Uniconazole (S-3307) strengthens the growth and cadmium accumulation of accumulator plant Malachium aquaticum |
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Authors: | Jing He Lijin Lin Qianqian Ma Xun Wang Yunsong Lai |
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Institution: | 1. College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China;2. Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China |
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Abstract: | The effects of uniconazole (S-3307) application on the growth and cadmium (Cd) accumulation of accumulator plant Malachium aquaticum (L.) Fries. were studied through a pot experiment. The application of S-3307 increased the biomass and photosynthetic pigment content of M. aquaticum in Cd-contaminated soil, and also improved the superoxide dismutase (SOD) and peroxidase (POD) activities in M. aquaticum. Application of S-3307 increased Cd content in shoots and decreased Cd content in roots of M. aquaticum, but the translocation factor (TF) of M. aquaticum increased with the increase of S-3307 concentration. For phytoextraction, the application of S-3307 increased Cd extractions by roots, shoots and whole plants of M. aquaticum, and the maxima were obtained at 75 mg L?1 S-3307, which increased by 22.07%, 37.79% and 29.07%, respectively, compared with their respective controls. Therefore, S-3307 can be used for enhancing the Cd extraction ability of M. aquaticum, and 75 mg L?1 S-3307 was the optimal dose. |
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Keywords: | Uniconazole (S-3307) Malachium aquaticum cadmium phytoextraction accumulator plant |
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