Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis

Autores
Helbling, Eduardo Walter; Banaszak, Anastazia T.; Villafañe, Virginia Estela
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cyanobacteria are an important component of aquatic ecosystems, with a proliferation of massive cyanobacterial blooms predicted worldwide under increasing warming conditions. In addition to temperature, other global change related variables, such as water column stratification, increases in dissolved organic matter (DOM) discharge into freshwater systems and greater wind stress (i.e., more opaque and mixed upper water column/epilimnion) might also affect the responses of cyanobacteria. However, the combined effects of these variables on cyanobacterial photosynthesis remain virtually unknown. Here we present evidence that this combination of global-change conditions results in a feed-back mechanism by which, fluctuations in solar ultraviolet radiation (UVR, 280–400 nm) due to vertical mixing within the epilimnion act synergistically with increased DOM to impair cyanobacterial photosynthesis as the water column progressively darkens. The main consequence of such a feed-back response is that these organisms will not develop large blooms in areas of latitudes higher than 30°, in both the Northern and Southern Hemispheres, where DOM inputs and surface wind stress are increasing.
Fil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Banaszak, Anastazia T.. Universidad Nacional Autónoma de México; México
Fil: Villafañe, Virginia Estela. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
CIANOBACTERIAS
GLOBAL CHANGE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/43933
Acceder
id CONICETDig_8707ce4ab37808f4e291d600725c1eb1
oai_identifier_str oai:ri.conicet.gov.ar:11336/43933
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesisHelbling, Eduardo WalterBanaszak, Anastazia T.Villafañe, Virginia EstelaCIANOBACTERIASGLOBAL CHANGEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Cyanobacteria are an important component of aquatic ecosystems, with a proliferation of massive cyanobacterial blooms predicted worldwide under increasing warming conditions. In addition to temperature, other global change related variables, such as water column stratification, increases in dissolved organic matter (DOM) discharge into freshwater systems and greater wind stress (i.e., more opaque and mixed upper water column/epilimnion) might also affect the responses of cyanobacteria. However, the combined effects of these variables on cyanobacterial photosynthesis remain virtually unknown. Here we present evidence that this combination of global-change conditions results in a feed-back mechanism by which, fluctuations in solar ultraviolet radiation (UVR, 280–400 nm) due to vertical mixing within the epilimnion act synergistically with increased DOM to impair cyanobacterial photosynthesis as the water column progressively darkens. The main consequence of such a feed-back response is that these organisms will not develop large blooms in areas of latitudes higher than 30°, in both the Northern and Southern Hemispheres, where DOM inputs and surface wind stress are increasing.Fil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Banaszak, Anastazia T.. Universidad Nacional Autónoma de México; MéxicoFil: Villafañe, Virginia Estela. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaNature Publishing Group2015-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43933Helbling, Eduardo Walter; Banaszak, Anastazia T.; Villafañe, Virginia Estela; Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis; Nature Publishing Group; Nature Scientific Reports; 5; 9-2015; 1-62045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1038/srep14514info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/srep14514info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-05T09:53:31Zoai:ri.conicet.gov.ar:11336/43933instacron: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:34982025-11-05 09:53:31.48CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis
title Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis
spellingShingle Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis
Helbling, Eduardo Walter
CIANOBACTERIAS
GLOBAL CHANGE
title_short Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis
title_full Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis
title_fullStr Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis
title_full_unstemmed Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis
title_sort Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis
dc.creator.none.fl_str_mv Helbling, Eduardo Walter
Banaszak, Anastazia T.
Villafañe, Virginia Estela
author Helbling, Eduardo Walter
author_facet Helbling, Eduardo Walter
Banaszak, Anastazia T.
Villafañe, Virginia Estela
author_role author
author2 Banaszak, Anastazia T.
Villafañe, Virginia Estela
author2_role author
author
dc.subject.none.fl_str_mv CIANOBACTERIAS
GLOBAL CHANGE
topic CIANOBACTERIAS
GLOBAL CHANGE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Cyanobacteria are an important component of aquatic ecosystems, with a proliferation of massive cyanobacterial blooms predicted worldwide under increasing warming conditions. In addition to temperature, other global change related variables, such as water column stratification, increases in dissolved organic matter (DOM) discharge into freshwater systems and greater wind stress (i.e., more opaque and mixed upper water column/epilimnion) might also affect the responses of cyanobacteria. However, the combined effects of these variables on cyanobacterial photosynthesis remain virtually unknown. Here we present evidence that this combination of global-change conditions results in a feed-back mechanism by which, fluctuations in solar ultraviolet radiation (UVR, 280–400 nm) due to vertical mixing within the epilimnion act synergistically with increased DOM to impair cyanobacterial photosynthesis as the water column progressively darkens. The main consequence of such a feed-back response is that these organisms will not develop large blooms in areas of latitudes higher than 30°, in both the Northern and Southern Hemispheres, where DOM inputs and surface wind stress are increasing.
Fil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Banaszak, Anastazia T.. Universidad Nacional Autónoma de México; México
Fil: Villafañe, Virginia Estela. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Cyanobacteria are an important component of aquatic ecosystems, with a proliferation of massive cyanobacterial blooms predicted worldwide under increasing warming conditions. In addition to temperature, other global change related variables, such as water column stratification, increases in dissolved organic matter (DOM) discharge into freshwater systems and greater wind stress (i.e., more opaque and mixed upper water column/epilimnion) might also affect the responses of cyanobacteria. However, the combined effects of these variables on cyanobacterial photosynthesis remain virtually unknown. Here we present evidence that this combination of global-change conditions results in a feed-back mechanism by which, fluctuations in solar ultraviolet radiation (UVR, 280–400 nm) due to vertical mixing within the epilimnion act synergistically with increased DOM to impair cyanobacterial photosynthesis as the water column progressively darkens. The main consequence of such a feed-back response is that these organisms will not develop large blooms in areas of latitudes higher than 30°, in both the Northern and Southern Hemispheres, where DOM inputs and surface wind stress are increasing.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
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/11336/43933
Helbling, Eduardo Walter; Banaszak, Anastazia T.; Villafañe, Virginia Estela; Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis; Nature Publishing Group; Nature Scientific Reports; 5; 9-2015; 1-6
2045-2322
CONICET Digital
CONICET
url http://hdl.handle.net/11336/43933
identifier_str_mv Helbling, Eduardo Walter; Banaszak, Anastazia T.; Villafañe, Virginia Estela; Global change feed-back linking water transparency, mixing, and solar UVR inhibits cyanobacterial photosynthesis; Nature Publishing Group; Nature Scientific Reports; 5; 9-2015; 1-6
2045-2322
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1038/srep14514
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/srep14514
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
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
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
_version_ 1847977282213249024
score 13.087074

Publicaciones similares