J. Tagg

University of Otago

Research Areas

• Probiotics and Fermented Foods
• Streptococcal Infections and Treatments
• Oral microbiology and periodontitis research
• Antimicrobial Resistance in Staphylococcus
• Biochemical and Structural Characterization

Health Outcomes Studied

• Increased Hemoglobin Levels
• Increased Salivary Streptococcus salivarius K12 Levels

Papers (22)

• 2023Primary author
  Beneficial modulation of human health in the oral cavity and beyond using bacteriocin-like inhibitory substance-producing streptococcal probiotics.10.3389/fmicb.2023.1161155
• 2022
  Safety assessment of Streptococcus salivarius M18 a probiotic for oral health.10.3920/BM2021.0107
• 2020
  A TaqMan™-based quantitative PCR screening assay for the probiotic Streptococcus salivarius K12 based on the specific detection of its megaplasmid-associated salivaricin B locus.10.1016/j.mimet.2020.105837
• 2020
  In vitro Inhibition of Clinical Isolates of Otitis Media Pathogens by the Probiotic Streptococcus salivarius BLIS K1210.1007/s12602-020-09719-7
• 2016
  Investigation of Streptococcus salivarius-mediated inhibition of pneumococcal adherence to pharyngeal epithelial cells10.1186/s12866-016-0843-z
• 2015
  Streptococcus salivarius K12 Limits Group B Streptococcus Vaginal Colonization10.1128/IAI.00409-15
• 2013
  Persistence of the Oral Probiotic Streptococcus salivarius M18 Is Dose Dependent and Megaplasmid Transfer Can Augment Their Bacteriocin Production and Adhesion Characteristics10.1371/journal.pone.0065991
• 2013
  Influence of the probiotic Streptococcus salivarius strain M18 on indices of dental health in children: a randomized double-blind, placebo-controlled trial.10.1099/jmm.0.056663-0
• 2012
  Developing oral probiotics from Streptococcus salivarius.10.2217/fmb.12.113
• 2011
  Genome Sequence of the Bacteriocin-Producing Oral Probiotic Streptococcus salivarius Strain M1810.1128/JB.06001-11
• 2011
  Evaluation of safety and human tolerance of the oral probiotic Streptococcus salivarius K12: a randomized, placebo-controlled, double-blind study.10.1016/j.fct.2011.06.038
• 2010
  Extended Safety Data for the Oral Cavity Probiotic Streptococcus salivarius K1210.1007/s12602-010-9045-4
• 2009Primary author
  Streptococcal Bacteriocin-Like Inhibitory Substances: Some Personal Insights into the Bacteriocin-Like Activities Produced by Streptococci Good and Bad10.1007/s12602-008-9002-7
• 2009
  Streptococcal bacteriocins and the case for Streptococcus salivarius as model oral probiotics.10.2217/fmb.09.61
• 2008
  Preliminary investigations of the colonisation of upper respiratory tract tissues of infants using a paediatric formulation of the oral probiotic Streptococcus salivarius K1210.1007/s10096-008-0569-4
• 2008
  The Commensal Streptococcus salivarius K12 Downregulates the Innate Immune Responses of Human Epithelial Cells and Promotes Host-Microbe Homeostasis10.1128/IAI.00188-08
• 2007
  Salivaricin A2 and the Novel Lantibiotic Salivaricin B Are Encoded at Adjacent Loci on a 190-Kilobase Transmissible Megaplasmid in the Oral Probiotic Strain Streptococcus salivarius K1210.1128/AEM.02265-06
• 2007
  The effect of ingestion of milk supplemented with salivaricin A-producing Streptococcus salivarius on the bacteriocin-like inhibitory activity of streptococcal populations on the tongue.10.1111/J.1574-6941.2006.00228.X
• 2006
  Megaplasmids encode differing combinations of lantibiotics in Streptococcus salivarius10.1007/s10482-006-9081-y
• 2006
  Safety Assessment of the Oral Cavity Probiotic Streptococcus salivarius K1210.1128/AEM.72.4.3050-3053.2006
• 2001
  Intra- and Interspecies Signaling betweenStreptococcus salivarius and Streptococcus pyogenes Mediated by SalA and SalA1 Lantibiotic Peptides10.1128/JB.183.13.3931-3938.2001
• 1991Primary author
  Applications of BLIS typing to studies of the survival on surfaces of salivary streptococci and staphylococci.10.1111/J.1365-2672.1991.TB03797.X