Role of Aquatic Macrophytes in Biogeochemical Cycling of Heavy Metals, Relevance to Soil-Sediment Continuum Detoxification and Ecosystem Health

2011 ◽  
pp. 345-368 ◽  
Author(s):  
Przemysław Malec ◽  
Beata Mysliwa-Kurdziel ◽  
M. N. V. Prasad ◽  
Andrzej Waloszek ◽  
Kazimierz Strzałka
Keyword(s):  
Heavy Metals ◽  
Aquatic Macrophytes ◽  
Ecosystem Health ◽  
Biogeochemical Cycling ◽  
Soil Sediment

Heavy Metals Uptake from Aqueous Effluents by Novel Adsorbent derived from Tannin Extracts Role of Tannin Source

2011 ◽  
Author(s):  
Jesús Sánchez-Martín ◽  
Víctor Encinas-Sánchez ◽  
Jesús Beltrán-Heredia
Keyword(s):  
Heavy Metals ◽  
Aqueous Effluents ◽  
Heavy Metals Uptake

Role of high sensitivity C - Reactive protein and some of heavy metals in patients with rheumatoid arthritis

2020 ◽  
Vol 23 (16) ◽  
Author(s):  
Nashwan S. Albabawaty ◽  
Ali Y. Majid ◽  
Mohammed H. Alosami ◽  
Halla G. Mahmood
Keyword(s):  
Rheumatoid Arthritis ◽  
Heavy Metals ◽  
High Sensitivity ◽  
C Reactive Protein ◽  
Reactive Protein

Integrated interrelationship of sewage sludges with absorbing complex of river Miass drainage area

2014 ◽  
Vol 9 (4) ◽  
pp. 441-444
Author(s):  
Y. A. Dzhenis ◽  
I. I. Tuber
Keyword(s):  
Heavy Metals ◽  
Natural Waters ◽  
Drainage Area ◽  
Sewage Sludges

Soil is a powerful and active absorber of many substances, assumes the pressure of industrial and municipal emissions and waste, and performs the important role of a buffer and a detoxicant. It accumulates heavy metals, pesticides, hydrocarbons and other chemical polluting substances and due to the soil absorbing complex (SAC) strongly captures and protects natural waters and the atmosphere from harm. Applying sewage sludges in our research will enable us to strengthen the capacity of SAC and to reduce the toxicity of heavy metals when they enter a reservoir via a drain from anthropogenically polluted territory.

Variations in Mineral/heavy metals profiling and preventive role of trichomes in Peach Fruits treated with CaC2

2020 ◽  
Vol 23 ◽  
Author(s):  
Muhammad Irfan ◽  
Safdar Abbas ◽  
Beenish Jehan Azhar ◽  
Shakeel Ahmad ◽  
Hafsa Muhammad ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Nutritional Value ◽  
Fine Powder ◽  
Calcium Carbide ◽  
Control Group ◽  
Tandem Accelerator ◽  
Health Promoting ◽  
Elemental Profiling

Background: Phytonutrients in peach fruits have health promoting antioxidants against various chronic diseases. However, there is no extensive data to show the nutritional values of Local peach cultivars after post-harvest treatments. Objective: Mainly this study was objective to determine the effect of calcium carbide on nutritional value and quality of fruits of Pakistani peach cultivars. Methods: The peach fruits were collected from three different peach orchids of KPK and the fruits were divided into 4 groups while 5th group was collected from local fruit shop. Each experimental group was treated with different concentration of calcium carbide whereas control group was not treated. The peel and pulp samples were oven dried and ground to fine powder separately. The elemental compositions were determined using Particle Induced X-ray emission and Pelletron Tandem Accelerator. Result: Sixteen elements were identified in peach fruits and the elements were Al, P, S, Cl, K, Ca, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, and Se. In peel, concentration of some elements increased or decreased after treatment with CaC2 while in pulp the conc. of nearly all detected elements was increased in treated samples. We found significantly high amount of heavy metals traces including As, Se, Co, Si, and P in peach fruits treated with CaC2. Interestingly, the presence of trichomes in peach skin prevents the transfer of these heavy metals deep into the pulp which was also verified by the elemental profiling of nectarines. Conclusion: Conclusively, the artificial ripening with CaC2 changed the nutritional value of peach fruits that has higher health risks if consume with the peel. According to our best knowledge, this is the first report that highlights the effects of CaC2 which deteriorate the nutritional value of peach fruits in Pakistan.

Role of potassium transporter KUP8 in plant responses to heavy metals

2021 ◽  
Author(s):  
María Sanz‐Fernández ◽  
Alejandro Rodríguez‐González ◽  
Luisa M. Sandalio ◽  
María C. Romero‐Puertas
Keyword(s):  
Heavy Metals ◽  
Plant Responses ◽  
Potassium Transporter

scholarly journals Biomonitoring of Heavy Metals: The Unexplored Role of Marine Sessile Taxa

2021 ◽  
Vol 11 (2) ◽  
pp. 580
Author(s):  
Camilla Roveta ◽  
Anna Annibaldi ◽  
Afghan Afghan ◽  
Barbara Calcinai ◽  
Cristina Gioia Di Camillo ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Current Knowledge ◽  
Marine Species ◽  
Shallow Waters ◽  
Anthropogenic Inputs ◽  
Current Review ◽  
European Water ◽  
To Receive ◽  
Sessile Organisms

Coastal areas are known to receive significant anthropogenic inputs, mainly deriving from metropolitan areas, industries, and activities related to tourism. Among these inputs, some trace elements are listed as priority pollutants in the European Water Framework Directive, due to their ability to bioaccumulate in organisms. Many studies have been conducted on heavy metals (HMs) accumulation and on their possible effects on different edible marine species. While the most studied sessile organisms are bivalves, in the current review, we focus our attention on other sessile taxa (sponges, cnidarians, bryozoans, polychaetes, cirripeds, and tunicates), proposed as bioindicators in coastal shallow waters. Although their potential as bioindicator tools has been repeatedly highlighted in the literature, these organisms are still poorly investigated and considered for monitoring. In this context, we analyze the available literature about this topic, in order to summarize the current knowledge and identify possible applications of these organisms in a bioremediation scenario.

The Crucial Role of Heavy Metals on the Interaction of Engineered Nanoparticles with Polystyrene Microplastics

2021 ◽  
pp. 117317
Author(s):  
Wai-Kit Ho ◽  
Kelvin Sze-Yin Leung
Keyword(s):  
Heavy Metals ◽  
Crucial Role ◽  
Engineered Nanoparticles

scholarly journals Metal(loid) speciation and transformation by aerobic methanotrophs

Microbiome ◽  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Obulisamy Parthiba Karthikeyan ◽  
Thomas J. Smith ◽  
Shamsudeen Umar Dandare ◽  
Kamaludeen Sara Parwin ◽  
Heetasmin Singh ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Ecosystem Health ◽  
Toxic Metal ◽  
Industrial Effluents ◽  
Environmental Cost ◽  
Toxic Heavy Metal ◽  
Food Web Interactions ◽  
Climate Regulation ◽  
Aerobic Methanotrophs ◽  
Long Term Impact

AbstractManufacturing and resource industries are the key drivers for economic growth with a huge environmental cost (e.g. discharge of industrial effluents and post-mining substrates). Pollutants from waste streams, either organic or inorganic (e.g. heavy metals), are prone to interact with their physical environment that not only affects the ecosystem health but also the livelihood of local communities. Unlike organic pollutants, heavy metals or trace metals (e.g. chromium, mercury) are non-biodegradable, bioaccumulate through food-web interactions and are likely to have a long-term impact on ecosystem health. Microorganisms provide varied ecosystem services including climate regulation, purification of groundwater, rehabilitation of contaminated sites by detoxifying pollutants. Recent studies have highlighted the potential of methanotrophs, a group of bacteria that can use methane as a sole carbon and energy source, to transform toxic metal (loids) such as chromium, mercury and selenium. In this review, we synthesise recent advances in the role of essential metals (e.g. copper) for methanotroph activity, uptake mechanisms alongside their potential to transform toxic heavy metal (loids). Case studies are presented on chromium, selenium and mercury pollution from the tanneries, coal burning and artisanal gold mining, respectively, which are particular problems in the developing economy that we propose may be suitable for remediation by methanotrophs.

scholarly journals Petrobactin, a siderophore produced by Alteromonas, mediates community iron acquisition in the global ocean

2021 ◽  
Author(s):  
Lauren E. Manck ◽  
Jiwoon Park ◽  
Benjamin J. Tully ◽  
Alfonso M. Poire ◽  
Randelle M. Bundy ◽  
...  
Keyword(s):  
Biosynthetic Pathway ◽  
Iron Acquisition ◽  
Biogeochemical Cycling ◽  
Iron Bioavailability ◽  
Siderophore Production ◽  
Global Ocean ◽  
The North ◽  
The North Pacific ◽  
Alteromonas Macleodii

AbstractIt is now widely accepted that siderophores play a role in marine iron biogeochemical cycling. However, the mechanisms by which siderophores affect the availability of iron from specific sources and the resulting significance of these processes on iron biogeochemical cycling as a whole have remained largely untested. In this study, we develop a model system for testing the effects of siderophore production on iron bioavailability using the marine copiotroph Alteromonas macleodii ATCC 27126. Through the generation of the knockout cell line ΔasbB::kmr, which lacks siderophore biosynthetic capabilities, we demonstrate that the production of the siderophore petrobactin enables the acquisition of iron from mineral sources and weaker iron-ligand complexes. Notably, the utilization of lithogenic iron, such as that from atmospheric dust, indicates a significant role for siderophores in the incorporation of new iron into marine systems. We have also detected petrobactin, a photoreactive siderophore, directly from seawater in the mid-latitudes of the North Pacific and have identified the biosynthetic pathway for petrobactin in bacterial metagenome-assembled genomes widely distributed across the global ocean. Together, these results improve our mechanistic understanding of the role of siderophore production in iron biogeochemical cycling in the marine environment wherein iron speciation, bioavailability, and residence time can be directly influenced by microbial activities.

The role of colonic sulphate-reducing bacteria in the pharmacology of heavy metals

1994 ◽  
Vol 3 (4) ◽  
pp. 357-360
Author(s):  
L Bolt ◽  
D C Ellwood ◽  
M J Hill ◽  
S Wootton ◽  
J H P Watson
Keyword(s):  
Heavy Metals ◽  
Sulphate Reducing Bacteria ◽  
Reducing Bacteria
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