Assessing Gerbera jamesonii for phytoremediation: lead and zinc uptake, translocation, and impact on plant growth
Issued Date
2026-01-01
Resource Type
ISSN
15226514
eISSN
15497879
Scopus ID
2-s2.0-105031408682
Journal Title
International Journal of Phytoremediation
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SCOPUS
Bibliographic Citation
International Journal of Phytoremediation (2026)
Suggested Citation
Phaenark C., Rattanawiboon K., Sawangproh W. Assessing Gerbera jamesonii for phytoremediation: lead and zinc uptake, translocation, and impact on plant growth. International Journal of Phytoremediation (2026). doi:10.1080/15226514.2026.2636202 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/115590
Title
Assessing Gerbera jamesonii for phytoremediation: lead and zinc uptake, translocation, and impact on plant growth
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Abstract
Heavy metal contamination, particularly from lead (Pb) and zinc (Zn), poses significant ecological and public health concerns. This study evaluated metal uptake, translocation, and tolerance in Gerbera jamesonii through a controlled hydroponic experiment with five Pb and Zn treatments (0, 5, 10, 15, and 30 mg L<sup>−1</sup>), each replicated five times (n = 5), and a greenhouse pot experiment using five soil Pb treatments (S1–S5; 0–15202 mg kg<sup>−1</sup>), each replicated eight times (n = 8), arranged in a completely randomized design. In hydroponics, Pb was largely immobilized in roots, with bioconcentration factors (BCF) > 1 and translocation factors (TF) near zero at all concentrations, confirming minimal root-to-shoot movement and strong phytostabilization potential. Zn showed moderate accumulation in roots and shoots at low concentrations but caused toxicity and complete mortality at 30 mg L<sup>−1</sup>, indicating metal-specific physiological thresholds. In pot experiments, G. jamesonii displayed dose-dependent reductions in shoot and root biomass yet survived and continued accumulating Pb in roots under moderate contamination. Zn concentrations in plant tissues remained stable across soil treatments, suggesting efficient internal regulation. Overall, G. jamesonii effectively immobilizes Pb while exhibiting sensitivity to elevated Zn, supporting its suitability for Pb phytostabilization in contaminated soils, with further research needed to refine field-scale applications.