Assessment of Koelreuteria paniculata Seedling for Phytroremediation of Pyrene-Contaminated Soils

Liu, Tingwei; Zhu, Fan; Yan, Wende; Huang, Xingguo; Wang, Renjie; Wang, Xuxu; Kang, Hui; Yi, Xuankai

doi:10.1007/s11270-018-4044-2

Cited by 3 publications

(2 citation statements)

References 38 publications

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“…[ 35 ], and Poplar [ 36 ] have been proven to be effective in tailings remediation. As a widely distributed, fast-growing tree species in most provinces of southern China [ 37 ], K. paniculata is used for landscaping, energy, timber, and as industrial material. It provides nutrients to the soil and encourages the growth of other plants [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

Lead Responses and Tolerance Mechanisms of Koelreuteria paniculata: A Newly Potential Plant for Sustainable Phytoremediation of Pb-Contaminated Soil

Xie

Yao

et al. 2022

IJERPH

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Phytoremediation could be an alternative strategy for lead (Pb) contamination. K. paniculata has been reported as a newly potential plant for sustainable phytoremediation of Pb-contaminated soil. Physiological indexes, enrichment accumulation characteristics, Pb subcellular distribution and microstructure of K. paniculata were carefully studied at different levels of Pb stress (0–1200 mg/L). The results showed that plant growth increased up to 123.8% and 112.7%, relative to the control group when Pb stress was 200 mg/L and 400 mg/L, respectively. However, the average height and biomass of K. paniculata decrease when the Pb stress continues to increase. In all treatment groups, the accumulation of Pb in plant organs showed a trend of root > stem > leaf, and Pb accumulation reached 81.31%~86.69% in the root. Chlorophyll content and chlorophyll a/b showed a rising trend and then fell with increasing Pb stress. Catalase (CAT) and peroxidase (POD) activity showed a positive trend followed by a negative decline, while superoxide dismutase (SOD) activity significantly increased with increasing levels of Pb exposure stress. Transmission electron microscopy (TEM) showed that Pb accumulates in the inactive metabolic regions (cell walls and vesicles) in roots and stems, which may be the main mechanism for plants to reduce Pb biotoxicity. Fourier transform infrared spectroscopy (FTIR) showed that Pb stress increased the content of intracellular -OH and -COOH functional groups. Through organic acids, polysaccharides, proteins and other compounds bound to Pb, the adaptation and tolerance of K. paniculata to Pb were enhanced. K. paniculata showed good phytoremediation potential and has broad application prospects for heavy metal-contaminated soil.

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Section: Introductionmentioning

confidence: 99%

Lead Responses and Tolerance Mechanisms of Koelreuteria paniculata: A Newly Potential Plant for Sustainable Phytoremediation of Pb-Contaminated Soil

Xie

Yao

et al. 2022

IJERPH

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“…,Willd (Kang et al 2018), Poplar (He et al 2013), have been proven effective in tailings remediation. As a widely distributed fast-growing tree species in most provinces of southern China (Liu et al 2018). K. paniculate is used for landscaping, energy, timber and industrial materials.…”

Section: Introductionmentioning

confidence: 99%

Responses and tolerance mechanisms of K. paniculate seedlings under lead stress: physiological indicators, morphological distribution, enrichment effects and microstructure

Chen

Xie

et al. 2022

Preprint

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Phytoremediation could be an alternative strategy for lead (Pb) contamination, The physiological mechanisms of plant resistance to Pd contamination are of less concern. In this study, Different concentrations of Pb solutions were added to explore the growth of Koelreuteria paniculate (Sapindaceae). physiology and microstructure of K. paniculate were determined. The results showed that plant growth increased up to 123.8% and 112.7% relative to the control group when the lead concentration was 200 and 400 mg/L. In all treatments, most of the Pb accumulation reached 81.31%-86.69% in the roots and slightly lower concentrations in the above-ground leaves than in the stems. Transmission electron microscopy (TEM) showed that Pb accumulates in the inactive metabolic parts (cell walls and vesicles) in roots and stems, which may be the main mechanism for plants to reduce Pb biotoxicity. In addition, by Fourier transform infrared spectroscopy (FTIR), Pb stress increased the content of intracellular -OH and -COOH functional groups, including compounds such as organic acids, polysaccharides and proteins that bind to Pb, attenuating the toxicity to plants and enhancing their adaptation and tolerance to heavy metals.

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Effect of plants and their root exudate on bacterial activities during rhizobacterium–plant remediation of phenol from water

Jin

Wang

Liu

et al. 2019

Environment International

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Assessment of Koelreuteria paniculata Seedling for Phytroremediation of Pyrene-Contaminated Soils

Cited by 3 publications

References 38 publications

Lead Responses and Tolerance Mechanisms of Koelreuteria paniculata: A Newly Potential Plant for Sustainable Phytoremediation of Pb-Contaminated Soil

Lead Responses and Tolerance Mechanisms of Koelreuteria paniculata: A Newly Potential Plant for Sustainable Phytoremediation of Pb-Contaminated Soil

Responses and tolerance mechanisms of K. paniculate seedlings under lead stress: physiological indicators, morphological distribution, enrichment effects and microstructure

Effect of plants and their root exudate on bacterial activities during rhizobacterium–plant remediation of phenol from water

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