Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances

Plasticity in hydraulic architecture of five dominant Atlantic forest species differing in light requirements and growth rates was evaluated in saplings grown at different irradiances to determine if hydraulic architecture changes in coordination with photosynthetic capacity. Saplings were grown in...

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Autores principales:	Campanello, Paula Inés, Gatti, María Genoveva, Goldstein, Guillermo Hernan
Publicado:	2008
Materias:	Atlantic forest High-light-requiring trees Hydraulic conductivity Shade-tolerant trees Water-use efficiency canopy growth rate growth regulator hydraulic conductivity irradiance light effect photosynthesis plasticity water uptake water use efficiency Balfourodendron riedelianum Cedrela Cedrela fissilis Cordia Cordia trichotoma Lonchocarpus Patagonula americana
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0829318X_v28_n1_p85_Campanello http://hdl.handle.net/20.500.12110/paper_0829318X_v28_n1_p85_Campanello
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_0829318X_v28_n1_p85_Campanello
record_format	dspace
spelling	paper:paper_0829318X_v28_n1_p85_Campanello2023-06-08T15:46:06Z Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances Campanello, Paula Inés Gatti, María Genoveva Goldstein, Guillermo Hernan Atlantic forest High-light-requiring trees Hydraulic conductivity Shade-tolerant trees Water-use efficiency canopy growth rate growth regulator hydraulic conductivity irradiance light effect photosynthesis plasticity water uptake water use efficiency Balfourodendron riedelianum Cedrela Cedrela fissilis Cordia Cordia trichotoma Lonchocarpus Patagonula americana Plasticity in hydraulic architecture of five dominant Atlantic forest species differing in light requirements and growth rates was evaluated in saplings grown at different irradiances to determine if hydraulic architecture changes in coordination with photosynthetic capacity. Saplings were grown in shade-houses at 10, 30, 45 and 65% of full solar irradiance for 4 months. In four of the five species, maximum relative growth rates were observed at intermediate irradiances (30 and 40% of full sun). Slow-growing species had lower maximum electron transport rates (ETRmax) than fast-growing species. A positive correlation between ETRmax and maximum leaf hydraulic conductivity (KL) was found across species, suggesting that species-specific stem hydraulic capacity and photosynthetic capacity were linked. Species with relatively high growth rates, such as Cedrela fissilis Vell., Patagonula americana L. and Cordia trichotoma (Vell.) Arrab. Ex Stend, exhibited increased KL and specific hydraulic conductivity (K S) with increased growth irradiance. In contrast, KS and KL did not vary with irradiance in the slower-growing and more shade-tolerant species Balfourodendron riedelianum (Engl.) Engl. and Lonchocarpus leucanthus Burkart, despite a relatively large irradiance-induced variation in ETRmax. A correlation between KS and ETR max was observed in fast-growing species in different light regimes, suggesting that they are capable of plastic changes in hydraulic architecture and increased water-transport efficiency in response to changes in light availability resulting from the creation of canopy gaps, which makes them more competitive in gaps and open habitats. © 2008 Heron Publishing. Fil:Campanello, P.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gatti, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Goldstein, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0829318X_v28_n1_p85_Campanello http://hdl.handle.net/20.500.12110/paper_0829318X_v28_n1_p85_Campanello
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Atlantic forest High-light-requiring trees Hydraulic conductivity Shade-tolerant trees Water-use efficiency canopy growth rate growth regulator hydraulic conductivity irradiance light effect photosynthesis plasticity water uptake water use efficiency Balfourodendron riedelianum Cedrela Cedrela fissilis Cordia Cordia trichotoma Lonchocarpus Patagonula americana
spellingShingle	Atlantic forest High-light-requiring trees Hydraulic conductivity Shade-tolerant trees Water-use efficiency canopy growth rate growth regulator hydraulic conductivity irradiance light effect photosynthesis plasticity water uptake water use efficiency Balfourodendron riedelianum Cedrela Cedrela fissilis Cordia Cordia trichotoma Lonchocarpus Patagonula americana Campanello, Paula Inés Gatti, María Genoveva Goldstein, Guillermo Hernan Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances
topic_facet	Atlantic forest High-light-requiring trees Hydraulic conductivity Shade-tolerant trees Water-use efficiency canopy growth rate growth regulator hydraulic conductivity irradiance light effect photosynthesis plasticity water uptake water use efficiency Balfourodendron riedelianum Cedrela Cedrela fissilis Cordia Cordia trichotoma Lonchocarpus Patagonula americana
description	Plasticity in hydraulic architecture of five dominant Atlantic forest species differing in light requirements and growth rates was evaluated in saplings grown at different irradiances to determine if hydraulic architecture changes in coordination with photosynthetic capacity. Saplings were grown in shade-houses at 10, 30, 45 and 65% of full solar irradiance for 4 months. In four of the five species, maximum relative growth rates were observed at intermediate irradiances (30 and 40% of full sun). Slow-growing species had lower maximum electron transport rates (ETRmax) than fast-growing species. A positive correlation between ETRmax and maximum leaf hydraulic conductivity (KL) was found across species, suggesting that species-specific stem hydraulic capacity and photosynthetic capacity were linked. Species with relatively high growth rates, such as Cedrela fissilis Vell., Patagonula americana L. and Cordia trichotoma (Vell.) Arrab. Ex Stend, exhibited increased KL and specific hydraulic conductivity (K S) with increased growth irradiance. In contrast, KS and KL did not vary with irradiance in the slower-growing and more shade-tolerant species Balfourodendron riedelianum (Engl.) Engl. and Lonchocarpus leucanthus Burkart, despite a relatively large irradiance-induced variation in ETRmax. A correlation between KS and ETR max was observed in fast-growing species in different light regimes, suggesting that they are capable of plastic changes in hydraulic architecture and increased water-transport efficiency in response to changes in light availability resulting from the creation of canopy gaps, which makes them more competitive in gaps and open habitats. © 2008 Heron Publishing.
author	Campanello, Paula Inés Gatti, María Genoveva Goldstein, Guillermo Hernan
author_facet	Campanello, Paula Inés Gatti, María Genoveva Goldstein, Guillermo Hernan
author_sort	Campanello, Paula Inés
title	Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances
title_short	Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances
title_full	Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances
title_fullStr	Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances
title_full_unstemmed	Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances
title_sort	coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0829318X_v28_n1_p85_Campanello http://hdl.handle.net/20.500.12110/paper_0829318X_v28_n1_p85_Campanello
work_keys_str_mv	AT campanellopaulaines coordinationbetweenwatertransportefficiencyandphotosyntheticcapacityincanopytreespeciesatdifferentgrowthirradiances AT gattimariagenoveva coordinationbetweenwatertransportefficiencyandphotosyntheticcapacityincanopytreespeciesatdifferentgrowthirradiances AT goldsteinguillermohernan coordinationbetweenwatertransportefficiencyandphotosyntheticcapacityincanopytreespeciesatdifferentgrowthirradiances
_version_	1768545837871267840

Coordination between water-transport efficiency and photosynthetic capacity in canopy tree species at different growth irradiances

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