Macroelemental composition of cadmium stressed lettuce plants grown under conditions of intensive sulphur nutrition

Matraszek, Renata; Hawrylak-Nowak, Barbara; Chwil, Stanisław; Chwil, Mirosława

doi:10.1016/j.jenvman.2016.05.017

Cited by 29 publications

(10 citation statements)

References 25 publications

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“…Cadmium (Cd) has been known as a highly ecotoxic heavy metal and environmental hazard that causes detrimental effects in plant growth and human health [ 7 , 46 , 47 , 48 , 49 ]. Alleviation of metal toxicity by sulfur (S) application has been observed in many plant species in previous studies [ 34 , 50 , 51 ]. Moreover, all the results in these studies demonstrated that S addition can enhance plant growth under metal toxicity.…”

Section: Discussionmentioning

confidence: 99%

Sulfur Protects Pakchoi (Brassica chinensis L.) Seedlings against Cadmium Stress by Regulating Ascorbate-Glutathione Metabolism

Lou

Kang

HongXi

et al. 2017

IJMS

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Cadmium (Cd) pollution in food chains pose a potential health risk for humans. Sulfur (S) is a significant macronutrient that plays a significant role in the regulation of plant responses to diverse biotic and abiotic stresses. However, no information is currently available about the impact of S application on ascorbate-glutathione metabolism (ASA-GSH cycle) of Pakchoi plants under Cd stress. The two previously identified genotypes, namely, Aikangqing (a Cd-tolerant cultivar) and Qibaoqing (a Cd-sensitive cultivar), were utilized to investigate the role of S to mitigate Cd toxicity in Pakchoi plants under different Cd regimes. Results showed that Cd stress inhibited plant growth and induced oxidative stress. Exogenous application of S significantly increased the tolerance of Pakchoi seedlings suffering from Cd stress. This effect was demonstrated by increased growth parameters; stimulated activities of the antioxidant enzymes and upregulated genes involved in the ASA-GSH cycle and S assimilation; and by the enhanced ASA, GSH, phytochelatins, and nonprotein thiol production. This study shows that applying S nutrition can mitigate Cd toxicity in Pakchoi plants which has the potential in assisting the development of breeding strategies aimed at limiting Cd phytoaccumulation and decreasing Cd hazards in the food chain.

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Section: Discussionmentioning

confidence: 99%

Sulfur Protects Pakchoi (Brassica chinensis L.) Seedlings against Cadmium Stress by Regulating Ascorbate-Glutathione Metabolism

Lou

Kang

HongXi

et al. 2017

IJMS

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“…longifolia ) is a plant species produced and consumed worldwide. As a common leafy vegetable, lettuce is rich in fiber, vitamins (A, B, C, and K), chlorophyll, and carotenoids which are vital for human health [ 6 ]. Nevertheless, it has been reported that lettuce has a comparatively high accumulation of cadmium in its leaves [ 7 ], and it has been proposed as an indicator plant to test cadmium polluted soils and plant tissues [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Rapid Determination of Cadmium Contamination in Lettuce Using Laser-Induced Breakdown Spectroscopy

et al. 2018

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Quick access to cadmium (Cd) contamination in lettuce is important to supervise the leafy vegetable growth environment and market. This study aims to apply laser-induced breakdown spectroscopy (LIBS) technology for fast determination of Cd content and diagnosis of the Cd contamination degree in lettuce. Emission lines Cd II 214.44 nm, Cd II 226.50 nm, and Cd I 228.80 nm were selected to establish the univariate analysis model. Multivariate analysis including partial least squares (PLS) regression, was used to establish Cd content calibration models, and PLS model based on 22 variables selected by genetic algorithm (GA) obtained the best performance with correlation coefficient in the prediction set Rp2 = 0.9716, limit of detection (LOD) = 1.7 mg/kg. K-Nearest Neighbors (KNN) and random forest (RF) were used to analyze Cd contamination degree, and RF model obtained the correct classification rate of 100% in prediction set. The preliminary results indicate LIBS coupled with chemometrics could be used as a fast, efficient and low-cost method to assess Cd contamination in the vegetable industry.

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“…Plants exposed to Cd usually exhibit lowest nutrient contents because Cd decreases plant biomass production, while nutrient content is positively correlated to biomass production (EKVALL; GREGER, 2003;CLEMENS, 2006;MATRASZEK et al, 2016aMATRASZEK et al, , 2016b.…”

Section: Discussionmentioning

confidence: 99%

“…Gratão et al (2015) reported that P, Ca and Mg concentrations in the root and shoot of tomato (Solanum lycopersicum) exposed to 1 mmol L -1 Cd were lower than control treatment. However, P, K VAN BELLEGHEM et al, 2007;AKHTER et al, 2014;ZHANG et al, 2014) and the beneficial effect of S on Cd tolerance (BABULA et al, 2009; RABÊLO; AZEVEDO; MONTEIRO, 2017b), but little is known about how S interferes in nutrient uptake and root development (MATRASZEK et al, 2016b;, especially in plants used in Cd phytoextraction processes (DEDE; OZDEMIR, 2016). Plants grown under Cd exposure usually exhibit reduced root development and formation of root iron (Fe) plaques, which limits Cd phytoextraction (SEBASTIAN; PRASAD, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…MATRASZEK et al, 2017), lettuce(MATRASZEK et al, 2016a) and mustard(MATRASZEK et al, 2016b), which is dangerous for food production but desirable for Cd phytoextraction (SHEORAN; SHEORAN; POONIA, 2016). Excessive S supply increases Cd content in the roots due to reduction in Fe plaques formation(FAN et al, 2010) and allows highest Cd transport from roots to shoot(ZHANG et al, 2013), possibly due to PCs synthesis, since PCs act in Cd transport from roots to shoot.…”

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confidence: 99%

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Sulfur supply as a sustainable technology for phytoextraction: its effects on cadmium uptake and detoxification in Panicum maximum Jacq. cv. Massai

Rabêlo¹

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Macroelemental composition of cadmium stressed lettuce plants grown under conditions of intensive sulphur nutrition

Cited by 29 publications

References 25 publications

Sulfur Protects Pakchoi (Brassica chinensis L.) Seedlings against Cadmium Stress by Regulating Ascorbate-Glutathione Metabolism

Sulfur Protects Pakchoi (Brassica chinensis L.) Seedlings against Cadmium Stress by Regulating Ascorbate-Glutathione Metabolism

Rapid Determination of Cadmium Contamination in Lettuce Using Laser-Induced Breakdown Spectroscopy

Sulfur supply as a sustainable technology for phytoextraction: its effects on cadmium uptake and detoxification in Panicum maximum Jacq. cv. Massai

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