Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists
- Autores
- Schenone, Luca; Balseiro, Esteban Gabriel; Modenutti, Beatriz Estela
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Mixotrophic protists display contrasting nutritional strategies and are key groups connecting planktonic food webs. They comprise constitutive mixotrophs (CMs) that have an innate photosynthetic ability and non-constitutive mixotrophs (NCMs) that acquire it from their prey. We modelled phototrophy and phagotrophy of two mixotrophic protists as a function of irradiance and prey abundance. We hypothesised that differences in their physiology (constitutive versus non-constitutive mixotrophy) can result in different responses to light gradients. We fitted the models with primary production and bacterivory data from laboratory and field experiments with the nanoflagellate Chrysochromulina parva (CM) and the ciliate Ophrydium naumanni (NCM) from north Andean Patagonian lakes. We found a non-monotonic response of phototrophy and phagotrophy to irradiance in both mixotrophs, which was successfully represented by our models. Maximum values for phototrophy and phagotrophy were found at intermediate irradiance coinciding with the light at the deep chlorophyll maxima in these lakes. At lower and higher irradiances, we found a decoupling between phototrophy and phagotrophy in the NCM while these functions were more coupled in the CM. Our modelling approach revealed the difference between both mixotrophic functional types on the balance between their nutritional strategies under different light scenarios. Thus, our proposed models can be applied to account how changing environmental conditions affect both primary and secondary production within the planktonic microbial food web.
Fil: Schenone, Luca. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Balseiro, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Modenutti, Beatriz Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina - Materia
-
BACTERIVORY
IRRADIANCE
MICROBIAL LOOP
MODELLING
PRIMARY PRODUCTION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/202378
Ver los metadatos del registro completo
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Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protistsSchenone, LucaBalseiro, Esteban GabrielModenutti, Beatriz EstelaBACTERIVORYIRRADIANCEMICROBIAL LOOPMODELLINGPRIMARY PRODUCTIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Mixotrophic protists display contrasting nutritional strategies and are key groups connecting planktonic food webs. They comprise constitutive mixotrophs (CMs) that have an innate photosynthetic ability and non-constitutive mixotrophs (NCMs) that acquire it from their prey. We modelled phototrophy and phagotrophy of two mixotrophic protists as a function of irradiance and prey abundance. We hypothesised that differences in their physiology (constitutive versus non-constitutive mixotrophy) can result in different responses to light gradients. We fitted the models with primary production and bacterivory data from laboratory and field experiments with the nanoflagellate Chrysochromulina parva (CM) and the ciliate Ophrydium naumanni (NCM) from north Andean Patagonian lakes. We found a non-monotonic response of phototrophy and phagotrophy to irradiance in both mixotrophs, which was successfully represented by our models. Maximum values for phototrophy and phagotrophy were found at intermediate irradiance coinciding with the light at the deep chlorophyll maxima in these lakes. At lower and higher irradiances, we found a decoupling between phototrophy and phagotrophy in the NCM while these functions were more coupled in the CM. Our modelling approach revealed the difference between both mixotrophic functional types on the balance between their nutritional strategies under different light scenarios. Thus, our proposed models can be applied to account how changing environmental conditions affect both primary and secondary production within the planktonic microbial food web.Fil: Schenone, Luca. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Balseiro, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Modenutti, Beatriz Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaSpringer2022-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/202378Schenone, Luca; Balseiro, Esteban Gabriel; Modenutti, Beatriz Estela; Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists; Springer; Oecologia; 200; 3-4; 8-2022; 295-3060029-8549CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1007/s00442-022-05226-4info:eu-repo/semantics/altIdentifier/doi/10.1007/s00442-022-05226-4info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:53:26Zoai:ri.conicet.gov.ar:11336/202378instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:53:26.573CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists |
title |
Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists |
spellingShingle |
Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists Schenone, Luca BACTERIVORY IRRADIANCE MICROBIAL LOOP MODELLING PRIMARY PRODUCTION |
title_short |
Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists |
title_full |
Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists |
title_fullStr |
Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists |
title_full_unstemmed |
Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists |
title_sort |
Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists |
dc.creator.none.fl_str_mv |
Schenone, Luca Balseiro, Esteban Gabriel Modenutti, Beatriz Estela |
author |
Schenone, Luca |
author_facet |
Schenone, Luca Balseiro, Esteban Gabriel Modenutti, Beatriz Estela |
author_role |
author |
author2 |
Balseiro, Esteban Gabriel Modenutti, Beatriz Estela |
author2_role |
author author |
dc.subject.none.fl_str_mv |
BACTERIVORY IRRADIANCE MICROBIAL LOOP MODELLING PRIMARY PRODUCTION |
topic |
BACTERIVORY IRRADIANCE MICROBIAL LOOP MODELLING PRIMARY PRODUCTION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Mixotrophic protists display contrasting nutritional strategies and are key groups connecting planktonic food webs. They comprise constitutive mixotrophs (CMs) that have an innate photosynthetic ability and non-constitutive mixotrophs (NCMs) that acquire it from their prey. We modelled phototrophy and phagotrophy of two mixotrophic protists as a function of irradiance and prey abundance. We hypothesised that differences in their physiology (constitutive versus non-constitutive mixotrophy) can result in different responses to light gradients. We fitted the models with primary production and bacterivory data from laboratory and field experiments with the nanoflagellate Chrysochromulina parva (CM) and the ciliate Ophrydium naumanni (NCM) from north Andean Patagonian lakes. We found a non-monotonic response of phototrophy and phagotrophy to irradiance in both mixotrophs, which was successfully represented by our models. Maximum values for phototrophy and phagotrophy were found at intermediate irradiance coinciding with the light at the deep chlorophyll maxima in these lakes. At lower and higher irradiances, we found a decoupling between phototrophy and phagotrophy in the NCM while these functions were more coupled in the CM. Our modelling approach revealed the difference between both mixotrophic functional types on the balance between their nutritional strategies under different light scenarios. Thus, our proposed models can be applied to account how changing environmental conditions affect both primary and secondary production within the planktonic microbial food web. Fil: Schenone, Luca. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina Fil: Balseiro, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina Fil: Modenutti, Beatriz Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina |
description |
Mixotrophic protists display contrasting nutritional strategies and are key groups connecting planktonic food webs. They comprise constitutive mixotrophs (CMs) that have an innate photosynthetic ability and non-constitutive mixotrophs (NCMs) that acquire it from their prey. We modelled phototrophy and phagotrophy of two mixotrophic protists as a function of irradiance and prey abundance. We hypothesised that differences in their physiology (constitutive versus non-constitutive mixotrophy) can result in different responses to light gradients. We fitted the models with primary production and bacterivory data from laboratory and field experiments with the nanoflagellate Chrysochromulina parva (CM) and the ciliate Ophrydium naumanni (NCM) from north Andean Patagonian lakes. We found a non-monotonic response of phototrophy and phagotrophy to irradiance in both mixotrophs, which was successfully represented by our models. Maximum values for phototrophy and phagotrophy were found at intermediate irradiance coinciding with the light at the deep chlorophyll maxima in these lakes. At lower and higher irradiances, we found a decoupling between phototrophy and phagotrophy in the NCM while these functions were more coupled in the CM. Our modelling approach revealed the difference between both mixotrophic functional types on the balance between their nutritional strategies under different light scenarios. Thus, our proposed models can be applied to account how changing environmental conditions affect both primary and secondary production within the planktonic microbial food web. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-08 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/202378 Schenone, Luca; Balseiro, Esteban Gabriel; Modenutti, Beatriz Estela; Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists; Springer; Oecologia; 200; 3-4; 8-2022; 295-306 0029-8549 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/202378 |
identifier_str_mv |
Schenone, Luca; Balseiro, Esteban Gabriel; Modenutti, Beatriz Estela; Light dependence in the phototrophy–phagotrophy balance of constitutive and non-constitutive mixotrophic protists; Springer; Oecologia; 200; 3-4; 8-2022; 295-306 0029-8549 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1007/s00442-022-05226-4 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00442-022-05226-4 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |