Remediation of Nickel-Contaminated Soil by<i>Brassica juncea</i>L. cv. T-59 and Effect of the Metal on Some Metabolic Aspects of the Plant

Sainger, Manish; Sharma, Asha; Bauddh, Kuldeep; Sainger, Poonam Ahlawat; Singh, Rana Pratap

doi:10.1080/10889868.2014.888393

Cited by 12 publications

(4 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact, some researchers have reported that the positive effects exerted by PAs on plants under HM stress might not be related to direct metal chelation. For instance, the exposure of Indian mustard plants to high levels of Ni (up to 8 mM) led to an increased activity of DAO, supporting the connection between PAs catabolism and Ni‐stress, but the authors suggested that PAs did not play a role as chelating agents for Ni (Sainger, Sharma, Bauddh, Sainger, & Singh, 2014). Supporting this comes the fact that exogenous Spd applied to detached leaves of wheat exposed to Cd and Cu led to enhanced protection of membrane integrity, through lipid stabilisation and prevented the leakage of solutes under conditions of Cd‐ or Cu‐induced oxidative damage (Groppa et al, 2007).…”

Section: The Involvement Of Pas On Hm Bioaccumulation and Phytoremedimentioning

confidence: 98%

Polyamines as key regulatory players in plants under metal stress—A way for an enhanced tolerance

Spormann

Soares

Teixeira

et al. 2021

Annals of Applied Biology

View full text Add to dashboard Cite

Polyamine (PA) metabolism and functions have started to raise attention from plant scientists in the last years. PAs have been investigated for their involvement in plant cell signalling and protection, proving that alterations in their endogenous levels can affect plant growth, development and survival. The recognised roles of PAs in metal‐stressed plants are presented and discussed on a “case‐study” basis, for each metal. Bearing in mind that the contamination of soils by heavy metals (HMs) is a growing problem worldwide, it is important to find efficient mechanisms through which agricultural productivity and food quality are safeguarded in a scenario of increased pollution. Making cultivars more tolerant to HM‐stress, capable of detoxifying or accumulating them safely, is a goal that will most certainly benefit from researching the functions and applicability of PAs. To date, plant PAs have been recognised for their roles as membrane‐, protein‐ and nucleic acid‐stabilisers, as protectors of cellular integrity and photosynthetic machinery, as direct and indirect signalling agents, and as emerging members of the non‐enzymatic antioxidant system. Moreover, PAs are not only important in normal plant developmental processes but have also been suggested to induce stress priming, to act as epigenetic regulators of gene expression and to enhance the detoxification and vacuolar compartmentalization of HMs. Although the stress‐ameliorating effects of PAs have been widely studied for several abiotic stresses, not much is known regarding their effects on metal induced‐stress, except for Cd. This review summarises the available work on the effects of PAs in plants exposed to Cu, Cd, Fe, Mn, Cr, Ni, Hg, Al, Pb and Zn.

show abstract

Section: The Involvement Of Pas On Hm Bioaccumulation and Phytoremedimentioning

confidence: 98%

Polyamines as key regulatory players in plants under metal stress—A way for an enhanced tolerance

Spormann

Soares

Teixeira

et al. 2021

Annals of Applied Biology

View full text Add to dashboard Cite

show abstract

“…In the first group of methods, pollutants travel from the solid phase to the sediment solution, while in the second group, they are retained in the solid phase (recommended methods) by changing the properties of the sediment (methods not recommended due to the risk to the environment) or a combination of these two methods (Ou et al, 2018;Chen et al, 2020). Considering Ni and Zn, using synthetic zeolites with high sorption capacity (in the form of briquettes that immobilize easily soluble forms of metals accumulated in the sediment) (Ali et al, 2019;Cataldo et al, 2021;Szerement et al, 2021), phytoremediation using plants that accumulate large amounts of such elements in their tissues without a noticeable phytotoxic effect (hyperaccumulators, e.g., energy willow) (Giordani et al, 2005;Sainger et al, 2014;Wu et al, 2021), and electrokinetic methods using the electric field generated by the flow of current, as a result of which the pollutants travel toward the appropriate electrodes on which they precipitate (Saleem et al, 2011;Hawal et al, 2021;Kamal et al, 2021), are recommended.…”

Section: Metalsmentioning

confidence: 99%

Assessing the Impact of a Hydropower Plant on Changes in the Properties of the Sediment of the Bystrzyca River in Poland

Tomczyk

Wiatkowski

Gałka

et al. 2022

Front. Environ. Sci.

View full text Add to dashboard Cite

This study aimed to assess the impact of a hydropower plant (HP) on the Bystrzyca River (left tributary of the Odra River, Poland) on selected parameters of the bottom sediment within this hydrotechnical structure. The following parameters were examined as part of the analyses: particle size distribution, pH, electrical conductivity (EC), and concentrations of Cd, Cu, Cr, Ni, Pb and Zn. Field studies were carried out upstream and downstream of the HP and at reference points. In addition, the risk of heavy metals in aquatic organisms was assessed using an ecotoxicological method. Based on the Wilcoxon signed-rank test, it was found that the HP influenced all of the parameters tested, except pH. Comparing the points closest to and downstream of the HP, an increase in the average grain diameter of D50 (on average by 750%), and a decrease in the concentrations of most heavy metals: Ni (271%), Zn (216%), Cu (163%), Cr (83.0%), and Cd (74.2%), was observed. The ecotoxicological classification of heavy metal concentrations in sediments indicates, in most cases, little or no impact on aquatic organisms; the values of Ni and Zn in some samples upstream of the HP are exceptions, where remediation using synthetic zeolites, metal accumulation plants, or by electrokinetic methods, is necessary. Fine-grained fractions dominate the clays and sandy clays upstream of the hydropower plants, while sands, sandy clay loams, or sandy clays are dominated downstream. Frequent occurrence of skeletal fractions (>2.0 mm) was observed downstream, i.e., an average of 23.30% in each sample compared to 1.82% upstream of the HP, which is mainly due to greater anthropogenic pressure, especially tourism. The dominance of fine-grained fractions upstream of the HPs favors the accumulation of metals due to the high sorption capacity of these fractions. When comparing the analyzed groups of points, the average pH values are arranged in the following sequence: upstream HP (U) > downstream HP (D) > reference points (R), while EC has opposite values (i.e., U < D < R). This study may support sustainable sediment management and may allow for the development of recommendations related to the rational management of HPs.

show abstract

“…In order to evaluate the phytotoxic effects, the lengths of the roots and shoots of plants subjected to different concentrations of pollutants are measured. The tolerance index or elongation rate is calculated by relating the lengths of the roots/shoots of the pollutant samples to the lengths of the roots/shoots of the blank sample [27,28] (Eq. 3).…”

Section: Tolerance Index or Elongation Rate For Roots And Shoots (Er %)mentioning

confidence: 99%

Untitled

2021

AnnalsARSciPhysChem

View full text Add to dashboard Cite

Rapid industrialization along with the use of modern practices in agriculture led to the discharge into the environment of various pollutants from which metals and metalloids are the most identified. The presence of metals in soil affects soil fertility, the growth and development of plants, and finally causing different negative effects on human health such respiratory problems, damage to endocrine and nervous systems and other dysfunction. Over time, various techniques have been used to remove pollutants from contaminated media, but most of these techniques are expensive, produce secondary contaminants and modify the structure and fertility of the soil. Thus, in recent years considerable attention has been accorded to biological methods. Plants and microorganisms may exhibit different behavior and degree of tolerance in the presence of metals.

show abstract

Remediation of Nickel-Contaminated Soil byBrassica junceaL. cv. T-59 and Effect of the Metal on Some Metabolic Aspects of the Plant

Cited by 12 publications

References 48 publications

Polyamines as key regulatory players in plants under metal stress—A way for an enhanced tolerance

Polyamines as key regulatory players in plants under metal stress—A way for an enhanced tolerance

Assessing the Impact of a Hydropower Plant on Changes in the Properties of the Sediment of the Bystrzyca River in Poland

Untitled

Contact Info

Product

Resources

About