New Evidence of Semi-Mangrove Plant Barringtonia racemosa in Soil Clean-Up: Tolerance and Absorption of Lead and Cadmium
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Pot Experiment
2.3. Measurements and Analysis
2.3.1. Measurement of Growth Indices
2.3.2. Determination of Superoxide Dismutase and Peroxidase Activity and Quantification of Malondialdehyde and Proline Levels
2.3.3. Photosynthetic Pigments Determination
2.3.4. Determination of Cd and Pb Concentration
2.3.5. Statistical Analysis
3. Results
3.1. Effects of Cd and Pb on Plant Growth
3.2. Effects of Cd and Pb Stress on Physiological Characteristics
3.3. Effects of Cd and Pb Stress on Photosynthetic Pigments
3.4. Effects of Cd and Pb Stress on Enrichment Characteristics
3.4.1. Concentration and Distribution of Cd and Pb in Plants
3.4.2. Cd and Pb Absorption Models
4. Discussion
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Treatments | Cd (mg kg−1) | Treatments | Pb (mg kg−1) | Treatments | Cd + Pb (mg kg−1) |
---|---|---|---|---|---|
Control | 0 | - | 0 | - | 0 + 0 |
Cd1 | 50 | Pb1 | 500 | M1 | 50 + 500 |
Cd2 | 100 | Pb2 | 1000 | M2 | 100 + 1000 |
Cd3 | 150 | Pb3 | 1500 | M3 | 150 + 1500 |
Cd4 | 200 | Pb4 | 2000 | M4 | 200 + 2000 |
Treatment | Cd Concentration Mean ±SD (mg kg−1 DW) (Distribution (%)) | Cd Enrichment Coefficient | Cd Translocation Factors | |||
---|---|---|---|---|---|---|
Root | Stem | Leaf | Total | |||
CK | 0.50 ± 0.01 (74.57) g | 0.00 ± 0.00 (0.00) g | 0.17 ± 0.00 (25.43) c | 0.66 ± 0.01 g | 2.54 ± 0.00 b | 0.35 ± 0.02 a |
Cd1 | 21.21 ± 0.53 (93.43) e | 1.37 ± 0.31 (6.06) a | 0.12 ± 0.00 (0.51) d | 22.70 ± 0.25 e | 2.51 ± 0.03 b | 0.07 ± 0.02 b |
Cd2 | 28.93 ± 2.81 (98.22) d | 0.37 ± 0.01 (1.27) ef | 0.15 ± 0.01 (0.51) c | 29.46 ± 2.82 d | 1.66 ± 0.16 c | 0.02 ± 0.00 ef |
Cd3 | 41.59 ± 0.41 (97.51) c | 0.81 ± 0.00 (1.90) b | 0.25 ± 0.01 (0.59) b | 42.66 ± 0.40 c | 1.41 ± 0.01 c | 0.03 ± 0.00 def |
Cd4 | 98.56 ± 1.10 (98.66) a | 1.26 ± 0.00 (1.26) a | 0.08 ± 0.01 (0.08) e | 99.90 ± 1.10 a | 1.80 ± 0.02 c | 0.01 ± 0.00 f |
M1 | 11.79 ± 0.09 (96.65) f | 0.31 ± 0.02 (2.52) f | 0.10 ± 0.03 (0.83) de | 12.20 ± 0.06 f | 28.58 ± 0.95 a | 0.03 ± 0.00 d |
M2 | 12.04 ± 0.034 (95.23) f | 0.50 ± 0.00 (3.98) de | 0.10 ± 0.01 (0.79) de | 12.64 ± 0.05 f | 1.21 ± 0.01 c | 0.05 ± 0.00 c |
M3 | 27.88 ± 0.07 (97.14) d | 0.70 ± 0.00 (2.44) bc | 0.12 ± 0.02 (0.43) d | 28.71 ± 0.07 d | 1.32 ± 0.00 c | 0.03 ± 0.00 de |
M4 | 54.41 ± 0.02 (97.61) b | 0.62 ± 0.04 (1.11) cd | 0.72 ± 0.00 (1.29) a | 55.74 ± 0.02 b | 1.76 ± 0.01 c | 0.02 ± 0.00 def |
Treatment | Pb Concentration (mg/kg) (Distribution (%)) | Pb Enrichment Coefficient | Pb Translocation Factors | |||
---|---|---|---|---|---|---|
Root | Stem | Leaf | Total | |||
CK | 1.10 ± 0.32 (61.44) g | 0.40 ± 0.17 (21.80) bc | 0.30 ± 0.05 (16.76) de | 1.80 ± 0.52 h | 0.47 ± 0.14 c | 0.63 ± 0.08 a |
Pb1 | 22.78 ± 0.35 (95.20) f | 0.95 ± 0.09 (3.95) a | 0.20 ± 0.07 (0.85) e | 23.93 ± 0.31 g | 0.53 ± 0.01 c | 0.05 ± 0.01 b |
Pb2 | 73.38 ± 0.39 (98.83) d | 0.39 ± 0.11 (0.52) bc | 0.48 ± 0.10 (0.18) bc | 74.25 ± 0.41 e | 0.69 ± 0.01 c | 0.01 ± 0.00 b |
Pb3 | 207.61 ± 11.21 (99.66) a | 0.31 ± 0.09 (0.15) c | 0.38 ± 0.07 (0.18) bcde | 208.31 ± 11.15 a | 1.51 ± 0.08 b | 0.00 ± 0.00 b |
Pb4 | 79.61 ± 2.84 (98.15) d | 0.98 ± 0.04 (1.20) a | 0.53 ± 0.18 (0.65) b | 81.11 ± 2.95 d | 0.40 ± 0.01 c | 0.02 ± 0.00 b |
M1 | 52.42 ± 0.47 (97.65) e | 0.94 ± 0.16 (1.74) a | 0.33 ± 0.07 (0.61) cde | 53.68 ± 0.57 f | 11.63 ± 0.58 a | 0.02± 0.00 b |
M2 | 21.97 ± 0.12 (95.99) f | 0.53 ± 0.04 (2.31) b | 0.39 ± 0.05 (1.70) bcd | 22.89 ± 0.14 g | 0.54 ± 0.00 c | 0.04± 0.00 b |
M3 | 165.87 ± 0.70 (99.44) b | 0.48 ± 0.12 (0.29) bc | 0.45 ± 0.21 (0.27) bc | 166.81 ± 0.88 b | 1.53 ± 0.01 b | 0.01 ± 0.00 b |
M4 | 127.61 ± 0.17 (99.06) c | 0.43 ± 0.13 (0.33) bc | 0.79 ± 0.03 (0.61) a | 128.82 ± 0.09 c | 1.24 ± 0.01 b | 0.01 ± 0.00 b |
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Liang, F.; Hu, J.; Liu, B.; Li, L.; Yang, X.; Bai, C.; Tan, X. New Evidence of Semi-Mangrove Plant Barringtonia racemosa in Soil Clean-Up: Tolerance and Absorption of Lead and Cadmium. Int. J. Environ. Res. Public Health 2022, 19, 12947. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph191912947
Liang F, Hu J, Liu B, Li L, Yang X, Bai C, Tan X. New Evidence of Semi-Mangrove Plant Barringtonia racemosa in Soil Clean-Up: Tolerance and Absorption of Lead and Cadmium. International Journal of Environmental Research and Public Health. 2022; 19(19):12947. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph191912947
Chicago/Turabian StyleLiang, Fang, Ju Hu, Bing Liu, Lin Li, Xiuling Yang, Caihong Bai, and Xiaohui Tan. 2022. "New Evidence of Semi-Mangrove Plant Barringtonia racemosa in Soil Clean-Up: Tolerance and Absorption of Lead and Cadmium" International Journal of Environmental Research and Public Health 19, no. 19: 12947. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph191912947