World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
49
Citations
10257
World Ranking
2234
National Ranking
181

Ian J. Alexander 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 Ian J. Alexander 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: 102 publications — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Ian J. Alexander 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 Ian J. Alexander 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: 49 D-Index — 66th percentile

66% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 1997 - Fellow of the Royal Society of Edinburgh

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Botany
  • Fungus

His primary scientific interests are in Botany, Ecology, Mycorrhiza, Mycelium and Annotation. He has researched Botany in several fields, including Environmental chemistry and Symbiosis. His research integrates issues of Base sequence and Mycorrhizal fungi in his study of Ecology.

His biological study spans a wide range of topics, including Albizia, Germination, Horticulture, Intsia and Rhizosphere. His studies in Mycelium integrate themes in fields like Terminal restriction fragment length polymorphism, Phosphate, Ectomycorrhiza and Hypha. His Annotation study combines topics in areas such as Phylogenetics, Ribosomal DNA, Herbarium, GenBank and Computational biology.

His most cited work include:

  • The UNITE database for molecular identification of fungi - recent updates and future perspectives (981 citations)
  • UNITE: a database providing web-based methods for the molecular identification of ectomycorrhizal fungi (657 citations)
  • Role of oxalic acid overexcretion in transformations of toxic metal minerals by Beauveria caledonica. (192 citations)

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

His primary areas of study are Botany, Mycorrhiza, Ectomycorrhiza, Ecology and Mycelium. As part of the same scientific family, Ian J. Alexander usually focuses on Botany, concentrating on Symbiosis and intersecting with Root system and Internal transcribed spacer. His study in the field of Paxillus involutus is also linked to topics like Phosphorus.

In his research, Biomass and Soil respiration is intimately related to Nutrient, which falls under the overarching field of Ectomycorrhiza. His research is interdisciplinary, bridging the disciplines of Biological dispersal and Ecology. His work in Mycelium addresses issues such as Sporocarp, which are connected to fields such as Hydnellum aurantiacum.

He most often published in these fields:

  • Botany (69.57%)
  • Mycorrhiza (38.04%)
  • Ectomycorrhiza (32.61%)

What were the highlights of his more recent work (between 2010-2015)?

  • Botany (69.57%)
  • Ecology (27.17%)
  • Ectomycorrhiza (32.61%)

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

His primary areas of investigation include Botany, Ecology, Ectomycorrhiza, Phosphorus and Mycorrhiza. His Botany study typically links adjacent topics like Species richness. Ecology is closely attributed to Carbon metabolism in his study.

The Ectomycorrhiza study combines topics in areas such as Terminal restriction fragment length polymorphism, Nutrient, Gnetum and Species diversity. The concepts of his Terminal restriction fragment length polymorphism study are interwoven with issues in Fungal mycelium, Internal transcribed spacer, Moss, Symbiosis and Community structure. His Mycelium research includes themes of Sporocarp, Phellodon niger and Hydnellum aurantiacum.

Between 2010 and 2015, his most popular works were:

  • Spatial analysis of ectomycorrhizal fungi reveals that root tip communities are structured by competitive interactions (83 citations)
  • Regional scale gradients of climate and nitrogen deposition drive variation in ectomycorrhizal fungal communities associated with native Scots pine (48 citations)
  • Fine‐scale diversity and distribution of ectomycorrhizal fungal mycelium in a Scots pine forest (40 citations)

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

  • Ecology
  • Botany
  • Fungus

His scientific interests lie mostly in Ecology, Scots pine, Terminal restriction fragment length polymorphism, Ectomycorrhiza and Mycelium. He is interested in Abundance, which is a branch of Ecology. His Terminal restriction fragment length polymorphism study incorporates themes from Identification, Microbial ecology, Species diversity, Biological dispersal and Community structure.

Ian J. Alexander carries out multidisciplinary research, doing studies in Ectomycorrhiza and Co-occurrence. His Mycelium study is concerned with Botany in general. His Phellodon niger and Hydnellum aurantiacum study are his primary interests in Botany.

Best Publications

  • The UNITE database for molecular identification of fungi - recent updates and future perspectives

    Kessy Abarenkov;R. Henrik Nilsson;R. Henrik Nilsson;Karl‐Henrik Larsson;Ian J. Alexander

  • UNITE: a database providing web-based methods for the molecular identification of ectomycorrhizal fungi

    Urmas Kõljalg;Karl-Henrik Larsson;Kessy Abarenkov;R. Henrik Nilsson

  • Role of oxalic acid overexcretion in transformations of toxic metal minerals by Beauveria caledonica.

    M. Fomina;S. Hillier;J. M. Charnock;K. Melville

  • Solubilization of toxic metal minerals and metal tolerance of mycorrhizal fungi

    M. Fomina;Ian James Alexander;J. Colpaert;G. M. Gadd

  • Preserving accuracy in GenBank

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

  • Fine‐scale distribution of pine ectomycorrhizas and their extramatrical mycelium

    David R Genney;David R Genney;I. C. Anderson;Ian James Alexander

  • The ectomycorrhizal symbiosis: Life in the real world

    A. F. S. Taylor;Ian James Alexander

  • Ectomycorrhizal rain-forest legumes and soil phosphorus in Korup National Park, Cameroon

    D. M. Newbery;I. J. Alexander;D. W. Thomas;J. S. Gartlan

  • PHOSPHORUS DYNAMICS IN A LOWLAND AFRICAN RAINFOREST: THE INFLUENCE OF ECTOMYCORRHIZAL TREES

    D. McC. Newbery;I. J. Alexander;J. A. Rother;J. A. Rother

  • Zinc Phosphate and Pyromorphite Solubilization by Soil Plant-Symbiotic Fungi

    M. Fomina;Ian James Alexander;S. Hillier;G. M. Gadd

  • Preserving accuracy in GenBank

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

  • The role of mycorrhizas in the regeneration of some Malaysian forest trees

    Ian Alexander;Norani Ahmad;Lee Su See

  • Spatial and temporal ecology of Scots pine ectomycorrhizas.

    Brian J. Pickles;Brian J. Pickles;Brian J. Pickles;David R. Genney;David R. Genney;Jacqueline M. Potts;Jack J. Lennon

  • Interaction between an isolate from the Hymenoscyphus ericae aggregate and roots of Pinus and Vaccinium

    Luis Villarreal-Ruiz;I. C. Anderson;Ian James Alexander

  • Spatial analysis of ectomycorrhizal fungi reveals that root tip communities are structured by competitive interactions

    Brian J. Pickles;Brian J. Pickles;David R. Genney;David R. Genney;David R. Genney;Ian C. Anderson;Ian C. Anderson;Ian J. Alexander

  • ECTOMYCORRHIZAS OF TROPICAL ANGIOSPERMOUS TREES

    I. J. Alexander;P. Högberg

  • Influences of Arbuscular Mycorrhizal Fungus Glomus mosseae on Growth and Nutrition of Lentil Irrigated with Arsenic Contaminated Water

    F. R. Sadeque Ahmed;Ken Killham;Ian Alexander

  • How do plants regulate the function, community structure, and diversity of mycorrhizal fungi?

    David Johnson;Marleen IJdo;David R. Genney;Ian C. Anderson

  • Effects of increased temperature, drought and nitrogen supply on two upland perennials of contrasting functional type: Calluna vulgaris and Pteridium aquilinum

    C. Gordon;S. J. Woodin;I. J. Alexander;C. E. Mullins

  • Endobacteria in some ectomycorrhiza of Scots pine (Pinus sylvestris).

    H. Izumi;H. Izumi;Ian C Anderson;Ian James Alexander;Kenneth Stuart Killham

  • Surface phosphatase activity of Sitka spruce mycorrhizas from a serpentine site

    I.J. Alexander;Kathleen Hardy

  • Diversity of fungi in hair roots of Ericaceae varies along a vegetation gradient.

    Damian S. Bougoure;Pamela I. Parkin;John W. G. Cairney;Ian J. Alexander

  • Effects of increased nitrogen and phosphorus availability on the photosynthesis and nutrient relations of three arctic dwarf shrubs from Svalbard.

    J. A. Baddeley;S. J. Woodin;I. J. Alexander

Frequent Co-Authors

Ian C. Anderson
Ian C. Anderson Western Sydney University
Andy F. S. Taylor
Andy F. S. Taylor University of Aberdeen
Angela Hodge
Angela Hodge University of York
Rasmus Kjøller
Rasmus Kjøller University of Copenhagen
Taina Pennanen
Taina Pennanen Finnish Forest Research Institute
Urmas Kõljalg
Urmas Kõljalg University of Tartu
Geoffrey M. Gadd
Geoffrey M. Gadd University of Dundee
Karl-Henrik Larsson
Karl-Henrik Larsson University of Oslo
Ian A. Dickie
Ian A. Dickie University of Canterbury
Jason E. Stajich
Jason E. Stajich University of California, Riverside

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