Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.

During fall leaf senescence in deciduous species, photosynthesis nears completion due to chlorophyll breakdown and re-assimilation. However, several other processes such as leaf nutrient uptake, re-translocation, and storage, or tissue dehydration to avoid frost damage, may be important and dependen...

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Tipo de recurso:
Fecha de publicación:
2013
Institución:
Universidad del Rosario
Repositorio:
Repositorio EdocUR - U. Rosario
Idioma:
eng
OAI Identifier:
oai:repository.urosario.edu.co:10336/27212
Acceso en línea:
https://doi.org/10.4081/pb.2013.e7
https://repository.urosario.edu.co/handle/10336/27212
Palabra clave:
Fall leaf senescence
Leaf conductance
Photosynthesis
Water use efficiency
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id EDOCUR2_b3e8b33943acdedce747e35b91c51d4c
oai_identifier_str oai:repository.urosario.edu.co:10336/27212
network_acronym_str EDOCUR2
network_name_str Repositorio EdocUR - U. Rosario
repository_id_str
spelling 526995856009866d3b6-e3c7-4e27-9470-d889242a6090-10e07057d-b384-4237-9667-0153fbaa86c3-12020-08-19T14:41:21Z2020-08-19T14:41:21Z2013During fall leaf senescence in deciduous species, photosynthesis nears completion due to chlorophyll breakdown and re-assimilation. However, several other processes such as leaf nutrient uptake, re-translocation, and storage, or tissue dehydration to avoid frost damage, may be important and dependent upon stomatal opening. We report here on measured changes in photosynthesis (A), leaf conductance to water vapor (g), and WUE (estimated by A/g) in three deciduous tree species (Acer saccharum, Cornus florida, and Ginkgo biloba) during the weeks of leaf senescence preceding abscission. Substantial decreases in A of 60 up to 80% were not matched quantitatively by similar declines in g (40 to 70%), resulting in corresponding decreases in WUE (estimated by A/g) from near 50% to over 300% among the three species. This shift to a lower WUE may reflect adaptive value in maintaining a higher g relative to A during the fall leaf senescence period.application/pdfhttps://doi.org/10.4081/pb.2013.e7ISSN: 2037-0156EISSN: 2037-0164https://repository.urosario.edu.co/handle/10336/27212engPAGEPressNo. 1International Journal of Plant BiologyVol. 4International Journal of Plant Biology, ISSN: 2037-0156; EISSN: 2037-0164, Vol.4, No.1 (2013)https://www.pagepress.org/journals/index.php/pb/article/view/pb.2013.e7/4084Abierto (Texto Completo)http://purl.org/coar/access_right/c_abf2International Journal of Plant Biologyinstname:Universidad del Rosarioreponame:Repositorio Institucional EdocURFall leaf senescenceLeaf conductancePhotosynthesisWater use efficiencyWater-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.La eficiencia del uso del agua disminuye durante la senescencia de las hojas en otoño en tres especies de árboles de hoja caduca, piedemonte de Carolina del Norte, EE. UU.articleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Sánchez Andrade, AdrianaHughes, Nicole MSmith, William K10336/27212oai:repository.urosario.edu.co:10336/272122021-06-03 00:50:07.904https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co
dc.title.spa.fl_str_mv Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.
dc.title.TranslatedTitle.spa.fl_str_mv La eficiencia del uso del agua disminuye durante la senescencia de las hojas en otoño en tres especies de árboles de hoja caduca, piedemonte de Carolina del Norte, EE. UU.
title Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.
spellingShingle Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.
Fall leaf senescence
Leaf conductance
Photosynthesis
Water use efficiency
title_short Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.
title_full Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.
title_fullStr Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.
title_full_unstemmed Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.
title_sort Water-use efficiency declines during autumn leaf senescence in three deciduous tree species, North Carolina piedmont, USA.
dc.subject.keyword.spa.fl_str_mv Fall leaf senescence
Leaf conductance
Photosynthesis
Water use efficiency
topic Fall leaf senescence
Leaf conductance
Photosynthesis
Water use efficiency
description During fall leaf senescence in deciduous species, photosynthesis nears completion due to chlorophyll breakdown and re-assimilation. However, several other processes such as leaf nutrient uptake, re-translocation, and storage, or tissue dehydration to avoid frost damage, may be important and dependent upon stomatal opening. We report here on measured changes in photosynthesis (A), leaf conductance to water vapor (g), and WUE (estimated by A/g) in three deciduous tree species (Acer saccharum, Cornus florida, and Ginkgo biloba) during the weeks of leaf senescence preceding abscission. Substantial decreases in A of 60 up to 80% were not matched quantitatively by similar declines in g (40 to 70%), resulting in corresponding decreases in WUE (estimated by A/g) from near 50% to over 300% among the three species. This shift to a lower WUE may reflect adaptive value in maintaining a higher g relative to A during the fall leaf senescence period.
publishDate 2013
dc.date.created.spa.fl_str_mv 2013
dc.date.accessioned.none.fl_str_mv 2020-08-19T14:41:21Z
dc.date.available.none.fl_str_mv 2020-08-19T14:41:21Z
dc.type.eng.fl_str_mv article
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.spa.spa.fl_str_mv Artículo
dc.identifier.doi.none.fl_str_mv https://doi.org/10.4081/pb.2013.e7
dc.identifier.issn.none.fl_str_mv ISSN: 2037-0156
EISSN: 2037-0164
dc.identifier.uri.none.fl_str_mv https://repository.urosario.edu.co/handle/10336/27212
url https://doi.org/10.4081/pb.2013.e7
https://repository.urosario.edu.co/handle/10336/27212
identifier_str_mv ISSN: 2037-0156
EISSN: 2037-0164
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.citationIssue.none.fl_str_mv No. 1
dc.relation.citationTitle.none.fl_str_mv International Journal of Plant Biology
dc.relation.citationVolume.none.fl_str_mv Vol. 4
dc.relation.ispartof.spa.fl_str_mv International Journal of Plant Biology, ISSN: 2037-0156; EISSN: 2037-0164, Vol.4, No.1 (2013)
dc.relation.uri.spa.fl_str_mv https://www.pagepress.org/journals/index.php/pb/article/view/pb.2013.e7/4084
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.acceso.spa.fl_str_mv Abierto (Texto Completo)
rights_invalid_str_mv Abierto (Texto Completo)
http://purl.org/coar/access_right/c_abf2
dc.format.mimetype.none.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv PAGEPress
dc.source.spa.fl_str_mv International Journal of Plant Biology
institution Universidad del Rosario
dc.source.instname.none.fl_str_mv instname:Universidad del Rosario
dc.source.reponame.none.fl_str_mv reponame:Repositorio Institucional EdocUR
repository.name.fl_str_mv Repositorio institucional EdocUR
repository.mail.fl_str_mv edocur@urosario.edu.co
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