Artículos de revistas
Growth Of Jackbean In The Presence Of Lead [crescimento De Feijão-de-porco Na Presença De Chumbo]
Registro en:
Bragantia. , v. 67, n. 3, p. 569 - 576, 2008.
68705
2-s2.0-56849109922
Autor
De Almeida E.L.
Marcos F.C.C.
Schiavinato M.A.
Lagoa A.M.M.A.
De Abreu M.F.
Institución
Resumen
Excessive soil metal concentrations may be hazardous for human, animal and plant health. Phytoremediation is a technique based on the use of plants as decontaminator agent and has been increasingly applied with the objective of soil and water remediation in polluted areas. The objective of the present work was to study a leguminous species - jackbean [Canavalia ensiformis (L.)D.C] - as Pbphytoextractor through the evaluation of Pb effects on the plant physiology and root nodulation. The experiment was carried out under natural variation of light and temperature, in pots containing 2 L of sand under greenhouse conditions. Plants were treated with four Pb concentrations (0, 250, 500 and 1000 jimol L -11) in the presence and absence of rhizobium stirp. Jackbean plant development was not affected by Pb treatments and Pb-toxicity symptoms were not observed. However, plants were not able to produce root nodules. Jackbean plants exibited low shoot/root Pb translocation indexes. 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