Effects of soil properties on heavy metal bioavailability and accumulation in crop grains under different farmland use patterns

Xu, Deyang; Shen, Zuorui; Dou, Changming; Dou, Zhiyong; Li, Yang; Gao, Yin; Sun, Qiang

doi:10.1038/s41598-022-13140-1

Cited by 60 publications

(38 citation statements)

References 55 publications

(87 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Factor three added 9.79% to the total variance with significant positive loadings on Fe and EC (Table 7). Thus; reveals the impact of lithogenic factor on the value of the studied soils (Xu et al, 2022). However; during the wet season four principal factors with Eigen values higher than one were identified, these factors contributed 96.36% of the total variance (Table 6).…”

Section: Multivariate Analysis Of the Parameters In The Studied Soilsmentioning

confidence: 89%

Impact of Seasonal Variations and Oil Activities on the Total Concentrations, Geochemical Fractions, And Human Health Problems of Trace Metals in Soils Within the Oil-Bearing Communities of South-South Region of Nigeria

Ebong¹,

Moses²,

Akpabio³

et al. 2022

BJES

View full text Add to dashboard Cite

The impacts of oil activities and seasonal variations on the total concentrations, geochemical fractions, and human health problems of trace metals in soils within oil-bearing communities of Akwa Ibom State, Nigeria were examined. Top soils were obtained from Eket, Onna, Esit Eket, and Ibeno local government areas between January and December, 2017. Samples were also collected from Etinan local government area of the State and used as the Control. The samples and Control were subjected to standard analytical procedures and analysed for their physicochemical properties and total metal concentrations. The modified BCR methods were employed for the speciation of metals. The findings revealed that the pH levels were higher during the dry season while, the electrical conductivity, organic matter, and cation exchange capacity of the studied soils were higher in the rainy season. The total mean concentrations of Pb, As, Cd, Cr, Fe, and V were higher in the dry season whereas, Ni was higher in the wet season. Though, their concentrations were within the acceptable limits. Generally, the concentrations of all the parameters in the studied soils were higher than at the control site. Pb, As, Ni, and V existed predominantly in the reducible fraction, Cd and Cr in acid extractable while, Fe existed mostly in the residual fraction in the studied soils. However, at the control site all the metals except Cd existed mainly in the residual fraction. The study showed that all the studied locations were highly contaminated with these metals and substantial seasonal variations were also recorded for the pollution indices. It was also noted that, seasonal changes and oil activities were the key factors affecting the quality of the studied soils. Daily intake rates for the metals through exposure to soil for both the young and old populations were within their required oral reference doses. The non-carcinogenic risks recorded for both populations were less than one. However, both populations were exposed to high Pb and the younger ones were more susceptible. The study revealed the influence of seasonal change and oil activities on the mobility and toxicity of metals in the studied soils.

show abstract

Section: Multivariate Analysis Of the Parameters In The Studied Soilsmentioning

confidence: 89%

Impact of Seasonal Variations and Oil Activities on the Total Concentrations, Geochemical Fractions, And Human Health Problems of Trace Metals in Soils Within the Oil-Bearing Communities of South-South Region of Nigeria

Ebong¹,

Moses²,

Akpabio³

et al. 2022

BJES

View full text Add to dashboard Cite

show abstract

“…[495][496][497][498][499][500] Another factor that limits its growth and production is the soil contaminated by heavy metals. [501][502][503][504][505][506] Wheat grains have an important protein called gluten, which is necessary for the production of various bakery products and pasta. 507 Normally, wheat is transformed into flour for the production of bread, pasta, biscuits, etc.…”

Section: Pla/wheat Starchmentioning

confidence: 99%

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Silva

Rios

Santana

2023

Polymers from Renewable Resources

View full text Add to dashboard Cite

The limited degradation of synthetic polymers used in food packaging when discarded in the environment is a major concern for society. Therefore, industry and academia have sought to develop biodegradable and eco-friendly materials for single-use in packaging. An interesting alternative for the food industry is biodegradable polymeric films, which is why different biopolymers have been used in the production of sustainable packaging. It is worth mentioning that the use of biodegradable polymers is one of the most successful innovations in the industry to address issues related to the environment. Among the available raw materials, starch extracted from different renewable sources is very promising for this purpose, due to its abundance, low-cost compared to other polymers and ability to produce non-toxic films. However, when used alone, pure starch has many limitations, which can be overcome by developing a mixture with other polymers (polymer blends), preferably from renewable and biodegradable sources, such as poly(lactic acid) (PLA). In this context, the absence of literature reviews evidencing the results of the application of films in foods led us to write this article, given the importance of polymer blends produced with different types of starch (cassava, corn, pea, potato, rice and wheat) and the PLA matrix. According to the results, it is clear that polymer blends based on PLA/Starch for food packaging are very promising, already being part of the industries solutions, aiming to minimize the large volume of plastic waste of petrochemical origin discarded in nature. Obviously, as with any technology, more research is needed to further improve the performance of the films, and while much research has made great strides, there are still limitations that prevent the commercialization of these materials.

show abstract

“…Rice grains actively accumulate HMs from contaminated soil. Soil characteristics are, therefore, regarded as the most significant influencing element [34]. Accumulation of HMs in agricultural soils tends to increase with weathering of metal-enriched rocks and other soil-forming processes [35].…”

Section: Natural and Anthropogenic Sources Of Hm Toxicity In Ricementioning

confidence: 99%

Recent Developments in Rice Molecular Breeding for Tolerance to Heavy Metal Toxicity

et al. 2023

View full text Add to dashboard Cite

Heavy metal toxicity generally refers to the negative impact on the environment, humans, and other living organisms caused by exposure to heavy metals (HMs). Heavy metal poisoning is the accumulation of HMs in the soft tissues of organisms in a toxic amount. HMs bind to certain cells and prevent organs from functioning. Symptoms of HM poisoning can be life-threatening and not only cause irreversible damage to humans and other organisms; but also significantly reduce agricultural yield. Symptoms and physical examination findings associated with HM poisoning vary depending on the metal accumulated. Many HMs, such as zinc, copper, chromium, iron, and manganese, are present at extremely low levels but are essential for the functioning of plants. However, if these metals accumulate in the plants in sufficient concentrations to cause poisoning, serious damage can occur. Rice is consumed around the world as a staple food and incidents of HM pollution often occur in rice-growing areas. In many rice-producing countries, cadmium (Cd), arsenic (As), and lead (Pb) have been recognized as commonly widespread HMs contaminating rice fields worldwide. In addition to mining and irrigation activities, the use of fertilizers and pesticides has also contributed significantly to HM contamination of rice-growing soils around the world. A number of QTLs associated with HM stress signals from various intermediary molecules have been reported to activate various transcription factors (TFs). Some antioxidant enzymes have been studied which contribute to the scavenging of reactive oxygen species, ultimately leading to stress tolerance in rice. Genome engineering and advanced editing techniques have been successfully applied to rice to improve metal tolerance and reduce HM accumulation in grains. In this review article, recent developments and progress in the molecular science for the induction of HM stress tolerance, including reduced metal uptake, compartmentalized transportation, gene-regulated signaling, and reduced accumulation or diversion of HM particles to plant parts other than grains, are discussed in detail, with particular emphasis on rice.

show abstract

Effects of soil properties on heavy metal bioavailability and accumulation in crop grains under different farmland use patterns

Cited by 60 publications

References 55 publications

Impact of Seasonal Variations and Oil Activities on the Total Concentrations, Geochemical Fractions, And Human Health Problems of Trace Metals in Soils Within the Oil-Bearing Communities of South-South Region of Nigeria

Impact of Seasonal Variations and Oil Activities on the Total Concentrations, Geochemical Fractions, And Human Health Problems of Trace Metals in Soils Within the Oil-Bearing Communities of South-South Region of Nigeria

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Recent Developments in Rice Molecular Breeding for Tolerance to Heavy Metal Toxicity

Contact Info

Product

Resources

About