Bioremediation Potential of Flowering Shrubs Against Soil Cd Pollution: Enrichment Characteristics and Plant Response Mechanisms
Source abstract
Abstract
Cadmium (Cd) ions can significantly affect plant growth and development. They promote plant growth up to a certain concentration, but high concentrations may inhibit normal plant growth. However, Cd pollution also threatens ecosystem security and may pose a potential risk to human health. Bioremediation has received significant attention as a method for reducing soil pollution, including Cd contamination. Therefore, this study evaluated the phytoremediation potential of Bougainvillea spectabilis Willd. (Triangle plum), Hibiscus rosa-sinensis Linn (Safflower), and Cuphea ignea (Cigar flower) in Cd-contaminated soil that simulated the conditions found in mine tailings ponds. The results indicated that there were significant differences in Cd ion accumulation among the three flowering shrubs. Triangle plum had the greatest enrichment ability, followed by Cigar flower and then Safflower. Triangle plum leaves showed the greatest enrichment ability, followed by the stems and roots. In contrast, the Cigar flower roots showed the greatest enrichment ability followed by the leaves and the stems. However, their translocation factor (TF) values were similar. The enrichment effect of Safflower leaves was the strongest, followed by its roots, with relatively little accumulation in its stems, and its TF value varied within a certain range. This study provides a scientific basis for the bioremediation of soil Cd pollution and new information about the abilities of different flowering shrubs and their parts to accumulate Cd.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Plant Stress Responses and Tolerance · Heavy metals in environment · Plant responses to water stress
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Earth Sciences, Yangtze University, Jingzhou 434025, China
School of Civil Engineering, Guilin University of Technology, Guilin 541004, China
Remote Sensing Center of Guangxi, Guilin 541004, China
Funding
National Deep Exploration Program Project “Mineralization Law, Deep Exploration Technology and Experiment of Dachang Ore Field”
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