Field evaluation of cultural cycles for improved cadmium and zinc phytoextraction with Noccaea caerulescens
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Background and aims
Adequate cultural cycles for phytoextraction with Noccaea caerulescens have never been investigated, whereas they directly influence biomass production. The aim of this study was to investigate the effects of the season of establishment, the seeding strategy (sowing vs transplantation) and the length of the growing season on biomass production and metal accumulation of N. caerulescens.
A field trial was conducted on an urban wasteland contaminated with trace metals. Two populations with contrasted natural life cycles, one Cd-accumulating metallicolous (Ganges, GAN) and one non-metallicolous from Luxemburg (LUX), were compared in 6 cultural cycles.
Direct sowing in the fall yielded satisfying metal uptake (260 g Cd ha−1 with GAN and 25 kg Zn ha−1 with LUX), though lower than those obtained with transplantation (320 g Cd ha−1 with GAN and 45 kg Zn ha−1 with LUX) due to less biomass production (1.6 vs 3.2 t ha−1). Extending the growing period from 6 to 12 months was mostly beneficial for biennial LUX plants (with 3 times higher Zn uptake), than for annual GAN plants (with 1.5 times higher Cd uptake).
The natural variation in life cycles – annual or biennial – of N. caerulescens should be taken into account when selecting cultivars for phytoextraction.
KeywordsGrowth cycles Hyperaccumulation Life cycles Phytoremediation Trace metals
A.J. is a research fellow of the Fonds pour la formation à la Recherche dans l’Industrie et dans l’Agriculture (FRIA, Belgium). The authors gratefully acknowledge the Contrat de Quartier Durable Bockstael for site access, and the Centre d’Ecologie Urbaine for project coordination and help in the field. We are also grateful to Alexandre Van Baekel and Kristel Wart for their technical help in laboratory analyses, field work and seed production.
- Dubois S (2005) Etude d’un réseau de populations métallicoles et non-métallicoles de Thlaspi caerulescens (Brassicaceae). Structure génétique, démographie et pressions de sélection. PhD thesis, Université Montpellier II – Sciences et Techniques du Languedoc, Montpellier, FranceGoogle Scholar
- Hammer D, Keller C (2003) Phytoextraction of Cd and Zn with Thlaspi caerulescens in field trials. Soil Use Manag 19:144–149Google Scholar
- Jacobs A, De Brabandere L, Drouet T, Sterckeman T, Noret N (2018) Phytoextraction of Cd and Zn with Noccaea caerulescens for urban soil remediation: influence of nitrogen fertilization and planting density. Ecol Eng 116:178–187Google Scholar
- Jiménez-Ambriz G, Petit C, Bourrié I, Dubois S, Olivieri I, Ronce O (2007) Life history variation in the heavy metal tolerant plant Thlaspi caerulescens growing in a network of contaminated and noncontaminated sites in southern France: role of gene flow, selection and phenotypic plasticity. New Phytol 173:199–215CrossRefPubMedGoogle Scholar
- Li J-T, Baker AJM, Ye Z-H, Wang H-B, Shu W-S (2012) Phytoextraction of Cd-contaminated soils: current status and future challenges. Crit Rev Environ Sci Technol 42:2113–2152Google Scholar
- Lovy L (2012) Hyperaccumulation du cadmium par Noccaea caerulescens : cinétique, répartition et prédiction. PhD thesis, Université de Lorraine, FranceGoogle Scholar
- Lovy L, Latt D, Sterckeman T (2013) Cadmium uptake and partitioning in the hyperaccumulator Noccaea caerulescens exposed to constant Cd concentrations throughout complete growth cycles. Plant Soil 362:345–354Google Scholar
- McGrath SP, Lombi E, Gray CW, Caille N, Dunham SJ, Zhao FJ (2006) Field evaluation of Cd and Zn phytoextraction potential by the hyperaccumulators Thlaspi caerulescens and Arabidopsis halleri. Environ Pollut 141:115–125Google Scholar
- R Development Core Team (2014) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria Google Scholar
- Schwartz C, Guimont S, Saison C, Perronnet K, Morel J-L (2001) Phytoextraction of Cd and Zn by the hyperaccumulator plant Thlaspi caerulescens as affected by plant size and origin. S Afr J Sci 97:561–564Google Scholar
- Sirguey C, Schwartz C, Morel J-L (2006) Response of Thlaspi caerulescens to nitrogen. Phosphorus and Sulfur Fertilisation Int J Phytoremediation 8:149–161Google Scholar
- Tlustoš P, Břendová K, Száková J, Najmanová J, Koubová K (2016) The long-term variation of Cd and Zn hyperaccumulation by Noccaea spp and Arabidopsis halleri plants in both pot and field conditions. Int J Phytoremediation 18:110–115Google Scholar