Growth and leaf production in the tropical palm Euterpe edulis: Light conditions versus developmental constraints
We studied developmental and environmental constraints on leaf dynamics, morphology and physiology in the monopodial tropical palm of the Atlantic Forest biome, Euterpe edulis. Plastic responses to light environments in terms of photosynthesis, leaf size, leaf life span, patterns of biomass allocati...
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2011
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paper:paper_03672530_v206_n8_p742_Gatti2023-06-08T15:36:06Z Growth and leaf production in the tropical palm Euterpe edulis: Light conditions versus developmental constraints Gatti, María Genoveva Campanello, Paula Inés Goldstein, Guillermo Hernan Atlantic Forest Leaf life span Leaf production Light acclimation Ontogeny Palmae biomass allocation biome demography developmental biology ecophysiology electron evergreen tree functional morphology growth rate leaf morphology light effect ontogeny physiological response radiation balance tropical environment understory Atlantic Forest Arecaceae Euterpe edulis We studied developmental and environmental constraints on leaf dynamics, morphology and physiology in the monopodial tropical palm of the Atlantic Forest biome, Euterpe edulis. Plastic responses to light environments in terms of photosynthesis, leaf size, leaf life span, patterns of biomass allocation and growth were analysed. Plants were grown during 14 months in a shade house under four different growth irradiances. Plants of Euterpe edulis were able to adjust leaf demography and biomass allocation in the different light treatments. Leaf life span increased by 100 days with decreasing light levels while the rate of leaf production decreased, consistent with lower electron transport rates. At low light levels, adjustments in biomass allocation to leaf components allowed E. edulis to reduce self-shading and increase light interception. At high light plants allocated more biomass to roots, and the plants exhibited small leaf sizes when leaves were compared using an explicit ontogenetic analysis. Ontogeny constrained the maximum size that each consecutive leaf could achieve, while growth irradiance determined the rate of leaf production and other leaf traits. Consequently, there were both, developmental constraints and environmental determinants influencing leaf demography and morphology in E. edulis. The findings of this ecophysiological and demographic study are relevant to palms growing under natural conditions and help to explain the success of E. edulis in the forest understory and its absence from large gap openings. Our results not only confirm that E. edulis is a shade tolerant species, but also show that palms are able to acclimate to different growing condition as well as trees. © 2011 Elsevier GmbH. 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:Goldstein, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03672530_v206_n8_p742_Gatti http://hdl.handle.net/20.500.12110/paper_03672530_v206_n8_p742_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 |
Atlantic Forest Leaf life span Leaf production Light acclimation Ontogeny Palmae biomass allocation biome demography developmental biology ecophysiology electron evergreen tree functional morphology growth rate leaf morphology light effect ontogeny physiological response radiation balance tropical environment understory Atlantic Forest Arecaceae Euterpe edulis |
| spellingShingle |
Atlantic Forest Leaf life span Leaf production Light acclimation Ontogeny Palmae biomass allocation biome demography developmental biology ecophysiology electron evergreen tree functional morphology growth rate leaf morphology light effect ontogeny physiological response radiation balance tropical environment understory Atlantic Forest Arecaceae Euterpe edulis Gatti, María Genoveva Campanello, Paula Inés Goldstein, Guillermo Hernan Growth and leaf production in the tropical palm Euterpe edulis: Light conditions versus developmental constraints |
| topic_facet |
Atlantic Forest Leaf life span Leaf production Light acclimation Ontogeny Palmae biomass allocation biome demography developmental biology ecophysiology electron evergreen tree functional morphology growth rate leaf morphology light effect ontogeny physiological response radiation balance tropical environment understory Atlantic Forest Arecaceae Euterpe edulis |
| description |
We studied developmental and environmental constraints on leaf dynamics, morphology and physiology in the monopodial tropical palm of the Atlantic Forest biome, Euterpe edulis. Plastic responses to light environments in terms of photosynthesis, leaf size, leaf life span, patterns of biomass allocation and growth were analysed. Plants were grown during 14 months in a shade house under four different growth irradiances. Plants of Euterpe edulis were able to adjust leaf demography and biomass allocation in the different light treatments. Leaf life span increased by 100 days with decreasing light levels while the rate of leaf production decreased, consistent with lower electron transport rates. At low light levels, adjustments in biomass allocation to leaf components allowed E. edulis to reduce self-shading and increase light interception. At high light plants allocated more biomass to roots, and the plants exhibited small leaf sizes when leaves were compared using an explicit ontogenetic analysis. Ontogeny constrained the maximum size that each consecutive leaf could achieve, while growth irradiance determined the rate of leaf production and other leaf traits. Consequently, there were both, developmental constraints and environmental determinants influencing leaf demography and morphology in E. edulis. The findings of this ecophysiological and demographic study are relevant to palms growing under natural conditions and help to explain the success of E. edulis in the forest understory and its absence from large gap openings. Our results not only confirm that E. edulis is a shade tolerant species, but also show that palms are able to acclimate to different growing condition as well as trees. © 2011 Elsevier GmbH. |
| author |
Gatti, María Genoveva Campanello, Paula Inés Goldstein, Guillermo Hernan |
| author_facet |
Gatti, María Genoveva Campanello, Paula Inés Goldstein, Guillermo Hernan |
| author_sort |
Gatti, María Genoveva |
| title |
Growth and leaf production in the tropical palm Euterpe edulis: Light conditions versus developmental constraints |
| title_short |
Growth and leaf production in the tropical palm Euterpe edulis: Light conditions versus developmental constraints |
| title_full |
Growth and leaf production in the tropical palm Euterpe edulis: Light conditions versus developmental constraints |
| title_fullStr |
Growth and leaf production in the tropical palm Euterpe edulis: Light conditions versus developmental constraints |
| title_full_unstemmed |
Growth and leaf production in the tropical palm Euterpe edulis: Light conditions versus developmental constraints |
| title_sort |
growth and leaf production in the tropical palm euterpe edulis: light conditions versus developmental constraints |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03672530_v206_n8_p742_Gatti http://hdl.handle.net/20.500.12110/paper_03672530_v206_n8_p742_Gatti |
| work_keys_str_mv |
AT gattimariagenoveva growthandleafproductioninthetropicalpalmeuterpeedulislightconditionsversusdevelopmentalconstraints AT campanellopaulaines growthandleafproductioninthetropicalpalmeuterpeedulislightconditionsversusdevelopmentalconstraints AT goldsteinguillermohernan growthandleafproductioninthetropicalpalmeuterpeedulislightconditionsversusdevelopmentalconstraints |
| _version_ |
1768543372158435328 |