Enrichment of cadmium in rice (Oryza sativa L.) grown under different exogenous pollution sources

Zhou, Yimin; Si-si, Long; Li, Bingyu; Huang, Ya-Yuan; Li, Yongjie; Yu, Jiayan; Du, Huihui; Khan, Sardar; Lei, Ming

doi:10.1007/s11356-020-10282-5

Cited by 29 publications

(7 citation statements)

References 49 publications

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“…Accumulation of Cd in rhizomes increased over 3-fold after foliar Cd application ( Figure 1 ), indicating that eventual contamination of soil by Cd was sufficiently absorbed by roots (because soil Cd amount remained unaffected, Supplementary Table S1 ). Unlike our data where Cd accumulation from foliar spray was negligible, foliar application of Cd (mimicking 1.5–6.5 mg Cd/kg of the dust) led to 22–74 µg Cd/kg DW of rice leaves [ 19 ], which is ca. 10-times more than we observed.…”

Section: Resultscontrasting

confidence: 85%

Metabolic and Oxidative Changes in the Fern Adiantum raddianum upon Foliar Application of Metals

Kováčik

Husáková

Babula

et al. 2022

IJMS

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Cadmium (Cd) or nickel (Ni) were applied as a foliar spray (1 µM solution over one month) to mimic air pollution and to monitor metabolic responses and oxidative stress in the pteridophyte species. Exogenous metals did not affect the metal content of the soil and had relatively little effect on the essential elements in leaves or rhizomes. The amounts of Cd and Ni were similar in treated leaves (7.2 µg Cd or 5.3 µg Ni/g DW in mature leaves compared with 0.4 µg Cd or 1.2 µg Ni/g DW in the respective control leaves), but Ni was more abundant in rhizomes (56.6 µg Ni or 3.4 µg Cd/g DW), resulting in a higher Cd translocation and bioaccumulation factor. The theoretical calculation revealed that ca. 4% of Cd and 5.5% of Ni from the applied solution per plant/pot was absorbed. Excess Cd induced stronger ROS production followed by changes in SOD and CAT activities, whereas nitric oxide (NO) stimulation was less intense, as detected by confocal microscopy. The hadrocentric vascular bundles in the petioles also showed higher ROS and NO signals under metal excess. This may be a sign of increased ROS formation, and high correlations were observed. Proteins and amino acids were stimulated by Cd or Ni application in individual organs, whereas phenols and flavonols were almost unaffected. The data suggest that even low levels of exogenous metals induce an oxidative imbalance, although no visible damage is observed, and that the responses of ferns to metals are similar to those of seed plants or algae.

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Section: Resultscontrasting

confidence: 85%

Metabolic and Oxidative Changes in the Fern Adiantum raddianum upon Foliar Application of Metals

Kováčik

Husáková

Babula

et al. 2022

IJMS

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“…In order to fully explore the response of marigold to different intensities of Cd stress, seven concentrations of Cd solution were set: 7.5, 15, 30, 75, 150, 225 and 300 mg•kg −1 , denoted L7.5 to L300. The method for Cd addition was as follows: dissolving the required quantity of CdCl 2 •2.5H 2 O was dissolved in 100 mL distilled water, which was evenly watered into the corresponding plastic basin [18]. The seeped solution was rewatered on the surface of the soil until the Cd 2+ was evenly mixed with the soil.…”

Section: Experimental Designmentioning

confidence: 99%

Changes in Metal Distribution, Vegetative Growth, Reactive Oxygen and Nutrient Absorption of Tagetes patula under Soil Cadmium Stress

Shi

Wang²,

Chen

et al. 2022

Horticulturae

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Phytoremediation with hyperaccumulator plants has been recognized as a potential way for the clearing of cadmium (Cd)-contaminated soil. In this study, hyperaccumulator Tagetes patula was treated with seven concentrations of Cd, ranging from 0 to 300 mg kg−1. The Cd enrichment and nutrient contents in different organs during different growth phases were investigated. Under Cd concentrations ≤75 mg kg-1, the morphological growth of T. patula did not change significantly regardless of growth stage. However, when Cd concentration exceeded 150 mg kg−1, the morphological growth was remarkedly inhibited. The root/shoot ratio remained unchanged except for at 300 mg kg−1. In addition, Cd negatively influenced the flowering process at the concentration of 300 mg kg−1. Cd content increased significantly in Cd-treated plants. Nitrogen absorption was increased under Cd treatments, and phosphorus content was also increased under concentration ≤150 mg·kg−1. However, the potassium content in the flower was decreased under 300 mg kg−1. Furthermore, the contents of H2O2, O2− and malondialdehyde were increased during the seedling phase, especially when Cd concentration was ≥150 mg kg−1. In summary, T. patula showed a strong ability to tolerate Cd, and such ability might be explained by nutrient absorption and reactive oxygen clearness.

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“…Wu et al, 2016). Different Cd pollution sources result in varying amounts of Cd enrichment in different rice organs (Y. M. Zhou et al, 2020). Cadmium that comes from soil and irrigation water is mostly enriched in rice roots, whereas Cd sourced from atmospheric deposition is primarily enriched in rice leaves.…”

Section: Introductionmentioning

confidence: 99%

“…The major regulators of these four processes include heavy metal ATPases, low‐affinity cation transporters, low Cd proteins, zinc‐regulated transporter proteins, iron‐regulated transporter proteins, and natural resistance‐associated macrophage proteins (Abedi & Mojiri, 2020; D. Wu et al., 2016). Different Cd pollution sources result in varying amounts of Cd enrichment in different rice organs (Y. M. Zhou et al., 2020). Cadmium that comes from soil and irrigation water is mostly enriched in rice roots, whereas Cd sourced from atmospheric deposition is primarily enriched in rice leaves.…”

Section: Introductionmentioning

confidence: 99%

Mitigation strategies for excessive cadmium in rice

Song

Wang

et al. 2023

Comp Rev Food Sci Food Safe

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Cadmium (Cd)‐contaminated rice is a human food safety problem that lacks a clear solution. A large amount of rice having an excessive Cd content is processed yearly, but it cannot be discarded and placed in landfills because it will cause secondary pollution. How do we best cope with this toxic rice? From the perspectives of food safety, food waste prevention, and human hunger eradication, the use of contemporary physical, chemical, and biological techniques to lower the Cd content in postharvest Cd‐contaminated rice so that it can be used safely is the best course of action. In this review, the contamination, chemical speciation, and distribution of Cd in rice are analyzed and discussed, as are the methods of Cd removal from rice, including a comparison of the advantages and disadvantages of various techniques. Owing to the limitations of current technology, research and technological development recommendations for removing Cd from rice grain are presented. The chemical and biological methods produce higher Cd‐removal rates than physical methods. However, they are limited to small‐scale laboratory applications and cannot be applied on a large industrial scale. For the efficient safe removal of Cd from food, mixed fermentation with lactic acid bacteria and yeast has good application prospects. However, limited strains having high Cd‐removal rates have been screened. In addition, modern biotechnology has rarely been applied to reduce rice Cd levels. Therefore, applying genetic engineering techniques to rapidly obtain microorganisms with high Cd‐removal rates in rice should be the focus of future research.

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Enrichment of cadmium in rice (Oryza sativa L.) grown under different exogenous pollution sources

Cited by 29 publications

References 49 publications

Metabolic and Oxidative Changes in the Fern Adiantum raddianum upon Foliar Application of Metals

Metabolic and Oxidative Changes in the Fern Adiantum raddianum upon Foliar Application of Metals

Changes in Metal Distribution, Vegetative Growth, Reactive Oxygen and Nutrient Absorption of Tagetes patula under Soil Cadmium Stress

Mitigation strategies for excessive cadmium in rice

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