Title |
Overexpression of Outer Membrane Protein X (OmpX) Compensates for the Effect of TolC Inactivation on Biofilm Formation and Curli Production in Extraintestinal Pathogenic Escherichia coli (ExPEC)
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Published in |
Frontiers in Cellular and Infection Microbiology, June 2018
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DOI | 10.3389/fcimb.2018.00208 |
Pubmed ID | |
Authors |
Binyou Li, Qi Huang, Ailian Cui, Xueling Liu, Bo Hou, Liyuan Zhang, Mei Liu, Xianrong Meng, Shaowen Li |
Abstract |
Our previous study showed that the inactivation of the efflux pump TolC could abolish biofilm formation and curli production of extraintestinal pathogenic Escherichia coli (ExPEC) strain PPECC42 under hyper-osmotic conditions. In this study we investigated the role of OmpX in biofilm formation and curli production of ExPEC PPECC42. Our data showed that OmpX disruption or overexpression didn't significantly affect the biofilm formation and curli production of the wild-type strain. However, in the tolC-deleted mutant, overexpressing OmpX suppressed the effect of TolC inactivation on ExPEC biofilm formation and curli production under hyper-osmotic growth conditions. Real-time qRT-PCR confirmed that OmpX overexpression affected curli production by regulating the transcription of the curli biosynthesis-related genes in the ΔtolC strain. Our findings suggest that OmpX is involved in biofilm formation and curli production. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Switzerland | 2 | 33% |
India | 2 | 33% |
United Kingdom | 1 | 17% |
Unknown | 1 | 17% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 4 | 67% |
Scientists | 2 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 32 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 8 | 25% |
Student > Master | 5 | 16% |
Researcher | 4 | 13% |
Student > Bachelor | 3 | 9% |
Professor | 1 | 3% |
Other | 1 | 3% |
Unknown | 10 | 31% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 6 | 19% |
Biochemistry, Genetics and Molecular Biology | 6 | 19% |
Immunology and Microbiology | 5 | 16% |
Veterinary Science and Veterinary Medicine | 1 | 3% |
Physics and Astronomy | 1 | 3% |
Other | 3 | 9% |
Unknown | 10 | 31% |