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Mg2+ reduces biofilm quantity in Acidithiobacillus ferrooxidans through inhibiting Type IV pili formation

Overview of attention for article published in FEMS Microbiology Letters, February 2018
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Title
Mg2+ reduces biofilm quantity in Acidithiobacillus ferrooxidans through inhibiting Type IV pili formation
Published in
FEMS Microbiology Letters, February 2018
DOI 10.1093/femsle/fnx266
Pubmed ID
Authors

Deping Tang, Qiyu Gao, Yang Zhao, Yang Li, Peng Chen, Jianping Zhou, Ruixiang Xu, Zhengrong Wu, Yuandong Xu, Hongyu Li

Abstract

Bioleaching is a promising process for 350 million tons Jinchuan low grade pentlandite. But high concentration of Mg2+ is harmful to bioleaching microorganisms. Interestingly, biofilm formation can improve leaching rate. Thus, it is actual necessary to investigate the effect of Mg2+ stress on Acidithiobacillus ferrooxidans biofilms formatiom. In this study, we found that 0.1 and 0.5M Mg2+ stress significantly reduced the total biomass of biofilm in a dose-dependent manner. The observation results of EPS and bacteria using Confocal Laser Scanning Microscopy showed the biofilm became thinner and looser under Mg2+ stress. Whereas, 0.1 and 0.5M Mg2+ stress had no remarkable effect on the bacterial viability. The attachment rate of Acidithiobacillus ferrooxidans to pentlandite was reduced by Mg2+ stress. Furthermore, Sliding motility, twitching motility and the gene expression level of pilV and pilW were inhibited under Mg2+ stress. These results suggested Mg2+ reduced biofilm formation through inhibiting pilV and pilW gene expression, decreasing Type IV pili formation, and then attenuating the ability of attachment, subduing the active expansion of biofilms mediated by twitching motility. This study provided more information about the effect of Mg2+ stress on biofilm formation and may be useful for increasing the leaching rate in low grade pentlandit.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 11 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 11 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 5 45%
Student > Doctoral Student 3 27%
Student > Bachelor 2 18%
Unspecified 1 9%
Readers by discipline Count As %
Agricultural and Biological Sciences 3 27%
Biochemistry, Genetics and Molecular Biology 3 27%
Environmental Science 1 9%
Unspecified 1 9%
Immunology and Microbiology 1 9%
Other 2 18%

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 February 2018.
All research outputs
#11,083,626
of 12,465,602 outputs
Outputs from FEMS Microbiology Letters
#2,121
of 2,316 outputs
Outputs of similar age
#287,424
of 339,770 outputs
Outputs of similar age from FEMS Microbiology Letters
#51
of 60 outputs
Altmetric has tracked 12,465,602 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,316 research outputs from this source. They receive a mean Attention Score of 3.9. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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We're also able to compare this research output to 60 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.