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Phytoremediation Potential of Maize ( Zea mays L.). A Review
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wuana, Raymond A. Okieimen, Felix E. |
| Copyright Year | 2010 |
| Abstract | In most developing parts of the world, the rapid expansion of industrial areas leading to un controlled processing and utilization of industrial products, agricultura l inputs, vehicular emissions and improper disposal of liquid and solid wastes may cause soil to become contaminated with chemical hazards such as heavy metals. Heavy metal contamination of soil may pose risks to humans and the ecosystem through direct ingestion or contact with contaminated soil, the food chain (soil-plant- human or soil-plant-animal-human), drinking contaminated ground water, reduction in food quality (safe ty and marketability) via phytotoxicity, reduction in land usability for agri cultural production causing food insecurity and lan d tenure problems. Low-cost and ecologically sustainable strategies are needed to restore heavy metal-contaminated soils. Phytoext raction is considered a cost- effective and publicly appealing remediation strate gy that uses plants, associated microbiota and amen dments to remove the heavy metals from the soil. A plant for this purpos e needs be heavy-metal tolerant, grow rapidly with a high biomass yield per hectare, have high metal accumulating ability in th e foliar parts, have a profuse root system, and a h igh bioaccumulation factor. Over 400 taxa of plant hyperaccumulators of heavy metals have been identified, but most of them are lo w biomass producers and exotic species. There's need to supplement the list of plants available for phytoextraction. Maize ( Zea mays L.) is a widely grown staple cereal with promising attributes of a heavy metal accumulator. The potential use of this robust tropical crop in phytoextraction technology is advocated especially for developing countries with scarce funds availabl e for environmental restoration. |
| Starting Page | 275 |
| Ending Page | 287 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| Volume Number | 6 |
| Alternate Webpage(s) | http://www.asopah.org/journals/ajga/ajga6/ajga641110136.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
