Effect of selenium fertilization on the accumulation of cadmium and lead in rice plants

Hu, Ying; Norton, Gareth J.; Duan, Guilan; Huang, Yuanhe; Liu, Yunxia

doi:10.1007/s11104-014-2189-3

Cited by 116 publications

(46 citation statements)

References 44 publications

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“…This hypothesis is supported by the work of Li et al (2012) who showed that pre-treatment with the Ca 2+ channel blockers LaCl 3 and verapamil significantly reduced Cd 2+ influx into roots. Although selenium would not be expected to compete with Cd for uptake in the same manner as cationic metals, Hu et al (2014) similarly reported reduced uptake (44 %) of Cd by Oryza sativa in the presence of selenium.…”

Section: Competition Between CD and Cations For Uptakementioning

confidence: 97%

Cadmium Bioavailability, Uptake, Toxicity and Detoxification in Soil-Plant System

Shahid

Dumat

Khalid

et al. 2016

Reviews of Environmental Contamination and Toxicology

202

157

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This review summarizes the findings of the most recent studies, published from 2000 to 2016, which focus on the biogeochemical behavior of Cd in soil-plant systems and its impact on the ecosystem. For animals and people not subjected to a Cd-contaminated environment, consumption of Cd contaminated food (vegetables, cereals, pulses and legumes) is the main source of Cd exposure. As Cd does not have any known biological function, and can further cause serious deleterious effects both in plants and mammalian consumers, cycling of Cd within the soil-plant system is of high global relevance.The main source of Cd in soil is that which originates as emissions from various industrial processes. Within soil, Cd occurs in various chemical forms which differ greatly with respect to their lability and phytoavailability. Cadmium has a high phytoaccumulation index because of its low adsorption coefficient and high soil-plant mobility and thereby may enter the food chain. Plant uptake of Cd is believed to occur mainly via roots by specific and non-specific transporters of essential nutrients, as no Cd-specific transporter has yet been identified. Within plants, Cd causes phytotoxicity by decreasing nutrient uptake, inhibiting photosynthesis, plant growth and respiration, inducing lipid peroxidation and altering the antioxidant system and functioning of membranes. Plants tackle Cd toxicity via different defense strategies such as decreased Cd uptake or sequestration into vacuoles. In addition, various antioxidants combat Cd-induced overproduction of ROS. Other mechanisms involve the induction of phytochelatins, glutathione and salicylic acid.

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Section: Competition Between CD and Cations For Uptakementioning

confidence: 97%

Cadmium Bioavailability, Uptake, Toxicity and Detoxification in Soil-Plant System

Shahid

Dumat

Khalid

et al. 2016

Reviews of Environmental Contamination and Toxicology

202

157

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“…The complex is difficult to metabolize or translocate to aerial parts of plants [44]. An antagonism effect was also observed between Cd, Pb, and Se in a pot experiment, where Se application significantly decreased Cd and Pb concentrations in rice tissues [45]. Feng et al [7] discovered that the contents of nutrient elements such as Ca, Mg, K, Fe, Mn, and Cu were all restrained by Se in spite of its beneficial role for plant growth, which is in accordance with this study.…”

Section: Factors Influencing Se Transfer From Soil To Seeds In Ricementioning

confidence: 99%

Influence of Heavy Metals and Nutrient Concentrations on Selenium Geochemical Behavior in Soil-Rice System

Yuan

Song

et al. 2016

Pol. J. Environ. Stud.

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Selenium deficiency in crops has become a subject of growing concern where soil Se concentration is low. The mechanisms of Se translocation in the soil-rice system is very complex and the influence of heavy metal elements and nutrient concentrations on Se translocation in the soil-rice system is unknown. Our study investigated concentrations of Se, heavy metals like Hg, Cd, and Pb, and nutrient elements like Ca, K, P, and S in soils and rice tissues (roots, stems, and grains) in different industrial regions in Jiangsu Province, China. The transfer of Se in the soil-rice system was calculated by transfer coefficients (TC Se ) in this study. The results showed that Se transfer from soil to roots and from stems to grain were key steps for controlled Se concentration in rice grains. The multiple linear regression analysis makes an implication that some elements influence the Se transfer significantly: soil K and Hg may suppress Se entering rice roots; B, Cu, and Mo in rice root may restrain Se transfer from root to stem; and S, Cr, P, and Mg in rice stem had negative effects on Se accumulation in rice grain. Therefore, reducing heavy metal pollution and managing fertilizer amounts may elevate Se concentration in rice grain, especially when Se concentration in soils is low.

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“…Selenium (Se), a nonessential element for plant growth, can also alleviate heavy metal (Cd, Pb, Hg) toxicity to plants possibly through forming Se-metal complexes (Sasakura and T. Suzuki, 1998;Belzile et al, 2006;Fargasova et al, 2006;Hu et al, 2014b). Most studies focus on the role of Se in decreasing translocation and uptake of heavy metals in plants, but little information has been obtained on Se effect on phytoremediation in heavy metals in macrophytes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Brassinosteroid and Selenium on Uptake and Accumulation of Chromium in Yellow Flag (Iris pseudacorus)

Xu¹,

Yu²,

Xie³

et al. 2017

IJAB

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Se (Se(IV) or Se(VI)) for 2 weeks. Then seedlings with or without IP induction (60 mg Fe 2+ L -1 for 3 days) were exposed to 5 mg L -1 hexavalent chromium [Cr(VI)] for 1 week. The results showed that Cr reduced Fe accumulation and uptake by yellow flag with or without IP; however, this effect was significantly neutralized by Br, but not by Se. IP significantly enhanced Cr accumulation in DCB extract and the whole yellow flag seedling, and increased Cr content by 36%. Br24 and Br28 significantly enhanced Cr accumulation and uptake by yellow flag and increased Cr enrichment by 36 and 51% in the absence of IP, and 7 and 21% in the presence of IP, respectively. Se(IV) markedly improved Cr accumulation in the root, but Cr accumulation and uptake in the shoot and DCB extract were not affected by Se(IV) and Se(VI). Our study suggests that Br24 and Br28 can alleviate Fe loss caused by Cr stress and increase Cr accumulation and uptake by yellow flag seedlings.

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Effect of selenium fertilization on the accumulation of cadmium and lead in rice plants

Cited by 116 publications

References 44 publications

Cadmium Bioavailability, Uptake, Toxicity and Detoxification in Soil-Plant System

Cadmium Bioavailability, Uptake, Toxicity and Detoxification in Soil-Plant System

Influence of Heavy Metals and Nutrient Concentrations on Selenium Geochemical Behavior in Soil-Rice System

Effect of Brassinosteroid and Selenium on Uptake and Accumulation of Chromium in Yellow Flag (Iris pseudacorus)

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