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Cadmium resistance and uptake by bacterium, Salmonella enterica 43C, isolated from industrial effluent

Overview of attention for article published in AMB Express, August 2016
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Title
Cadmium resistance and uptake by bacterium, Salmonella enterica 43C, isolated from industrial effluent
Published in
AMB Express, August 2016
DOI 10.1186/s13568-016-0225-9
Pubmed ID
Authors

Zaman Khan, Abdul Rehman, Syed Z. Hussain, Muhammad A. Nisar, Soumble Zulfiqar, Abdul R. Shakoori

Abstract

Cadmium resistant bacterium, isolated from industrial wastewater, was characterized as Salmonella enterica 43C on the basis of biochemical and 16S rRNA ribotyping. It is first ever reported S. enterica 43C bared extreme resistance against heavy metal consortia in order of Pb(2+)>Cd(2+)>As(3+)>Zn(2+)>Cr(6+)>Cu(2+)>Hg(2+). Cd(2+) stress altered growth pattern of the bacterium in time dependent manner. It could remove nearly 57 % Cd(2+) from the medium over a period of 8 days. Kinetic and thermodynamic studies based on various adsorption isotherm models (Langmuir and Freundlich) depicted the Cd(2+) biosorption as spontaneous, feasible and endothermic in nature. Interestingly, the bacterium followed pseudo first order kinetics, making it a good biosorbent for heavy metal ions. The S. enterica 43C Cd(2+) processivity was significantly influenced by temperature, pH, initial Cd(2+) concentration, biomass dosage and co-metal ions. FTIR analysis of the bacterium revealed the active participation of amide and carbonyl moieties in Cd(2+) adsorption confirmed by EDX analysis. Electron micrographs beckoned further surface adsorption and increased bacterial size due to intracellular Cd(2+) accumulation. An overwhelming increase in glutathione and other non-protein thiols levels played a significant role in thriving oxidative stress generated by metal cations. Presence of metallothionein clearly depicted the role of such proteins in bacterial metal resistance mechanism. The present study results clearly declare S. enterica 43C a suitable candidate for green chemistry to bioremediate environmental Cd(2+).

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Mendeley readers

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Geographical breakdown

Country Count As %
Unknown 86 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 12 14%
Student > Ph. D. Student 11 13%
Researcher 9 10%
Student > Master 7 8%
Student > Doctoral Student 6 7%
Other 14 16%
Unknown 27 31%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 16 19%
Agricultural and Biological Sciences 15 17%
Chemistry 7 8%
Environmental Science 5 6%
Immunology and Microbiology 5 6%
Other 8 9%
Unknown 30 35%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 August 2016.
All research outputs
#15,380,722
of 22,881,964 outputs
Outputs from AMB Express
#445
of 1,236 outputs
Outputs of similar age
#238,166
of 367,308 outputs
Outputs of similar age from AMB Express
#27
of 39 outputs
Altmetric has tracked 22,881,964 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,236 research outputs from this source. They receive a mean Attention Score of 2.8. This one is in the 40th percentile – i.e., 40% of its peers scored the same or lower than it.
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We're also able to compare this research output to 39 others from the same source and published within six weeks on either side of this one. This one is in the 2nd percentile – i.e., 2% of its contemporaries scored the same or lower than it.