Cadmium uptake and partitioning during the vegetative growth of sunflower exposed to low Cd2+ concentrations in hydroponics

Cornu, Jean-Yves; Bakoto, R.; Bonnard, Olivier; Bussiere, Sylvie; Coriou, Cécile; Sirguey, Catherine; Sterckeman, Thibault; Thunot, Stéphane; Visse, M. I.; Nguyen, Christophe

doi:10.1007/s11104-016-2839-8

Cited by 27 publications

(18 citation statements)

References 42 publications

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“…Increasing the Cd concentration in the hydroponic condition and soil culture decreased the root length, leaf area, and fresh and dry weights of shoots and roots of sunflowers as compared to controls [29]. Similarly, root biomass, stem diameter, and total leaf area in sunflowers was observed to be strongly affected with Cd treatments [30]. The dose of EDTA did not affect growth significantly, and the biomass of both plants was similar.…”

Section: Effect Of Heavy Metal and Edta Treatment On Plant Growthmentioning

confidence: 83%

Uptake and Leaching of Cu, Cd, and Cr after EDTA Application in Sand Columns Using Sorghum and Pearl Millet

Bareen¹,

Rafiq²,

Shafiq³

et al. 2019

Pol. J. Environ. Stud.

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Metal contamination is a matter of serious concern throughout industrial areas of the world. Most industrially polluted regions are laden with heavy metals and among them Cu, Cd, and Cr are the most important especially in tannery-and textile-polluted areas. The process of phytoextraction can be enhanced with biological or chemical assistants. Among the chelating agents, EDTA has been the most effective in hastening the process of phytoextraction [1, 2]. A few plant species with high biomass show the capacity to translocate high amounts of heavy metals from roots to shoots [3]. Zhivotovsky et al. [4] have reported that complexation of metals with EDTA reduces their bioaccumulation in roots and thus enhances translocation of metals to aerial parts of plants. Nevertheless, Barrutia et al. [5] argued that

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Section: Effect Of Heavy Metal and Edta Treatment On Plant Growthmentioning

confidence: 83%

Uptake and Leaching of Cu, Cd, and Cr after EDTA Application in Sand Columns Using Sorghum and Pearl Millet

Bareen¹,

Rafiq²,

Shafiq³

et al. 2019

Pol. J. Environ. Stud.

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“…Since Cd excess in plants impacts essential metal homeostasis ( Cornu et al, ; Song et al, ), we examined several nutrients including iron (Fe), zinc (Zn), manganese (Mn), and magnesium (Mg). At early stage (30 d), #138 and #177 accumulated less Fe in the shoots than #208 and #244.…”

Section: Resultsmentioning

confidence: 99%

Isolation and identification of rapeseed (Brassica napus) cultivars for potential higher and lower Cd accumulation

Zhang

Wang

et al. 2018

J. Plant Nutr. Soil Sci.

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Cadmium (Cd) as a non-essential toxic metal has become one of the seriously environmental problems. Overload of Cd into plant shoots, particularly the addible parts (i.e., grains), jeopardizes crop production and food safety. Isolating and identifying genotypic variations in Cd accumulation of rapeseed (Brassica napus) cultivars is an efficient approach for phytoremediation and developing lower Cd-accumulating plants. In this study, a trial was conducted under natural condition in Nanjing, China, from 2014 to 2017, and identified 64 rapeseed cultivars collected from the areas of Gui Zhou province. Rapeseed grew under moderate Cd exposure (5 mg kg -1 ) for 5 months, and shoots were harvested for Cd quantification. A great variation of total Cd concentrations in shoots, ranking from 0.16 to 17.03 mg Cd kg -1 , was found. Following the initial examination of all cultivars, two sets of plants with high (#138 and #177) and low (#208 and #244) Cd concentrations were further investigated. Throughout the growth period, cultivars #138 and #177 accumulated more Cd during vegetative (30, 60, and 120 d) and late developmental (180 d) stages than cultivars #208 and #244. The higher Cd concentration in shoots of #138 and #177 was associated with the higher Cd concentration in xylem sap, suggesting the greater capability of Cd translocation from roots to shoots. Compared to #208 and #244, Cd exposure moderately reduced zinc and iron concentrations in some tissues of #138 and #177, whereas the manganese and magnesium concentrations showed no change. Although #138 and #177 cultivars accumulated more Cd in their shoots, no Cd toxicity was detected. Moreover, both #138 and #177 cultivars had a similar biomass to #208 or #244. These results suggest that #138 and #177 rapeseeds are tolerant to Cd stress.

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“…Cadmium concentration is often higher in the roots than in the shoots (Jarvis et al, 1976;Lozano-Rodriguez et al, 1997;Harris and Taylor, 2013;Cornu et al, 2016), and generally lower in the seeds than in the stem and leaves (Hinesly et al, 1978;Wiggenhauser et al, 2016;Chen et al, 2018a). In some species, such as lettuce (Lactuca sativa), spinach (Spinacia oleracea), cauliflower (Brassica oleracea) and oat, concentrations are higher in the shoot than in the roots when plants are grown on low Cd contaminated soils.…”

Section: Translocation and Reallocation Of CDmentioning

confidence: 99%

“…Numerous works show that Cd concentration in aerial plant parts increases with the concentration in the root exposure solution (see for instance Jarvis et al (1976); Florijn and Van Beusichem (1993a); Lovy et al (2013)). Moreover, various investigations have shown that Cd content in the xylem sap increases with Cd content in the exposure solution (Salt et al, 1995;Wei et al, 2007;Ueno et al, 2008;Nakamura et al, 2013;Hazama et al, 2015;Cornu et al, 2016).…”

Section: B Transport In the Xylemmentioning

confidence: 99%

Mechanisms of Cadmium Accumulation in Plants

Sterckeman

Thomine

2020

Critical Reviews in Plant Sciences

173

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Cadmium is a non-essential trace metal, which is highly toxic to nearly all living organisms. Soil pollution causes Cd contamination of crops, thereby rendering plant products responsible for the chronic low level Cd over-exposure of numerous populations in the world. For this reason, Cd accumulation in plants has been studied for about five decades now. The research first focused on the relationships between plant and soil Cd levels, on the factors of the metal availability in soil, as well as the root uptake processes. Cd distribution in plant organs was also investigated, first using a macroscopic and eco-physiological approach, then with the help of molecular biology tools, at both tissue and cell scale. Cadmium has no biological function and hijacks the transport pathways of micronutrients such as Fe, Mn or Zn, in order to enter the plant through the roots and be distributed to all its organs. The study of the genes that control the influx and efflux of the Cd 2 + ion in the cytosol, vacuoles and vascular tissues has significantly contributed to the understanding of the metal root uptake and of its transfer to the aerial parts. However, the mechanisms responsible for its distribution to the different aboveground tissues and specially to fruits and seeds have yet to be clarified. This review summarizes current knowledge in order to present a detailed overview of Cd transport and storage, from the rhizosphere to the different organs and tissues of the plant.

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Cadmium uptake and partitioning during the vegetative growth of sunflower exposed to low Cd2+ concentrations in hydroponics

Cited by 27 publications

References 42 publications

Uptake and Leaching of Cu, Cd, and Cr after EDTA Application in Sand Columns Using Sorghum and Pearl Millet

Uptake and Leaching of Cu, Cd, and Cr after EDTA Application in Sand Columns Using Sorghum and Pearl Millet

Isolation and identification of rapeseed (Brassica napus) cultivars for potential higher and lower Cd accumulation

Mechanisms of Cadmium Accumulation in Plants

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