Intercropping of Sonchus asper and Vicia faba affects plant cadmium accumulation and root responses

Zu, Yanqun; Li, Qin; Zhan, Fangdong; Wu, Jiong; Li, Yuan; Chen, Jianjun; Wang, Jixiu; Hu, Wenyou

doi:10.1016/s1002-0160(17)60484-3

Cited by 32 publications

(12 citation statements)

References 20 publications

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“…Growth stimulation has also been observed in other systems, such as the intercropping of oilseed rape with Sedum alfredii [ 43 ], Sonchus asper (L.) Hill with Vicia faba Linn. [ 44 ], and Sedum alfredii with Zea mays Linn. [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

Intercropping of Euonymus japonicus with Photinia × fraseri Improves Phytoremediation Efficiency in Cd/Cu/Zn Contaminated Field

Qiu¹,

Liu²,

Lin³

et al. 2022

Biology

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Intercropping plants for phytoremediation is a promising strategy in heavy metal-polluted soils. In this study, two typical greening plant species, Euonymus japonicus (E. japonicus) and Photinia × fraseri (P. × fraseri), were intercropped in a Cd/Cu/Zn-contaminated field. The phytoremediation efficiency was investigated by measuring the plant biomass, metal concentration, and mycorrhizal colonisation, as well as the effects on soil properties, including soil pH; soil total N; and available N, P, K, Cd, Cu, and Zn. The results showed that, compared with the monoculture system, intercropping significantly lowered the available Cd, Cu, and Zn contents, significantly improved the total and available N contents in rhizosphere soils of both plant species, and increased the hyphae colonisation rate of P. × fraseri. In both plants, intercropping significantly improved the total plant biomass. Furthermore, the concentrations Zn and Cd in the root of E. japonicus and Cu concentration in the root of P. × fraseri were enhanced by 58.16%, 107.74%, and 20.57%, respectively. Intercropping resulted in plants accumulating higher amounts of Cd, Cu, and Zn. This was particularly evident in the total amount of Cd in E. japonicus, which was 2.2 times greater than that in the monoculture system. Therefore, this study provides a feasible technique for improving phytoremediation efficiency using greening plants.

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Section: Discussionmentioning

confidence: 99%

Intercropping of Euonymus japonicus with Photinia × fraseri Improves Phytoremediation Efficiency in Cd/Cu/Zn Contaminated Field

Qiu¹,

Liu²,

Lin³

et al. 2022

Biology

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“…arietinum L. is a leguminous plant that can vary the organic components in the soil. For instance, Zu et al (2020) characterized the activity of Cd and the fractionation of DOM in the intercropping of S. asper and V. faba, and determined that intercropped V. faba secreted more citric, oxalic, acetic, and malic acid compared with the S. asper monoculture, because the intercropped nitrogen xer can enhance nutrient bioavailability in the shoots of neighboring crops, promote ecological functions, and consequently alter the rhizosphere environments and root-excreted organic acid composition and proportions. This result agrees with the ndings of the present experiment in that the intercropping system varied the content and composition, especially the hydrophilic and acid fractions, in the rhizosphere soil more than in the two monocultures.…”

Section: In Uences Of Dom Content and Fractionations On CD Activationmentioning

confidence: 99%

“…Intercropping, which can improve the utilization e ciency of light, nutrients, space, and ecological niche, has been used by farmers for more than 20 centuries in China (Zeng et al, 2019a). Previous studies have reported that when vegetable crops such as Solanum melongena, Vitis vinifera, and Vicia faba are intercropped with a speci c hyperaccumulator, interlacing of the root systems not only stimulates the decontamination of metal-polluted soil but also decreases the absorption of pollutants by the vegetables (De Conti et al, 2019;Tang et al, 2017;Zu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Hyperaccumulators can change the chemical forms of heavy metals in soils by varying the soil pH, dissolved organic matter (DOM) content, and microstructure (Zu et al, 2020), but only hyperaccumulate speci c metal species. Therefore, some mobilized non-hyperaccumulated metals may be absorbed by intercropped agricultural products.…”

Section: Introductionmentioning

confidence: 99%

“…The DOM concentration and fractionation were examined in this study, because DOM, which can enhance metal bioavailability by generating metal-DOM complexes or releasing metal ions from soil particles with competing adsorption points, was changed signi cantly in the intercropping system (Zu et al, 2020). In addition, hyperaccumulators tend to acidify soils (Gonzaga et al, 2009; Martínez-Alcalá et al, 2016), and Christensen and Christensen (2000) reported that the chemical forms of metals are primarily controlled by the DOM characteristics when the soil pH is higher than 5.5.…”

Section: Introductionmentioning

confidence: 99%

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Intercropping Sedum Alfredii and Cicer Arietinum L. Does Not Present a Suitable Land Use Pattern For Multi-Metal-Polluted Soil

Niu

Jia

Sun

et al. 2021

Preprint

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Background and aims Intercropping of hyperaccumulators with commercial crops is widely accepted in single-metal-polluted farmland. However, the ecological risks of non-hyperaccumulated metals in intercropping systems have not been revealed. Methods To evaluate Pb and Cu activation and absorption in an intercropped system of Sedum alfredii and Cicer arietinum L., sequential extraction and dissolved organic matter (DOM) characterization were used to describe the migration of metals in the intercropping system. Results This study found that the concentrations of DOM in the S. alfredii monoculture and intercropping system were significantly higher than those in the C. arietinum L. monoculture, and DOM from the former two cultivation strategies had significantly higher Cd, Pb, and Cu extraction capacity than those from the latter. Compared with the C. arietinum L. monoculture, C. arietinum L. intercropping had significantly lower Cd content owing to the depletion of Cd by S. alfredii. However, Cu and Pb concentrations in the former were significantly higher than those in the latter because S. alfredii mobilized these metals but did not hyperaccumulate them. Conclusion The results indicated that intercropping efficiently decreased the potential risk of Cd, but deteriorated the ecological risk of Pb and Cu. Therefore, intercropping does not present a suitable land-use pattern for multi-metal-polluted soil.

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Accumulation and Transfer of Cadmium Isotope (112Cd) by Sonchus asper Intercropped with Vicia faba and Implications for Phytoremediation

Tao

et al. 2021

Bull Environ Contam Toxicol

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Intercropping of Sonchus asper and Vicia faba affects plant cadmium accumulation and root responses

Cited by 32 publications

References 20 publications

Intercropping of Euonymus japonicus with Photinia × fraseri Improves Phytoremediation Efficiency in Cd/Cu/Zn Contaminated Field

Intercropping of Euonymus japonicus with Photinia × fraseri Improves Phytoremediation Efficiency in Cd/Cu/Zn Contaminated Field

Intercropping Sedum Alfredii and Cicer Arietinum L. Does Not Present a Suitable Land Use Pattern For Multi-Metal-Polluted Soil

Accumulation and Transfer of Cadmium Isotope (112Cd) by Sonchus asper Intercropped with Vicia faba and Implications for Phytoremediation

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