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Strategies of two tropical woody species to tolerate salt stress PFB - Pesquisa Florestal Brasileira
Lustosa, Bruno Melo; Souza, Lígia Gomes Ferreira; Frosi, Gabriella; Falcão, Hiram Marinho; Pereira, Silvia; Oliveira, Marciel Teixeira; Santos, Mauro Guida.
This study aimed to evaluate the leaf primary metabolism in two woody species, Sterculia foetida and Bombacopsis glabra. Both species have seeds rich in oil and they are largely found in regions with irregularities in water availability. Seedlings were grown in a greenhouse from seeds. At 140 days after emergence, 50% of the plants were subjected to salt stress for 23 days, daily receiving 100 mM of NaCl solution. In both species, leaf stomata conductance and water potential decreased quickly under salt stress. The two species showed different strategies in photosynthetic pigment concentration and components of nitrogen metabolism. S. foetida kept the pigment concentration unchanged after 23 days of stress, while B. glabra increased concentration of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Botany; Plant Ecophysiology Biochemical analysis; Leaf gas exchange; Leaf water potential Análises bioquímicas; Trocas gasosas foliares; Potencial hídrico foliar.
Ano: 2017 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332
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