Cadmium accumulation and tolerance of two castor cultivars in relation to antioxidant systems

Zhang, Hanzhi; Guo, Qingjun; Yang, Jin‐yan; Chen, Tongbin; Zhu, Guangtian; Peters, Marc; Wei, Rongfei; Tian, Liyan; Wang, Chunyu; Tan, Deyun; Ma, Jie; Wang, Gangming; Wan, Yingxin

doi:10.1016/j.jes.2014.08.005

Cited by 37 publications

(21 citation statements)

References 45 publications

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“…Here, when Cd concentration in roots reached approximately 2000 mg/ kg dry weight, the TI values were approximately 0.7 (Table 1), and both castor cultivars grew normally. Zhang et al (2014) also reported normal growth of castor (cultivar Zibo no. 5) (TI¼0.65), at a root Cd concentration of 2538 mg/kg dry weight.…”

Section: Accumulation and Toxicitymentioning

confidence: 95%

“…Here, Cd concentrations in roots were higher than in aerial parts (stem, leaf) of the plants, and the TFs of both castor cultivars were lower than 1 (Table 2). Zhang et al (2014) reported that the Cd TF of castor ranged from 4.90% to 13.8% at a 1 or 2 mg/L Cd dose. According to its TFs ( o1), castor is not a Cd phytoextraction plant.…”

Section: Accumulation and Toxicitymentioning

confidence: 99%

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Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of two castor ( Ricinus communis L.) cultivars exhibit differences in Cd accumulation

Zhang

Guo

Yang

et al. 2015

Ecotoxicology and Environmental Safety

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a b s t r a c tThe aims of this study were: (1) the study of cadmium (Cd) accumulation and toxicity in different castor cultivars (Ricinus communis L.); (2) to investigate changes in antioxidant enzymatic activities and the subcellular distribution of Cd in young and old leaves from two different castor cultivars, after exposure to two different Cd concentrations, and explore the underlying mechanism of Cd detoxification focusing on antioxidant enzymes and subcellular compartmentalization. The Cd concentration, toxicity, and subcellular distribution, as well as superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities were measured in Zibo-3 and Zibo-9 cultivars after exposure to two different concentrations of Cd (2 mg/L and 5 mg/L) for 10 days. This research revealed Cd accumulation characteristics in castor are root4 stem4 young leaf 4old leaf. Castor tolerance was Cd dose exposure and the cultivars themselves dependent. Investigation of subcellular Cd partitioning showed that Cd accumulated mainly in the heat stable protein (HSP) and cellular debris fractions, followed by the Cd rich granule (MRG), heat denatured protein (HDP), and organelle fractions. With increasing Cd concentration in nutrient solution, the decreased detoxified fractions (BDM) and the increased Cd-sensitive fractions (MSF) in young leaves may indicate the increased Cd toxicity in castor cultivars. The BDM-Cd fractions or MSF-Cd in old leaves may be linked with Cd tolerance of different cultivars of castor. The antioxidant enzymes that govern Cd detoxification were not found to be active in leaves. Taken together, these results indicate Cd tolerance and toxicity in castor can be explained by subcellular partitioning.Crown

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Section: Accumulation and Toxicitymentioning

confidence: 95%

Section: Accumulation and Toxicitymentioning

confidence: 99%

Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of two castor ( Ricinus communis L.) cultivars exhibit differences in Cd accumulation

Zhang

Guo

Yang

et al. 2015

Ecotoxicology and Environmental Safety

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“…It had been reported that Cd may be readily taken up by plants, but some crops can restrict its translocation from roots to stems and to leaves and fruits (Arao, Ae, Sugiyama, & Takahashi, 2003; Harris & Taylor, 2001). This restriction may result in proportionally lower Cd concentration in the fruits, storage roots and/or tubers, and seeds than in the roots or leaves and provides possibilities to selecting Cd‐safe (low Cd accumulation) genotypes or cultivars (Greger & Lofstedt, 2004; Zhang et al., 2014). Therefore, selecting soybean cultivars with low concentration in their seed and higher concentration in root might be possible.…”

Section: Introductionmentioning

confidence: 99%

Patterns of cadmium uptake and accumulation by exclusion and inclusion soybean cultivars

et al. 2020

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In the areas where the soils are polluted by cadmium (Cd), farmers cannot afford to use their lands for remediation due to high demand for soybean (Glycine max L.) production. In order to provide information for safe soybean production and achieve the phytoremediation using the root at the meantime, four soybean cultivars (mentioned as Cd excluder and Cd includer) differing in seed Cd accumulation were grown in a mixed growing media treated with different Cd concentrations (0 and 0.35 mg kg −1 ) in a growth cabinet. The biomass and Cd concentration in roots, stems, leaves, pods, and seeds were measured at the beginning of seed development (R5) and maturity (R8) stages; accumulation coefficient and translocation coefficient of Cd in different organs were calculated. Cadmium concentration in seeds was positively correlated with the Cd concentration in stem, leaf, and pod. Cadmium concentration in the roots of the Cd excluder was significantly higher than that in the Cd includer at the R5 and R8 stages; however, the Cd concentration in the seeds of the Cd includer was higher than that in the Cd excluder. Compared with the Cd excluder, more Cd was transported from the root to the aboveground organs of Cd includer. This suggests that Cd excluder with high cadmium accumulation in the root and low accumulation in the seed could provide a possible way to develop Cd-safe cultivars with high phytoremediation capacity when grown on Cd-polluted lands.

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“…Successful phytoremediation requires a suitable plant for use on the toxicant. Castor bean (Ricinus communis L.), a C3 plant of the Euphorbiaceae, has great potential for phytoremediation of Cd or Pb contaminated soil (Bauddh and Singh, 2012;Huang et al, 2011;Liu et al, 2008;Shi and Cai, 2009;Zhang et al, 2014aZhang et al, , 2015. Castor bean is also an important energy crop for biofuel or biodiesel production but inedible for humans and animals.…”

Section: Introductionmentioning

confidence: 99%

Comparison of chelates for enhancing Ricinus communis L. phytoremediation of Cd and Pb contaminated soil

Zhang

Guo

Yang

et al. 2016

Ecotoxicology and Environmental Safety

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a b s t r a c tWe studied chelate effects on castor bean (Ricinus communis L.) growth. These effects included Cd and Pb accumulation in plant tissues and the chemical behavior of Cd and Pb in the plant rhizosphere and nonrhizosphere. Tests were conducted in a glasshouse using the rhizobag method. Two castor bean cultivars (Zibo-3 and Zibo-9) were grown in soil contaminated with 3.53 mg/kg Cd and 274 mg/kg Pb. The soil was treated with citric acid (CA), ethylenediamine disuccinic acid (EDDS) or ethylenediamine tetraacetic acid (EDTA) (5 mmol/kg). EDDS-treated soil produced 28.8% and 59.4% greater biomass for Zibo-3 and Zibo-9 respectively. In contrast, CA and EDTA inhibited the growth of the two cultivars. Zibo-9 had greater tolerance than Zibo-3 to chelate toxicity. Based on Cd and Pb plant uptake, EDDS could substitute for EDTA for phytoremediation of Cd in soil. EDTA was the most effective of the three chelates for Pb phytoremediation but it is less suitable for field use due to toxicology environmental persistence. Acid extractable Cd and Pb in the rhizosphere or reducible Cd and Pb in the non-rhizosphere of soil were the main influences on Cd and Pb accumulation in castor bean.

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Cadmium accumulation and tolerance of two castor cultivars in relation to antioxidant systems

Cited by 37 publications

References 45 publications

Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of two castor ( Ricinus communis L.) cultivars exhibit differences in Cd accumulation

Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of two castor ( Ricinus communis L.) cultivars exhibit differences in Cd accumulation

Patterns of cadmium uptake and accumulation by exclusion and inclusion soybean cultivars

Comparison of chelates for enhancing Ricinus communis L. phytoremediation of Cd and Pb contaminated soil

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