Subcellular location of horseradish peroxidase in horseradish leaves treated with La(III), Ce(III) and Tb(III)

Ye, Yaxin; Wang, Lihong; Huang, Xiaohua; Lu, Tianhong; Ding, Xifeng; Zhou, Qing; Guo, Shuntang

doi:10.1016/j.ecoenv.2007.11.020

Cited by 21 publications

(10 citation statements)

References 33 publications

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“…With more and more REEs getting into the environment as a result of their usage as microfertilizers in agriculture, they would inevitably enter the rural environment and transfer to human bodies through the food chains. Thus, numerous studies on biogeochemical behaviors and the effects of REEs on agricultural ecosystems have been conducted (Chua 1998;Chua et al 1998;Shan et al 2003;Lai et al 2006;Ding et al 2006;Ye et al 2008). In our previous work, we investigated the geochemistry and biogeochemistry of REEs in a surface environment (soil-plant system) in South China (Miao et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Environmental biogeochemical characteristics of rare earth elements in soil and soil-grown plants of the Hetai goldfield, Guangdong Province, China

et al. 2010

Environ Earth Sci

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Very few studies deal with the biogeochemical behaviors of rare earth elements (REEs) in goldfields. This paper presents the geochemical and biogeochemical characteristics of REEs within the soil-plant system in the Hetai goldfield, Guangdong, China. The samples from the goldfield region show anomalies in distribution patterns and behavioral characteristics of REES as compared with those from the background areas. The REEs in rocks, soils, and plants prove to be much higher than those in the surrounding regions. The distribution patterns of REEs are characterized by LREE-enrichment and HREE-depletion, with the REE concentrations in Layer A being the highest. Differentiations between LREEs and HREEs may lead to some extent of negative Eu anomaly in the soils. Research results demonstrate that the REEs in a soil profile can be transferred and accumulated during the mineral formation and supergenic geochemical processes, and the anomalies are obviously related to the geological settings for the REE-bearing ore-forming processes and to the geochemical characteristics of the habitats for the REE-bearing plants. For Dicranopteris dichotoma, the total amount of REEs in the tissues shows an order of leaf [ root [ stem, while for Pinus massoniana the order becomes root [ leaf [ stem. The distribution patterns of REEs in Pinus massoniana leaves are similar to those in soils where the plants grow up in the mineralization area. However, in the background areas the REE distribution patterns for Pinus massoniana stems are similar to those for soils where the plants grow up. Parameters such as biological absorption coefficients and biological transfer coefficients show the differences in REE absorption features among plants and indicate that REEs can be transferred among plant organs. The two coefficients can reveal the different survival mechanisms for the two plant species, which are subject to long-term REE-affected stress conditions in the gold mineralization zone.

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Section: Introductionmentioning

confidence: 99%

Environmental biogeochemical characteristics of rare earth elements in soil and soil-grown plants of the Hetai goldfield, Guangdong Province, China

et al. 2010

Environ Earth Sci

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“…In China, REEs enriched fertilizers have been used since the 1970s1. REEs enter into the mesophyll cells via apoplast and symplast channels or plasmodesmata23. It has been observed that the appropriate amount of REEs has positive effects on seed germination, harvest quality, chlorophyll content, photosynthetic rate, plant biomass, and root development456.…”

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confidence: 99%

Lanthanum regulates the reactive oxygen species in the roots of rice seedlings

Liu

Zheng

Wang

2016

Sci Rep

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In this study, the effects of La3+ on the reactive oxygen species (ROS) and antioxidant metabolism were studied in the roots of rice (Oryza sativa L. cv Shengdao 16) exposed to increasing concentrations of La3+ (0.05, 0.1, 0.5, 1.0, and 1.5 mM). The level of hydrogen peroxide, superoxide anion, and malondialdehyde was increased by 0.5, 1.0 and 1.5 mM La3+, and the activity of catalase and peroxidase was increased by 0.05 and 0.1 mM La3+. However, La3+ treatments stimulated superoxide dismutase activity in the roots of rice seedlings at all tested concentrations. In addition, the probe 2′,7′-dichlorofluorescein diacetate (H2DCF-DA) was used to investigate the instantaneous change of ROS in the root cells with the laser-scanning confocal microscopy. The result indicated that ROS level was declined after treated with 0.05 mM La3+. The results showed that the appropriate concentration of La3+ decreased the level of ROS, and hormetic effects on the antioxidant metabolism were found in the roots of rice exposed to 0.05, 0.1, 0.5, 1.0, and 1.5 mM La3+.

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“…Moreover, appropriate amount of REEs not only promotes seed germination, harvest quality, shoot growth, and root development, but also improves the plant resistance against stress and element uptake (He and Xue 2005, d'Aquino et al 2009, Liu et al 2012. REEs can enter into mesophyll cells via apoplast and symplast channels or plasmodesmata, and participate in the regulation of physiological and biochemical function (Gao et al 2003, Guo et al 2007, Ye et al 2008. However, the results of field trials and laboratory studies on REEs are inconsistent until now (Diatloff et al 1995, von Tucher and Schmidhalter 2005.…”

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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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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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Subcellular location of horseradish peroxidase in horseradish leaves treated with La(III), Ce(III) and Tb(III)

Cited by 21 publications

References 33 publications

Environmental biogeochemical characteristics of rare earth elements in soil and soil-grown plants of the Hetai goldfield, Guangdong Province, China

Environmental biogeochemical characteristics of rare earth elements in soil and soil-grown plants of the Hetai goldfield, Guangdong Province, China

Lanthanum regulates the reactive oxygen species in the roots of rice seedlings

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

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