Clístenes Williams Araújo do Nascimento
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View article: Development and validation of a portable X-ray fluorescence approach for quantifying silicon in plants
Development and validation of a portable X-ray fluorescence approach for quantifying silicon in plants Open
Background and Aims: Portable X-ray fluorescence spectrometry (pXRF) has emerged as a robust analytical approach for elemental determination in plant tissues, enabling rapid, non-destructive, and reagent-free measurements. This study devel…
View article: Beyond ore: Unveiling the hidden potential for developing nickel agromining in Brazil
Beyond ore: Unveiling the hidden potential for developing nickel agromining in Brazil Open
Nickel (Ni) is a critical metal in the global transition to low-carbon technologies, yet conventional extraction through laterite strip-mining imposes severe environmental damage and social costs. As a biotechnological alternative, agromin…
View article: Filter Cake Biochar Reduces Cadmium Bioavailability and Accumulation in Vegetables Grown in Contaminated Soil
Filter Cake Biochar Reduces Cadmium Bioavailability and Accumulation in Vegetables Grown in Contaminated Soil Open
Cadmium (Cd) contamination in agricultural soils poses serious risks to food safety and human health, particularly in regions with acidic soils that favor metal mobility. This study evaluated the effectiveness of filter cake biochar (FCB) …
View article: Testing the Feasibility of Citric Acid-Assisted Nickel Agromining with Tropical and Temperate Hyperaccumulator Plants
Testing the Feasibility of Citric Acid-Assisted Nickel Agromining with Tropical and Temperate Hyperaccumulator Plants Open
The efficiency of using chelating agents in combination with hyperaccumulator species for nickel phytoextraction has yielded mixed results thus far. This study evaluated the effects of citric acid application on metal solubility in ultrama…
View article: Potentially Toxic Elements in Soils, Channel Banks, and Riverbed Sediments of a Watershed Under Agricultural Pressure
Potentially Toxic Elements in Soils, Channel Banks, and Riverbed Sediments of a Watershed Under Agricultural Pressure Open
Anthropogenic activities increase the amount of potentially toxic elements (PTEs) in the environment and consequently affect the quality of soils and water resources. This study aimed to investigate the concentrations, spatial distribution…
View article: Risk Assessment and Source Apportionment of Metal(Oid)S in Urban Playground Soils: A Case Study from Recife, Brazil
Risk Assessment and Source Apportionment of Metal(Oid)S in Urban Playground Soils: A Case Study from Recife, Brazil Open
View article: Impact of silicon fertilization on onion production and quality in the Brazilian semi-arid region
Impact of silicon fertilization on onion production and quality in the Brazilian semi-arid region Open
Abiotic stress is characteristic of the semi-arid region, so fertilization with silicon (Si) can mitigate the damage caused by this stress, increasing yield and improving food quality. In this scenario, this study evaluated the agronomic p…
View article: Mineralogical Control and Landscape Influence on Chromium and Nickel Distribution and Bioavailability in Tropical Ultramafic Soils
Mineralogical Control and Landscape Influence on Chromium and Nickel Distribution and Bioavailability in Tropical Ultramafic Soils Open
View article: Rice straw biochar mitigates metal stress in corn and assists in the phytoattenuation of a slag-contaminated soil
Rice straw biochar mitigates metal stress in corn and assists in the phytoattenuation of a slag-contaminated soil Open
Soils polluted by potentially toxic elements (PTEs) pose a high risk to human health and must be remediated. Applying biochar to such soils can reduce metal bioavailability and phytotoxicity, improving phytoremediation techniques. This stu…
View article: Assessing the phytoextraction of Cd, Pb, and Zn from a slag-contaminated soil by legume species inoculated with rhizobial strains
Assessing the phytoextraction of Cd, Pb, and Zn from a slag-contaminated soil by legume species inoculated with rhizobial strains Open
Metal-polluted soils can pose a severe threat to the environment and need remediation. We assessed the potential of jack bean and mucuna inoculated with rhizobial strains on the phytoremediation of soils contaminated by lead (Pb) smelting …
View article: Rice straw biochar mitigates metal stress in maize and assists in the phytoattenuation of a slag-contaminated soil
Rice straw biochar mitigates metal stress in maize and assists in the phytoattenuation of a slag-contaminated soil Open
Soils polluted by heavy metals soils pose a high risk to human health and must be remediated. Applying biochar to such soils can reduce metal bioavailability and phytotoxicity, improving phytoremediation techniques. This work aimed to asse…
View article: Selenium as an inorganic biostimulant in onion grown in a semi-arid climate
Selenium as an inorganic biostimulant in onion grown in a semi-arid climate Open
The common climatic characteristics in semi-arid regions can cause abiotic stress and be a limiting factor for crops. Under these conditions, the use of beneficial elements such as selenium (Se) is an alternative to mitigate the harmful ef…
View article: Assessing the effects of biochar, sewage sludge, and mineral fertilization on soil characteristics and maize yield
Assessing the effects of biochar, sewage sludge, and mineral fertilization on soil characteristics and maize yield Open
View article: Geochemical background and geopedological interactions of selenium in soils from Piauí state, Northeastern Brazil
Geochemical background and geopedological interactions of selenium in soils from Piauí state, Northeastern Brazil Open
Although Selenium (Se) plays a role as a micronutrient for humans through vegetable consumption, it is also recognized as toxic when present in excessive quantities. Therefore, quantifying Se contents in soils can prevent diseases influenc…
View article: Sugarcane cultivation as a major surface source of sediment in catchments from a coastal zone of Pernambuco, Brazil
Sugarcane cultivation as a major surface source of sediment in catchments from a coastal zone of Pernambuco, Brazil Open
Identifying sediment sources is fundamental for protecting and improving soil and water quality. Conventional fingerprinting studies have often collected sediments at the overall watershed outlet only, resulting in an important spatial sca…
View article: Mineral composition, chlorophyll fluorescence, and enzyme activity of maize cultivars with different tolerance to cadmium
Mineral composition, chlorophyll fluorescence, and enzyme activity of maize cultivars with different tolerance to cadmium Open
View article: The use of a portable X-ray fluorescence spectrometer for measuring nickel in plants: sample preparation and validation
The use of a portable X-ray fluorescence spectrometer for measuring nickel in plants: sample preparation and validation Open
X-ray fluorescence is a fast, costly, and eco-friendly method for elemental analyses. Portable X-ray fluorescence spectrometers (pXRF) have proven instrumental in detecting metals across diverse matrices, including plants. However, sample …
View article: Comparison between Variable-Selection Algorithms in PLS Regression with Near-Infrared Spectroscopy to Predict Selected Metals in Soil
Comparison between Variable-Selection Algorithms in PLS Regression with Near-Infrared Spectroscopy to Predict Selected Metals in Soil Open
Soil is one of the Earth’s most important natural resources. The presence of metals can decrease environmental quality if present in excessive amounts. Analyzing soil metal contents can be costly and time consuming, but near-infrared (NIR)…
View article: Assessing the phytoextraction of cadmium, lead, and zinc from a slag-contaminated soil by legume species inoculated with rhizobial strains
Assessing the phytoextraction of cadmium, lead, and zinc from a slag-contaminated soil by legume species inoculated with rhizobial strains Open
Metal-polluted soils can pose a severe threat to the environment and need remediation. We assessed the potential of jack bean and mucuna inoculated with rhizobial strains on the phytoremediation of soils contaminated by lead (Pb) smelting …
View article: Assessing Heavy Metal Contamination in a Brazilian Metropolis: A Case Study with a Focus on (Bio)Indicators
Assessing Heavy Metal Contamination in a Brazilian Metropolis: A Case Study with a Focus on (Bio)Indicators Open
View article: Phosphorus fractions and microbiological indicators in vineyards soils of a tropical semiarid setting in Brazil
Phosphorus fractions and microbiological indicators in vineyards soils of a tropical semiarid setting in Brazil Open
Brazilian semi-arid tropical is responsible for the production and export of fine table grapes, but the demand for phosphate fertilizers and other agricultural inputs increases the cost of production and threatens local water bodies by lea…
View article: Sediment source apportionment using geochemical composite signatures in a large and polluted river system with a semiarid-coastal interface, Brazil
Sediment source apportionment using geochemical composite signatures in a large and polluted river system with a semiarid-coastal interface, Brazil Open
View article: Effect of Salinity and Silicon Doses on Onion Post-Harvest Quality and Shelf Life
Effect of Salinity and Silicon Doses on Onion Post-Harvest Quality and Shelf Life Open
Salt stress during pre-harvest limits the shelf life and post-harvest quality of produce; however, silicon nutrition can mitigate salt stress in plants. Thus, we evaluated the effects of salinity and fertilization with Si, in pre-harvest, …
View article: NDVI, nutrient accumulation and yield of onion fertilized with amorphous silica in a semiarid setting in Brazil
NDVI, nutrient accumulation and yield of onion fertilized with amorphous silica in a semiarid setting in Brazil Open
Purpose Silicon (Si) can reduce abiotic stresses in plants and increase crop yield in semiarid climates. We aimed to assess the effect of an amorphous silica-based fertilizer (ASF) applied to soil on the yield, mineral nutrition, and healt…
View article: Silicon Application to Soil Increases the Yield and Quality of Table Grapes (Vitis vinifera L.) Grown in a Semiarid Climate of Brazil
Silicon Application to Soil Increases the Yield and Quality of Table Grapes (Vitis vinifera L.) Grown in a Semiarid Climate of Brazil Open
Silicon (Si) acts to reduce biotic and abiotic stresses in plants. Herein, we aimed to assess the impact of an amorphous silica-based fertilizer (ASF) applied to soil on the yield, mineral nutrition, chlorophyll fluorescence, and postharve…
View article: Silicon application to soil increases the yield and quality of table grapes (Vitis vinifera L.) grown in a semiarid climate of Brazil
Silicon application to soil increases the yield and quality of table grapes (Vitis vinifera L.) grown in a semiarid climate of Brazil Open
Purpose: Silicon (Si) acts to reduce biotic and abiotic stresses in plants. Herein, we aimed to assess the impact of an amorphous silica-based fertilizer (ASF) applied to soil on the yield, mineral nutrition, chlorophyll fluorescence, and …
View article: Baseline Concentrations, Source Apportionment, and Probabilistic Risk Assessment of Heavy Metals in Urban Street Dust in Northeast Brazil
Baseline Concentrations, Source Apportionment, and Probabilistic Risk Assessment of Heavy Metals in Urban Street Dust in Northeast Brazil Open
View article: Phylogenetic structure of aquatic plant assemblages in a climate sequence
Phylogenetic structure of aquatic plant assemblages in a climate sequence Open
Floristic studies of aquatic plants and flora associated with aquatic ecosystems carried out in the Neotropical region have demonstrated the predominance and co-occurrence of the same plant families under different climatic conditions. One…
View article: Supplementary Material – Phylogenetic structure of aquatic plant assemblages in a climate sequence
Supplementary Material – Phylogenetic structure of aquatic plant assemblages in a climate sequence Open
Table S1 – Environmental characterization of the study areas during the sampled period, with average annual temperature (Temp.), average annual insolation (Ins.), average annual rainfall (Rainy), average relative humidity of the air (Humi)…
View article: Ultramafic soils and nickel phytomining opportunities: A review
Ultramafic soils and nickel phytomining opportunities: A review Open
Ultramafic soils are originated from ultramafic rocks such as peridotite and serpentinite and are highly enriched in metals (e.g., Ni, Cr, and Co) and depleted in plant nutrients (e.g., P, K, and Ca). Such characteristics make these soils …