EFFECTS OF HEAVY METALS ON Lepidium sativum GERMINATION AND GROWTH

Pavel, Vasile Lucian; Sobariu, Dana Luminita; Diaconu, Mariana; Stătescu, Florian; Gavrilescu, Maria

doi:10.30638/eemj.2013.089

Cited by 45 publications

(17 citation statements)

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“…In general, the decrease in phytotoxicity during composting results from the degradation of phytotoxic substances by microorganisms [51]. The present study showed that the growth of the roots of L. perenne was slightly stimulated for a compost concentration of 25%, indicating the positive impact of this material on plant growth.…”

Section: Phytotoxicity Evaluation Of Compostmentioning

confidence: 54%

Pilot Scale Use of Compost Combined with Sorbents to Phytostabilize Ni-Contaminated Soil Using Lolium perenne L.

Radziemska

Vaverková

Mazur

2017

Waste Biomass Valor

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Purpose An experiment was conducted to evaluate the potential use of a combination of food waste compost with sorbents as immobilizing agents to aid the phytostabilization of Ni-contaminated soil, using Lolium perenne L. (L. perenne). Methods The content of Ni in plants, i.e. total and extracted by 0.01 M CaCl 2 , was determined using the spectrophotometry method. Tests for the phytotoxicity of food waste compost were carried out using Phytotoxkit ™ tests. Results The compost phytotoxicity tests showed that the growth of the roots of L. perenne was slightly stimulated for a compost concentration of 25%, showing the positive impact of this material on plant growth. The biomass of L. perenne in particular organs, Ni content and the properties of soil depended on the dose of a Ni contaminant and the type of mineral and organic mixture incorporated into the soil. Conclusions Ni accumulated predominantly in the roots of the L. perenne. The greatest increase pH was observed after compost with chalcedonite mixture was added to the soil. The application of mineral and organic mixture, containing compost from food wastes and chalcedonite as a soil amendment, tended to reduce the soil total and mobile fraction of Ni more in comparison to the un-amended soil. Graphical AbstractKeywords Aided phytostabilization · Nickel contaminated soil · Food waste compost · Sorbents Statement of noveltyProblems concerning food waste management and disposal worldwide are currently among the most difficult and most topical issues in the organized waste management system. Apart from the least appropriate placing of food waste in landfills, the methods for disposal/recycling of food waste are the production of animal feed and composting. It is considered that the compost may be recycled for the removal of heavy metals from contaminated soils through the use of organic acids, microorganisms and nutrients found in composts. In this manuscript, we show that the mixture of compost from food waste and mineral sorbents (chalcedonite, halloysite), are a promising amendments for co-remediation methods of nickel contaminated soils. These novel soil amendments could be used for enhanced phytostabilization methods.

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Section: Phytotoxicity Evaluation Of Compostmentioning

confidence: 54%

Pilot Scale Use of Compost Combined with Sorbents to Phytostabilize Ni-Contaminated Soil Using Lolium perenne L.

Radziemska

Vaverková

Mazur

2017

Waste Biomass Valor

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“…Germination is one of the first stages of seed contact with a stress factor, making it a kind of sensitivity index and measure of tolerance to chemical and physical conditions of the rhizosphere [ 49 , 50 , 51 ]. During germination, the phytotoxicity of Cu and accompanying heavy metals depends on their concentration levels [ 52 , 53 , 54 ] ( Figure 1 ). Excesses cause oxidative stress by activating reactive oxygen species and inhibiting catalase activity [ 55 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Natural Sorbents on the Germination and Early Growth of Grasses on Soils Contaminated by Potentially Toxic Elements

Turisová

Kviatková

Możdżeń

et al. 2020

Plants

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The reclamation of abandoned mining heaps rich in potentially toxic elements (PTEs) is critical for the environment. We carried out a laboratory experiment studying the effects of the addition of four natural sorbents (biochar, bentonite, chicken manure and organo-zeolitic substrate) to soils contaminated with PTEs, predominantly Cu, As and Sb, on the germination and growth of the autochthonous grasses Agrostis capillaris, A. stolonifera, Festuca rubra and Poa pratensis. The experiment used Petri dish tests with water extracts of contaminated soil and soil neutralised with the four sorbents. Standard indexes of the germination process were used (germination percentage, time required for 50% germination index, speed of emergence), and different values were found depending on the plant species and sorbent used. However, the percentage of seeds germinating was lower for each sorbent compared to the control (distilled water). The fresh mass values were positively stimulated by all sorbents. Electrolyte leakage was the highest in seedlings watered with an extract of untreated soil from the heap compared to extracts from treated soils and the control. This can be interpreted as eliminating the harmful effects of increased potentially toxic element (PTE) contents by sorbents, which can be useful in remediation processes.

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“…By accumulation, metal ions are retained in plant cells in a non-toxic form. Exclusion involves falling leaves to remove accumulated ions or metal complexes [7,30,61]. Plants extract from the soil and bioaccumulate the fraction of heavy metals that can be mobilized from the soil, the so-called available fraction, which confers to metals the property named metal bioavailability, i.e.…”

Section: Heavy Metals Bioavailability For Medicinal Plantsmentioning

confidence: 99%

Heavy Metal Contamination of Medicinal Plants and Potential Implications on Human Health

Asiminicesei¹,

Vasilachi²

2020

Rev. Chim.

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This survey focuses on the problem of medicinal plants contamination due to environmental pollution produced by many different industrial activities and atmospheric deposition of some toxic compounds. This analysis is important since plants can easily absorb organic and inorganic compounds from all environmental compartments (water, soil, air), which can enter and be transferred in the trophic chain, up to humans. Medicinal plants are relevant for study in relation with their interactions with different contaminants, in particular those inorganic persistent as heavy metals, because they are used in entire world for their beneficial properties, and represent a significant part of traditional medicine. According to World Health Organization (WHO), 65-80% of world`s population depends on herbal products as the primary form of health care. Frequent use of medicinal plants to improve health, in the context of current pollution, requires special attention, since they can contain heavy metals in their structures, which can generate hazards and risks on human health throughout the subsequent consumption of contaminated medicinal plants as teas, other drinks, cosmetics.

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EFFECTS OF HEAVY METALS ON Lepidium sativum GERMINATION AND GROWTH

Cited by 45 publications

References 0 publications

Pilot Scale Use of Compost Combined with Sorbents to Phytostabilize Ni-Contaminated Soil Using Lolium perenne L.

Pilot Scale Use of Compost Combined with Sorbents to Phytostabilize Ni-Contaminated Soil Using Lolium perenne L.

Effects of Natural Sorbents on the Germination and Early Growth of Grasses on Soils Contaminated by Potentially Toxic Elements

Heavy Metal Contamination of Medicinal Plants and Potential Implications on Human Health

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