World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
67
Citations
16237
World Ranking
824
National Ranking
224

Gary J. Samuels publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Gary J. Samuels sits on this spectrum.

36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36 publications 467+

This scientist: 188 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

Gary J. Samuels D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Gary J. Samuels sits on this spectrum.

30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 67 D-Index — 88th percentile

88% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

Overview

What is he best known for?

The fields of study he is best known for:

  • Botany
  • Fungus
  • Ecology

His scientific interests lie mostly in Botany, Trichoderma, Hypocrea, Taxonomy and Hypocreales. His Botany study incorporates themes from Hypocreaceae and Monophyly. His study in Trichoderma is interdisciplinary in nature, drawing from both Internal transcribed spacer, Fungi imperfecti, Microbiology, Biological pest control and Conidium.

His Hypocrea research incorporates elements of Trichoderma harzianum and Phylogenetics, Ribosomal DNA. His research investigates the link between Taxonomy and topics such as Clade that cross with problems in Trichothecene. His Nectria research is multidisciplinary, incorporating elements of Bionectriaceae, Gliocladium, Nectriaceae and Neonectria.

His most cited work include:

  • Taxonomy and phylogeny of Gliocladium analysed from nuclear large subunit ribosomal DNA sequences (552 citations)
  • Genera of Bionectriaceae, Hypocreaceae and Nectriaceae (Hypocreales, Ascomycetes) (289 citations)
  • Trichoderma: a review of biology and systematics of the genus (278 citations)

What are the main themes of his work throughout his whole career to date?

Gary J. Samuels focuses on Botany, Trichoderma, Hypocrea, Taxonomy and Hypocreales. His Botany research integrates issues from Clade, Phylogenetic tree and Hypocreaceae. The various areas that Gary J. Samuels examines in his Phylogenetic tree study include Phylogenetics and DNA sequencing.

His studies examine the connections between Trichoderma and genetics, as well as such issues in Theobroma, with regards to Endophyte. His research investigates the connection between Hypocrea and topics such as Ribosomal DNA that intersect with issues in Sequence analysis. His Taxonomy research incorporates themes from Hypomyces and Species complex.

He most often published in these fields:

  • Botany (81.12%)
  • Trichoderma (35.66%)
  • Hypocrea (32.87%)

What were the highlights of his more recent work (between 2008-2017)?

  • Botany (81.12%)
  • Trichoderma (35.66%)
  • Hypocrea (32.87%)

In recent papers he was focusing on the following fields of study:

Gary J. Samuels mostly deals with Botany, Trichoderma, Hypocrea, Taxonomy and Hypocreales. Gary J. Samuels combines subjects such as Phylogenetics, Clade, Species complex, Phylogenetic tree and Hypocreaceae with his study of Botany. His studies deal with areas such as Trichoderma harzianum, Theobroma, Hemicellulose, Forestry and Mycelium as well as Trichoderma.

His Hypocrea research includes themes of Ecology, Beta-glucosidase, Nomenclature, Xylan and Xylanase. The study incorporates disciplines such as Nectriaceae, Nectria and Ascomycota in addition to Taxonomy. Gary J. Samuels has researched Hypocreales in several fields, including Lophira alata, Moniliophthora, Conidium and Ochnaceae.

Between 2008 and 2017, his most popular works were:

  • Colletotrichum gloeosporioides s.l. associated with Theobroma cacao and other plants in Panama: multilocus phylogenies distinguish host-associated pathogens from asymptomatic endophytes. (165 citations)
  • Delimitation of Neonectria and Cylindrocarpon (Nectriaceae, Hypocreales, Ascomycota) and related genera with Cylindrocarpon-like anamorphs (134 citations)
  • Systematics of the Trichoderma harzianum species complex and the re-identification of commercial biocontrol strains (119 citations)

In his most recent research, the most cited papers focused on:

  • Botany
  • Fungus
  • Ecology

Gary J. Samuels spends much of his time researching Botany, Trichoderma, Hypocrea, Taxonomy and Hypocreales. His Botany research is multidisciplinary, incorporating perspectives in Nectriaceae and Clade. His Trichoderma study combines topics in areas such as Nomenclature and Nomenclature Committee.

He interconnects Monophyly, Species complex, Cylindrocarpon and Molecular phylogenetics in the investigation of issues within Taxonomy. His research in Hypocreales is mostly focused on Hypocreaceae. His work deals with themes such as Type, Bionectriaceae and Sordariomycetes, which intersect with Hypocreaceae.

Best Publications

  • Taxonomy and phylogeny of Gliocladium analysed from nuclear large subunit ribosomal DNA sequences

    Stephen A. Rehner;Gary J. Samuels

  • Genera of Bionectriaceae, Hypocreaceae and Nectriaceae (Hypocreales, Ascomycetes)

    Amy Y. Rossman;Gary J. Samuels;C. T. Rogerson;Rosalind Lowen

  • Endophytic fungi as biocontrol agents of Theobroma cacao pathogens

    Luis C. Mejía;Luis C. Mejía;Enith I. Rojas;Zuleyka Maynard;Sunshine Van Bael

  • Trichoderma species associated with the green mold epidemic of commercially grown Agaricus bisporus.

    Gary J. Samuels;Sarah L. Dodd;Walter Gams;Lisa A. Castlebury

  • Trichoderma: a review of biology and systematics of the genus

    Gary J. Samuels

  • Trichoderma: systematics, the sexual state, and ecology.

    Unknown

  • Systematics of the Trichoderma harzianum species complex and the re-identification of commercial biocontrol strains

    Priscila Chaverri;Fabiano Branco-Rocha;Walter Michael Jaklitsch;Romina Orietta Gazis

  • Molecular systematics of the Hypocreales: a teleomorph gene phylogeny and the status of their anamorphs

    Stephen A. Rehner;Gary J. Samuels

  • Colletotrichum gloeosporioides s.l. associated with Theobroma cacao and other plants in Panama: multilocus phylogenies distinguish host-associated pathogens from asymptomatic endophytes.

    Enith I. Rojas;Stephen A. Rehner;Gary J. Samuels;Sunshine A. Van Bael

  • Fungal and plant gene expression during the colonization of cacao seedlings by endophytic isolates of four Trichoderma species.

    B. A. Bailey;H. Bae;M. D. Strem;D. P. Roberts

  • Molecular evidence that the asexual industrial fungus Trichoderma reesei is a clonal derivative of the ascomycete Hypocrea jecorina

    K Kuhls;E Lieckfeldt;G J Samuels;W Kovacs

  • Antibiosis, mycoparasitism, and colonization success for endophytic Trichoderma isolates with biological control potential in Theobroma cacao

    B.A. Bailey;H. Bae;M.D. Strem;J. Crozier

  • Delimitation of Neonectria and Cylindrocarpon (Nectriaceae, Hypocreales, Ascomycota) and related genera with Cylindrocarpon-like anamorphs

    P. Chaverri;C. Salgado;Y. Hirooka;Y. Hirooka;A.Y. Rossman

  • The Trichoderma koningii aggregate species

    Gary J. Samuels;Sarah L. Dodd;Bing-Sheng Lu;Orlando Petrini

  • Preserving accuracy in GenBank

    Thomas D. Bruns;Meredith Blackwell;Ivan Edwards;Andy F.S. Taylor

  • Classification of the mycoparasite Gliocladium roseum in Clonostachys as C. rosea, its relationship to Bionectria ochroleuca, and notes on other Gliocladium-like fungi

    Hans-Josef Schroers;Gary J. Samuels;Keith A. Seifert;Walter Gams

  • Hypocrea rufa/Trichoderma viride: a reassessment, and description of five closely related species with and without warted conidia

    Walter M. Jaklitsch;Gary J. Samuels;Sarah L. Dodd;Bing-Sheng Lu

  • Multilocus phylogenetic structure within the Trichoderma harzianum/Hypocrea lixii complex

    Priscila Chaverri;Lisa A Castlebury;Gary J Samuels;David M Geiser

  • Parasitism of Trichoderma on Meloidogyne javanica and role of the gelatinous matrix

    Edna Sharon;Ilan Chet;Ada Viterbo;Meira Bar-Eyal

  • Accepted Trichoderma names in the year 2015.

    John Bissett;Walter Gams;Walter Jaklitsch;Gary J. Samuels

  • Hypocrea/Trichoderma: species with conidiophore elongations and green conidia.

    Priscila Chaverri;Lisa A. Castlebury;Barrie E. Overton;Gary J. Samuels

  • A Morphological and Molecular Perspective of Trichoderma viride: Is It One or Two Species?

    Elke Lieckfeldt;Gary J. Samuels;Helgard I. Nirenberg;Orlando Petrini

  • Preserving accuracy in GenBank

    M. I. Bidartondo;Thomas D. Bruns;Meredith Blackwell;Ivan Edwards

Frequent Co-Authors

Priscila Chaverri
Priscila Chaverri Bowie State University
Orlando Petrini
Orlando Petrini University of Applied Sciences and Arts of Southern Switzerland
David M. Geiser
David M. Geiser Pennsylvania State University
Walter Gams
Walter Gams Westerdijk Fungal Biodiversity Institute
Amy Y. Rossman
Amy Y. Rossman Agricultural Research Service
Irina S. Druzhinina
Irina S. Druzhinina Royal Botanic Gardens
Ulf Thrane
Ulf Thrane Technical University of Denmark
Keith A. Seifert
Keith A. Seifert Carleton University
Thomas Börner
Thomas Börner Humboldt-Universität zu Berlin

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