Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium Pollution
Cadmium (Cd) pollution in soil is becoming increasingly serious due to anthropogenic activities, which not only poses a threat to the ecological environment, but also causes serious damage to human health via the biological chain. Consequently, special concerns should be paid to develop and combine...
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MDPI AG
2020-07-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/9/7/884 |
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| author | Shi Li Sixiu Le Xin Wang Jiuyuan Bai Rui Wang Yun Zhao |
| author_facet | Shi Li Sixiu Le Xin Wang Jiuyuan Bai Rui Wang Yun Zhao |
| author_sort | Shi Li |
| collection | DOAJ |
| description | Cadmium (Cd) pollution in soil is becoming increasingly serious due to anthropogenic activities, which not only poses a threat to the ecological environment, but also causes serious damage to human health via the biological chain. Consequently, special concerns should be paid to develop and combine multiple remediation strategies. In this study, different subspecies of oilseed rape, <i>Brassica campestris,</i> <i>Brassica napus</i> and <i>Brassica juncea</i> were applied, combined with three organic acids, acetic acid, oxalic acid and citric acid, in a simulated Cd-contaminated soil. Various physiological and biochemical indexes were monitored in both plant seedling, growth period and mature stage. The results showed that organic acids significantly promoted the growth of <i>Brassica campestris</i> and <i>Brassica juncea</i> under Cd stress. The photosynthesis and antioxidant enzyme activities in <i>Brassica campestris</i> and <i>Brassica juncea</i> were induced at seedling stage, while that in <i>Brassica napus</i> were suppressed and disturbed. The enrichment of Cd in oilseed rape was also obviously increased. <i>Brassica juncea</i> contained relatively high resistance and Cd content in plant but little Cd in seed. Among the three acids, oxalic acids exhibited the most efficient promoting effect on the accumulation of Cd by oilseed rape. Here, a comprehensive study on the combined effects of oilseed rape and organic acids on Cd contaminated soil showed that <i>Brassica juncea</i> and oxalic acid possessed the best effect on phytoremediation of Cd contaminated soil. Our study provides an optimal way of co-utilizing oilseed rape and organic acid in phytoremediation of Cd contaminated soil. |
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| language | English |
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| spelling | doaj.art-691a4410ba484143889f25a0c071942c2023-11-20T06:40:35ZengMDPI AGPlants2223-77472020-07-019788410.3390/plants9070884Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium PollutionShi Li0Sixiu Le1Xin Wang2Jiuyuan Bai3Rui Wang4Yun Zhao5Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, ChinaCadmium (Cd) pollution in soil is becoming increasingly serious due to anthropogenic activities, which not only poses a threat to the ecological environment, but also causes serious damage to human health via the biological chain. Consequently, special concerns should be paid to develop and combine multiple remediation strategies. In this study, different subspecies of oilseed rape, <i>Brassica campestris,</i> <i>Brassica napus</i> and <i>Brassica juncea</i> were applied, combined with three organic acids, acetic acid, oxalic acid and citric acid, in a simulated Cd-contaminated soil. Various physiological and biochemical indexes were monitored in both plant seedling, growth period and mature stage. The results showed that organic acids significantly promoted the growth of <i>Brassica campestris</i> and <i>Brassica juncea</i> under Cd stress. The photosynthesis and antioxidant enzyme activities in <i>Brassica campestris</i> and <i>Brassica juncea</i> were induced at seedling stage, while that in <i>Brassica napus</i> were suppressed and disturbed. The enrichment of Cd in oilseed rape was also obviously increased. <i>Brassica juncea</i> contained relatively high resistance and Cd content in plant but little Cd in seed. Among the three acids, oxalic acids exhibited the most efficient promoting effect on the accumulation of Cd by oilseed rape. Here, a comprehensive study on the combined effects of oilseed rape and organic acids on Cd contaminated soil showed that <i>Brassica juncea</i> and oxalic acid possessed the best effect on phytoremediation of Cd contaminated soil. Our study provides an optimal way of co-utilizing oilseed rape and organic acid in phytoremediation of Cd contaminated soil.https://www.mdpi.com/2223-7747/9/7/884antioxidant enzymecadmiumoilseed rapeorganic acidsphytoremediationcombined remediation |
| spellingShingle | Shi Li Sixiu Le Xin Wang Jiuyuan Bai Rui Wang Yun Zhao Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium Pollution Plants antioxidant enzyme cadmium oilseed rape organic acids phytoremediation combined remediation |
| title | Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium Pollution |
| title_full | Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium Pollution |
| title_fullStr | Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium Pollution |
| title_full_unstemmed | Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium Pollution |
| title_short | Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium Pollution |
| title_sort | functional analysis of organic acids on different oilseed rape species in phytoremediation of cadmium pollution |
| topic | antioxidant enzyme cadmium oilseed rape organic acids phytoremediation combined remediation |
| url | https://www.mdpi.com/2223-7747/9/7/884 |
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