Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina
- Autores
- Saha, Sonali; Holbrook, Michell N; Montti, Lia Fernanda; Goldstein, Guillermo Hernan; Knust Cardinot, Gina
- Año de publicación
- 2009
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Bamboos are prominent components of many tropical ecosystems, yet little is known about the physiological mechanisms utilized by these gigantic forest grasses. Here, we present data on the water transport properties of Chusquea ramosissima and Merostachys claussenii, monocarpic bamboo grasses native to the subtropical Atlantic forests of Argentina. C. ramosissima and M. claussenii differed in their growth form and exhibited contrasting strategies of water transport. Maximum xylem hydraulic conductivity of C. ramosissima culms was 2-fold higher than that of M. claussenii. C. ramosissima cavitated at relatively high water potentials (50% loss of conductivity at ≥1 MPa), whereas M. claussenii was more drought tolerant (50% loss at ≤3 MPa). Both species exhibited significant loss of hydraulic conductivity during the day, which was reversed overnight due to the generation of root pressure. The photosynthetic capacities of both bamboo species, estimated based on electron transport rates, were moderate, reflecting both the large amount of leaf area supported by culms and diurnal loss of hydraulic conductivity due to cavitation. Leaf hydraulic conductance was also relatively low for both species, congruent with their modest photosynthetic capacities. Within its native range, C. ramosissima is highly invasive due to its ability to colonize and persist in both forest gaps and land cleared for agriculture. We propose that a highly vulnerable vasculature, coupled with diurnal root pressure and an allometry that allows substantial leaf area to be supported on relatively slender culms, are key traits contributing to the ecological success of C. ramosissima.
Fil: Saha, Sonali. Harvard University; Estados Unidos
Fil: Holbrook, Michell N. Harvard University; Estados Unidos
Fil: Montti, Lia Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina
Fil: Goldstein, Guillermo Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina
Fil: Knust Cardinot, Gina. Instituto de Pesquisa Ambiental da Amazônia; Brasil - Materia
-
Bamboo
Atlantic Forest
Hydraulic Conductivity
Root Pressure - 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:11336/74995
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Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, ArgentinaSaha, SonaliHolbrook, Michell NMontti, Lia FernandaGoldstein, Guillermo HernanKnust Cardinot, GinaBambooAtlantic ForestHydraulic ConductivityRoot Pressurehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Bamboos are prominent components of many tropical ecosystems, yet little is known about the physiological mechanisms utilized by these gigantic forest grasses. Here, we present data on the water transport properties of Chusquea ramosissima and Merostachys claussenii, monocarpic bamboo grasses native to the subtropical Atlantic forests of Argentina. C. ramosissima and M. claussenii differed in their growth form and exhibited contrasting strategies of water transport. Maximum xylem hydraulic conductivity of C. ramosissima culms was 2-fold higher than that of M. claussenii. C. ramosissima cavitated at relatively high water potentials (50% loss of conductivity at ≥1 MPa), whereas M. claussenii was more drought tolerant (50% loss at ≤3 MPa). Both species exhibited significant loss of hydraulic conductivity during the day, which was reversed overnight due to the generation of root pressure. The photosynthetic capacities of both bamboo species, estimated based on electron transport rates, were moderate, reflecting both the large amount of leaf area supported by culms and diurnal loss of hydraulic conductivity due to cavitation. Leaf hydraulic conductance was also relatively low for both species, congruent with their modest photosynthetic capacities. Within its native range, C. ramosissima is highly invasive due to its ability to colonize and persist in both forest gaps and land cleared for agriculture. We propose that a highly vulnerable vasculature, coupled with diurnal root pressure and an allometry that allows substantial leaf area to be supported on relatively slender culms, are key traits contributing to the ecological success of C. ramosissima.Fil: Saha, Sonali. Harvard University; Estados UnidosFil: Holbrook, Michell N. Harvard University; Estados UnidosFil: Montti, Lia Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; ArgentinaFil: Goldstein, Guillermo Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; ArgentinaFil: Knust Cardinot, Gina. Instituto de Pesquisa Ambiental da Amazônia; BrasilAmerican Society of Plant Biologist2009-04info: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/11336/74995Saha, Sonali; Holbrook, Michell N; Montti, Lia Fernanda; Goldstein, Guillermo Hernan; Knust Cardinot, Gina; Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina; American Society of Plant Biologist; Plant Physiology; 149; 4; 4-2009; 1992-19991532-25480032-0889CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1104/pp.108.129015info:eu-repo/semantics/altIdentifier/url/http://www.plantphysiol.org/content/149/4/1992info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2663761/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:39:43Zoai:ri.conicet.gov.ar:11336/74995instacron: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 10:39:43.879CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina |
title |
Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina |
spellingShingle |
Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina Saha, Sonali Bamboo Atlantic Forest Hydraulic Conductivity Root Pressure |
title_short |
Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina |
title_full |
Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina |
title_fullStr |
Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina |
title_full_unstemmed |
Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina |
title_sort |
Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina |
dc.creator.none.fl_str_mv |
Saha, Sonali Holbrook, Michell N Montti, Lia Fernanda Goldstein, Guillermo Hernan Knust Cardinot, Gina |
author |
Saha, Sonali |
author_facet |
Saha, Sonali Holbrook, Michell N Montti, Lia Fernanda Goldstein, Guillermo Hernan Knust Cardinot, Gina |
author_role |
author |
author2 |
Holbrook, Michell N Montti, Lia Fernanda Goldstein, Guillermo Hernan Knust Cardinot, Gina |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Bamboo Atlantic Forest Hydraulic Conductivity Root Pressure |
topic |
Bamboo Atlantic Forest Hydraulic Conductivity Root Pressure |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Bamboos are prominent components of many tropical ecosystems, yet little is known about the physiological mechanisms utilized by these gigantic forest grasses. Here, we present data on the water transport properties of Chusquea ramosissima and Merostachys claussenii, monocarpic bamboo grasses native to the subtropical Atlantic forests of Argentina. C. ramosissima and M. claussenii differed in their growth form and exhibited contrasting strategies of water transport. Maximum xylem hydraulic conductivity of C. ramosissima culms was 2-fold higher than that of M. claussenii. C. ramosissima cavitated at relatively high water potentials (50% loss of conductivity at ≥1 MPa), whereas M. claussenii was more drought tolerant (50% loss at ≤3 MPa). Both species exhibited significant loss of hydraulic conductivity during the day, which was reversed overnight due to the generation of root pressure. The photosynthetic capacities of both bamboo species, estimated based on electron transport rates, were moderate, reflecting both the large amount of leaf area supported by culms and diurnal loss of hydraulic conductivity due to cavitation. Leaf hydraulic conductance was also relatively low for both species, congruent with their modest photosynthetic capacities. Within its native range, C. ramosissima is highly invasive due to its ability to colonize and persist in both forest gaps and land cleared for agriculture. We propose that a highly vulnerable vasculature, coupled with diurnal root pressure and an allometry that allows substantial leaf area to be supported on relatively slender culms, are key traits contributing to the ecological success of C. ramosissima. Fil: Saha, Sonali. Harvard University; Estados Unidos Fil: Holbrook, Michell N. Harvard University; Estados Unidos Fil: Montti, Lia Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina Fil: Goldstein, Guillermo Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina Fil: Knust Cardinot, Gina. Instituto de Pesquisa Ambiental da Amazônia; Brasil |
description |
Bamboos are prominent components of many tropical ecosystems, yet little is known about the physiological mechanisms utilized by these gigantic forest grasses. Here, we present data on the water transport properties of Chusquea ramosissima and Merostachys claussenii, monocarpic bamboo grasses native to the subtropical Atlantic forests of Argentina. C. ramosissima and M. claussenii differed in their growth form and exhibited contrasting strategies of water transport. Maximum xylem hydraulic conductivity of C. ramosissima culms was 2-fold higher than that of M. claussenii. C. ramosissima cavitated at relatively high water potentials (50% loss of conductivity at ≥1 MPa), whereas M. claussenii was more drought tolerant (50% loss at ≤3 MPa). Both species exhibited significant loss of hydraulic conductivity during the day, which was reversed overnight due to the generation of root pressure. The photosynthetic capacities of both bamboo species, estimated based on electron transport rates, were moderate, reflecting both the large amount of leaf area supported by culms and diurnal loss of hydraulic conductivity due to cavitation. Leaf hydraulic conductance was also relatively low for both species, congruent with their modest photosynthetic capacities. Within its native range, C. ramosissima is highly invasive due to its ability to colonize and persist in both forest gaps and land cleared for agriculture. We propose that a highly vulnerable vasculature, coupled with diurnal root pressure and an allometry that allows substantial leaf area to be supported on relatively slender culms, are key traits contributing to the ecological success of C. ramosissima. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-04 |
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/11336/74995 Saha, Sonali; Holbrook, Michell N; Montti, Lia Fernanda; Goldstein, Guillermo Hernan; Knust Cardinot, Gina; Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina; American Society of Plant Biologist; Plant Physiology; 149; 4; 4-2009; 1992-1999 1532-2548 0032-0889 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/74995 |
identifier_str_mv |
Saha, Sonali; Holbrook, Michell N; Montti, Lia Fernanda; Goldstein, Guillermo Hernan; Knust Cardinot, Gina; Water relations of Chusquea ramosissima and Merostachys claussenii in Iguazu National Park, Argentina; American Society of Plant Biologist; Plant Physiology; 149; 4; 4-2009; 1992-1999 1532-2548 0032-0889 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1104/pp.108.129015 info:eu-repo/semantics/altIdentifier/url/http://www.plantphysiol.org/content/149/4/1992 info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2663761/ |
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 |
American Society of Plant Biologist |
publisher.none.fl_str_mv |
American Society of Plant Biologist |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844614423216390144 |
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13.070432 |