Metal Accumulation by Jatropha curcas L. Adult Plants Grown on Heavy Metal-Contaminated Soil
Abstract
:1. Introduction
2. Results
2.1. Analysis of Soils at Days 0 and 90
2.2. Analysis of the Plants Grown in NCS and CS at Days 0 and 90
3. Discussion
3.1. Evolution of pH in CS
3.2. Metal Content Reduction in Soils
3.3. Elemental Analysis of Plants
3.4. Translocation and Bioaccumulation Factors
3.5. Potential of J. curcas L. for Phytoremediation.
4. Materials and Methods
4.1. Soil Samples
4.2. Jatropha curcas L. Plants
4.3. Experimental Procedure
4.4. Plant and Soil Analysis
4.4.1. pH
4.4.2. Metal Content
4.4.3. Elemental Analysis
4.5. Translocation (TF) and Bioaccumulation (BAF) Factors
4.6. Statistical Analysis
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Abbreviations
BAF | Bioaccumulation factor |
BAFroot | Bioaccumulation factor in root |
BAFaerial | Bioaccumulation factor in the aerial part of the plant |
CS | Contaminated soil (peat and mining soil mixture) |
ND | Not detected (under the detection limit) |
NCS | Non-contaminated soil (peat moss) |
TF | Translocation factor |
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Soil | Fe | Cr | Cu | Mn | Ni | Pb | Zn | As | Au | Sb |
---|---|---|---|---|---|---|---|---|---|---|
Mine | 31985.1 | 1.29 | 39.8 | 35.9 | ND | 39.2 | 19.7 | 23716.7 | 2.12 | 2.76 |
σ | ± 564.8a | ± 0.34a | ± 6.3a | ± 4.0a | − | ± 12.1a | ± 3.2a | ± 465.3a | ± 0.23 | ± 0.46 |
NCS | 7090.0 | 15.37 | 38.1 | 156.5 | 5.44 | 20.2 | 40.7 | 8.0 | ND | ND |
σ | ± 204.5b | ± 3.21b | ± 3.0a | ± 17.0b | ± 0.98a | ± 7.0b | ± 16.0b | ± 1.3b | − | − |
CS | 8331.2 | 13.41 | 38.7 | 59.6 | 1.14 | 22.6 | 41.5 | 4982.9 | ND | ND |
σ | ± 265.3c | ± 1.42b | ± 4.8a | ± 9.2c | ± 0.36b | ± 7.0b | ± 15.9b | ± 165.9c | − | − |
Metal | Concentration Decrease (%) | |
---|---|---|
NCS | CS | |
Fe | 38a | 29a |
Cr | 54a | 86b |
Cu | 43a | 58b |
Mn | 45a | 16b |
Ni | 28a | 22a |
Pb | 42a | 65b |
Zn | 28a | 20a |
As | NDa | 44b |
Au | ND | ND |
Sb | ND | ND |
Soil | Day | Height (cm) | Stem Diameter (cm) | Branch Diameter (cm) |
---|---|---|---|---|
NCS | 0 | 221.8 ± 33.1a | 27.5 ± 1.3a | 17.3 ± 3.7a |
NCS | 90 | 225.8 ± 22.6a | 26.8 ± 0.5a | 13.0 ± 1.8a |
CS | 0 | 223.6 ± 25.1a | 26.8 ± 1.7a | 12.5 ± 1.3a |
CS | 90 | 220.5 ± 21.1a | 26.8 ± 1.0a | 13.8 ± 3.0a |
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García Martín, J.F.; González Caro, M.d.C.; López Barrera, M.d.C.; Torres García, M.; Barbin, D.; Álvarez Mateos, P. Metal Accumulation by Jatropha curcas L. Adult Plants Grown on Heavy Metal-Contaminated Soil. Plants 2020, 9, 418. https://doi.org/10.3390/plants9040418
García Martín JF, González Caro MdC, López Barrera MdC, Torres García M, Barbin D, Álvarez Mateos P. Metal Accumulation by Jatropha curcas L. Adult Plants Grown on Heavy Metal-Contaminated Soil. Plants. 2020; 9(4):418. https://doi.org/10.3390/plants9040418
Chicago/Turabian StyleGarcía Martín, Juan Francisco, María del Carmen González Caro, María del Carmen López Barrera, Miguel Torres García, Douglas Barbin, and Paloma Álvarez Mateos. 2020. "Metal Accumulation by Jatropha curcas L. Adult Plants Grown on Heavy Metal-Contaminated Soil" Plants 9, no. 4: 418. https://doi.org/10.3390/plants9040418