP
title Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures
title_short Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures
title_full Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures
title_fullStr Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures
title_full_unstemmed Effect of photon fluence rates of white and blue-green light on growth efficiency and Pigment Content Of Three Diatom Species In Batch Cultures
title_sort effect of photon fluence rates of white and blue-green light on growth efficiency and pigment content of three diatom species in batch cultures
description This study provides information on the combined effect of light quality and photon fluence rates (light intensity) on growth efficiency and pigment content of the coastal plankton diatoms Chaetoceros sp., Skeletonema costatum and Thalassiosira pseudonana. The relative growth efficiencies of the three species were significantly higher at 210 µE m-2s-1, under mixed bluegreen light for Chaetoceros sp. and S. costatum, and with white light for T. pseudonana. The chlorophyll a contents of the three species grown under blue-green light, alone or mixed with white light, were significantly higher (P < 0.001) than those with white light and, in all cases, contents were lower at high photon fluence rates, while carotenoids showed inverse trends. The relative growth efficiencies of the three species were significantly different (P < 0.001). There were also changes in the relative pigment concentrations associated with the growth phase, probably due to autoshading.
publisher Iniversidad Autónoma de Baja California
publishDate 2002
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/225
_version_ 1715723944560951296

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