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Effects of melatonin on cadmium accumulation in the accumulator plant Perilla frutescens.
- Source :
-
Chemistry & Ecology . Jul2019, Vol. 35 Issue 6, p553-562. 10p. - Publication Year :
- 2019
-
Abstract
- To enhance the phytoremediation ability of the heavy metal accumulator Perilla frutescens, melatonin (MT) was applied at different concentrations (0, 25, 50, 100, 150, and 200 μmol/L) to P. frutescens growing in cadmium (Cd) contaminated soil (10 mg/kg). The MT treatments increased the root and shoot biomasses of P. frutescens, with the maximum increase in the 150 μmol/L MT treatment (79.51% and 36.18% higher, respectively, than those of the control). The MT treatments also enhanced superoxide dismutase activity, peroxidase activity, and the soluble protein concentration of P. frutescens, and 100–200 μmol/L MT increased the chlorophyll a, chlorophyll b, and total chlorophyll concentrations in P. frutescens. The MT treatments increased the Cd concentrations in roots and shoots of P. frutescens in a dose-dependent manner. Different MT concentrations increased the Cd accumulation amounts of roots and shoots of P. frutescens, with the maxima accumulation amounts in the 150 μmol/L MT treatment (226.98% and 85.89% higher, respectively, than those of the control). These results show that MT can promote the growth and phytoremediation ability of P. frutescens growing in Cd-contaminated soil, and the optimum MT dose is 150 μmol/L. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02757540
- Volume :
- 35
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Chemistry & Ecology
- Publication Type :
- Academic Journal
- Accession number :
- 136415233
- Full Text :
- https://doi.org/10.1080/02757540.2019.1600683