World's Best Scientists 2026 revealed!
Michael K. Theodorou

Michael K. Theodorou

D-Index & Metrics

Plant Science and Agronomy

D-Index
60
Citations
14247
World Ranking
1198
National Ranking
103

Michael K. Theodorou 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 Michael K. Theodorou 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: 181 publications — 71st percentile

71% of scientists in this discipline score the same or lower.

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

Michael K. Theodorou 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 Michael K. Theodorou 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: 60 D-Index — 82nd percentile

82% 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:

  • Bacteria
  • Enzyme
  • Botany

His main research concerns Rumen, Animal science, Botany, Lolium perenne and Agronomy. His research in Rumen intersects with topics in Ruminant, Silage, Zoospore, Digestion and Forage. His study looks at the relationship between Ruminant and topics such as Fermentation, which overlap with Chromatography.

His work investigates the relationship between Botany and topics such as Neocallimastigomycota that intersect with problems in Neocallimastix and Piromyces. His research in Lolium perenne focuses on subjects like Dry matter, which are connected to Perennial plant. The concepts of his Agronomy study are interwoven with issues in Soil biodiversity, Environmental soil science, Soil ecology and Soil contamination.

His most cited work include:

  • A simple gas production method using a pressure transducer to determine the fermentation kinetics of ruminant feeds. (1074 citations)
  • A semi-automated in vitro gas production technique for ruminant feedstuff evaluation (396 citations)
  • A Model to Interpret Gas Accumulation Profiles Associated with In Vitro Degradation of Ruminant Feeds (311 citations)

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

Michael K. Theodorou focuses on Rumen, Botany, Agronomy, Animal science and Forage. His Rumen study necessitates a more in-depth grasp of Fermentation. His studies in Botany integrate themes in fields like In vitro, Carbon dioxide and Neocallimastigomycota.

His work in the fields of Agronomy, such as Grazing, Lolium perenne and Perennial plant, overlaps with other areas such as Condensed tannin. His Animal science research is multidisciplinary, incorporating perspectives in Ruminant animal, Carbohydrate and In vivo. His study on Forage also encompasses disciplines like

  • Digestion and Red Clover most often made with reference to Silage,
  • Animal nutrition that intertwine with fields like Legume.

He most often published in these fields:

  • Rumen (49.07%)
  • Botany (33.33%)
  • Agronomy (26.85%)

What were the highlights of his more recent work (between 2007-2021)?

  • Rumen (49.07%)
  • Botany (33.33%)
  • Food science (14.81%)

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

Michael K. Theodorou mainly investigates Rumen, Botany, Food science, Perennial plant and Agronomy. His research integrates issues of Colonization and Plant enzyme in his study of Rumen. As a part of the same scientific family, Michael K. Theodorou mostly works in the field of Botany, focusing on Neocallimastigomycota and, on occasion, Fungus and Microorganism.

His Perennial plant study incorporates themes from Colonisation and Bacteria. Michael K. Theodorou regularly links together related areas like Animal science in his Agronomy studies. Michael K. Theodorou has researched Ruminant in several fields, including Plant genetics and Dry matter.

Between 2007 and 2021, his most popular works were:

  • Dynamics of initial colonization of nonconserved perennial ryegrass by anaerobic fungi in the bovine rumen (89 citations)
  • Diversity and activity of enriched ruminal cultures of anaerobic fungi and methanogens grown together on lignocellulose in consecutive batch culture. (77 citations)
  • Diversity of anaerobic fungal populations in cattle revealed by selective enrichment culture using different carbon sources (50 citations)

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

  • Bacteria
  • Enzyme
  • Botany

Michael K. Theodorou mainly investigates Neocallimastigomycota, Rumen, Botany, Neocallimastigales and Colonization. While the research belongs to areas of Neocallimastigomycota, Michael K. Theodorou spends his time largely on the problem of Microorganism, intersecting his research to questions surrounding Zoospore, Animal science, Fungus and Ribosomal RNA. His study with Rumen involves better knowledge in Food science.

His Food science study integrates concerns from other disciplines, such as Carbon dioxide and Straw. His biological study spans a wide range of topics, including Enrichment culture and Fungal ecology. His Colonization research incorporates themes from Perennial plant, Prevotella, Bacteria, Lolium and Metagenomics.

Best Publications

  • Fungal diversity notes 111–252—taxonomic and phylogenetic contributions to fungal taxa

    Guo Jie Li;Kevin D. Hyde;Kevin D. Hyde;Kevin D. Hyde;Rui Lin Zhao;Sinang Hongsanan;Sinang Hongsanan

  • A Model to Interpret Gas Accumulation Profiles Associated with In Vitro Degradation of Ruminant Feeds

    M.S. Dhanoa;M.K. Theodorou;S.J. Lister

  • Increased concentration of water-soluble carbohydrate in perennial ryegrass (Lolium perenne L.) : milk production from late lactation dairy cows

    L. A. Miller;Jon M. Moorby;David R. Davies;Mervyn O. Humphreys

  • Fungal diversity notes 253–366: taxonomic and phylogenetic contributions to fungal taxa

    Unknown

  • Pathogens in livestock waste, their potential for movement through soil and environmental pollution

    Jane L. Mawdsley;Richard D. Bardgett;Roger J. Merry;Brian F. Pain

  • Growth of anaerobic rumen fungi on defined and semi-defined media lacking rumen fluid

    Susan E. Lowe;Michael K. Theodorou;Anthony P. J. Trinci;Robert B. Hespell

  • Anaerobic fungi in herbivorous animals

    Anthony P.J. Trinci;David R. Davies;Keith Gull;Michelle I. Lawrence

  • AgroCycle – developing a circular economy in agriculture

    Trisha A. Toop;Shane Ward;Thomas Oldfield;Maria Hull

  • Genomic and functional analyses of fungal and bacterial consortia that enable lignocellulose breakdown in goat gut microbiomes.

    Xuefeng Peng;St. Elmo Wilken;Thomas S. Lankiewicz;Thomas S. Lankiewicz;Sean P. Gilmore

  • Plant-mediated lipolysis and proteolysis in red clover with different polyphenol oxidase activities

    Michael R. F. Lee;Ana L. Winters;Nigel D. Scollan;Richard J. Dewhurst

  • Increased concentration of water-soluble carbohydrate in perennial ryegrass (Lolium perenne L.). Evaluation in dairy cows in early lactation

    Jon M. Moorby;Roger T. Evans;Nigel D. Scollan;John C. MacRae

  • An automated system for measuring gas production from forages inoculated with rumen fluid and its use in determining the effect of enzymes on grass silage

    Z.S Davies;D Mason;A.E Brooks;G.W Griffith

  • Effects of high-sugar ryegrass silage and mixtures with red clover silage on ruminant digestion. 1. In vitro and in vivo studies of nitrogen utilization.

    Roger J. Merry;Michael R. F. Lee;David R. Davies;Richard J. Dewhurst

  • Anaerobic gut fungi: Advances in isolation, culture, and cellulolytic enzyme discovery for biofuel production.

    Charles H. Haitjema;Kevin V. Solomon;John K. Henske;Michael K. Theodorou;Michael K. Theodorou

  • Dynamics of initial colonization of nonconserved perennial ryegrass by anaerobic fungi in the bovine rumen

    Joan Elizabeth Edwards;Alison H Kingston-Smith;Hugo R Jimenez;Sharon A Huws

  • Identification and characterization of anaerobic gut fungi using molecular methodologies based on ribosomal ITS1 and 18S rRNA.

    J. L. Brookman;J. L. Brookman;G. Mennim;G. Mennim;A. P. J. Trinci;M. K. Theodorou

  • Distribution of anaerobic fungi in the digestive tract of cattle and their survival in faeces.

    David R. Davies;Michael K. Theodorou;Michelle I. G. Lawrence;Anthony P. J. Trinci

  • Comparison of bovine rumen liquor and bovine faeces as inoculum for an in vitro gas production technique for evaluating forages.

    Rogerio M. Mauricio;Emyr Owen;Fergus L. Mould;D Ian Givens

  • Rumen metabolism and nitrogen flow to the small intestine in steers offered Lolium perenne containing different levels of water-soluble carbohydrate

    Michael Rf Lee;LJ Harris;JM Moorby;MO Humphreys

  • Effect of increasing availability of water-soluble carbohydrates on in vitro rumen fermentation

    Michael R. F. Lee;Roger J. Merry;David R. Davies;Jon M. Moorby

  • Diversity and activity of enriched ruminal cultures of anaerobic fungi and methanogens grown together on lignocellulose in consecutive batch culture.

    Yan Fen Cheng;Joan E. Edwards;Gordon G. Allison;Wei-Yun Zhu

  • Production responses from lambs grazed on Lolium perenne selected for an elevated water-soluble carbohydrate concentration

    Michael R. F. Lee;Evan L. Jones;Jonathan M. Moorby;Mervyn O. Humphreys

Frequent Co-Authors

Alison H. Kingston-Smith
Alison H. Kingston-Smith Aberystwyth University
Anthony P. J. Trinci
Anthony P. J. Trinci University of Manchester
Nigel D. Scollan
Nigel D. Scollan Queen's University Belfast
Roger J. Merry
Roger J. Merry Aberystwyth University
Jon M. Moorby
Jon M. Moorby Aberystwyth University
Mervyn O. Humphreys
Mervyn O. Humphreys Aberystwyth University
Michael R. F. Lee
Michael R. F. Lee Harper Adams University
Gareth W. Griffith
Gareth W. Griffith Aberystwyth University
Emyr Owen
Emyr Owen University of Reading
Douglas B. Kell
Douglas B. Kell University of Liverpool

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