World's Best Scientists 2026 revealed!
Gerald W. Tannock

Gerald W. Tannock

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Microbiology
New Zealand
2026

D-Index & Metrics

Microbiology

D-Index
83
Citations
22772
World Ranking
1005
National Ranking
1

Gerald W. Tannock publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Gerald W. Tannock sits on this spectrum.

55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 265 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 234 scientists 205–214 publications: 208 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55 publications 679+

This scientist: 260 publications — 68th percentile

68% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

Gerald W. Tannock D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where Gerald W. Tannock sits on this spectrum.

40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 112 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 123 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 94 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 83 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Microbiology in New Zealand Leader Award
  • 2025 - Research.com Microbiology in New Zealand Leader Award
  • 2011 - Fellow of the Royal Society of New Zealand

Overview

Gerald W. Tannock is affiliated with the University of Otago in New Zealand. Their research focuses primarily on medicine and biochemistry, genetics, and molecular biology, with a strong emphasis on molecular biology as a subfield. The scientist's work spans topics such as gut microbiota and health, probiotics and fermented foods, diet and metabolism studies, and microbial metabolites in food biotechnology.

Their recent publication record includes papers covering various aspects of microbiology and nutrition. Notable works include:

  • "Questioning the fetal microbiome illustrates pitfalls of low-biomass microbial studies," 2023, published in Nature
  • "Ethnic diversity in infant gut microbiota is apparent before the introduction of complementary diets," 2020, Gut Microbes
  • "Association between the faecal short-chain fatty acid propionate and infant sleep," 2020, European Journal of Clinical Nutrition
  • "Galacto- and Fructo-oligosaccharides Utilized for Growth by Cocultures of Bifidobacterial Species Characteristic of the Infant Gut," 2020, Applied and Environmental Microbiology
  • "Modulating the Gut Microbiota of Humans by Dietary Intervention with Plant Glycans," 2020, Applied and Environmental Microbiology

Gerald W. Tannock's frequent coauthors include Blair Lawley, Ian M. Sims, Nikki Renall, Benedikt Merz, and Jeroen Douwes. This network indicates collaboration primarily in microbial and nutrition-related research.

The scientist has published extensively in several reputable journals, with the most frequent venues being Applied and Environmental Microbiology, Proceedings of The Nutrition Society, and Gut Microbes. Other publication venues include Nature and the European Journal of Clinical Nutrition.

Their research addresses multiple interrelated topics, reflecting a focus on the interactions between diet, microbial communities, and human health. The main topics covered in their work are:

  • Gut microbiota and health
  • Probiotics and fermented foods
  • Diet and metabolism studies
  • Clostridium difficile and Clostridium perfringens research
  • Microbial metabolites in food biotechnology
  • Nutritional studies and diet
  • Food security and health in diverse populations

In recognition of their contributions, Gerald W. Tannock was made a Fellow of the Royal Society of New Zealand in 2011.

Best Publications

  • Detection of Lactobacillus, Pediococcus, Leuconostoc, and Weissella Species in Human Feces by Using Group-Specific PCR Primers and Denaturing Gradient Gel Electrophoresis

    Jens Walter;Christian Hertel;Gerald W. Tannock;Claudia M. Lis

  • VSL#3 Probiotic-Mixture Induces Remission in Patients with Active Ulcerative Colitis

    Rodrigo Bibiloni;Richard N Fedorak;Gerald W Tannock;Karen L Madsen

  • Analysis of the fecal microflora of human subjects consuming a probiotic product containing Lactobacillus rhamnosus DR20.

    GW Tannock;K Munro;Hermie Harmsen;GW Welling

  • Detection and identification of gastrointestinal Lactobacillus species by using denaturing gradient gel electrophoresis and species-specific PCR primers.

    J. Walter;G. W. Tannock;A. Tilsala-Timisjarvi;S. Rodtong

  • A differential effect of 2 probiotics in the prevention of eczema and atopy: a double-blind, randomized, placebo-controlled trial.

    Kristin Wickens;Peter N. Black;Thorsten V. Stanley;Edwin Mitchell

  • Effects of Dietary Fat Source and Subtherapeutic Levels of Antibiotic on the Bacterial Community in the Ileum of Broiler Chickens at Various Ages

    Ane Knarreborg;Mary Alice Simon;Ricarda M. Engberg;Bent Borg Jensen

  • Normal Microflora: An introduction to microbes inhabiting the human body

    Gerald W. Tannock

  • A Special Fondness for Lactobacilli

    Gerald W. Tannock

  • Influences of dietary and environmental stress on microbial populations in the murine gastrointestinal tract.

    Gerald W. Tannock;Dwayne C. Savage

  • Questioning the fetal microbiome illustrates pitfalls of low-biomass microbial studies

    Unknown

  • Molecular analysis of the composition of the bifidobacterial and lactobacillus microflora of humans.

    A L McCartney;W Wenzhi;G W Tannock

  • The evolution of host specialization in the vertebrate gut symbiont Lactobacillus reuteri.

    Steven A. Frese;Andrew K. Benson;Gerald W. Tannock;Diane M. Loach

  • Analysis of fecal populations of bifidobacteria and lactobacilli and investigation of the immunological responses of their human hosts to the predominant strains.

    Katsunori Kimura;Anne L. Mccartney;Michelle A. Mcconnell;Gerald W. Tannock

  • Probiotics A critical review

    G. W. Tannock

  • Molecular assessment of intestinal microflora.

    Gerald W Tannock

  • A new macrocyclic antibiotic, fidaxomicin (OPT-80), causes less alteration to the bowel microbiota of Clostridium difficile-infected patients than does vancomycin

    Gerald W. Tannock;Karen Munro;Corinda Taylor;Blair Lawley

  • Probiotic properties of lactic-acid bacteria: plenty of scope for fundamental R & D

    Gerald W Tannock

  • The bacteriology of biopsies differs between newly diagnosed, untreated, Crohn's disease and ulcerative colitis patients.

    Rodrigo Bibiloni;Marco Mangold;Karen L. Madsen;Richard N. Fedorak

  • Reduction of colitis by prebiotics in HLA‐B27 transgenic rats is associated with microflora changes and immunomodulation

    Frank Hoentjen;Gjalt W. Welling;Hermie J. M. Harmsen;Xiaoyin Zhang

  • Analysis of bacterial bowel communities of IBD patients: What has it revealed?

    Harry Sokol;Christophe Lay;Philippe Seksik;Gerald W. Tannock

  • Identification, detection, and enumeration of human bifidobacterium species by PCR targeting the transaldolase gene.

    Teresa Requena;Jeremy Burton;Takahiro Matsuki;Karen Munro

Frequent Co-Authors

Howard F. Jenkinson
Howard F. Jenkinson University of Bristol
Jens Walter
Jens Walter National University of Ireland
Gjalt W. Welling
Gjalt W. Welling University Medical Center Groningen
Hermie J. M. Harmsen
Hermie J. M. Harmsen University Medical Center Groningen
Ashley Woodcock
Ashley Woodcock University of Manchester
Adnan Custovic
Adnan Custovic Imperial College London
Maria Makrides
Maria Makrides University of Adelaide
R. Balfour Sartor
R. Balfour Sartor University of North Carolina at Chapel Hill
Christian Hertel
Christian Hertel German Institute of Food Technologies
Ricarda M. Engberg
Ricarda M. Engberg Aarhus University

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