Assessment of Phytoextraction Potential of Fenugreek (Trigonellafoenum-graecum L.) to Remove Heavy Metals (Pb and Ni) from Contaminated Soil


1 1Department of Environmental Science, Maharaja Ganga Singh University, Bikaner (Rajasthan) - 334004, India

2 ABES Engineering College, Ghaziabad, U.P., India

3 Centre for Rural Development & Technology, Indian Institute of Technology (I.I.T.), New Delhi – 110016, Indi


The objective of the present study was to evaluate the effect of metal mobilizing agents, ethelynediaminetetraacetic acid (EDTA) and salicylic acid (SA), on the accumulation and translocation of lead (Pb) and nickel (Ni) by fenugreek (Trigonellafoenum-graecumL.) plants in contaminated soil. EDTA and SA were amended at 100 mM and 1.0 mM respectively. Pb and Ni content were estimated using ICP-OES. Plant samples were prepared for scanning electron microscope (SEM) analysis to investigate metals distribution in different tissues (root, stem and leaf) of plant. The results showed that EDTA increased Pb and Ni uptake as compared to SA. SEM analysis revealed that in the presence of EDTA, the deposition of Pb particles was predominantly in vascular tissues of the stem and leaf.    


  1. Matlock M.M., Henke K.R., Atwood D.A., 2002. Effectiveness of commercial reagents for heavy metal removal from water with new insights for future chelate designs.J Hazard Material.92, 129-142.
  2. Järup L., 2003. Hazard of heavy metal contamination. Brit Med Bull. 68, 167-182.
  3. Cui Y.S., Wang Q.R., Dong Y.T., Li H.F., Christie P., 2004.Enhanced uptake of soil Pb and Zn by Indian mustard and winter wheat following combined soil application of elemental sulphur and EDTA.Plant Soil.261, 181-188.
  4. Mingorance M.D., Valdés B., Oliva S.R., 2007. Strategies of heavy metal uptake by plants growing under industrial emissions. Environ Int. 33, 514-520.
  5. Zhuang P., Yang Q.W., Wang, H.B., Shu W.S., 2007.Phytoremediation of heavy metals by eight plant species in the field.Water Air Soil Pollut.184, 235-242.
  6. Lee J.H., 2013. An overview of phytoremediation as a potentially promising technology for environmental pollution control.Biotechnol Bioprocess Engg. 18(3), 431-439.
  7. Huang J.W., Chen J.J., Berti W.R., Cunningham S.D., 1997.Phytoremediation of lead-contaminated soils: Role of synthetic chelates in lead phytoextraction. Environ Sci Technol. 31, 800-805.
  8. Shen Z.G., Li Z.D., Wang C.C., Chen H.M., Chua H., 2002. Lead phytoextraction from contaminated soil with high-biomass plant species. J Environ Qual. 31, 1893-1900.
  9. Raskin I., 1992. Role of salicylic acid in plants. Ann Rev Plant PhysiolMol Biol. 43, 439-463.
  10. Mazen A.M.A., 2004. Accumulation of four metals in tissues of Corchorusolitoriusand possible mechanisms of their tolerance.BiolPlanta. 48, 267-272.
  11. Métraux J.P., Signer H., Ryals J., Ward E., Wyss-Benz M., Gaudin J., Raschdorf K., Schmid E., Blum W., Inverardi B., 1990. Increase in salicylic acid at the onset of systemic acquired resistance in cucumber. Science.250, 1004-1006.
  12. Sinha S., Gupta A.K., Bhatt K., 2007.Uptake and translocation of metals in fenugreek grown on soil amended with tannery sludge: Involvement of antioxidants. Ecotoxicol Environ Saf. 67, 267-277.
  13. Dheri G.S., Brar M.S., Malhi S.S., 2007. Comparative phytoremediation of chromium-contaminated soils by Fenugreek, Spinach, and Raya.Commun Soil Sci Plant Anal. 38, 1655-1672.
  14. Parida B.K., Chhibba I.M., Nayyar V.K., 2003. Influence of nickel-contaminated soils on fenugreek (Trigonellacorniculata L.) growth and mineral composition. SciHorticult. 98, 113-119.
  15. Rowell D.L., 1994. Soil Science: Methods and Applications.Longman Scientific and Technical, Harlow (U.K.).
  16. Mishra A., Choudhuri M.A., 1997. Ameliorating effects of salicylic acid on lead and mercury: induced inhibition of germination and early seedling growth of two rice cultivars. Seed Sci Technol. 25, 263-270.
  17. Pugh R.E., DickD.G., Fredeen A.L., 2002. Heavy metal (Pb, Zn, Cd, Fe and Cu) contents of plant foliage near the Anvil Range lead/zinc mine, Faro, Yukon Territory. EcotoxicolSaf. 55, 273-279.
  18. Kataba-Pendias A., Pendias H., 2001. Trace Elements in Soils and Plants.CRC Press, Boca Raton, Florida.
  19. Mari, S., Gendre, D., Pianelli, K., Ouerdane, L., Lobinski, R., Briat, J.F., Lebrun, M., Czernic, P., 2006. Root-to-shoot long-distance circulation of nicotinamine and nicotinamine-nickel chelates in the metal hyperaccumulatorThlaspicaerulescens. J Exp Bot. 57, 4111-4122.
  20. Wycisk E., Kim E., Schroeder J., Kramer U., 2004. Enhancing the first enzymatic step in the histidine biosynthesis pathway increases free histidine pool and nickel tolerance in Arabidopsis thaliana. FEBS Lett.578, 128-134.
  21. Peterson C.A., 1988. Exodermalcasparian bands: their significance for ion uptake by roots.PhysiolPlanta.72, 204-208.
  22. Jentschke G., Eberhard F., Godbold D.L., 1991. Distribution of Pb in mycorrhizal and non-micorrhizal Norway spruce seedlings.PhysiolPlanta. 81, 417-422.
  23. Wozny A.,Krzeslowska M., 1993. Plant cell response to Pb. ActaSoc Bot Polon.62, 101-105