Based on Table 2, the total accumulation of Nickel (mg/kg) in Catharanthus roseus during the experimental period is shown. The table provides data for different plant parts (leaf, stem, and root) at different time points (20th, 40th, and 60th day) of the experiment.
The "Total Accumulation" column represents the sum of Nickel accumulation in all plant parts for each time point. For example, on the 20th day, the total accumulation of Nickel in Catharanthus roseus is 10.49 mg/kg.
From the table, we can observe that the total accumulation of Nickel increases over time. On the 40th day, the total accumulation is 18.82 mg/kg, and on the 60th day, it further increases to 22.8 mg/kg.
Based on the information provided, the correct answer to the question about the accumulation of lead in Catharanthus roseus during the experimental period would be the option that mentions the specific plant part with the highest total accumulation of lead. In this case, the correct answer would be the "Root" of the Catharanthus roseus plant, which accumulated a total of 67.34 mg/kg of lead over the entire experimental period.
While the study provides valuable insights into the accumulation of heavy metals in plants, there are still unanswered questions concerning the long-term effects of metal accumulation in Catharanthus roseus plants and the transfer of metals to other organisms in the ecosystem. Future studies could focus on expanding the sample size, conducting long-term studies on the plant's efficiency in removing heavy metals, and exploring the ecological implications of using this plant for remediation.
In conclusion, the review of the scientific journal article sheds light on the potential of Catharanthus roseus plants for phytoremediation of heavy metal-contaminated environments. With further research and exploration of optimal conditions for using this plant species, it may offer a sustainable and environmentally friendly solution to mitigate the impact of heavy metal contamination on public health and ecosystems.
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