Effect of some light rare earth elements on seed germination, seedling growth and antioxidant metabolism in Triticum durum

D’Aquino, L.; Pinto, Maria Concetta de; Nardi, Luca; Morgana, Massimo; Tommasi, Franca

doi:10.1016/j.chemosphere.2009.01.026

Cited by 141 publications

(51 citation statements)

References 30 publications

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“…A similar result was obtained by Diatloff et al (1995), who reported that corn root growth increased significantly with the applications of lower concentration of La 3+ . In contrast to the results of another study (d 'Aquino et al 2009), the results suggested that Vol. 59, 2013, No.…”

Section: Discussioncontrasting

confidence: 56%

“…REEs enriched fertilizers have been used in China since the 1970s (d 'Aquino et al 2009), and the effects of REEs on physiological responses were reported in different plant species (Fashui et al 2000, Chen et al 2001, Hu et al 2002. Chlorophyll content, photosynthetic rate, and plant biomass could be enhanced by REEs (Wu et al 1983, Chang 1991, He and Xue 2005.…”

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confidence: 99%

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Effects of lanthanum on growth and accumulation in roots of rice seedlings

Liu¹,

Wang²,

Zhang³

et al. 2013

Plant Soil Environ.

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Hormetic effects on the growth were found in the roots of rice (Oryza sativa L. cv. Shengdao 16) exposed to increasing concentrations of La 3+ (0.05, 0.1, 0.5, 1.0, and 1.5 mmol/L). The results indicated that La 3+ promoted the growth of rice roots at 0.05 mmol/L, but inhibited the growth at 1.0 and 1.5 mmol/L La 3+ after 13 days of exposure. Transmission electron microscope showed that La 3+ was mainly deposited in the cell walls of the roots. In addition, the accumulation of K, Mg, Ca, Na, Fe, Mn, Zn, Cu, and Mo in the roots was also affected with the exposure of different La 3+ treatments. It showed that La 3+ affected the nutritional status of roots and further regulated the growth of rice.

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Section: Discussioncontrasting

confidence: 56%

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confidence: 99%

Effects of lanthanum on growth and accumulation in roots of rice seedlings

Liu¹,

Wang²,

Zhang³

et al. 2013

Plant Soil Environ.

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“…Meanwhile, excessive ROS accumulated in the roots and directly damaged lipids, proteins, nucleic acids and other biological macromolecules [35]; additionally, the Fenton and Haber-Weiss reactions may have induced the more toxic ·OH [16]. The accumulation of ROS eventually led to membrane lipid peroxidation, and affected membrane selectivity, leading to massive penetration of electrolytes and some small organic molecules, and inevitably damaging the cell membrane [36]. However, the MDA content decreased significantly, which was inconsistent with some previous studies [37], and was in agreement with studies of Wang et al [38] and Zhang et al [39].…”

Section: Acc E P Ted P R E P R I Ntmentioning

confidence: 97%

Effects of bisphenol A on antioxidant system in soybean seedling roots

Wang

Han

et al. 2015

Enviro Toxic and Chemistry

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Bisphenol A (BPA), an emerging pollutant in the environment, has potential toxic effects on plants. The toxicity mechanism, however, remains largely unknown. The antioxidant system plays an important role in protecting plants against the damage of stress. The present study investigated the effects of BPA on the antioxidant system (superoxide dismutase [SOD], peroxidase [POD], catalase [CAT], ascorbic acid [AsA], proline, reduced glutathione [GSH]), reactive oxygen species (ROS; hydrogen peroxide [H2 O2 ], superoxide anion [O2 (-) ]) accumulation, and membrane lipid peroxidation (malondialdehyde [MDA], cell membrane permeability) in soybean seedling roots. The 1.5 mg L(-1) BPA exposure did not affect test indices in the roots. Exposure to 3.0 mg L(-1) , 6.0 mg L(-1) , 12.0 mg L(-1) , or 24.0 mg L(-1) BPA caused increases in SOD (except for 3.0 mg L(-1) BPA) and CAT activities, as well as in AsA, proline, and GSH (except for 3.0 mg L(-1) BPA) content, leading to increases in the H2 O2 and O2 (-) content and to membrane lipid peroxidation. Exposure to 48.0 mg L(-1) or 96.0 mg L(-1) BPA caused decreases in the CAT activity and AsA/GSH content, as well as increases in the SOD and POD activities and the proline content, leading to excess ROS accumulation (i.e., H2 O2 and O2 (-) ) and cell membrane damage. After withdrawal of BPA exposure, ROS accumulation and membrane lipid peroxidation were alleviated by regulating a special antioxidant enzyme or substance.

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“…These and other technical innovations will strongly increase REE demand in the near future; hence, accumulation of these elements in the soil may become an environmental concern (Zeng et al, 2006;D'Aquino et al, 2009;Du and Graedel, 2011).…”

Section: Introductionmentioning

confidence: 99%

Rare Earth Element Concentrations in Brazilian Benchmark Soils

Silva

Nascimento

Silva

et al. 2016

Rev. Bras. Ciênc. Solo

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Studies regarding background concentrations of rare earth elements (REEs) are scarce and have mainly focused on a limited number of soil types from the northern hemisphere. The aim of this study was to determine REE concentrations in thirty-five benchmark soils of Brazil. Composite soil samples were taken from areas under native vegetation or with minimal anthropogenic influence. Concentrations of La, Ce, Pr, Nd, Sm, Eu, Gd, Yb, Lu, Dy, Er, Ho, Tb, Tm, Y, Sc, and Fe were determined by ICP-OES using a cyclonic spray chamber/nebulizer system after microwave acid digestion. Results were assessed by descriptive statistics, Pearson correlation, and principal component analysis (PCA). Regression analyses among Fe, organic carbon, and REEs were performed to provide a tool for estimating REE concentrations in soils. The REE concentrations in the Brazilian benchmark soils were in the following order: Ce > La > Nd > Pr > Y > Sm > Gd > Sc > Dy > Yb > Eu > Er > Tb > Ho > Lu > Tm. The clear decoupling between light and heavy rare earth elements in soils, indicated by multivariate analysis, is mainly related to differences in parent material. The lowest REE concentrations were found in sandy sediments, whereas the highest REE concentrations were observed in basalt, biotite gneiss, and clayey sediments. The organic carbon and Fe concentrations can properly predict REE concentrations in soils; such a finding can assist in estimating REE concentrations in soils not only in Brazil but also in similar soils developed under tropical conditions.

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Effect of some light rare earth elements on seed germination, seedling growth and antioxidant metabolism in Triticum durum

Cited by 141 publications

References 30 publications

Effects of lanthanum on growth and accumulation in roots of rice seedlings

Effects of lanthanum on growth and accumulation in roots of rice seedlings

Effects of bisphenol A on antioxidant system in soybean seedling roots

Rare Earth Element Concentrations in Brazilian Benchmark Soils

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