TY - GEN A1 - Umair, Muhammad A1 - Mohsin, Mashkoor A1 - Ali, Qasim A1 - Qamar, Muhammad U. A1 - Raza, Shahbaz A1 - Ali, Aamir A1 - Guenther, Sebastian A1 - Schierack, Peter T1 - Prevalence and Genetic Relatedness of Extended Spectrum-ß-Lactamase-Producing Escherichia coli Among Humans, Cattle, and Poultry in Pakistan T2 - Microbial drug resistance Y1 - 2019 U6 - https://doi.org/10.1089/mdr.2018.0450 SN - 1931-8448 SN - 1076-6294 VL - 25 IS - 9 SP - 1374 EP - 1381 ER - TY - GEN A1 - Kolenda, Rafał A1 - Burdukiewicz, Michał A1 - Wimonć, Marcjanna A1 - Aleksandrowicz, Adrianna A1 - Ali, Aamir A1 - Szabo, Istvan A1 - Tedin, Karsten A1 - Bartholdson, Scott J. A1 - Pickhard, Derek A1 - Schierack, Peter T1 - Identification of Natural Mutations Responsible for Altered Infection Phenotypes of Salmonella enterica Clinical Isolates by Using Cell Line Infection Screens T2 - Applied and Environmental Microbiology Y1 - 2021 U6 - https://doi.org/10.1128/AEM.02177-20 SN - 1098-5336 VL - 87 IS - 2 ER - TY - GEN A1 - Awan, Asad Bashir A1 - Schiebel, Juliane A1 - Böhm, Alexander A1 - Nitschke, Jörg A1 - Sarwar, Yasra A1 - Schierack, Peter A1 - Ali, Aamir T1 - Association of biofilm formation and cytotoxic potential with multidrug resistance in clinical isolates of Pseudomonas aeruginosa T2 - EXCLI journal Y1 - 2019 SN - 1611-2156 VL - 18 SP - 79 EP - 90 ER - TY - GEN A1 - Khan, Muhammad Moman A1 - Sidorczuk, Katarzyna A1 - Becker, Juliane A1 - Aleksandrowicz, Adrianna A1 - Baraniewicz, Karolina A1 - Ludwig, Christina A1 - Ali, Aamir A1 - Kingsley, Robert A. A1 - Schierack, Peter A1 - Kolenda, Rafał T1 - Characterization of clumpy adhesion of Escherichia coli to human cells and associated factors influencing antibiotic sensitivity T2 - Microbiology Spectrum N2 - Escherichia coli intestinal infection pathotypes are characterized by distinct adhesion patterns, including the recently described clumpy adhesion phenotype. Here, we identify and characterize the genetic factors contributing to the clumpy adhesion of E. coli strain 4972. In this strain, the transcriptome and proteome of adhered bacteria were found to be distinct from planktonic bacteria in the supernatant. A total of 622 genes in the transcriptome were differentially expressed in bacteria present in clumps relative to the planktonic bacteria. Seven genes targeted for disruption had variable distribution in different pathotypes and nonpathogenic E. coli, with the pilV and spnT genes being the least frequent or absent from most groups. Deletion (Δ) of five differentially expressed genes, flgH, ffp, pilV, spnT, and yggT, affected motility, adhesion, or antibiotic stress. ΔflgH exhibited 80% decrease and ΔyggT depicted 184% increase in adhesion, and upon complementation, adhesion was significantly reduced to 13%. ΔflgH lost motility and was regenerated when complemented, whereas Δffp had significantly increased motility, and reintroduction of the same gene reduced it to the wild-type level. The clumps produced by Δffp and ΔspnT were more resistant and protected the bacteria, with ΔspnT showing the best clump formation in terms of ampicillin stress protection. ΔyggT had the lowest tolerance to gentamicin, where the antibiotic stress completely eliminated the bacteria. Overall, we were able to investigate the influence of clump formation on cell surface adhesion and antimicrobial tolerance, with the contribution of several factors crucial to clump formation on susceptibility to the selected antibiotics. KW - Infectious Diseases KW - Cell Biology KW - Microbiology (medical) KW - Genetics KW - General Immunology and Microbiology KW - Ecology KW - Physiology Y1 - 2024 U6 - https://doi.org/10.1128/spectrum.02606-23 SN - 2165-0497 ER - TY - GEN A1 - Mohsin, Mashkoor A1 - Raza, Shahbaz A1 - Roschanski, Nicole A1 - Guenther, Sebastian A1 - Ali, Aamir A1 - Schierack, Peter T1 - Description of the First Escherichia coli Clinical Isolate Harboring the Colistin Resistance Gene mcr-1 from the Indian Subcontinent T2 - Antimicrobial Agents and Chemotherapy Y1 - 2016 U6 - https://doi.org/10.1128/AAC.01945-16 SN - 1098-6596 SN - 0066-4804 VL - 61 IS - 1 ER - TY - GEN A1 - Olowe, Olugbenga Adekunle A1 - Adefioye, Olusolabomi J. A1 - Ajayeoba, T. A. A1 - Schiebel, Juliane A1 - Weinreich, Jörg A1 - Ali, Aamir A1 - Burdukiewicz, Michał A1 - Rödiger, Stefan A1 - Schierack, Peter T1 - Phylogenetic grouping and biofilm formation of Multidrug Resistant Escherichia coli Isolates from Humans, Animals and Food products in South-west Nigeria T2 - Scientific African Y1 - 2019 U6 - https://doi.org/10.1016/j.sciaf.2019.e00158 SN - 2468-2276 VL - 6 ER - TY - GEN A1 - Wajid, M. A1 - Awan, Asad Bashir A1 - Saleemi, M. K. A1 - Weinreich, Jörg A1 - Schierack, Peter A1 - Sarwar, Y. A1 - Ali, Aamir T1 - Multiple Drug Resistance and Virulence Profiling of Salmonella enterica Serovars Typhimurium and Enteritidis from Poultry Farms of Faisalabad, Pakistan T2 - Microbial Drug Resistance Y1 - 2019 U6 - https://doi.org/10.1089/mdr.2018.0121 SN - 1931-8448 SN - 1076-6294 VL - 25 IS - 1 SP - 133 EP - 142 ER - TY - GEN A1 - Akhtar, Nasrin A1 - Ghauri, M. A. A1 - Parveen, Sana A1 - Farooq, M. A1 - Ali, Aamir A1 - Schierack, Peter T1 - Comparative Analysis of Draft Genome Sequence of Rhodococcus sp. Eu-32 with Other Rhodococcus Species for Its Taxonomie Status and Sulfur Metabolism Potential T2 - Current microbiology Y1 - 2019 U6 - https://doi.org/10.1007/s00284-019-01737-1 SN - 1432-0991 SN - 0343-8651 VL - 76 IS - 10 SP - 1207 EP - 1214 ER - TY - GEN A1 - Khan, Muhammad Moman A1 - Ali, Aamir A1 - Kolenda, Rafał A1 - Olowe, Olugbenga Adekunle A1 - Weinreich, Jörg A1 - Li, Ganwu A1 - Schierack, Peter T1 - The role of AJB35136 and fdtA genes in biofilm formation by avian pathogenic Escherichia coli T2 - BMC Veterinary Research Y1 - 2023 U6 - https://doi.org/10.1186/s12917-023-03672-7 SN - 1746-6148 VL - 19 ER - TY - GEN A1 - Bartlitz, Christin A1 - Kolenda, Rafał A1 - Chilimoniuk, Jarosław A1 - Grzymajlo, Krzysztof A1 - Rödiger, Stefan A1 - Bauerfeind, Rolf A1 - Ali, Aamir A1 - Tchesnokovag, Veronika A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - Adhesion of Enteropathogenic, Enterotoxigenic, and Commensal Escherichia coli to the Major Zymogen Granule Membrane Glyoprotein 2 T2 - Applied abd Environmental Microbiology Y1 - 2022 U6 - https://doi.org/10.1128/aem.02279-21 SN - 1098-5536 VL - 88 IS - 5 ER - TY - GEN A1 - Ali, Aamir A1 - Kolenda, Rafał A1 - Khan, Muhammad Moman A1 - Weinreich, Jörg A1 - Li, Ganwu A1 - Wieler, Lothar H. A1 - Tedin, Karsten A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - Novel Avian Pathogenic Escherichia coli Genes Responsible for Adhesion to Chicken and Human Cell Lines T2 - Applied and Environmental Microbiology Y1 - 2020 U6 - https://doi.org/10.1128/AEM.01068-20 SN - 1098-5336 VL - 86 IS - 20 ER - TY - GEN A1 - Schiebel, Juliane A1 - Böhm, Alexander A1 - Nitschke, Jörg A1 - Burdukiewicz, Michał A1 - Weinreich, Jörg A1 - Ali, Aamir A1 - Roggenbuck, Dirk A1 - Rödiger, Stefan A1 - Schierack, Peter T1 - Genotypic and phenotypic characteristics in association with biofilm formation in different pathotypes of human clinical Escherichia coli isolates T2 - Applied and Environmental Microbiology Y1 - 2017 U6 - https://doi.org/10.1128/AEM.01660-17 SN - 1098-5336 SN - 0099-2240 VL - 83 IS - 24 ER - TY - GEN A1 - Awan, Asad Bashir A1 - Yan, Aixin A1 - Sarwar, Yasra A1 - Schierack, Peter A1 - Ali, Aamir T1 - Detection of synergistic antimicrobial resistance mechanisms in clinical isolates of Pseudomonas aeruginosa from post-operative wound infections T2 - Applied Microbiology and Biotechnology Y1 - 2021 U6 - https://doi.org/10.1007/s00253-021-11680-6 SN - 1432-0614 VL - 105 IS - 2 SP - 9321 EP - 9332 ER -