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...
- Autores:
- 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
- Rights
- License
- Abierto (Texto Completo)
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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 |
_version_ |
1814167467621089280 |