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عنوان فارسی مقاله:
اثر کبالت و نانوذرات نقره و یونهای بر سلامت کرم Lumbricus rubellus و اجتماع میکروبی مدفوع کرم خاکی و خاک
عنوان انگلیسی مقاله:
Effect of cobalt and silver nanoparticles and ions on Lumbricus rubellus health and on microbial community of earthworm faeces and soil
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Metallic and ionic Ag has a long history of use as an antimicrobial agent in various industries, and is gradually being replaced by Ag nanoparticles (AgNPs) in agrochemicals, food preservatives and storage containers, textiles, personal-care products and laundry additives (Maynard et al., 2006). The use and disposal of materials containing AgNPs and Ag+ allow these potential contaminants to enter the environment. Another matter of interest as possible environmental contaminants are Co nanoparticles (CoNPs), which are used to produce magnetic polymer microspheres, for information storage and energy, as magnetic resonance imaging contrast agents, in cancer therapy and in anaerobic waste water treatment systems (Florencio et al., 1994; Magaye et al., 2012). The AgNPs and CoNPs forms merit study in natural environments, especially the soil ecosystem where they are subject to transformations like aggregation/agglomeration, redox reactions, dissolution, exchange of surface moieties, and reactions with biomacromolecules (Maurer-Jones et al., 2013). The multiple ways that these NPs may be transformed in the soil environment makes it difficult to predict their fate and toxicity to soil biota, which have a central role in sustaining soil fertility and * Corresponding author at: Dipartimento Scienze Agrarie e Forestali, Università productivity.Direct toxicity of Ag and Co to soil microorganisms is expected to reduce microbial activity and alter the biomass of key groups within microbial communities (Dinesh et al., 2012; Shah et al., 2014). However, soil microorganisms do not respond uniformly to NPs (Vittori Antisari et al., 2015), probably because some microbial groups and genera have mechanisms to sequester metallic and ionic compounds or alleviate cellular stress induced by metal exposure (Nies, 1999; Dinesh et al., 2012). The direct toxicity of Ag and Co to higher trophic groups in the soil food web is another factor that could impact microbial communities. For instance, earthworms are ecosystem engineers that consume and reorganize litter through the soil profile (Bernard et al., 2012; Blouin et al., 2013). Earthworm activities can also consistently stimulate bacterial growth, with higher bacterial populations in the earthworm gut and freshly-deposited faeces (Blouin et al., 2013). Earthworms consume fungal spores and defecate them in nutrient-rich faeces, a favourable microsite for microbial growth. As a consequence, during the passage through the digestive tract of the earthworms, ingested soil microorganisms can be selectively altered (Pedersen and Hendriksen, 1993; Sampedro and Whalen, 2007; Thakuria et al., 2010).
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کلمات کلیدی:
Effect of cobalt and silver nanoparticles and ions on Lumbricus ... https://www.deepdyve.com/.../effect-of-cobalt-and-silver-nanoparticles-and-ions-on-l... Read "Effect of cobalt and silver nanoparticles and ions on Lumbricus rubellus health and on microbial community of earthworm faeces and soil, Applied Soil ... Silver Nanoparticles, Ions, and Shape Governing Soil Microbial ... https://www.ncbi.nlm.nih.gov › NCBI › Literature › PubMed Central (PMC) by Y Zhai - 2016 - Cited by 1 - Related articles Jul 25, 2016 - Silver Nanoparticles, Ions, and Shape Governing Soil Microbial Functional ...... Effects of silver nanoparticles (NM-300K) on Lumbricus rubellus ... پاد: Effect of cobalt and silver nanoparticles and ions on Lumbricus ... pad.um.ac.ir/file/view/11773456 - Translate this page Effect of cobalt and silver nanoparticles and ions on Lumbricus rubellus health and on microbial community of earthworm faeces and soil. Effect of cobalt and ... Applied soil ecology - Terkko Navigator https://www.terkko.helsinki.fi/.../15285599_effect-of-cobalt-and-sil... - Translate this page Sep 3, 2016 - Effect of cobalt and silver nanoparticles and ions on Lumbricus rubellus health and on microbial community of earthworm faeces and soil. Soil microbial biomass carbon and fatty acid composition of earthworm ... www.academia.edu/.../Soil_microbial_biomass_carbon_and_fatty_acid_composition_... Microbial biomass engineered nanoparticles (NPs) on soil microbial biomass C carbon . ... (MBC) and on earthworm Lumbricus rubellus. ... The nanoparticles reduced the MBC content in human health and environmental issues (Klaine et al. ... Stable suspensions soil (e.g. organic matter, ionic strength, clay content) ... Life Cycle Analysis of Nanoparticles: Reducing Risk and Liability https://books.google.com/books?isbn=1605950238 Ashok Vaseashta - 2015 - Technology & Engineering Over time, nanosilver can corrode and release ions that can express their toxic, ... the bacteria that cause skin troubles”, but it is also toxic enough to kill healthy cells ... The effect of new pollutants is studied by examining soil microbial biomass, ... basilicum L.) and macro-mesofauna (Folsomia candida, Lumbricus rubellus).
