Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water

Autores
Scholz, Fabian Gustavo; Bucci, Sandra Janet; Goldstein, Guillermo Hernan; Meinzer, Frederick C.; Franco, Augusto C.; Miralles Wilhelm, Fernando
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Relationships between diel changes in stem expansion and contraction and discharge and refilling of stem water storage tissues were studied in six dominant Neotropical savanna (Cerrado) tree species from Central Brazil. Two stem tissues were studied, the active xylem or sapwood, and the living tissues located between the cambium and the cork, made up predominantly of parenchyma cells (outer parenchyma). Outer parenchyma and sapwood density ranged from 320 to 410 kg m-3, and from 420 to 620 kg m-3, respectively, depending on the species. The denser sapwood tissues exhibited smaller relative changes in cross-sectional area per unit change in water potential compared to the outer parenchyma. Despite undergoing smaller relative changes in cross-sectional area, the sapwood released about 3.5 times as much stored water for a given change in area as the outer parenchyma. Cross-sectional area decreased earlier in the morning in the outer parenchyma than in the sapwood with lag times up to 30 min for most species. The relatively small lag time between dimensional changes of the two tissues suggested that they were hydraulically well connected with each other. The initial morning increase in basal sap flow lagged about 10 to 130 min behind that of branch sap flow. Species-specific lag times between morning declines in branch and main stem cross-sectional area were a function of relative stem water storage capacity, which ranged from 16 to 31% of total diurnal water loss. Reliance on stored water to temporarily replace transpirational losses is one of the homeostatic mechanisms that constrain the magnitude of leaf water deficits in Cerrado trees.
Fil: Scholz, Fabian Gustavo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Miami University; Estados Unidos
Fil: Bucci, Sandra Janet. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Miami University; Estados Unidos
Fil: Goldstein, Guillermo Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Meinzer, Frederick C.. Forestry Sciences Laboratory; Estados Unidos
Fil: Franco, Augusto C.. Universidade de Brasília; Brasil
Fil: Miralles Wilhelm, Fernando. Florida International University; Estados Unidos
Materia
Capacitance
Electronic dendrometers
Cerrado
Water storage
Sap flow
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:11336/101789
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/101789
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored waterScholz, Fabian GustavoBucci, Sandra JanetGoldstein, Guillermo HernanMeinzer, Frederick C.Franco, Augusto C.Miralles Wilhelm, FernandoCapacitanceElectronic dendrometersCerradoWater storageSap flowhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Relationships between diel changes in stem expansion and contraction and discharge and refilling of stem water storage tissues were studied in six dominant Neotropical savanna (Cerrado) tree species from Central Brazil. Two stem tissues were studied, the active xylem or sapwood, and the living tissues located between the cambium and the cork, made up predominantly of parenchyma cells (outer parenchyma). Outer parenchyma and sapwood density ranged from 320 to 410 kg m-3, and from 420 to 620 kg m-3, respectively, depending on the species. The denser sapwood tissues exhibited smaller relative changes in cross-sectional area per unit change in water potential compared to the outer parenchyma. Despite undergoing smaller relative changes in cross-sectional area, the sapwood released about 3.5 times as much stored water for a given change in area as the outer parenchyma. Cross-sectional area decreased earlier in the morning in the outer parenchyma than in the sapwood with lag times up to 30 min for most species. The relatively small lag time between dimensional changes of the two tissues suggested that they were hydraulically well connected with each other. The initial morning increase in basal sap flow lagged about 10 to 130 min behind that of branch sap flow. Species-specific lag times between morning declines in branch and main stem cross-sectional area were a function of relative stem water storage capacity, which ranged from 16 to 31% of total diurnal water loss. Reliance on stored water to temporarily replace transpirational losses is one of the homeostatic mechanisms that constrain the magnitude of leaf water deficits in Cerrado trees.Fil: Scholz, Fabian Gustavo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Miami University; Estados UnidosFil: Bucci, Sandra Janet. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Miami University; Estados UnidosFil: Goldstein, Guillermo Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Meinzer, Frederick C.. Forestry Sciences Laboratory; Estados UnidosFil: Franco, Augusto C.. Universidade de Brasília; BrasilFil: Miralles Wilhelm, Fernando. Florida International University; Estados UnidosOxford University Press2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/101789Scholz, Fabian Gustavo; Bucci, Sandra Janet; Goldstein, Guillermo Hernan; Meinzer, Frederick C.; Franco, Augusto C.; et al.; Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water; Oxford University Press; Tree Physiology; 28; 3; 12-2008; 469-4800829-318XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/treephys/article/28/3/469/1655279info:eu-repo/semantics/altIdentifier/doi/10.1093/treephys/28.3.469info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:33Zoai:ri.conicet.gov.ar:11336/101789instacron: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 10:46:33.502CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water
title Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water
spellingShingle Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water
Scholz, Fabian Gustavo
Capacitance
Electronic dendrometers
Cerrado
Water storage
Sap flow
title_short Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water
title_full Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water
title_fullStr Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water
title_full_unstemmed Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water
title_sort Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water
dc.creator.none.fl_str_mv Scholz, Fabian Gustavo
Bucci, Sandra Janet
Goldstein, Guillermo Hernan
Meinzer, Frederick C.
Franco, Augusto C.
Miralles Wilhelm, Fernando
author Scholz, Fabian Gustavo
author_facet Scholz, Fabian Gustavo
Bucci, Sandra Janet
Goldstein, Guillermo Hernan
Meinzer, Frederick C.
Franco, Augusto C.
Miralles Wilhelm, Fernando
author_role author
author2 Bucci, Sandra Janet
Goldstein, Guillermo Hernan
Meinzer, Frederick C.
Franco, Augusto C.
Miralles Wilhelm, Fernando
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Capacitance
Electronic dendrometers
Cerrado
Water storage
Sap flow
topic Capacitance
Electronic dendrometers
Cerrado
Water storage
Sap flow
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Relationships between diel changes in stem expansion and contraction and discharge and refilling of stem water storage tissues were studied in six dominant Neotropical savanna (Cerrado) tree species from Central Brazil. Two stem tissues were studied, the active xylem or sapwood, and the living tissues located between the cambium and the cork, made up predominantly of parenchyma cells (outer parenchyma). Outer parenchyma and sapwood density ranged from 320 to 410 kg m-3, and from 420 to 620 kg m-3, respectively, depending on the species. The denser sapwood tissues exhibited smaller relative changes in cross-sectional area per unit change in water potential compared to the outer parenchyma. Despite undergoing smaller relative changes in cross-sectional area, the sapwood released about 3.5 times as much stored water for a given change in area as the outer parenchyma. Cross-sectional area decreased earlier in the morning in the outer parenchyma than in the sapwood with lag times up to 30 min for most species. The relatively small lag time between dimensional changes of the two tissues suggested that they were hydraulically well connected with each other. The initial morning increase in basal sap flow lagged about 10 to 130 min behind that of branch sap flow. Species-specific lag times between morning declines in branch and main stem cross-sectional area were a function of relative stem water storage capacity, which ranged from 16 to 31% of total diurnal water loss. Reliance on stored water to temporarily replace transpirational losses is one of the homeostatic mechanisms that constrain the magnitude of leaf water deficits in Cerrado trees.
Fil: Scholz, Fabian Gustavo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Miami University; Estados Unidos
Fil: Bucci, Sandra Janet. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Miami University; Estados Unidos
Fil: Goldstein, Guillermo Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Meinzer, Frederick C.. Forestry Sciences Laboratory; Estados Unidos
Fil: Franco, Augusto C.. Universidade de Brasília; Brasil
Fil: Miralles Wilhelm, Fernando. Florida International University; Estados Unidos
description Relationships between diel changes in stem expansion and contraction and discharge and refilling of stem water storage tissues were studied in six dominant Neotropical savanna (Cerrado) tree species from Central Brazil. Two stem tissues were studied, the active xylem or sapwood, and the living tissues located between the cambium and the cork, made up predominantly of parenchyma cells (outer parenchyma). Outer parenchyma and sapwood density ranged from 320 to 410 kg m-3, and from 420 to 620 kg m-3, respectively, depending on the species. The denser sapwood tissues exhibited smaller relative changes in cross-sectional area per unit change in water potential compared to the outer parenchyma. Despite undergoing smaller relative changes in cross-sectional area, the sapwood released about 3.5 times as much stored water for a given change in area as the outer parenchyma. Cross-sectional area decreased earlier in the morning in the outer parenchyma than in the sapwood with lag times up to 30 min for most species. The relatively small lag time between dimensional changes of the two tissues suggested that they were hydraulically well connected with each other. The initial morning increase in basal sap flow lagged about 10 to 130 min behind that of branch sap flow. Species-specific lag times between morning declines in branch and main stem cross-sectional area were a function of relative stem water storage capacity, which ranged from 16 to 31% of total diurnal water loss. Reliance on stored water to temporarily replace transpirational losses is one of the homeostatic mechanisms that constrain the magnitude of leaf water deficits in Cerrado trees.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/101789
Scholz, Fabian Gustavo; Bucci, Sandra Janet; Goldstein, Guillermo Hernan; Meinzer, Frederick C.; Franco, Augusto C.; et al.; Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water; Oxford University Press; Tree Physiology; 28; 3; 12-2008; 469-480
0829-318X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/101789
identifier_str_mv Scholz, Fabian Gustavo; Bucci, Sandra Janet; Goldstein, Guillermo Hernan; Meinzer, Frederick C.; Franco, Augusto C.; et al.; Temporal dynamics of stem expansion and contraction in savanna trees: withdrawal and recharge of stored water; Oxford University Press; Tree Physiology; 28; 3; 12-2008; 469-480
0829-318X
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://academic.oup.com/treephys/article/28/3/469/1655279
info:eu-repo/semantics/altIdentifier/doi/10.1093/treephys/28.3.469
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
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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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score 13.070432

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