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Karl J. Oparka

D-Index & Metrics

Biology and Biochemistry

D-Index
76
Citations
16456
World Ranking
5147
National Ranking
391

Karl J. Oparka publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Karl J. Oparka sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 174 publications — 38th percentile

38% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Karl J. Oparka D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Karl J. Oparka sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 76 D-Index — 75th percentile

75% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Karl J. Oparka is affiliated with the University of Edinburgh in the United Kingdom. The research focus spans multiple disciplines primarily within Biochemistry, Genetics and Molecular Biology, with additional work in Chemistry and Agricultural and Biological Sciences.

The scientist's subfields of study include:

  • Biophysics
  • Analytical Chemistry
  • Plant Science
  • Molecular Biology

Research topics addressed by Karl J. Oparka cover areas such as:

  • Spectroscopy Techniques in Biomedical and Chemical Research
  • Spectroscopy and Chemometric Analyses
  • Advanced Fluorescence Microscopy Techniques
  • Plant nutrient uptake and metabolism
  • Phytoplasmas and Hemiptera pathogens
  • Plant tissue culture and regeneration

Recent publications include:

  • "A Palette of Minimally Tagged Sucrose Analogues for Real-Time Raman Imaging of Intracellular Plant Metabolism," 2021, published in Angewandte Chemie International Edition
  • "A Palette of Minimally Tagged Sucrose Analogues for Real-Time Raman Imaging of Intracellular Plant Metabolism," 2021, published in Angewandte Chemie
  • "Preparation and Imaging of Specialized ER Using Super-Resolution and TEM Techniques," 2024, published in Methods in Molecular Biology

Frequent collaborators include:

  • Kirsten Knox
  • Fabio De Moliner
  • Doireann Gordon
  • Martin Lee
  • William J. Tipping

Publication venues where Karl J. Oparka has contributed notably are:

  • Angewandte Chemie International Edition
  • Angewandte Chemie
  • Methods in Molecular Biology

Best Publications

  • Stacks on tracks: the plant Golgi apparatus traffics on an actin/ER network†

    Petra Boevink;Karl Oparka;Simon Santa Cruz;Barry Martin

  • Simple, but Not Branched, Plasmodesmata Allow the Nonspecific Trafficking of Proteins in Developing Tobacco Leaves

    Karl J. Oparka;Alison G. Roberts;Petra C. Boevink;Simon Santa Cruz

  • Plasmodesmata and the control of symplastic transport

    A. G. Roberts;K. J. Oparka

  • Sieve elements and companion cells-traffic control centers of the phloem

    Karl J. Oparka;Robert Turgeon

  • Characterization of cucumber mosaic virus. IV. Movement protein and coat protein are both essential for cell-to-cell movement of cucumber mosaic virus

    Tomas Canto;Denton A.M. Prior;Karl-Heinz Hellwald;Karl J. Oparka

  • Tuberization in Potato Involves a Switch from Apoplastic to Symplastic Phloem Unloading

    Roberto Viola;Alison G. Roberts;Sophie Haupt;Silvia Gazzani;Silvia Gazzani

  • Phloem Unloading in Sink Leaves of Nicotiana benthamiana: Comparison of a Fluorescent Solute with a Fluorescent Virus.

    Alison G. Roberts;Simon Santa Cruz;Ian M. Roberts;Denton A. M. Prior

  • Getting the message across: how do plant cells exchange macromolecular complexes?

    Karl J Oparka

  • Real-time imaging of phloem unloading in the root tip of Arabidopsis

    K.J. Oparka;C.M. Duckett;D.A.M. Prior;D.B. Fisher

  • Expression of GFP-fusions in Arabidopsis companion cells reveals non-specific protein trafficking into sieve elements and identifies a novel post-phloem domain in roots.

    Ruth Stadler;Kathryn M. Wright;Christian Lauterbach;Gabi Amon

  • THE GREAT ESCAPE: Phloem Transport and Unloading of Macromolecules1

    Karl J. Oparka;Simon Santa Cruz

  • The photoreversible fluorescent protein iLOV outperforms GFP as a reporter of plant virus infection

    Sean Chapman;Christine Faulkner;Eirini Kaiserli;Carlos Garcia-Mata

  • Direct evidence for pressure-generated closure of plasmodesmata

    K.J. Oparka;D.A.M. Prior

  • Gating of epidermal plasmodesmata is restricted to the leading edge of expanding infection sites of tobacco mosaic virus (TMV).

    K.J. Oparka;D.A.M. Prior;S. Santa Cruz;H.S Padgett

  • Dye-coupling in the root epidermis of Arabidopsis is progressively reduced during development

    Catherine M. Duckett;Karl J. Oparka;Denton A. M. Prior;Liam Dolan

  • High-Throughput Viral Expression of cDNA–Green Fluorescent Protein Fusions Reveals Novel Subcellular Addresses and Identifies Unique Proteins That Interact with Plasmodesmata

    Nieves Medina Escobar;Sophie Haupt;Graham Thow;Petra Boevink

  • Cell-to-Cell and Phloem-Mediated Transport of Potato Virus X: The Role of Virions

    Simon Santa Cruz;Alison G. Roberts;Denton A. M. Prior;Sean Chapman

  • Plant neurobiology: no brain, no gain?

    Amedeo Alpi;Nikolaus Amrhein;Adam Bertl;Michael R. Blatt

  • Two Plant–Viral Movement Proteins Traffic in the Endocytic Recycling Pathway

    Sophie Haupt;Graham H. Cowan;Angelika Ziegler;Alison G. Roberts

  • Functional analysis of a DNA-shuffled movement protein reveals that microtubules are dispensable for the cell-to-cell movement of Tobacco mosaic virus

    Trudi Gillespie;Petra Boevink;Sophie Haupt;Alison G. Roberts

Frequent Co-Authors

Petra C. Boevink
Petra C. Boevink James Hutton Institute
Chris Hawes
Chris Hawes Oxford Brookes University
Norbert Sauer
Norbert Sauer University of Erlangen-Nuremberg
Peter Palukaitis
Peter Palukaitis Seoul Women's University
John W. S. Brown
John W. S. Brown James Hutton Institute
Michael E. Taliansky
Michael E. Taliansky James Hutton Institute
Roger A. Leigh
Roger A. Leigh University of Cambridge
Roberto Viola
Roberto Viola James Hutton Institute
Robert Turgeon
Robert Turgeon Cornell University
David J. Robinson
David J. Robinson University of Aberdeen

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Best Scientists Citing Karl J. Oparka

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Norbert Sauer

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Takashi Ueda

Takashi Ueda

National Institute for Basic Biology

Publications: 36

Michael E. Taliansky

Michael E. Taliansky

James Hutton Institute

Publications: 36

Aart J. E. van Bel

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Patricia Zambryski

Patricia Zambryski

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