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Abstract Detail


Heavy Metals and Phytoremediation

Berrah El Kheir, Safae [1], Bouabdli, Abdelhak [2], Saidi, Nadia [2], Berthomieu, Pierre [3].

Behavior of Thlaspi caerulescens metallicolous and non-metallicolous growing in mine soils of the North West of Morocco: Effects of soil factors and Plant metal concentration.

This study tackles screen plants growing on contaminated soil to determine their potential for metal accumulation. A non-metallicolous (NM) ecotype of Thlaspi caerulescens and a metallicolous (M) ecotype are compared for growth and Pb, Cd and Zn accumulation in shoot and root in a pot experiment in six metal contaminated soils and one normal soil. The growth of individuals from normal soil was greater than that of individuals from metal-contaminated soils. Both ecotypes had similar growth on all substrates, they differed in several points. The NM populations had markedly higher root: shoot ratio compared to M populations. The results thus indicate both ecotypes of T.caerulescens are highly tolerant of zinc and Cd. Ecotype NM has constitutively higher Zn uptake capacity than M and grew less well than ecotype M. We conclude that populations of T. caerulescens from both normal and metal-contaminated soils are interesting material for phytoremediation of zinc and cadmium.


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1 - ibn Tofail University, Geology, Géologie dynamique et appliquée laboratory, Faculté des sciences, BP 133, Kenitra, 14000, Morocco
2 - ibn Tofail University, Geology
3 - Montpellier SupAgro, Biochimie et de Physiologie Moléculaires des plantes

Keywords:
Phytoremediation
Thlaspi caerulescens
metallicolous
non-metallicolous.

Presentation Type: Plant Biology Abstract
Session: P
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM
Number: P05022
Abstract ID:1845


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