Comparisons of cadmium subcellular distribution and chemical forms between low-Cd and high-Cd accumulation genotypes of watercress (Nasturtium officinale L. R. Br.)

Wang, Jianbing; Li-ying, SU; Yang, Junzhi; Yuan, Jiangang; Yin, Aiguo; Qiu, Qiu; Zhang, Kun; Yang, Zhongyi

doi:10.1007/s11104-015-2580-8

Cited by 80 publications

(40 citation statements)

References 33 publications

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“…High and low Cd accumulation cultivars have been identified in many crops, such as rape (Niu, 2012; Wu et al, 2015), pakchoi (Zhou et al, 2016), watercress (Wang et al, 2015), and Chinese leaf mustard (Dai et al, 2012). Differences in Cd absorption and accumulation among different turnip cultivars or genotypes also have been indicated in studies around the world (Bingham et al, 1975; Molahoseini and Feizi, 2012; Parveen et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Cadmium Accumulation Characteristics in Turnip Landraces from China and Assessment of Their Phytoremediation Potential for Contaminated Soils

Zhang

Yang

et al. 2016

Front. Plant Sci.

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Heavy metal (HM) pollution is a global environmental problem that threatens ecosystem and human health. Cadmium (Cd) pollution is the most prominent HM pollution type because of its high toxicity, strong migration, and the large polluted area globally. Phytoremediation of contaminated soil is frequently practiced because of its cost-effectiveness and operability and because it has no associated secondary pollution. High-accumulation plants, including those identified as hyperaccumulators, play an important role in phytoremediation. Therefore, screening of plants to identify hyperaccumulators is important for continued phytoremediation. In the present study, we investigated the Cd tolerance and accumulation capabilities of 18 turnip landraces from China under a soil experiment with known Cd level. The results indicated that turnip has a high capacity for Cd accumulation. Furthermore, significant differences in Cd tolerance and accumulation characteristics were found among different landraces when they grew at 50 mg kg-1 (dry weight) Cd concentration. Among the studied landraces, five turnip landraces met the requirements of Cd hyperaccumulators and three landraces were identified as potential candidates. However, the total Cd content accumulated by individual plant of different turnip landraces was dependent on both the Cd accumulation capacity and plant biomass. Compared with some reported Cd hyperaccumulators, turnip not only shows a high Cd-accumulation capacity but also has rapid growth and a wide distribution area. These advantages indicate that turnip may have considerable potential for phytoremediation of Cd-contaminated soil. Furthermore, the study also indicates that it is not advisable to consume turnip cultivated in an environment that exceeds safe Cd levels.

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Section: Discussionmentioning

confidence: 99%

Cadmium Accumulation Characteristics in Turnip Landraces from China and Assessment of Their Phytoremediation Potential for Contaminated Soils

Zhang

Yang

et al. 2016

Front. Plant Sci.

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“…Some evidences also indicated that the presence of Cd affected cell wall construction and vesicular trafficking [7]. Plants have developed several detoxification mechanisms to alleviate Cd toxicity, including the existence of different forms of metals and sequestration into the cell wall [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Mwamba et al [14] demonstrated that metals which are both in the form of insoluble phosphate and firmly adsorbed in the cell walls and vacuoles are not free to migrate and have low toxicity, whereas Xu et al [15] reported that high Cd mobility is often in the forms of the water soluble Cd, inorganic Cd, and Cd complexes with organic acids. Wang et al [9], in a comparison of watercress genotypes with low-and high Cd-accumulation, found that low-Cd genotypes may convert Cd into pectate/proteinbound forms and insoluble phosphate precipitates to a greater degree than high Cd types, and that this could be the primary method by which Cd toxicity and mobility are reduced in watercress.…”

Section: Introductionmentioning

confidence: 99%

The Response of Duckweed (Lemna minor L.) Roots to Cd and Its Chemical Forms

Xue

Wang

Huang

et al. 2018

Journal of Chemistry

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The response of duckweed (Lemna minor L.) roots to Cd and its chemical forms was investigated. The relative root growth rate and concentrations of Cd and its different chemical forms in the root, that is, ethanol-extractable (F E -Cd), HCl-extractable (F HClCd), and residual fractions (F r -Cd), were quantified. Weibull model was used to unravel the regression between the relative root elongation (RRL) with chemical forms of Cd. Parameters assessed catalase (CAT), peroxidases (POD), and superoxide dismutase (SOD), as well as malondialdehyde (MDA) and total antioxidant capacity (A-TOC). Our results show that both the relative root growth rate and relative frond number were affected by Cd concentrations. The chemical forms of Cd were influenced by Cd content in the medium. Relative root elongation (RRL) showed a significant correlation with chemical forms of Cd. Additionally, POD and SOD increased at lower Cd concentrations followed by a decrease at higher Cd concentrations (at more than 5 M Cd). Moreover, MDA and A-TOC increased and CAT decreased with increasing Cd exposure. Furthermore, CAT showed a significant correlation with F HCl -Cd. Taken together, it can be concluded that the chemical forms of Cd are statistically significant predictors of Cd toxicity to duckweed and to the other similar aquatic plants.

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“…Once taken up by plants, HM can exist in different chemical forms, including inorganic, water-soluble, pectate- and protein-integrated, undissolved phosphate and oxalate forms (Wu et al, 2005). For example, conversion of cadmium (Cd) into insoluble phosphate precipitates and pectate- or protein-bound forms is the primary means for reducing Cd mobility and toxicity in Nasturtium officinale (Wang J.B. et al, 2015). Copper (Cu) bound to the cell walls in fibrous roots of Malus sieversii mainly exists in phosphate and oxalate forms, which can explain some of the variation in Cu sensitivity in M. sieversii (Wang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Subcellular Compartmentalization and Chemical Forms of Lead Participate in Lead Tolerance of Robinia pseudoacacia L. with Funneliformis mosseae

Zhang

Song

et al. 2017

Front. Plant Sci.

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The effect of arbuscular mycorrhizal fungus on the subcellular compartmentalization and chemical forms of lead (Pb) in Pb tolerance plants was assessed in a pot experiment in greenhouse conditions. We measured root colonization, plant growth, photosynthesis, subcellular compartmentalization and chemical forms of Pb in black locust (Robinia pseudoacacia L.) seedlings inoculated with Funneliformis mosseae isolate (BGC XJ01A) under a range of Pb treatments (0, 90, 900, and 3000 mg Pb kg-1 soil). The majority of Pb was retained in the roots of R. pseudoacacia under Pb stress, with a significantly higher retention in the inoculated seedlings. F. mosseae inoculation significantly increased the proportion of Pb in the cell wall and soluble fractions and decreased the proportion of Pb in the organelle fraction of roots, stems, and leaves, with the largest proportion of Pb segregated in the cell wall fraction. F. mosseae inoculation increased the proportion of inactive Pb (especially pectate- and protein-integrated Pb and Pb phosphate) and reduced the proportion of water-soluble Pb in the roots, stems, and leaves. The subcellular compartmentalization of Pb in different chemical forms was highly correlated with improved plant biomass, height, and photosynthesis in the inoculated seedlings. This study indicates that F. mosseae could improve Pb tolerance in R. pseudoacacia seedlings growing in Pb polluted soils.

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Comparisons of cadmium subcellular distribution and chemical forms between low-Cd and high-Cd accumulation genotypes of watercress (Nasturtium officinale L. R. Br.)

Cited by 80 publications

References 33 publications

Cadmium Accumulation Characteristics in Turnip Landraces from China and Assessment of Their Phytoremediation Potential for Contaminated Soils

Cadmium Accumulation Characteristics in Turnip Landraces from China and Assessment of Their Phytoremediation Potential for Contaminated Soils

The Response of Duckweed (Lemna minor L.) Roots to Cd and Its Chemical Forms

Subcellular Compartmentalization and Chemical Forms of Lead Participate in Lead Tolerance of Robinia pseudoacacia L. with Funneliformis mosseae

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