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ORIGINAL RESEARCH article
Front. Environ. Sci.
Sec. Toxicology, Pollution and the Environment
Volume 13 - 2025 | doi: 10.3389/fenvs.2025.1535294
This article is part of the Research Topic Agro-Environmental Nutrient Management Rooted in Nature-Based Solutions View all articles
Physiological Response Mechanism and Stress Resistance Characteristics of Four Garden Plants under Heavy Metal Stress
Provisionally accepted- 1 Henan Polytechnic, Zhengzhou, China
- 2 College of Biology and the Environment, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
To better explore the resistance of garden plants to heavy metals and to achieve the ecological remediation of garden plants in heavy metal contaminated soils, the study analyzed their resistance under heavy metals and combined with ameliorated soils for experimental design. The soil and plant analyzer development values of rhododendrons and heather were reduced by more than 15% when treated with heavy metals, and the malondialdehyde of gardenia was increased by 6.42% on Zinc (Zn). The gardenia plant had significant Zn and Cadmium (Cd) accumulation ability, the enrichment coefficient of rhododendron root system under Copper (Cu) was 6.38, and the transfer coefficient of Cu metal of weigela was about 2.0. Compared with the control, the difference of proline content of rhododendron and gardenia under the treatment of the improved soil was more than 9 times. Meanwhile, the reduction trend of Pb, Zn, and Cu in the cultivated soil of cuckoo with diethylenetriaminepentaacetic acid applied was 28% higher than that of the blank control, which indicated that gardenia had a better effect of diethylenetriaminepentaacetic acid-Cu applied. The research results show that the physiological response and accumulation of garden plants to heavy metals demonstrate their tolerance to heavy metals, and the addition of stabilizers in heavy metal contaminated soil is feasible. This research content can promote the excavation of garden plants with high tolerance potential, and has reference technical value for the restoration of ecological landscapes in mining areas.
Keywords: Garden plants, enrichment factor, ecological restoration, SPAD, MDA, Proline
Received: 27 Nov 2024; Accepted: 26 Mar 2025.
Copyright: © 2025 Li, Lu, Zhang and Yu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Yuanchun Yu, College of Biology and the Environment, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
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