World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
62
Citations
14985
World Ranking
2854
National Ranking
1136

Joyce E. Loper 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 Joyce E. Loper 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: 146 publications — 24th percentile

24% of scientists in this discipline score the same or lower.

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

Joyce E. Loper 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 Joyce E. Loper 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: 62 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Overview

Joyce E. Loper is affiliated with Oregon State University in the United States. Their research spans multiple domains within biochemistry, genetics, and molecular biology, with additional focus on agricultural and biological sciences. The scientist's work largely concentrates on plant science, molecular biology, and aspects of pharmacology, ecology, and genetics as subfields.

Loper's work addresses diverse topics including genomics and phylogenetic studies, microbial natural products and biosynthesis, plant pathogenic bacteria studies, plant-microbe interactions and immunity, microbial community ecology and physiology, photosynthetic processes and mechanisms, as well as bacterial genetics and biotechnology.

Recent notable publications by Joyce E. Loper include:

  • "Unexpected conservation and global transmission of agrobacterial virulence plasmids," 2020, Science
  • "A polyyne toxin produced by an antagonistic bacterium blinds and lyses a Chlamydomonad alga," 2021, Proceedings of the National Academy of Sciences
  • "The bacterium Pseudomonas protegens antagonizes the microalga Chlamydomonas reinhardtii using a blend of toxins," 2021, Environmental Microbiology
  • "Untargeted Identification of Alkyne-Containing Natural Products Using Ruthenium-Catalyzed Azide Alkyne Cycloaddition Reactions Coupled to LC-MS/MS," 2022, Journal of Natural Products
  • "Two Pathway-Specific Transcriptional Regulators, PltR and PltZ, Coordinate Autoinduction of Pyoluteorin in Pseudomonas protegens Pf-5," 2021, Microorganisms

Frequent coauthors collaborating with Loper include Qing Yan, Vivien Hotter, Prasad Aiyar, Severin Sasso, and Christian Hertweck.

Joyce E. Loper's research has been published in venues such as Science, Proceedings of the National Academy of Sciences, Environmental Microbiology, Microorganisms, and the Journal of Natural Products.

Best Publications

  • Complete genome sequence of the plant commensal Pseudomonas fluorescens Pf-5

    Ian T Paulsen;Caroline M Press;Jacques Ravel;Donald Y Kobayashi

  • Genomics of secondary metabolite production by Pseudomonas spp.

    Harald Gross;Joyce E. Loper

  • Comparative Genomics of Plant-Associated Pseudomonas spp.: Insights into Diversity and Inheritance of Traits Involved in Multitrophic Interactions

    Joyce E Loper;Joyce E Loper;Karl A Hassan;Dmitri V. Mavrodi;Edward W. Davis Ii

  • Influence of Bacterial Sources of Indole-3-acetic Acid on Root Elongation of Sugar Beet

    J. E. Loper;M. N. Schroth

  • Comparison of the complete genome sequences of Pseudomonas syringae pv. syringae B728a and pv. tomato DC3000

    Helene Feil;William S. Feil;Patrick Chain;Frank Larimer

  • SOILBORNE PLANT DISEASES CAUSED BY PYTHIUM SPP: ECOLOGY, EPIDEMIOLOGY, AND PROSPECTS FOR BIOLOGICAL CONTROL

    Frank N. Martin;Joyce E. Loper

  • Utilization of heterologous siderophores enhances levels of iron available to Pseudomonas putida in the rhizosphere.

    Joyce E. Loper;Marcella D. Henkels

  • Characterization of the Pyoluteorin Biosynthetic Gene Cluster of Pseudomonas fluorescens Pf-5

    Brian Nowak-Thompson;Nancy Chaney;Jenny S. Wing;Steven J. Gould

  • The Genomisotopic Approach: A Systematic Method to Isolate Products of Orphan Biosynthetic Gene Clusters

    Harald Gross;Harald Gross;Virginia O. Stockwell;Marcella D. Henkels;Brian Nowak-Thompson

  • Role of fluorescent siderophore production in biological control of Pythium ultimum by a Pseudomonas fluorescens strain

    Joyce E. Loper

  • The sigma factor sigma s affects antibiotic production and biological control activity of Pseudomonas fluorescens Pf-5

    Alain Sarniguet;Jennifer Kraus;Marcella D. Henkels;Andrea M. Muehlchen

  • PRODUCTION OF 2, 4-DIACETYLPHLOROGLUCINOL BY THE BIOCONTROL AGENT PSEUDOMONAS FLUORESCENS PF-5

    Brian Nowak-Thompson;Steven J. Gould;Jennifer Kraus;Joyce E. Loper

  • Characterization of a Genomic Region Required for Production of the Antibiotic Pyoluteorin by the Biological Control Agent Pseudomonas fluorescens Pf-5.

    J Kraus;J E Loper

  • The two-component regulators GacS and GacA influence accumulation of the stationary-phase sigma factor sigmaS and the stress response in Pseudomonas fluorescens Pf-5.

    Cheryl A. Whistler;Nathan A. Corbell;Alain Sarniguet;Walter Ream

  • A global regulator of secondary metabolite production in Pseudomonas fluorescens Pf-5.

    N Corbell;J E Loper

  • Availability of iron to Pseudomonas fluorescens in rhizosphere and bulk soil evaluated with an ice nucleation reporter gene.

    J E Loper;M D Henkels

  • Lognormal distribution of bacterial populations in the rhizosphere

    J. E. Loper;T. V. Suslow;M. N. Schroth

  • Evaluation of streptomycin, oxytetracycline, and copper resistance of Erwinia amylovora isolated from pear orchards in Washington State.

    J E Loper;Henkels;R G Roberts

  • Lack of evidence for in situ fluorescent pigment production by Pseudomonas syringae pv. syringae on bean leaf surfaces

    J. E. Loper;S. E. Lindow

  • Genome‐based evolutionary history of Pseudomonas spp

    Cedar Hesse;Frederik Schulz;Carolee T. Bull;Brenda T. Shaffer

  • Population Dynamics of Soil Pseudomonads in the Rhizosphere of Potato (Solanum tuberosum L.).

    Joyce E. Loper;Caryn Haack;Milton N. Schroth

Frequent Co-Authors

Ian T. Paulsen
Ian T. Paulsen Macquarie University
Jeff H. Chang
Jeff H. Chang Oregon State University
Steven E. Lindow
Steven E. Lindow University of California, Berkeley
Linda S. Thomashow
Linda S. Thomashow Washington State University
Jos M. Raaijmakers
Jos M. Raaijmakers Leiden University
Nickolas J. Panopoulos
Nickolas J. Panopoulos University of Crete
Christoph Keel
Christoph Keel University of Lausanne
Welington Luiz Araújo
Welington Luiz Araújo Universidade de São Paulo
Philippe Lemanceau
Philippe Lemanceau INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Nikos C. Kyrpides
Nikos C. Kyrpides Joint Genome Institute

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