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	Provedor de dados Acta Botanica (3) Autor Rosa,Bruno Luan (3) Pereira,Eduardo Gusmão (2) Souza,João Paulo (2) Bicalho,Elisa Monteze (1) Halfeld,Alessandro Dias (1) Melo,Nayara Magry Jesus (1) Rios,Camilla Oliveira (1) Souza,Anna Elisa de (1) Vieira,Kamilla I. C. (1) Mais... Palavra-chave Climate change (2) Acrocomia aculeata (1) Biomass allocation (1) Biometry (1) Burning (1) Leaf gas exchange (1) Palm (1) Photosynthesis (1) Sap flow (1) Seed viability (1) Specific leaf area (1) Water economy (1) Water stress (1) Water use efficiency (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2019 (2) 2016 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Do the structures of macaw palm fruit protect seeds in a fire-prone environment? Acta Botanica Bicalho,Elisa Monteze; Rosa,Bruno Luan; Souza,Anna Elisa de; Rios,Camilla Oliveira; Pereira,Eduardo Gusmão. ABSTRACT Fire is an abiotic disturbance that regulates vegetation structure and biodiversity. Some plant species have adapted to fire prone environments by evolving protective structures. Acrocomia aculeata (macaw palm) is widely distributed throughout tropical America, and is found in environments continuously influenced by anthropogenic fire. We aimed to determine whether the fruit characteristics of A. aculeata enable seeds to resist the effects of fire and also the consequent effects of fire on fruit biometric traits and embryo viability. After a fire event in a region of pasture-forest transition, we marked 30 individuals of A. aculeata. The trees were separated by UPGMA analysis into 5 groups according to fire exposure, ranging from trees with no... Tipo: Info:eu-repo/semantics/article Palavras-chave: Acrocomia aculeata; Biometry; Burning; Climate change; Seed viability. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400540 Elevated atmospheric CO2 concentration improves water use efficiency and growth of a widespread Cerrado tree species even under soil water deficit Acta Botanica Souza,João Paulo; Melo,Nayara Magry Jesus; Halfeld,Alessandro Dias; Vieira,Kamilla I. C.; Rosa,Bruno Luan. ABSTRACT Changes in atmospheric CO2 levels are accompanied by ecological interactions involving other environmental factors, such as drought, which can severely alter the water balance of plants, thereby influencing sap flow, gas exchange, and plant growth. The objective of this study was to evaluate the water use economy, leaf gas exchange, and growth of young plants of the species Lafoensia pacari subjected to high concentrations of atmospheric CO2 ([CO2]) and soil water deficit. Increased vapor pressure deficit was observed from 1200 to 1800 hours. Plants under elevated [CO2] exhibited increased leaf photosynthesis, resulting in improved growth. Specific leaf area was lower in plants under high [CO2], mainly after soil water deficit treatment. Daily... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass allocation; Leaf gas exchange; Sap flow; Specific leaf area; Water economy. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000300425 Increased atmospheric CO2 changes the photosynthetic responses of Acrocomia aculeata (Arecaceae) to drought Acta Botanica Rosa,Bruno Luan; Souza,João Paulo; Pereira,Eduardo Gusmão. ABSTRACT Water availability is the main factor that explains current patterns of palm abundance. However, the interaction between water stress and increasing atmospheric CO2 concentrations caused by climatic change and its effects on palm physiology remain poorly known. Macauba palm is a widespread Neotropical species commonly found in ecosystems subjected to seasonal drought and has potential use in oil production. The present work investigated the influence of increased CO2 concentrations on photosynthetic responses to drought in macauba palm plants. Exposure to increased CO2 concentrations led to up-regulation of photosynthesis through higher stomatal conductance and improved light and water use efficiency. Macauba palm plants under water stress,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Climate change; Photosynthesis; Palm; Water stress; Water use efficiency. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000300486 Registros recuperados: 3 Primeira ... 1 ... Última

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