JEMI Volume 17

JEMI
Volume 17
Fall 2012 / Winter 2013

Physiology and Metabolism

AcrA and TolC are important Efflux Components in the development of low level Adaptive Aminoglycoside Resistance in Escherichia coli K-12 Following Sub-inhibitory Kanamycin Pre-Treatment
Sara Alian, Usman Qazi, and Julie Sou
J. Exp. Microbiol. Immunol. Vol. 17: 1 – 7

Short-term Adaptive Resistance in E. coli K-12 is not dependent on acrD, acrA and tolC
Kevin Lee, Qiaochu Lin, Andrew Low, and Lisa Luo
J. Exp. Microbiol. Immunol. Vol. 17: 8 – 13

AcrD-Dependent Kanamycin-Induced Antibiotic Resistance of Escherichia coli K-12 is not Modulated by the acrAB Repressor, AcrR
Jeremy Dick, Timothy Jayme, Jordan McGarry, and Samuel Meyer
J. Exp. Microbiol. Immunol. Vol. 17: 14 – 18

Treatment of Escherichia coli BW25113 with Subinhibitory Levels of Kanamycin Results in Antibiotic Cross-Resistance and TolC Up-regulation
Xiaocong Guo, Mae Murray, Colin Xiong and Shawn Zhu
J. Exp. Microbiol. Immunol. Vol. 17: 19 – 23

Capsule Formation is Necessary for Kanamycin Tolerance in Escherichia coli K-12
Fatimah Al Zahrani, Morris Huang, Brandent Lam, and Rod Vafaei
J. Exp. Microbiol. Immunol. Vol. 17: 24 – 28

Pretreatment with Sub-minimal Inhibitory Concentration of Kanamycin Increases RpoH Levels in Escherichia coli SC122
Andrei Axenov, Steve Jang, and Marie Jones
J. Exp. Microbiol. Immunol. Vol. 17: 29 – 33

Ampicillin Resistance is Increased in Escherichia coli K12 relA and spoT mutants but Sub-inhibitory Pretreatment Does Not Induce Adaptive Resistance
Natalie Firmino, Jean-Marc Goldsmith and Alexander Morin
J. Exp. Microbiol. Immunol. Vol. 17: 34 – 39

Antibiotic Tolerance in Escherichia coli under Stringent Response Correlates to Increased Catalase Activity
Jennifer Ji, Stephen Kan, Jocelyn Lee, and Summer Lysakowski
J. Exp. Microbiol. Immunol. Vol. 17: 40 – 45

The Genes of dps, relA, and spoT are Each Important in the Resilience of Escherichia coli Exposed to UVA-Radiation during Stringency
Daniel Kuo, Jessie Yu, Nicole Lockyer, and Yu-Chin Peggy Lin
J. Exp. Microbiol. Immunol. Vol. 17: 46 – 50

Reduced Tetracycline Resistance when RpoS is Over-produced through Heat Shock in Escherichia coli
Jasmine Hui, Evelyn Sun, Flamingo Tang, and Ka Ying Wong
J. Exp. Microbiol. Immunol. Vol. 17: 51 – 54

RpoS and PmrA Induced Resistance to Polymyxin B is Independent of arnT Expression in Pseudomonas aeruginosa
David Deng, Michel Phan, Abhinav Sharma, and Méhul Sharma
J. Exp. Microbiol. Immunol. Vol. 17: 55 – 59

Abolition of Individual Antioxidant Enzymes Did Not Affect Antibiotic-mediated Killing of Escherichia coli
Janet Lee, Sophie Wang, Vivien Wei and Dan Wu
J. Exp. Microbiol. Immunol. Vol. 17: 60 – 66

Oxygen Limitation Suppresses Reactive Oxygen Species Formation by Norfloxacin
Sherry Lee, Bryan Lin, Yi Yun Tang and Taixiang Wang
J. Exp. Microbiol. Immunol. Vol. 17: 67 – 72

Regulation of Osmotic Stress by OmpC but not OmpF Increases Kanamycin Resistance in Escherichia coli
Arkhjamil Angeles, Tina Chang, Lauren Coombe, and Trevor Rogers
J. Exp. Microbiol. Immunol. Vol. 17: 73 – 77

Loss of Osmoregulation of OmpC Porin Occurs if Escherichia coli are Deficient in cAMP Receptor Protein
Seo Hyung Joo, Haozhong Situ, Jimmy Wang, and Li Zhu
J. Exp. Microbiol. Immunol. Vol. 17: 78 – 82

Residual Glycogen Metabolism in Escherichia coli is Specific to the Limiting Macronutrient and Varies During Stationary Phase
Thomas Fung, Nicole Kwong, Timo van der Zwan, and Michael Wu
J. Exp. Microbiol. Immunol. Vol. 17: 83 – 87

Genetics and Molecular Biology

Induction of pBAD-ompA Fails to Enhance Conjugation in ompA-Deletion Mutant Escherichia coli Strains Containing the Plasmid
Byron Brook and Arella Wu
J. Exp. Microbiol. Immunol. Vol. 17: 88 – 92

Expression of Wild-Type rcsB Gene Under the pBAD Promoter Restores Capsule Production in Escherichia coli rcsB Mutant and Permits Normal Cell Morphology
Kevin Chi, Young Gong, Yoon Hye Kim, and Jenifer Van
J. Exp. Microbiol. Immunol. Vol. 17: 93 – 98

BaeR, EvgA and CpxR Differentially Regulate the Expression of acrD in Escherichia coli K-12 but Increased acrD Transcription Alone Does Not Demonstrate a Substantial Increase in Adaptive Resistance Against Kanamycin
Wesley Chu, Andre Fallavollita, Wilfred Bobmond Lau, and James Jun Hyoung Park
J. Exp. Microbiol. Immunol. Vol. 17: 99 – 103

Investigation of the pBR322 Exclusion Effect using Putative Rop Mutant pBR322 Plasmid pCAWK
Tammy Kang
J. Exp. Microbiol. Immunol. Vol. 17: 104 – 108

The Study of Exclusion Effect of pBR322 using its rop-inactivated Mutant, During Co-transformation with pBR322 and pUC19: Plasmid Copy Number Does Not Relate to the Exclusion of pBR322.
Shir Yi Toh
J. Exp. Microbiol. Immunol. Vol. 17: 109 – 114

Phage Biology

T4 Bacteriophage Average Burst Size Varies with Escherichia coli B23 Cell Culture Age
Madison Bolger-Munro, Kelvin Cheung, Anne Fang, and Lisa Wang
J. Exp. Microbiol. Immunol. Vol. 17: 115 – 119

Increased Bacteriophage T4 Infectivity in Aging Escherichia coli Biofilms is Not Dependent on OmpC Expression.
Quinn Gentles, Adrian Ireland, Esther Kong, and Danielle Smith
J. Exp. Microbiol. Immunol. Vol. 17: 120 – 124

T4 Bacteriophage Dominates T7 Bacteriophage During Co-infection of Escherichia coli C600
Serena Chan, Rocky Shi, Tiffany Tang, and Melody Wang
J. Exp. Microbiol. Immunol. Vol. 17: 125 – 128

Methods

Primer-Template Mismatch Does Not Contribute to Irreproducibility of PCR Replicates
Jonathan Goodwin
J. Exp. Microbiol. Immunol. Vol. 17: 129 – 132