Cadmium Effects on Mineral Accumulation and Selected Physiological and Biochemical Characters of Salix babylonica L.

Ouyang, Jie; Li, Binbin; Li, Chonghao; Shang, Xiaoshuo

doi:10.15244/pjoes/71554

Cited by 4 publications

(5 citation statements)

References 52 publications

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“…The results showed that MDA content was positively correlated with Cd concentration, indicating that the degree of plant membrane lipid peroxidation deepened with the increase of Cd concentration 37 . This was consistent with the results of Ouyang et al 39 . This study shows that MDA content was significantly affected by lime, oxalic acid, both of lime and oxalic acid.…”

Section: Discussionsupporting

confidence: 94%

Effects of lime and oxalic acid on antioxidant enzymes and active components of Panax notoginseng under cadmium stress

Jiang

Mei

et al. 2022

Sci Rep

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Cadmium (Cd) pollution poses potential safety risks for Panax notoginseng cultivation, a medicinal plant in Yunnan. Under exogenous Cd stress, field experiments were conducted to understand the effects of lime (0, 750, 2250 and 3750 kg hm−2) applied and oxalic acid (0, 0.1 and 0.2 mol L−1) leaves sprayed on Cd accumulation, antioxidant system and medicinal components of P. notoginseng. The results showed that Lime and foliar spray of oxalic acid were able to elevate Ca2+ and alleviate Cd2+ toxicity in P. notoginseng under Cd stress. The addition of lime and oxalic acid increased the activities of antioxidant enzymes and alters osmoregulator metabolism. The most significant increase in CAT activities increased by 2.77 folds. And the highest increase of SOD activities was 1.78 folds under the application of oxalic acid. While MDA content decreased by 58.38%. There were very significant correlation with soluble sugar, free amino acid, proline and soluble protein. Lime and oxalic acid were able to increase calcium ions (Ca2+), decrease Cd content and improve the stress resistance of P. notoginseng, while increasing the production of total saponins and flavonoids. Cd content were the lowest, 68.57% lower than controls, and met the standard value (Cd ≤ 0.5 mg kg−1, GB/T 19086-2008). The proportion of SPN was 7.73%, which reached the highest level of all treatments, the flavonoids content increased significantly by 21.74%, which reached the medicinal standard value and optimal yield.

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Section: Discussionsupporting

confidence: 94%

Effects of lime and oxalic acid on antioxidant enzymes and active components of Panax notoginseng under cadmium stress

Jiang

Mei

et al. 2022

Sci Rep

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“…TF value > 1, that is to say, large amounts of Pb are transported to the shoots from the roots, which differs from other plants, including Allium sativum, Ricinus communis, Brassica juncea, Neyraudia reynaudiana, and some other willow clones, in which, large amounts of Pb ions are accumulated in the roots and small amounts are transported to the shoots after Pb stress [13,14,25,34,35]. Nevertheless, some studies have reported on the use of crop plants and forest plants, including poplar and willows, to remove heavy metals from contaminated soils [22,23,26,[36][37][38][39][40]. Other investigations indicated that hyperaccumulators, plants that accumulate heavy metals from the soil into their shoots, are immensely useful in phytoextraction [23,36].…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, some studies have reported on the use of crop plants and forest plants, including poplar and willows, to remove heavy metals from contaminated soils [22,23,26,[36][37][38][39][40]. Other investigations indicated that hyperaccumulators, plants that accumulate heavy metals from the soil into their shoots, are immensely useful in phytoextraction [23,36]. In this study, S. babylonica is used to evaluate its capability for TF > 1, demonstrating that S. babylonica is considered as a plant with great potential of Pb-accumulation.…”

Section: Discussionmentioning

confidence: 99%

“…The Salicaceae family contains the Salix (willows) and Populus (poplars) genera, which are comprised of several woody species and hybrids. Many of them have accommodated to certain ecological niches, for example the places that are nutrient-poor, dry, wet or contaminated by metal [22,23]. Willows with the characteristics of high biomass, accumulating and translocating heavy metals to shoots easily are considered as excellent phytoremediation species [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

“…S. babylonica is a willow species that grows in a wide range of climatic conditions and is one of the most widely cultivated willow species in China [28]. This species is preferred for the phytoremediation of trace metal-contaminated land due to its easy propagation and cultivation, fast growth, large biomass, and deep root system [23,28]. An early study reported that S. babylonica tolerates and accumulates Pb, suggesting that it has considerable potential for remediating Pb pollution [29].…”

Section: Introductionmentioning

confidence: 99%

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Characterisation of early responses in lead accumulation and localization of Salix babylonica L. roots

2020

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Background: Lead (Pb) is a harmful pollutant that disrupts normal functions from the cell to organ levels. Salix babylonica is characterized by high biomass productivity, high transpiration rates, and species specific Pb. Better understanding the accumulating and transporting Pb capability in shoots and roots of S. babylonica, the toxic effects of Pb and the subcellular distribution of Pb is very important. Results: Pb exerted inhibitory effects on the roots and shoots growth at all Pb concentrations. According to the results utilizing inductively coupled plasma atomic emission spectrometry (ICP-AES), S. babylonica can be considered as a plant with great phytoextraction potentials as translocation factor (TF) value > 1 is observed in all treatment groups throughout the experiment. The Leadmium™ Green AM dye test results indicated that Pb ions initially entered elongation zone cells and accumulated in this area. Then, ions were gradually accumulated in the meristem zone. After 24 h of Pb exposure, Pb accumulated in the meristem zone. The scanning electron microscopy (SEM) and energy-dispersive X-ray analyses (EDXA) results confirmed the fluorescent probe observations and indicated that Pb was localized to the cell wall and cytoplasm. In transverse sections of the mature zone, Pb levels in the cell wall and cytoplasm of epidermal cells was the lowest compared to cortical and vessel cells, and an increasing trend in Pb content was detected in cortical cells from the epidermis to vascular cylinder. Similar results were shown in the Pb content in the cell wall and cytoplasm of the transverse sections of the meristem. Cell damage in the roots exposed to Pb was detected by propidium iodide (PI) staining, which was in agreement with the findings of Pb absorption in different zones of S. babylonica roots under Pb stress. Conclusion: S. babylonica L. is observed as a plant with great potential of Pb-accumulation and Pb-tolerance. The information obtained here of Pb accumulation and localization in S. babylonica roots can furthers our understanding of Pb-induced toxicity and its tolerance mechanisms, which will provide valuable and scientific information to phytoremediation investigations of other woody plants under Pb stress.

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Tree Bark as a Bioindicator of Atmospheric Contamination by Heavy Metals According to Vehicular Traffic Intensity in El Tambo, Huancayo, Peru

Sedano

Valverde

Chiri

et al. 2023

Springer Proceedings in Earth and Environmental Sciences

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Cadmium Effects on Mineral Accumulation and Selected Physiological and Biochemical Characters of Salix babylonica L.

Cited by 4 publications

References 52 publications

Effects of lime and oxalic acid on antioxidant enzymes and active components of Panax notoginseng under cadmium stress

Effects of lime and oxalic acid on antioxidant enzymes and active components of Panax notoginseng under cadmium stress

Characterisation of early responses in lead accumulation and localization of Salix babylonica L. roots

Tree Bark as a Bioindicator of Atmospheric Contamination by Heavy Metals According to Vehicular Traffic Intensity in El Tambo, Huancayo, Peru

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