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Fungal inoculation and elevated CO2 mediate growth of Lolium mutiforum and Phytolacca americana, metal uptake, and metal bioavailability in metal-contaminated soil: evidence from DGT measurement.
Int J Phytoremediation. 2013; 15(3):268-82.IJ

Abstract

Fungal inoculation and elevated CO2 may mediate plant growth and uptake of heavy metals, but little evidence from Diffusive Gradients in Thin-films (DGT) measurement has been obtained to characterize the process. Lolium mutiforum and Phytolacca americana were grown at ambient and elevated CO2 on naturally Cd and Pb contaminated soils inoculated with and without Trichoderma asperellum strain C3 or Penicillium chrysogenum strain D4, to investigate plant growth, metal uptake, and metal bioavailability responses. Fungal inoculation increased plant biomass and shoot/root Cd and Pb concentrations. Elevated CO2 significantly increased plants biomass, but decreased Cd and Pb concentrations in shoot/root to various extents, leading to a metal dilution phenomenon. Total Cd and Pb uptake by plants, and DGT-measured Cd and Pb concentrations in rhizosphere soils, were higher in all fungal inoculation and elevated CO2 treatments than control treatments, with the combined treatments having more influence than either treatment alone. Metal dilution phenomenon occurred because the increase in DGT-measured bioavailable metal pools in plant rhizosphere due to elevated CO2 was unable to match the increase in requirement for plant uptake of metals due to plant biomass increase.

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Authors+Show Affiliations

Song N
Centre for Research in Ecotoxicology and Environmental Remediation, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, P. R. China.
Wang F
No affiliation info available
Zhang C
No affiliation info available
Tang S
No affiliation info available
Guo J
No affiliation info available
Ju X
No affiliation info available
Smith DL
No affiliation info available

MeSH

Agricultural InoculantsBase SequenceBiodegradation, EnvironmentalBiological AvailabilityBiomassCadmiumCarbon DioxideDNA, RibosomalLeadLoliumMetals, HeavyMolecular Sequence DataPenicillium chrysogenumPhytolacca americanaPlant RootsPlant ShootsSequence Analysis, DNASoilSoil PollutantsTrichoderma

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23488012

Citation

Song, Ningning, et al. "Fungal Inoculation and Elevated CO2 Mediate Growth of Lolium Mutiforum and Phytolacca Americana, Metal Uptake, and Metal Bioavailability in Metal-contaminated Soil: Evidence From DGT Measurement." International Journal of Phytoremediation, vol. 15, no. 3, 2013, pp. 268-82.
Song N, Wang F, Zhang C, et al. Fungal inoculation and elevated CO2 mediate growth of Lolium mutiforum and Phytolacca americana, metal uptake, and metal bioavailability in metal-contaminated soil: evidence from DGT measurement. Int J Phytoremediation. 2013;15(3):268-82.
Song, N., Wang, F., Zhang, C., Tang, S., Guo, J., Ju, X., & Smith, D. L. (2013). Fungal inoculation and elevated CO2 mediate growth of Lolium mutiforum and Phytolacca americana, metal uptake, and metal bioavailability in metal-contaminated soil: evidence from DGT measurement. International Journal of Phytoremediation, 15(3), 268-82.
Song N, et al. Fungal Inoculation and Elevated CO2 Mediate Growth of Lolium Mutiforum and Phytolacca Americana, Metal Uptake, and Metal Bioavailability in Metal-contaminated Soil: Evidence From DGT Measurement. Int J Phytoremediation. 2013;15(3):268-82. PubMed PMID: 23488012.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fungal inoculation and elevated CO2 mediate growth of Lolium mutiforum and Phytolacca americana, metal uptake, and metal bioavailability in metal-contaminated soil: evidence from DGT measurement. AU - Song,Ningning, AU - Wang,Fangli, AU - Zhang,Changbo, AU - Tang,Shirong, AU - Guo,Junkang, AU - Ju,Xuehai, AU - Smith,Donald L, PY - 2013/3/16/entrez PY - 2013/3/16/pubmed PY - 2013/6/7/medline SP - 268 EP - 82 JF - International journal of phytoremediation JO - Int J Phytoremediation VL - 15 IS - 3 N2 - Fungal inoculation and elevated CO2 may mediate plant growth and uptake of heavy metals, but little evidence from Diffusive Gradients in Thin-films (DGT) measurement has been obtained to characterize the process. Lolium mutiforum and Phytolacca americana were grown at ambient and elevated CO2 on naturally Cd and Pb contaminated soils inoculated with and without Trichoderma asperellum strain C3 or Penicillium chrysogenum strain D4, to investigate plant growth, metal uptake, and metal bioavailability responses. Fungal inoculation increased plant biomass and shoot/root Cd and Pb concentrations. Elevated CO2 significantly increased plants biomass, but decreased Cd and Pb concentrations in shoot/root to various extents, leading to a metal dilution phenomenon. Total Cd and Pb uptake by plants, and DGT-measured Cd and Pb concentrations in rhizosphere soils, were higher in all fungal inoculation and elevated CO2 treatments than control treatments, with the combined treatments having more influence than either treatment alone. Metal dilution phenomenon occurred because the increase in DGT-measured bioavailable metal pools in plant rhizosphere due to elevated CO2 was unable to match the increase in requirement for plant uptake of metals due to plant biomass increase. SN - 1522-6514 UR - https://www.unboundmedicine.com/medline/citation/23488012/Fungal_inoculation_and_elevated_CO2_mediate_growth_of_Lolium_mutiforum_and_Phytolacca_americana_metal_uptake_and_metal_bioavailability_in_metal_contaminated_soil:_evidence_from_DGT_measurement_ L2 - https://www.tandfonline.com/doi/full/10.1080/15226514.2012.694500 DB - PRIME DP - Unbound Medicine ER -
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