Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)

 The effects of different incident irradiances on growth, photosynthesis, pigment content and nutrient uptake were studied in dense cultures of the cryptophyte Rhodomonas salina (Wislouch) Hill y Wetherbee. Cells were grown for ten days at different incident irradiances: 11, 33, 75, 260 and...

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Detalles Bibliográficos
Autores: Bartual, A, Lubián, LM, Gálvez, JA, Niell, FX
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2002
País:México
Institución:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
Repositorio:Ciencias Marinas
Idioma:inglés
OAI Identifier:oai:cienciasmarinas.com.mx:article/236
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/236
Access Level:acceso abierto
Palabra clave:Cryptophyceae
photoacclimation
phycoerythrin
P-I curves
Rhodomonas salina
fotoaclimatación
ficoeritrina
curvas P-I
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network_acronym_str MX
network_name_str México
repository_id_str
dc.title.none.fl_str_mv Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)
Efecto de la irradiancia en el crecimiento, fotosíntesis, contenido pigmentario y consumo de nutrientes en cultivos densos de Rhodomonas salina (Wislouch) (Cryptophyceae)
title Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)
spellingShingle Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)
Bartual, A
Cryptophyceae
photoacclimation
phycoerythrin
P-I curves
Rhodomonas salina
Cryptophyceae
fotoaclimatación
ficoeritrina
curvas P-I
Rhodomonas salina
title_short Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)
title_full Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)
title_fullStr Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)
title_full_unstemmed Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)
title_sort Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)
dc.creator.none.fl_str_mv Bartual, A
Lubián, LM
Gálvez, JA
Niell, FX
author Bartual, A
author_facet Bartual, A
Lubián, LM
Gálvez, JA
Niell, FX
author_role author
author2 Lubián, LM
Gálvez, JA
Niell, FX
author2_role author
author
author
dc.subject.none.fl_str_mv Cryptophyceae
photoacclimation
phycoerythrin
P-I curves
Rhodomonas salina
Cryptophyceae
fotoaclimatación
ficoeritrina
curvas P-I
Rhodomonas salina
topic Cryptophyceae
photoacclimation
phycoerythrin
P-I curves
Rhodomonas salina
Cryptophyceae
fotoaclimatación
ficoeritrina
curvas P-I
Rhodomonas salina
description  The effects of different incident irradiances on growth, photosynthesis, pigment content and nutrient uptake were studied in dense cultures of the cryptophyte Rhodomonas salina (Wislouch) Hill y Wetherbee. Cells were grown for ten days at different incident irradiances: 11, 33, 75, 260 and 320 µmol photon m-2s-1. The average pigment content (phycoerythrin and chlorophyll a) was lower when cells were grown at high irradiances (260 and 320 µmol photon m-2s-1) compared with cells grown under low irradiances (11, 33 and 75 µmol photon m-2s-1).The maximum photosynthetic rate (Pmax) was maximal at 75 µmol photon m-2s-1 , decreasing considerably at the highest irradiance in which apparent photosynthetic efficiency per cell and per chlorophyll a unit (αcell and αchla) also decreased. Results showed that dense cultures of R. salina grew optimally in a range between 75 and 260 µmol photon m-2s-1 with optimal photosynthetic performance at 75 µmol photon m-2s-1. Nitrogen and phosphorus depletion occurred as a consequence of the exponential growth, except under the lowest and the highest irradiances (11 and 320 µmol photon m-2s-1, respectively). Associated to N-limitation, phycoerythrin (PE) and chlorophyll a decreased considerably. It is suggested that R.salina responds to nitrogen-depleted conditions by mobilizing nitrogen from PE, this behaviour being modelled by a relationship between external nitrogen availability and PE mobilization.
publishDate 2002
dc.date.none.fl_str_mv 2002-03-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
Artículo Arbitrado
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/236
10.7773/cm.v28i4.236
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/236
identifier_str_mv 10.7773/cm.v28i4.236
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/236/200
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
dc.source.none.fl_str_mv Ciencias Marinas; Vol. 28 No. 4 (2002); 381-392
Ciencias Marinas; Vol. 28 Núm. 4 (2002); 381-392
2395-9053
0185-3880
reponame:Ciencias Marinas
instname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron:UABC
instname_str UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron_str UABC
institution UABC
reponame_str Ciencias Marinas
collection Ciencias Marinas
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1858177312603766784
spelling Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina (Wislouch) (Cryptophyceae)Efecto de la irradiancia en el crecimiento, fotosíntesis, contenido pigmentario y consumo de nutrientes en cultivos densos de Rhodomonas salina (Wislouch) (Cryptophyceae)Bartual, ALubián, LMGálvez, JANiell, FXCryptophyceaephotoacclimationphycoerythrinP-I curvesRhodomonas salinaCryptophyceaefotoaclimataciónficoeritrinacurvas P-IRhodomonas salina The effects of different incident irradiances on growth, photosynthesis, pigment content and nutrient uptake were studied in dense cultures of the cryptophyte Rhodomonas salina (Wislouch) Hill y Wetherbee. Cells were grown for ten days at different incident irradiances: 11, 33, 75, 260 and 320 µmol photon m-2s-1. The average pigment content (phycoerythrin and chlorophyll a) was lower when cells were grown at high irradiances (260 and 320 µmol photon m-2s-1) compared with cells grown under low irradiances (11, 33 and 75 µmol photon m-2s-1).The maximum photosynthetic rate (Pmax) was maximal at 75 µmol photon m-2s-1 , decreasing considerably at the highest irradiance in which apparent photosynthetic efficiency per cell and per chlorophyll a unit (αcell and αchla) also decreased. Results showed that dense cultures of R. salina grew optimally in a range between 75 and 260 µmol photon m-2s-1 with optimal photosynthetic performance at 75 µmol photon m-2s-1. Nitrogen and phosphorus depletion occurred as a consequence of the exponential growth, except under the lowest and the highest irradiances (11 and 320 µmol photon m-2s-1, respectively). Associated to N-limitation, phycoerythrin (PE) and chlorophyll a decreased considerably. It is suggested that R.salina responds to nitrogen-depleted conditions by mobilizing nitrogen from PE, this behaviour being modelled by a relationship between external nitrogen availability and PE mobilization.En este trabajo se analizan los efectos que diferentes irradiancias incidentes tienen en el crecimiento, características fotosintéticas, contenido pigmentario e incorporación de nutrientes en cultivos densos de la criptofita Rhodomonas salina (Wislouch) Hill y Wetherbee. Con tal fin, se mantuvieron cultivos durante diez días bajo distintas condiciones de luz incidente: 11, 33, 75, 260 y 320 µmol fotón m-2s-1. El contenido pigmentario promedio (ficoeritrina y clorofila a) fue menor en células adaptadas a las mayores irradiancias (260 y 320 µmol fotón m-2s-1) en comparación con las adaptadas a las irradiancias menores (11, 33 y 75 µmol fotón m-2s-1). El valor máximo de fotosíntesis (Pmax) se obtuvo para las células adaptadas a 75 µmol fotón m-2s-1, decreciendo considerablemente para la irradiancia máxima ensayada en la que también la eficiencia fotosintética (αcel. and αcla) fue menor. Los resultados muestran que esta criptofita crece óptimamente en cultivos densos en un rango de irradiancias incidentes entre 75 y 260 µmol fotón m-2s-1, con una actividad fotosintética óptima a 75 µmol fotón m-2s-1. Como consecuencia del crecimiento exponencial de los cultivos, se produjo una desaparición paulatina y prácticamente total del nitrógeno y el fósforo del medio, excepto en los cultivos adaptados a las irradiancias máxima (320 µmol fotón m-2s-1) y minima (11 µmol fotón m-2s-1) empleadas. Asociada a tales condiciones de limitación de nitrógeno se observó una disminución del contenido celular de ficoeritrina y clorofila a, definiéndose una clara relación entre la disponibilidad de nitrógeno externo y la tasa de desaparición de ficoeritrina. Estos resultados sugieren que Rhodomonas salina es capaz de movilizar el nitrógeno asociado a la ficoeritrina como respuesta ante condiciones de baja disponibilidad de dicho nutriente.Iniversidad Autónoma de Baja California2002-03-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Article Artículo Arbitradoapplication/pdfhttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/23610.7773/cm.v28i4.236Ciencias Marinas; Vol. 28 No. 4 (2002); 381-392Ciencias Marinas; Vol. 28 Núm. 4 (2002); 381-3922395-90530185-3880reponame:Ciencias Marinasinstname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIAinstacron:UABCenghttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/236/200info:eu-repo/semantics/openAccessoai:cienciasmarinas.com.mx:article/2362024-08-22T17:01:29Z
score 15,228081

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