Consulta: creatorFacets:"Gomes,Fábio P."
Registros recuperados: 3
Data/hora: 01/06/2024 02:42:50

Some photosynthetic and growth responses of Annona glabra L. seedlings to soil flooding
Provedor de dados: 39
Autores: Mielke,Marcelo S.; Matos,Elyabe M.; Couto,Virginia B.; Almeida,Alex-Alan F. de; Gomes,Fábio P.; Mangabeira,Pedro Antonio Oliveira.
An experiment was conducted with the aim to analyze the effects of soil flooding and leaf position on net primary productivity and whole plant carbon balance of Annona glabra L. (Annonaceae) seedlings, a highly flood-tolerant tree, native to the tropical Americas. All seedlings survived a period of 56 days of flooding without symptoms of stress. Flooding induced significant increments in root, stem and whole-plant biomass (P &lt;0.01), and in the root:shoot mass ratio (P &lt;0.05). Measurements of leaf gas exchange were conducted at days four, 11, 18 and 56 after flooding, on the first (L1), fourth (L4) and seventh (L7) fully expanded leaves from the apex of each seedling. The mean values of stomatal conductance to water vapour (g s) and net photosynthetic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annonaceae; Stomatal conductance; Brazilian Atlantic rainforest; Net photosynthetic rate; Flood tolerance.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062005000400025

Ecophysiology of coconut palm under water stress
Provedor de dados: 61
Autores: Gomes,Fábio P.; Prado,Carlos H.B.A.
Coconut palm is of great social and economic importance for millions of people in the tropics and subtropics. Drought is one of the main environmental factors that limit coconut productivity. In this review, physiological and morphological data are presented in an integrated perspective to provide a holistic view of the behavior of coconut trees facing water deficit under both field and controlled conditions. Great capacity to produce homorhizic roots capable of searching continuously for water and nutrients and high protoplasmic tolerance in leaves allows the coconut tree to endure water deficit. High membrane stability, osmoprotection, osmoregulation and enhanced activity of antioxidant enzymes are characteristics often found in leaves of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocus nucifera; Desiccation tolerance; Leaf gas exchange; Leaf water relations; Net photosynthesis; Osmotic potential; Water potential; Water-use efficiency.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400008

Tolerance and prospection of phytoremediator woody species of Cd, Pb, Cu and Cr
Provedor de dados: 61
Autores: Almeida,Alex-Alan F. de; Valle,Raúl R.; Mielke,Marcelo S.; Gomes,Fábio P.
High concentrations of Cd, Pb, Cu and Cr can cause harmful effects to the environment. These highly toxic pollutants constitute a risk for aquatic and terrestrial life. They are associated with diverse bioavailable geochemical fractions, like the water-soluble fraction and the exchangeable fraction, and non-available fractions like those associated with the crystalline net of clays and silica minerals. Depending upon their chemical and physical properties we can distinguish different mechanisms of metal toxicity in plants, such as production of reactive oxygen species from auto-oxidation, blocking and/or displacement of essential functional groups or metallic ions of biomolecules, changes in the permeability of cellular membranes, reactions of sulphydryl...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Decontamination; Heavy metals; Hyperaccumulation; Phytodegradation; Phytostabilization; Phytotoxicity.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000200001