Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study
Maize is an economic crop that is also a candidate for use in phytoremediation in low-to-moderately Cd-contaminated soils, because the plant can accumulate high concentration of Cd in parts that are nonedible to humans while accumulating only a low concentration of Cd in the fruit. Maize cultivars C...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Bioinorganic Chemistry and Applications |
| Online Access: | http://dx.doi.org/10.1155/2013/959764 |
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| author | Wending Xu Guining Lu Zhi Dang Changjun Liao Qiangpei Chen Xiaoyun Yi |
| author_facet | Wending Xu Guining Lu Zhi Dang Changjun Liao Qiangpei Chen Xiaoyun Yi |
| author_sort | Wending Xu |
| collection | DOAJ |
| description | Maize is an economic crop that is also a candidate for use in phytoremediation in low-to-moderately Cd-contaminated soils, because the plant can accumulate high concentration of Cd in parts that are nonedible to humans while accumulating only a low concentration of Cd in the fruit. Maize cultivars CT38 and HZ were planted in field soils contaminated with Cd and nitrilotriacetic acid (NTA) was used to enhance the phytoextractive effect of the maize. Different organs of the plant were analyzed to identify the Cd sinks in the maize. A distinction was made between leaf sheath tissue and leaf lamina tissue. Cd concentrations decreased in the tissues in the following order: sheath > root > lamina > stem > fruit. The addition of NTA increased the amount of Cd absorbed but left the relative distribution of the metal among the plant organs essentially unchanged. The Cd in the fruit of maize was below the Chinese government’s permitted concentration in coarse cereals. Therefore, this study shows that it is possible to conduct maize phytoremediation of Cd-contaminated soil while, at the same time, harvesting a crop, for subsequent consumption. |
| format | Article |
| id | doaj-art-c3ae70f63c174f91b997d9ebbb13a40b |
| institution | Kabale University |
| issn | 1565-3633 1687-479X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Bioinorganic Chemistry and Applications |
| spelling | doaj-art-c3ae70f63c174f91b997d9ebbb13a40b2025-02-03T06:06:15ZengWileyBioinorganic Chemistry and Applications1565-36331687-479X2013-01-01201310.1155/2013/959764959764Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale StudyWending Xu0Guining Lu1Zhi Dang2Changjun Liao3Qiangpei Chen4Xiaoyun Yi5School of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaSchool of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaSchool of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaSchool of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaSchool of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaSchool of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaMaize is an economic crop that is also a candidate for use in phytoremediation in low-to-moderately Cd-contaminated soils, because the plant can accumulate high concentration of Cd in parts that are nonedible to humans while accumulating only a low concentration of Cd in the fruit. Maize cultivars CT38 and HZ were planted in field soils contaminated with Cd and nitrilotriacetic acid (NTA) was used to enhance the phytoextractive effect of the maize. Different organs of the plant were analyzed to identify the Cd sinks in the maize. A distinction was made between leaf sheath tissue and leaf lamina tissue. Cd concentrations decreased in the tissues in the following order: sheath > root > lamina > stem > fruit. The addition of NTA increased the amount of Cd absorbed but left the relative distribution of the metal among the plant organs essentially unchanged. The Cd in the fruit of maize was below the Chinese government’s permitted concentration in coarse cereals. Therefore, this study shows that it is possible to conduct maize phytoremediation of Cd-contaminated soil while, at the same time, harvesting a crop, for subsequent consumption.http://dx.doi.org/10.1155/2013/959764 |
| spellingShingle | Wending Xu Guining Lu Zhi Dang Changjun Liao Qiangpei Chen Xiaoyun Yi Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study Bioinorganic Chemistry and Applications |
| title | Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study |
| title_full | Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study |
| title_fullStr | Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study |
| title_full_unstemmed | Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study |
| title_short | Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study |
| title_sort | uptake and distribution of cd in sweet maize grown on contaminated soils a field scale study |
| url | http://dx.doi.org/10.1155/2013/959764 |
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