Data/hora: 01/06/2024 18:26:39

Provedor de dados: | 3
País: | Brazil
Título: | Elevated CO2 concentration improves functional traits and early growth of the widespread species Enterolobium contortisiliquum (Vell.) Morong
Autores: | Melo, Nayara Magry Jesus; Rosa, Rayete Sary-Eldin Gil; Pereira, Eduardo Gusmão; Souza, João Paulo.
Data: | 2018-07-01
Ano: | 2018
Palavras-chave: | Botânica biomass partitioning; Chlorophyll a; Global climate change; Maximum net photosynthesis; Total leaf area.
Resumo: | Enterolobium contortisiliquum is a neotropical widespread species that occurs in native Atlantic Forest, Cerrado and Caatinga vegetation in Brazil. Outside Brazil, it occurs in Argentina, Bolivia, Paraguay, and Uruguay. The objective of this study was to investigate the influence of high carbon dioxide concentration [CO2] on leaf gas exchange, chlorophyll content, chlorophyll a fluorescence, growth, and biomass allocation among roots, stems, and leaves in young plants of E. contortisiliquum. After germination, twenty days old individuals of E. contortisiliquum were grown in open-top chambers (OTC) at two different [CO2] (400 ppm and 700 ppm). Physiological measurements were made when the plants had been grown in OTC for 170, 200, 230, and 260 days. The higher [CO2] favored the early growth of E. contortisiliquum by increasing maximum net photosynthesis (PN) and water use efficiency. Under high [CO2], root dry mass increased in E. contortisiliquum, which might be a trait that will benefit this species by enhancing water uptake, particularly in seasonally dry environments.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39555

10.4025/actascibiolsci.v40i1.39555

Editor: | Universidade Estadual De Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39555/pdf
Formato: | application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; v. 40 (2018): Publicação Contínua; e39555

Acta Scientiarum. Biological Sciences; v. 40 (2018): Publicação Contínua; e39555

1807-863X

1679-9283

Fonte:

Direitos autorais 2018 Acta Scientiarum. Biological Sciences

http://creativecommons.org/licenses/by/4.0