نتایج جستجو برای: heavy metal tolerant bacteria

تعداد نتایج: 515180  

2013
Johncy Rani V. Rajeshkannan

Microorganisms play a vital role in heavy metal contaminated soil and wastewater by the mechanisms of biosorption. In this study, heavy metal resistant bacteria were isolated from the effluent samples of an electroplating industry and the biosorption of copper (Cu), cadmium (Cd) and lead (Pb). These isolates were characterized to evaluate their applicability for heavy metal removal from industr...

Journal: :Applied and environmental microbiology 2014
Julius J Medardus Bayleyegn Z Molla Matthew Nicol W Morgan Morrow Paivi J Rajala-Schultz Rudovick Kazwala Wondwossen A Gebreyes

The study aimed to characterize the role of heavy metal micronutrients in swine feed in emergence of heavy-metal-tolerant and multidrug-resistant Salmonella organisms. We conducted a longitudinal study in 36 swine barns over a 2-year period. The feed and fecal levels of Cu(2+) and Zn(2+) were measured. Salmonella was isolated at early and late finishing. MICs of copper sulfate and zinc chloride...

2013
Anna Lenart Katarzyna Wolny-Koładka

The present study aimed to identify the effect of heavy metal concentration and soil pH on the abundance of the selected soil microorganisms within ArcelorMittal Poland steelworks, Cracow. The analysis included 20 soil samples, where the concentration of Fe, Zn, Cd, Pb, Ni, Cu, Mn, Cr and soil pH were evaluated together with the number of mesophilic bacteria, fungi, Actinomycetes and Azotobacte...

Journal: :Ecological applications : a publication of the Ecological Society of America 2007
Donna R Kashian Robert E Zuellig Katharine A Mitchell William H Clements

The ability to tolerate disturbance is a defense strategy that minimizes the effects of damage to fitness and is essential for sustainability of populations, communities, and ecosystems. Despite the apparent benefits of tolerance, there may be an associated cost that results in a deficiency of a system to respond to additional disturbances. Aquatic ecosystems are often exposed to a variety of n...

ژورنال: یافته 2010
بیرجندی, مهدی , جعفری, علی , عسگری, قربان , رستمی, زینب , میر حسینی, سید حامد , کمره ئی, بهرام ,

with industrial and economic growth and different material production that humans gained from natural resources for their comfort and walfare, inwardly introduced toxic material and heavy metal entered environment that there created serious problems for themselves and environment. This study accomplished to determine heavy metal concentration (As, Ba, Cd, Hg, Pb, Cr)in water resources and river...

M. Mohseni

Heavy metal pollution all around the world has become a major environmental concern and the bioremediation of polluted environments is an increasingly popular strategy due to both its efficiency and safety. In this study, a bacterial strain resistant to heavy metal was isolated from metal contaminated sites. Strain MKH2 was removed Pb (II) with 95.06%. This isolate was also resistant to zinc, c...

Journal: :Indian journal of experimental biology 2013
Neha Batta Sanjukta Subudhi Banwari Lal Arundhuti Devi

Lead is one of the four heavy metals that has a profound damaging effects on human health. In the recent past there has been an increasing global concern for development of sustainable bioremediation technologies for detoxification of lead contaminant. Present investigation highlights for lead biosorption by a newly isolated novel bacterial species; Achromobacter sp. TL-3 strain, isolated from ...

2016
Lukasz Drewniak Pawel S. Krawczyk Sebastian Mielnicki Dorota Adamska Adam Sobczak Leszek Lipinski Weronika Burec-Drewniak Aleksandra Sklodowska

Two microbial mats found inside two old (gold and uranium) mines in Zloty Stok and Kowary located in SW Poland seem to form a natural barrier that traps heavy metals leaking from dewatering systems. We performed complex physiological and metagenomic analyses to determine which microorganisms are the main driving agents responsible for self-purification of the mine waters and identify metabolic ...

2014
Manzar Alam Mohd Imran

Study of antibiotic resistance was done among the metal tolerant E. coli isolates from hospital wastewater at Lucknow city. Metal tolerance was determined in terms of visible growth on metal amended plates at their varying concentrations. MICs were also determined among all metal tolerant E. coli isolates. All the isolates showed their MIC in between 100-2000 µg/ml while maximum isolates demons...

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