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Title: Antioxidants in Erica andevalensis: A comparative study between wild plants and cadmium-exposed plants under controlled conditions
Authors: Marquez-Garcia, Belen
Horemans, Nele
Guisez, Yves
Cordoba, Francisco
Issue Date: 2011
Citation: PLANT PHYSIOLOGY AND BIOCHEMISTRY, 49(1). p. 110-115
Abstract: Erica andevalensis is an endemic species from SW Iberian Peninsula, always growing in metal-enriched and acid soils. In the present study, a comparison was made between wild E. andevalensis plants collected from the field and cultivated ones exposed to different cadmium levels (0, 0.5, 5 and 50 mu M). Wild plants contain higher levels of ascorbic acid (around 8000 nmol g(-1) FW) than lab-cultivated control plants (around 3000 nmol g(-1) FW). Glutathione levels follow an opposite trend being smaller in wild plants than lab-cultivated ones. Moreover, the total antioxidant capacity of wild plants is 90 times higher than in cultivated plants non-exposed to cadmium. Cadmium treatment of lab-cultivated plants did not affect the growth of E. andevalensis or the glutathione levels. However, the total antioxidative capacity increased in plants exposed to 50 mu M of cadmium. Cadmium was added to the soil and it was transported into leaves reaching levels of 3.299 +/- 0.781 mu g Cd/g DW in plants exposed to 50 mu M. These results underline a possible importance of antioxidants in the metal tolerance show by the high antioxidant capacity detected in both wild and lab-cultivated plants exposed to high cadmium levels. (C) 2010 Elsevier Masson SAS. All rights reserved.
Notes: [Marquez-Garcia, Belen; Cordoba, Francisco] Univ Huelva, Dept Environm Biol & Publ Hlth, Fac Expt Sci, Huelva 21071, Spain. [Horemans, Nele] Belgian Nucl Res Ctr SCK CEN, B-2400 Mol, Belgium. [Cuypers, Ann] Hasselt Univ, Ctr Environm Sci, B-3590 Diepenbeek, Belgium. [Guisez, Yves] Univ Antwerp, Dept Biol Mol Plant Physiol & Biotechnol, B-2020 Antwerp, Belgium.
URI: http://hdl.handle.net/1942/11828
DOI: 10.1016/j.plaphy.2010.10.007
ISI #: 000286998800016
ISSN: 0981-9428
Category: A1
Type: Journal Contribution
Validation: ecoom, 2012
Appears in Collections: Research publications

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