Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina

Frost resistance and subzero temperature effects on photosynthesis, survival and distribution were studied in Euterpe edulis, a tree palm species of the Atlantic Forest, near the southern limit of the species distribution. E. edulis grows under the forest canopy and is absent from forest stands loca...

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Autores principales:	Gatti, María Genoveva, Campanello, Paula Inés, Montti, Lía Fernanda, Goldstein, Guillermo Hernan
Publicado:	2008
Materias:	Freezing injury Non-timber forest product Palmito Plant distribution Supercooling capacity Topography Forestry Frost effects Frost resistance Gradient methods Health Landforms Photosynthesis Quantum yield Soil moisture Sun Thermoanalysis Underwater soils (1 1 0) surface (Liquid + liquid) equilibrium Absolute minimum Ambient humidity Argentina atlantic forest Dew formation Elsevier (CO) Environmental factors Extracellular Forest canopies Forest species forest stands Forest structures Freezing temperatures High elevations ice formations Low temperature (LTR) Normal values Soil water potential (SWP) Spatial distribution patterns Species distributions Temperature effects Winter seasons Temperature environmental factor evergreen tree frost hardiness injury photosynthesis spatial distribution survival temperature effect temperature gradient topographic effect Climates Freezing Frost Resistance Growth Ice Moisture Palms Phases Quantum Chemistry Saplings Soil Supercooling Tropics Atlantic Forest South America Euterpe edulis
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03781127_v256_n4_p633_Gatti http://hdl.handle.net/20.500.12110/paper_03781127_v256_n4_p633_Gatti
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03781127_v256_n4_p633_Gatti
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spelling	paper:paper_03781127_v256_n4_p633_Gatti2023-06-08T15:39:19Z Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina Gatti, María Genoveva Campanello, Paula Inés Montti, Lía Fernanda Goldstein, Guillermo Hernan Freezing injury Non-timber forest product Palmito Plant distribution Supercooling capacity Topography Forestry Frost effects Frost resistance Gradient methods Health Landforms Photosynthesis Quantum yield Soil moisture Sun Thermoanalysis Underwater soils (1 1 0) surface (Liquid + liquid) equilibrium Absolute minimum Ambient humidity Argentina atlantic forest Dew formation Elsevier (CO) Environmental factors Extracellular Forest canopies Forest species forest stands Forest structures Freezing temperatures High elevations ice formations Low temperature (LTR) Normal values Soil water potential (SWP) Spatial distribution patterns Species distributions Temperature effects Winter seasons Temperature environmental factor evergreen tree frost hardiness injury photosynthesis spatial distribution survival temperature effect temperature gradient topographic effect Climates Freezing Frost Resistance Growth Ice Moisture Palms Phases Photosynthesis Quantum Chemistry Saplings Soil Supercooling Topography Tropics Argentina Atlantic Forest South America Euterpe edulis Frost resistance and subzero temperature effects on photosynthesis, survival and distribution were studied in Euterpe edulis, a tree palm species of the Atlantic Forest, near the southern limit of the species distribution. E. edulis grows under the forest canopy and is absent from forest stands located near bottom valleys. This palm species has been commercially exploited for palm hearts, making it the most important non-timber forest species in North-Eastern Argentina. Its distribution was studied in relation to the frequency and intensity of subzero temperatures along a topographic gradient. E. edulis abundance was higher at the highest site and decreased or became absent towards the lowest site. Subzero temperatures during each of three winter seasons were observed in the lowest site. The medium and high elevation sites never experienced absolute minimum temperatures below 0 °C. Forest structure, fraction of solar radiation transmitted through the canopy and soil water potentials did not change substantially along the gradient. After a low temperature period in winter, the maximum quantum yield in E. edulis leaflets was relatively low in individuals at the low elevation site while having normal values at the medium and high elevation sites. Thermal analysis indicated that E. edulis saplings can supercool down to about -10 °C and do not tolerate extracellular ice formation. Ice formation was observed at about -4 °C, relatively close to the equilibrium freezing temperature, only after an increase in ambient humidity resulted in dew formation on the plant surface. Dew formation is commonly observed in valleys during the winter season. This observation gives further support to the hypothesis that strong infrequent frost events could be an important environmental factor determining the spatial distribution pattern of E. edulis in the Atlantic Forest of Argentina. © 2008 Elsevier B.V. All rights reserved. Fil:Gatti, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Campanello, P.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Montti, L.F. 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_03781127_v256_n4_p633_Gatti http://hdl.handle.net/20.500.12110/paper_03781127_v256_n4_p633_Gatti
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Freezing injury Non-timber forest product Palmito Plant distribution Supercooling capacity Topography Forestry Frost effects Frost resistance Gradient methods Health Landforms Photosynthesis Quantum yield Soil moisture Sun Thermoanalysis Underwater soils (1 1 0) surface (Liquid + liquid) equilibrium Absolute minimum Ambient humidity Argentina atlantic forest Dew formation Elsevier (CO) Environmental factors Extracellular Forest canopies Forest species forest stands Forest structures Freezing temperatures High elevations ice formations Low temperature (LTR) Normal values Soil water potential (SWP) Spatial distribution patterns Species distributions Temperature effects Winter seasons Temperature environmental factor evergreen tree frost hardiness injury photosynthesis spatial distribution survival temperature effect temperature gradient topographic effect Climates Freezing Frost Resistance Growth Ice Moisture Palms Phases Photosynthesis Quantum Chemistry Saplings Soil Supercooling Topography Tropics Argentina Atlantic Forest South America Euterpe edulis
spellingShingle	Freezing injury Non-timber forest product Palmito Plant distribution Supercooling capacity Topography Forestry Frost effects Frost resistance Gradient methods Health Landforms Photosynthesis Quantum yield Soil moisture Sun Thermoanalysis Underwater soils (1 1 0) surface (Liquid + liquid) equilibrium Absolute minimum Ambient humidity Argentina atlantic forest Dew formation Elsevier (CO) Environmental factors Extracellular Forest canopies Forest species forest stands Forest structures Freezing temperatures High elevations ice formations Low temperature (LTR) Normal values Soil water potential (SWP) Spatial distribution patterns Species distributions Temperature effects Winter seasons Temperature environmental factor evergreen tree frost hardiness injury photosynthesis spatial distribution survival temperature effect temperature gradient topographic effect Climates Freezing Frost Resistance Growth Ice Moisture Palms Phases Photosynthesis Quantum Chemistry Saplings Soil Supercooling Topography Tropics Argentina Atlantic Forest South America Euterpe edulis Gatti, María Genoveva Campanello, Paula Inés Montti, Lía Fernanda Goldstein, Guillermo Hernan Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina
topic_facet	Freezing injury Non-timber forest product Palmito Plant distribution Supercooling capacity Topography Forestry Frost effects Frost resistance Gradient methods Health Landforms Photosynthesis Quantum yield Soil moisture Sun Thermoanalysis Underwater soils (1 1 0) surface (Liquid + liquid) equilibrium Absolute minimum Ambient humidity Argentina atlantic forest Dew formation Elsevier (CO) Environmental factors Extracellular Forest canopies Forest species forest stands Forest structures Freezing temperatures High elevations ice formations Low temperature (LTR) Normal values Soil water potential (SWP) Spatial distribution patterns Species distributions Temperature effects Winter seasons Temperature environmental factor evergreen tree frost hardiness injury photosynthesis spatial distribution survival temperature effect temperature gradient topographic effect Climates Freezing Frost Resistance Growth Ice Moisture Palms Phases Photosynthesis Quantum Chemistry Saplings Soil Supercooling Topography Tropics Argentina Atlantic Forest South America Euterpe edulis
description	Frost resistance and subzero temperature effects on photosynthesis, survival and distribution were studied in Euterpe edulis, a tree palm species of the Atlantic Forest, near the southern limit of the species distribution. E. edulis grows under the forest canopy and is absent from forest stands located near bottom valleys. This palm species has been commercially exploited for palm hearts, making it the most important non-timber forest species in North-Eastern Argentina. Its distribution was studied in relation to the frequency and intensity of subzero temperatures along a topographic gradient. E. edulis abundance was higher at the highest site and decreased or became absent towards the lowest site. Subzero temperatures during each of three winter seasons were observed in the lowest site. The medium and high elevation sites never experienced absolute minimum temperatures below 0 °C. Forest structure, fraction of solar radiation transmitted through the canopy and soil water potentials did not change substantially along the gradient. After a low temperature period in winter, the maximum quantum yield in E. edulis leaflets was relatively low in individuals at the low elevation site while having normal values at the medium and high elevation sites. Thermal analysis indicated that E. edulis saplings can supercool down to about -10 °C and do not tolerate extracellular ice formation. Ice formation was observed at about -4 °C, relatively close to the equilibrium freezing temperature, only after an increase in ambient humidity resulted in dew formation on the plant surface. Dew formation is commonly observed in valleys during the winter season. This observation gives further support to the hypothesis that strong infrequent frost events could be an important environmental factor determining the spatial distribution pattern of E. edulis in the Atlantic Forest of Argentina. © 2008 Elsevier B.V. All rights reserved.
author	Gatti, María Genoveva Campanello, Paula Inés Montti, Lía Fernanda Goldstein, Guillermo Hernan
author_facet	Gatti, María Genoveva Campanello, Paula Inés Montti, Lía Fernanda Goldstein, Guillermo Hernan
author_sort	Gatti, María Genoveva
title	Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina
title_short	Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina
title_full	Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina
title_fullStr	Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina
title_full_unstemmed	Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina
title_sort	frost resistance in the tropical palm euterpe edulis and its pattern of distribution in the atlantic forest of argentina
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03781127_v256_n4_p633_Gatti http://hdl.handle.net/20.500.12110/paper_03781127_v256_n4_p633_Gatti
work_keys_str_mv	AT gattimariagenoveva frostresistanceinthetropicalpalmeuterpeedulisanditspatternofdistributionintheatlanticforestofargentina AT campanellopaulaines frostresistanceinthetropicalpalmeuterpeedulisanditspatternofdistributionintheatlanticforestofargentina AT monttiliafernanda frostresistanceinthetropicalpalmeuterpeedulisanditspatternofdistributionintheatlanticforestofargentina AT goldsteinguillermohernan frostresistanceinthetropicalpalmeuterpeedulisanditspatternofdistributionintheatlanticforestofargentina
_version_	1768544321744666624

Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina

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