Effects of cadmium stress on growth and amino acid metabolism in two Compositae plants

Background: Cadmium (Cd) is a toxic heavy metal that affects plant growth and human health. Therefore, it is necessary to reduce its concentration. Objectives: This research was done to investigate the role of tire rubber ash enriched cow manure application to reduce Cd uptake by canola. Methods: Treatments were consist of applying three levels of cow manure (0, 10 and 20 t ha-1), two levels of tire rubber ash (0 and 200 kg ha-1) in a Cd polluted soil (0, 5, 10 and 15 mg Cd (kg soil)-1). The Cd and Zinc (Zn) concentration of canola was measured using atomic absorption spectroscopy. This research was done as a factorial experiment in the layout of completely randomized block design with three replications. Results: Applying 20 t ha-1 tire rubber ash enriched cow manure in 10 mg Cd (kg soil)-1 polluted soils decreased root Cd concentration by 30.1%, while the root Zn concentration was increased by 17%. In addition, applying the above amount of organic amendment in 15 mg Cd (kg soil)-1 polluted soils decreased grain Cd concentration by 45.7%, while the grain Zn concentration was increased by 27%. In addition, the aboveground biomass of plant was also increased by 30%. Conclusions: The results of this study showed that enrichment of cow manure with tire rubber ash can decrease plant Cd concentration in Cd polluted soils (interaction effects of Cd and Zn), that is a positive point in environmental research. However, the type of plant and amount of pollution could not be ignored.

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“…1), which stays in agreement with previously published Effect of cow manure on A, CEC; and B, total soil N in soil…”

supporting

confidence: 93%

“…Cadmium (Cd) is a highly toxic element with no positive physiological function for plants and humans (1). Cd is accumulated in different plant organs (2) and can be consumed if these plants are used as food.…”

Section: Introductionmentioning

confidence: 99%

Applying Tire Rubber Ash Enriched Cow Manure as a Useful Way to Decrease Canola Cd Uptake in a Polluted Soil

Baghaie

Aghili

Joshaghani

2018

Jundishapur J Health Sci

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“…Since the beginning of the industrial revolution, the biosphere pollution with toxic metals has increased dramatically. The widespread application of pesticides and fertilizers pose a serious problem for food production, and, last but not least, it represents a potential threat both for agriculture and life globally [3].…”

Section: Introductionmentioning

confidence: 99%

Behavior of Cd Accumulation in Sinapis alba L. in the Presence of Essential Elements (Ca, Mg, Fe, Zn, Mn, Cu, Ni)

Tenea¹,

Vasile²,

Dinu³

et al. 2020

Rev. Chim.

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Heavy metal toxicity in plants is well known due to their severe phytotoxic effects and also because of their capability to accumulate in vegetables. The use of aromatic plants in remediation techniques has increased in the context of environmental pollution issues, including metal soil contamination. Cadmium is knowed as a toxic and bio accumulative element provided by natural or anthropic sources. In this context, the paper presents a laboratory experimental study aiming to evaluate the accumulating and transfer behavior of Cd in the plant organs of Sinapis alba L. (white mustard) and in the presence of essential elements (Ca, Mg, Fe, Zn, Mn, Cu, Ni). The study involves a comparison between white mustard cultivated in unpolluted soil and in two Cd polluted soils at values above the alert (2.8 mg/Kg), respectively intervention threshold for soils with sensitive use (5.6 mg/kg) according to the legislation in force in Romania. While Cd accumulated predominantly in roots (TC values 1.46 and 2.22), its transfer to the stem and leaves was observed too, the TF values for the aerial part of the plant being greater than 1. Moreover, the study showed that certain elements (Zn, Ca, Mg, Mn) were found in higher concentrations in plants subjected to Cd pollution than in the control sample indicating antagonistic effects and Cd toxicity limiting. Other essential metals, such as Cu, Fe and Ni were found in lower concentrations in intoxicated plants compared to control plants. Their translocation from soil in plant organs could be reduced by the Cd toxicity. Contrariwise, the mobility of these elements from roots to leaves could support the tolerance effect of plants to Cd stress. The study allows us to consider that Sinapis alba L. aromatic plants are suitable for soil phytoremediation technologies used in Cd decontamination.

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“…Compared with lead, copper, zinc, and arsenic, the amount of environmental Cd is much smaller, and is easily absorbed by plants and crops such as wheat and rice. It has a strong ability to become enriched, and easily enters the body through the food chain, resulting in a hazard to human health through water, air, and plants [19][20][21][22][23][24]. The symptoms of chronic Cd poisoning occur when contaminated agricultural products and drinking water are ingested.…”

Section: Introductionmentioning

confidence: 99%

“…At present, the research on pernicious metal Cd pollution in farmland soil has become a hot topic of research [19,20,24,[27][28][29][30][31]. Most of the research areas have been concentrated on a small-scale range near the pollution source [11,12,18,22,23,28,31,32], and the mobility of the soil-wheat system and the total health risk of Cd in multiple media bases at the regional level has been rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Concentration, Source, and Total Health Risks of Cadmium in Multiple Media in Densely Populated Areas, China

Cai

Zhang

et al. 2019

IJERPH

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Cadmium (Cd) is a non-essential and harmful element to humans. Cadmium contamination is a serious issue for human health, especially in densely populated agroecology areas. In this study, the investigation of an agroecology area was conducted to gain insight into the relationship between Cd in wheat and soil and then evaluate the Cd total risk for human health. The soil samples and their matching wheat samples, underground water samples, and atmospheric deposition (air) samples were collected from a wheat-growing area in an agroecology plain. The cadmium concentration in the four types of media, in order, was air > soil > wheat > water. The mean concentration of the geoaccumulation index (Igeo) showed that the total Cd in soil (Cd-T) and Cdair reached a mild and moderate pollution level. The results of the correlation and principal component analysis (PCA) showed that the majority of Cdwheat originated from Cd-2 (exchangeable), Cd-4 (humic acid-bound), and Cd-7 (residual). Furthermore, the results of the stepwise multiple linear regression (SMLR) showed that three fractions were primarily controlled by Cd-T: clay, cation exchange capacity (CeC), and total organic carbon (TOC). In addition, the total cancer risk (CR) of Cd in multiple media was, in the order wheat > water > soil > air. It is noteworthy that the Cd content in underground water and wheat by the ingestion pathway posed cancer risks to the local residents and provided a comprehensive insight into multiple media environment management. Furthermore, it provides a very significant basic study for detailed research into the mobility and transformation for factions.

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Effects of cadmium stress on growth and amino acid metabolism in two Compositae plants

Cited by 100 publications

References 62 publications

Applying Tire Rubber Ash Enriched Cow Manure as a Useful Way to Decrease Canola Cd Uptake in a Polluted Soil

Applying Tire Rubber Ash Enriched Cow Manure as a Useful Way to Decrease Canola Cd Uptake in a Polluted Soil

Behavior of Cd Accumulation in Sinapis alba L. in the Presence of Essential Elements (Ca, Mg, Fe, Zn, Mn, Cu, Ni)

Concentration, Source, and Total Health Risks of Cadmium in Multiple Media in Densely Populated Areas, China

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