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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/9999

Title: Effect of Copper on Antioxidant Enzyme Activities and Mineral Nutrition of White Lupin Plants Grown in Nutrient Solution
Authors: Mourato, Miguel P.
Martins, Luisa Louro
CUYPERS, Ann
Issue Date: 2009
Publisher: TAYLOR & FRANCIS INC
Citation: JOURNAL OF PLANT NUTRITION, 32(11). p. 1882-1900
Abstract: We analyzed the effect of different copper (Cu) concentrations (0.10, 0.15, 0.20 and 0.35 mM) and time (1 day to 9 days) on several growth and biochemical parameters of roots and shoots of white lupin plants (Lupinus albus cv Estoril) grown in nutrient solution. A significant decrease in leaf fresh weight and leaf area was detected. Copper accumulated in the roots, and an impairment of nutrient translocation was only observed after six days at the highest Cu concentrations applied. A transient increase in the activity of polyphenoloxidase (EC 1.10.3.1) enforces a role for lignification as a defense strategy under enhanced Cu levels. The activities of several antioxidative enzymes were enhanced after Cu application. Our results indicate that Lupinus albus cv 'Estoril' is a rather resistant plant that can cope with moderate concentrations of copper, mostly by controlling up to a certain point, the uptake of excessive amounts of this metal.
Notes: [Mourato, Miguel P.; Martins, Luisa Louro] Univ Tecn Lisbon, Dept Quim Agr & Ambiental, Inst Super Agron, P-1349017 Lisbon, Portugal. [Cuypers, Ann] Hasselt Univ, Ctr Environm Sci, Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/9999
DOI: 10.1080/01904160903242375
ISI #: 000270454000006
ISSN: 0190-4167
Category: A1
Type: Journal Contribution
Validation: ecoom, 2010
Appears in Collections: Research publications

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