World's Best Scientists 2026 revealed!
David S. Guttman

David S. Guttman

D-Index & Metrics

Microbiology

D-Index
88
Citations
26560
World Ranking
764
National Ranking
19

Genetics

D-Index
85
Citations
21093
World Ranking
1324
National Ranking
44

David S. Guttman 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 David S. Guttman 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: 264 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 233 scientists 205–214 publications: 207 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: 250 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

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

David S. Guttman 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 David S. Guttman 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: 111 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 122 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: 93 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: 88 D-Index — 87th percentile

87% of scientists in this discipline score the same or lower.

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

Overview

David S. Guttman is affiliated with the University of Toronto in Canada. Their research spans multiple fields, focusing predominantly on biochemistry, genetics, molecular biology, medicine, and agricultural and biological sciences. They have contributed extensively to subfields such as plant science, molecular biology, genetics, pulmonary and respiratory medicine, and infectious diseases.

The scientist's work covers a broad range of topics that include:

  • Gut microbiota and health
  • Inflammatory Bowel Disease
  • Plant Pathogenic Bacteria Studies
  • Plant-Microbe Interactions and Immunity
  • Plant Parasitism and Resistance
  • Cystic Fibrosis Research Advances
  • Microscopic Colitis

Among recent papers authored or co-authored by David S. Guttman are the following:

  • Increased Intestinal Permeability Is Associated With Later Development of Crohn's Disease, 2020, Gastroenterology
  • Evolutionary and structural analyses of SARS-CoV-2 D614G spike protein mutation now documented worldwide, 2020, Scientific Reports
  • The pan-genome effector-triggered immunity landscape of a host-pathogen interaction, 2020, Science
  • Bacteroides-dominant gut microbiome of late infancy is associated with enhanced neurodevelopment, 2021, Gut Microbes
  • Novel Fecal Biomarkers That Precede Clinical Diagnosis of Ulcerative Colitis, 2020, Gastroenterology

David S. Guttman often collaborates with several frequent co-authors including Kenneth Croitoru, Pauline W. Wang, Williams Turpin, Kevan Jacobson, and Guy Aumais. These partnerships reflect a collaborative approach across diverse research themes.

The scientist publishes regularly in a set of prominent venues, which include:

  • Gastroenterology
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Scientific Reports
  • Gut Microbes
  • Journal of Crohn's and Colitis

Best Publications

  • Gut microbiota of healthy Canadian infants: profiles by mode of delivery and infant diet at 4 months

    Meghan B. Azad;Theodore Konya;Heather Maughan;David S. Guttman

  • Assembly and ecological function of the root microbiome across angiosperm plant species.

    Connor R. Fitzpatrick;Julia Copeland;Pauline W. Wang;David S. Guttman

  • Disentangling Interactions in the Microbiome: A Network Perspective.

    Mehdi Layeghifard;David M. Hwang;David M. Hwang;David S. Guttman

  • Impact of maternal intrapartum antibiotics, method of birth and breastfeeding on gut microbiota during the first year of life: a prospective cohort study.

    MB Azad;MB Azad;T Konya;RR Persaud;DS Guttman

  • Evolution of the Core Genome of Pseudomonas syringae, a Highly Clonal, Endemic Plant Pathogen

    Sara F. Sarkar;David S. Guttman

  • Prophages mediate defense against phage infection through diverse mechanisms

    Joseph Bondy-Denomy;Jason Qian;Edze R Westra;Angus Buckling

  • Dynamic evolution of pathogenicity revealed by sequencing and comparative genomics of 19 Pseudomonas syringae isolates.

    David A. Baltrus;Marc T. Nishimura;Artur Romanchuk;Jeff H. Chang

  • Association of host genome with intestinal microbial composition in a large healthy cohort

    Williams Turpin;Osvaldo Espin-Garcia;Wei Xu;Mark S Silverberg;Mark S Silverberg;Mark S Silverberg

  • Infant gut microbiota and food sensitization: associations in the first year of life.

    M. B. Azad;T. Konya;D. S. Guttman;C. J. Field

  • Gut Microbial Metabolism Drives Transformation of Msh2-Deficient Colon Epithelial Cells

    Antoaneta Belcheva;Thergiory Irrazabal;Susan J. Robertson;Catherine Streutker

  • A functional screen for the type III (Hrp) secretome of the plant pathogen Pseudomonas syringae.

    David S. Guttman;Boris A. Vinatzer;Sara F. Sarkar;Max V. Ranall

  • Clonal Divergence in Escherichia coli as a Result of Recombination, Not Mutation

    David S. Guttman;Daniel E. Dykhuizen

  • The Gain-of-Function Arabidopsis acd6 Mutant Reveals Novel Regulation and Function of the Salicylic Acid Signaling Pathway in Controlling Cell Death, Defenses, and Cell Growth

    Debra N. Rate;James V. Cuenca;Grant R. Bowman;David S. Guttman

  • ANNUAL REVIEW OF PHYTOPATHOLOGY, VOL 49

    Heath E. O'Brien;Shalabh Thakur;David S. Guttman

  • Lung microbiota across age and disease stage in cystic fibrosis.

    Bryan Coburn;Pauline W. Wang;Julio Diaz Caballero;Shawn T. Clark

  • Regulation of obesity-related insulin resistance with gut anti-inflammatory agents.

    Helen Luck;Sue Tsai;Jason Chung;Xavier Clemente-Casares

  • Next‐generation mapping of Arabidopsis genes

    Ryan S. Austin;Danielle Vidaurre;George Stamatiou;Robert Breit

  • Infant gut microbiota and the hygiene hypothesis of allergic disease: impact of household pets and siblings on microbiota composition and diversity.

    Meghan B Azad;Theodore Konya;Heather Maughan;David S Guttman

  • Phylogenetic characterization of virulence and resistance phenotypes of Pseudomonas syringae.

    Michael S. H. Hwang;Robyn L. Morgan;Sara F. Sarkar;Pauline W. Wang

  • Seasonal community succession of the phyllosphere microbiome

    Julia K Copeland;Lijie Yuan;Mehdi Layeghifard;Pauline W Wang

  • Erratum: Gut microbial metabolism drives transformation of msh2-deficient colon epithelial cells (Cell (2014) 158 (288-299) )

    Antoaneta Belcheva;Thergiory Irrazabal;Susan J. Robertson;Catherine Streutker

Frequent Co-Authors

Darrell Desveaux
Darrell Desveaux University of Toronto
Anita L. Kozyrskyj
Anita L. Kozyrskyj University of Alberta
Malcolm R. Sears
Malcolm R. Sears McMaster University
Allan B. Becker
Allan B. Becker University of Manitoba
Stuart E. Turvey
Stuart E. Turvey University of British Columbia
Mark S. Silverberg
Mark S. Silverberg University of Toronto
Catherine J. Field
Catherine J. Field University of Alberta
Andrew D. Paterson
Andrew D. Paterson University of Toronto
Amy S. Lee
Amy S. Lee University of Southern California
Anne M. Griffiths
Anne M. Griffiths University of Toronto

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