Fengxia Qi - Publications

Affiliations: 
University of California, Los Angeles, Los Angeles, CA 
Area:
Microbiology Biology, Dentistry, Molecular Biology

66 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2017 Zhou P, Li X, Huang IH, Qi F. Veillonellae Catalase Protects the Growth of Fusobacterium nucleatum in Microaerophilic and Streptococcus gordonii-present Environments. Applied and Environmental Microbiology. PMID 28778894 DOI: 10.1128/Aem.01079-17  0.415
2017 Zhou P, Xie G, Li X, Liu J, Qi F. Complete Genome Sequence of Veillonella atypica OK5, the First Transformable Strain in the Species. Genome Announcements. 5. PMID 28572307 DOI: 10.1128/Genomea.00391-17  0.306
2017 Knapp S, Brodal C, Peterson J, Qi F, Kreth J, Merritt J. Natural Competence Is Common among Clinical Isolates of Veillonella parvula and Is Useful for Genetic Manipulation of This Key Member of the Oral Microbiome. Frontiers in Cellular and Infection Microbiology. 7: 139. PMID 28473967 DOI: 10.3389/Fcimb.2017.00139  0.356
2017 Qi F, Kreth J. Methods to Study Antagonistic Activities Among Oral Bacteria. Methods in Molecular Biology (Clifton, N.J.). 1537: 203-218. PMID 27924596 DOI: 10.1007/978-1-4939-6685-1_12  0.341
2016 Zhou P, Li X, Qi F. Identification and characterization of a heme biosynthesis locus in Veillonella. Microbiology (Reading, England). PMID 27566661 DOI: 10.1099/Mic.0.000366  0.43
2016 Esteban Florez FL, Hiers RD, Smart K, Kreth J, Qi F, Merritt J, Khajotia SS. Real-time assessment of Streptococcus mutans biofilm metabolism on resin composite. Dental Materials : Official Publication of the Academy of Dental Materials. PMID 27515531 DOI: 10.1016/J.Dental.2016.07.010  0.304
2015 Zhou P, Liu J, Li X, Takahashi Y, Qi F. The Sialic Acid Binding Protein, Hsa, in Streptococcus gordonii DL1 also Mediates Intergeneric Coaggregation with Veillonella Species. Plos One. 10: e0143898. PMID 26606595 DOI: 10.1371/Journal.Pone.0143898  0.378
2015 Zhou P, Li X, Qi F. Establishment of a counter-selectable markerless mutagenesis system in Veillonella atypica. Journal of Microbiological Methods. 112: 70-2. PMID 25771833 DOI: 10.1016/J.Mimet.2015.03.010  0.356
2015 Chen X, Liu N, Khajotia S, Qi F, Merritt J. RNases J1 and J2 are critical pleiotropic regulators in Streptococcus mutans. Microbiology (Reading, England). 161: 797-806. PMID 25635274 DOI: 10.1099/Mic.0.000039  0.376
2015 Liu N, Niu G, Xie Z, Chen Z, Itzek A, Kreth J, Gillaspy A, Zeng L, Burne R, Qi F, Merritt J. The Streptococcus mutans irvA gene encodes a trans-acting riboregulatory mRNA. Molecular Cell. 57: 179-90. PMID 25574948 DOI: 10.1016/J.Molcel.2014.11.003  0.341
2015 Zhou P, Liu J, Merritt J, Qi F. A YadA-like autotransporter, Hag1 in Veillonella atypica is a multivalent hemagglutinin involved in adherence to oral streptococci, Porphyromonas gingivalis, and human oral buccal cells. Molecular Oral Microbiology. 30: 269-79. PMID 25440509 DOI: 10.1111/Omi.12091  0.429
2014 Yoneda S, Loeser B, Feng J, Dmytryk J, Qi F, Merritt J. Ubiquitous sialometabolism present among oral fusobacteria. Plos One. 9: e99263. PMID 24896093 DOI: 10.1371/Journal.Pone.0099263  0.309
2013 Xie Z, Qi F, Merritt J. Development of a tunable wide-range gene induction system useful for the study of streptococcal toxin-antitoxin systems. Applied and Environmental Microbiology. 79: 6375-84. PMID 23934493 DOI: 10.1128/Aem.02320-13  0.377
2013 Xie Z, Qi F, Merritt J. Cloning-independent plasmid construction for genetic studies in streptococci. Journal of Microbiological Methods. 94: 77-82. PMID 23673081 DOI: 10.1016/J.Mimet.2013.05.005  0.376
2012 Cai J, Tong H, Qi F, Dong X. CcpA-dependent carbohydrate catabolite repression regulates galactose metabolism in Streptococcus oligofermentans. Journal of Bacteriology. 194: 3824-32. PMID 22609925 DOI: 10.1128/Jb.00156-12  0.381
2012 Merritt J, Qi F. The mutacins of Streptococcus mutans: Regulation and ecology Molecular Oral Microbiology. 27: 57-69. PMID 22394465 DOI: 10.1111/J.2041-1014.2011.00634.X  0.397
2011 Xie Z, Okinaga T, Qi F, Zhang Z, Merritt J. Cloning-independent and counterselectable markerless mutagenesis system in Streptococcus mutans. Applied and Environmental Microbiology. 77: 8025-33. PMID 21948849 DOI: 10.1128/Aem.06362-11  0.356
2011 Liu J, Merritt J, Qi F. Genetic transformation of Veillonella parvula. Fems Microbiology Letters. 322: 138-44. PMID 21707732 DOI: 10.1111/J.1574-6968.2011.02344.X  0.335
2011 Liu J, Wu C, Huang IH, Merritt J, Qi F. Differential response of Streptococcus mutans towards friend and foe in mixed-species cultures. Microbiology (Reading, England). 157: 2433-44. PMID 21565931 DOI: 10.1099/Mic.0.048314-0  0.364
2010 Xie Z, Okinaga T, Niu G, Qi F, Merritt J. Identification of a novel bacteriocin regulatory system in Streptococcus mutans. Molecular Microbiology. 78: 1431-47. PMID 21143316 DOI: 10.1111/J.1365-2958.2010.07417.X  0.358
2010 Xie G, Chain PS, Lo CC, Liu KL, Gans J, Merritt J, Qi F. Community and gene composition of a human dental plaque microbiota obtained by metagenomic sequencing. Molecular Oral Microbiology. 25: 391-405. PMID 21040513 DOI: 10.1111/J.2041-1014.2010.00587.X  0.341
2010 Joyner PM, Liu J, Zhang Z, Merritt J, Qi F, Cichewicz RH. Mutanobactin A from the human oral pathogen Streptococcus mutans is a cross-kingdom regulator of the yeast-mycelium transition. Organic & Biomolecular Chemistry. 8: 5486-9. PMID 20852771 DOI: 10.1039/C0Ob00579G  0.355
2010 Qi F, Kreth J. Characterization of anti-competitor activities produced by oral bacteria Methods in Molecular Biology (Clifton, N.J.). 666: 151-166. PMID 20717784 DOI: 10.1007/978-1-60761-820-1_11  0.342
2010 Wu C, Cichewicz R, Li Y, Liu J, Roe B, Ferretti J, Merritt J, Qi F. Genomic island TnSmu2 of Streptococcus mutans harbors a nonribosomal peptide synthetase-polyketide synthase gene cluster responsible for the biosynthesis of pigments involved in oxygen and H2O2 tolerance. Applied and Environmental Microbiology. 76: 5815-26. PMID 20639370 DOI: 10.1128/Aem.03079-09  0.412
2010 Wu C, Ayala EA, Downey JS, Merritt J, Goodman SD, Qi F. Regulation of ciaXRH operon expression and identification of the CiaR regulon in Streptococcus mutans. Journal of Bacteriology. 192: 4669-79. PMID 20639331 DOI: 10.1128/Jb.00556-10  0.374
2010 Okinaga T, Xie Z, Niu G, Qi F, Merritt J. Examination of the hdrRM regulon yields insight into the competence system of Streptococcus mutans Molecular Oral Microbiology. 25: 165-177. PMID 20536745 DOI: 10.1111/J.2041-1014.2010.00574.X  0.418
2010 Okinaga T, Niu G, Xie Z, Qi F, Merritt J. The hdrRM operon of Streptococcus mutans encodes a novel regulatory system for coordinated competence development and bacteriocin production. Journal of Bacteriology. 192: 1844-52. PMID 20118256 DOI: 10.1128/Jb.01667-09  0.409
2010 Niu G, Okinaga T, Qi F, Merritt J. The Streptococcus mutans IrvR repressor is a CI-like regulator that functions through autocleavage and Clp-dependent proteolysis. Journal of Bacteriology. 192: 1586-95. PMID 20038591 DOI: 10.1128/Jb.01261-09  0.338
2009 Kreth J, Merritt J, Qi F. Bacterial and host interactions of oral streptococci. Dna and Cell Biology. 28: 397-403. PMID 19435424 DOI: 10.1089/Dna.2009.0868  0.324
2009 Nguyen T, Zhang Z, Huang IH, Wu C, Merritt J, Shi W, Qi F. Genes involved in the repression of mutacin I production in Streptococcus mutans. Microbiology (Reading, England). 155: 551-6. PMID 19202103 DOI: 10.1099/Mic.0.021303-0  0.436
2008 He X, Wu C, Yarbrough D, Sim L, Niu G, Merritt J, Shi W, Qi F. The cia operon of Streptococcus mutans encodes a unique component required for calcium-mediated autoregulation. Molecular Microbiology. 70: 112-26. PMID 18681938 DOI: 10.1111/J.1365-2958.2008.06390.X  0.333
2008 Kreth J, Zhu L, Merritt J, Shi W, Qi F. Role of sucrose in the fitness of Streptococcus mutans. Oral Microbiology and Immunology. 23: 213-9. PMID 18402607 DOI: 10.1111/J.1399-302X.2007.00413.X  0.329
2007 Eckert R, Mchardy I, Yarbrough DK, He J, Qi F, Anderson MH, Shi W. Stability and activity in sputum of G10KHc, a potent anti-Pseudomonas antimicrobial peptide. Chemical Biology & Drug Design. 70: 456-60. PMID 17927719 DOI: 10.1111/J.1747-0285.2007.00580.X  0.319
2007 Cross SE, Kreth J, Zhu L, Sullivan R, Shi W, Qi F, Gimzewski JK. Nanomechanical properties of glucans and associated cell-surface adhesion of Streptococcus mutans probed by atomic force microscopy under in situ conditions. Microbiology (Reading, England). 153: 3124-32. PMID 17768255 DOI: 10.1099/Mic.0.2007/007625-0  0.319
2007 Merritt J, Zheng L, Shi W, Qi F. Genetic characterization of the hdrRM operon: a novel high-cell-density-responsive regulator in Streptococcus mutans. Microbiology (Reading, England). 153: 2765-73. PMID 17660440 DOI: 10.1099/Mic.0.2007/007468-0  0.362
2007 Kreth J, Hung DC, Merritt J, Perry J, Zhu L, Goodman SD, Cvitkovitch DG, Shi W, Qi F. The response regulator ComE in Streptococcus mutans functions both as a transcription activator of mutacin production and repressor of CSP biosynthesis. Microbiology (Reading, England). 153: 1799-807. PMID 17526837 DOI: 10.1099/Mic.0.2007/005975-0  0.422
2007 Merritt J, Tsang P, Zheng L, Shi W, Qi F. Construction of a counterselection-based in-frame deletion system for genetic studies of Streptococcus mutans. Oral Microbiology and Immunology. 22: 95-102. PMID 17311632 DOI: 10.1111/J.1399-302X.2007.00329.X  0.362
2007 Tong H, Chen W, Merritt J, Qi F, Shi W, Dong X. Streptococcus oligofermentans inhibits Streptococcus mutans through conversion of lactic acid into inhibitory H2O2: a possible counteroffensive strategy for interspecies competition. Molecular Microbiology. 63: 872-80. PMID 17302806 DOI: 10.1111/J.1365-2958.2006.05546.X  0.367
2006 Cross SE, Kreth J, Zhu L, Qi F, Pelling AE, Shi W, Gimzewski JK. Atomic force microscopy study of the structure-function relationships of the biofilm-forming bacterium Streptococcus mutans. Nanotechnology. 17: S1-7. PMID 21727347 DOI: 10.1088/0957-4484/17/4/001  0.363
2006 Tong H, Zhu B, Chen W, Qi F, Shi W, Dong X. Establishing a genetic system for ecological studies of Streptococcus oligofermentans. Fems Microbiology Letters. 264: 213-9. PMID 17064375 DOI: 10.1111/J.1574-6968.2006.00453.X  0.394
2006 Eckert R, He J, Yarbrough DK, Qi F, Anderson MH, Shi W. Targeted killing of Streptococcus mutans by a pheromone-guided "smart" antimicrobial peptide. Antimicrobial Agents and Chemotherapy. 50: 3651-7. PMID 17060534 DOI: 10.1128/Aac.00622-06  0.342
2006 Kreth J, Merritt J, Zhu L, Shi W, Qi F. Cell density- and ComE-dependent expression of a group of mutacin and mutacin-like genes in Streptococcus mutans. Fems Microbiology Letters. 265: 11-7. PMID 16981904 DOI: 10.1111/J.1574-6968.2006.00459.X  0.342
2006 Eckert R, Brady KM, Greenberg EP, Qi F, Yarbrough DK, He J, McHardy I, Anderson MH, Shi W. Enhancement of antimicrobial activity against pseudomonas aeruginosa by coadministration of G10KHc and tobramycin. Antimicrobial Agents and Chemotherapy. 50: 3833-8. PMID 16940063 DOI: 10.1128/Aac.00509-06  0.308
2006 Tsang P, Merritt J, Shi W, Qi F. IrvA-dependent and IrvA-independent pathways for mutacin gene regulation in Streptococcus mutans. Fems Microbiology Letters. 261: 231-4. PMID 16907725 DOI: 10.1111/J.1574-6968.2006.00351.X  0.355
2006 Zhu L, Kreth J, Cross SE, Gimzewski JK, Shi W, Qi F. Functional characterization of cell-wall-associated protein WapA in Streptococcus mutans. Microbiology (Reading, England). 152: 2395-404. PMID 16849803 DOI: 10.1099/Mic.0.28883-0  0.345
2006 Eckert R, Qi F, Yarbrough DK, He J, Anderson MH, Shi W. Adding selectivity to antimicrobial peptides: rational design of a multidomain peptide against Pseudomonas spp. Antimicrobial Agents and Chemotherapy. 50: 1480-8. PMID 16569868 DOI: 10.1128/Aac.50.4.1480-1488.2006  0.338
2005 Tsang P, Merritt J, Nguyen T, Shi W, Qi F. Identification of genes associated with mutacin I production in Streptococcus mutans using random insertional mutagenesis. Microbiology (Reading, England). 151: 3947-55. PMID 16339939 DOI: 10.1099/Mic.0.28221-0  0.42
2005 Kreth J, Merritt J, Shi W, Qi F. Competition and coexistence between Streptococcus mutans and Streptococcus sanguinis in the dental biofilm. Journal of Bacteriology. 187: 7193-203. PMID 16237003 DOI: 10.1128/Jb.187.21.7193-7203.2005  0.346
2005 Qi F, Kreth J, Lévesque CM, Kay O, Mair RW, Shi W, Cvitkovitch DG, Goodman SD. Peptide pheromone induced cell death of Streptococcus mutans. Fems Microbiology Letters. 251: 321-6. PMID 16165324 DOI: 10.1016/J.Femsle.2005.08.018  0.339
2005 Merritt J, Kreth J, Shi W, Qi F. LuxS controls bacteriocin production in Streptococcus mutans through a novel regulatory component. Molecular Microbiology. 57: 960-9. PMID 16091037 DOI: 10.1111/J.1365-2958.2005.04733.X  0.422
2005 Kreth J, Merritt J, Shi W, Qi F. Co-ordinated bacteriocin production and competence development: a possible mechanism for taking up DNA from neighbouring species. Molecular Microbiology. 57: 392-404. PMID 15978073 DOI: 10.1111/J.1365-2958.2005.04695.X  0.386
2005 Merritt J, Kreth J, Qi F, Sullivan R, Shi W. Non-disruptive, real-time analyses of the metabolic status and viability of Streptococcus mutans cells in response to antimicrobial treatments. Journal of Microbiological Methods. 61: 161-70. PMID 15722141 DOI: 10.1016/J.Mimet.2004.11.012  0.38
2005 Merritt J, Qi F, Shi W. A unique nine-gene comY operon in Streptococcus mutans. Microbiology (Reading, England). 151: 157-66. PMID 15632435 DOI: 10.1099/Mic.0.27554-0  0.394
2004 Kreth J, Hagerman E, Tam K, Merritt J, Wong DT, Wu BM, Myung NV, Shi W, Qi F. Quantitative analyses of Streptococcus mutans biofilms with quartz crystal microbalance, microjet impingement and confocal microscopy. Biofilms. 1: 277-284. PMID 16429589 DOI: 10.1017/S1479050504001516  0.317
2004 Qi F, Merritt J, Lux R, Shi W. Inactivation of the ciaH Gene in Streptococcus mutans diminishes mutacin production and competence development, alters sucrose-dependent biofilm formation, and reduces stress tolerance. Infection and Immunity. 72: 4895-9. PMID 15271957 DOI: 10.1128/Iai.72.8.4895-4899.2004  0.386
2004 Kreth J, Merritt J, Bordador C, Shi W, Qi F. Transcriptional analysis of mutacin I (mutA) gene expression in planktonic and biofilm cells of Streptococcus mutans using fluorescent protein and glucuronidase reporters. Oral Microbiology and Immunology. 19: 252-6. PMID 15209996 DOI: 10.1111/J.1399-302X.2004.00148.X  0.4
2003 Li Y, Pan Y, Qi F, Caufield PW. Identification of Streptococcus sanguinis with a PCR-generated species-specific DNA probe. Journal of Clinical Microbiology. 41: 3481-6. PMID 12904342 DOI: 10.1128/Jcm.41.8.3481-3486.2003  0.315
2003 Merritt J, Qi F, Goodman SD, Anderson MH, Shi W. Mutation of luxS affects biofilm formation in Streptococcus mutans. Infection and Immunity. 71: 1972-9. PMID 12654815 DOI: 10.1128/Iai.71.4.1972-1979.2003  0.418
2001 Zhou X, Caufield PW, Li Y, Qi F. Complete nucleotide sequence and characterization of pUA140, a cryptic plasmid from Streptococcus mutans. Plasmid. 46: 77-85. PMID 11591133 DOI: 10.1006/Plas.2001.1539  0.327
2001 Qi F, Chen P, Caufield PW. The Group I Strain of Streptococcus mutans, UA140, Produces Both the Lantibiotic Mutacin I and a Nonlantibiotic Bacteriocin, Mutacin IV Applied and Environmental Microbiology. 67: 15-21. PMID 11133423 DOI: 10.1128/Aem.67.1.15-21.2001  0.335
2000 Qi F, Chen P, Caufield PW. Purification and Biochemical Characterization of Mutacin I from the Group I Strain of Streptococcus mutans, CH43, and Genetic Analysis of Mutacin I Biosynthesis Genes Applied and Environmental Microbiology. 66: 3221-3229. PMID 10919773 DOI: 10.1128/Aem.66.8.3221-3229.2000  0.372
1999 Qi F, Chen P, Caufield PW. Purification of Mutacin III from Group III Streptococcus mutans UA787 and Genetic Analyses of Mutacin III Biosynthesis Genes Applied and Environmental Microbiology. 65: 3880-3887. PMID 10473390 DOI: 10.1128/Aem.65.9.3880-3887.1999  0.329
1999 Chen P, Qi F, Novak J, Caufield PW. The Specific Genes for Lantibiotic Mutacin II Biosynthesis in Streptococcus mutans T8 Are Clustered and Can Be Transferred En Bloc Applied and Environmental Microbiology. 65: 1356-1360. PMID 10049909 DOI: 10.1128/Aem.65.3.1356-1360.1999  0.331
1999 Qi F, Chen P, Caufield PW. Functional Analyses of the Promoters in the Lantibiotic Mutacin II Biosynthetic Locus in Streptococcus mutans Applied and Environmental Microbiology. 65: 652-658. PMID 9925596 DOI: 10.1128/Aem.65.2.652-658.1999  0.328
1998 Chen P, Novak J, Kirk M, Barnes S, Qi F, Caufield PW. Structure-activity study of the lantibiotic mutacin II from Streptococcus mutans T8 by a gene replacement strategy. Applied and Environmental Microbiology. 64: 2335-2340. PMID 9647795 DOI: 10.1128/Aem.64.7.2335-2340.1998  0.305
1998 Chen P, Novak J, Qi F, Caufield PW. Diacylglycerol Kinase Is Involved in Regulation of Expression of the Lantibiotic Mutacin II of Streptococcus mutans Journal of Bacteriology. 180: 167-170. PMID 9422608 DOI: 10.1128/Jb.180.1.167-170.1998  0.347
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