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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 61 1153 1059 81 72 166 13776

Tobias G. Köllner publications per year

The chart shows the history of publications by Tobias G. Köllner between 2002 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Tobias G. Köllner published across 24 years, from 2002 to 2025, averaging 9.1 papers a year. Output peaked at 25 publications in 2019. 22 of the 218 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 2002 to 2025. Vertical axis: number of publications, 0 to 25. Peak 25 publications in 2019. 2002: 1 publication 2003: 1 publication 2004: 3 publications 2005: 1 publication 2006: 2 publications 2007: 4 publications 2008: 7 publications 2009: 8 publications 2010: 8 publications 2011: 3 publications 2012: 7 publications 2013: 13 publications 2014: 6 publications 2015: 11 publications 2016: 10 publications 2017: 9 publications 2018: 15 publications 2019: 25 publications 2020: 25 publications 2021: 11 publications 2022: 13 publications 2023: 13 publications 2024: 9 publications 2025: 13 publications
2002 2025

218 publications in total across all disciplines

View publications per year as a table
Tobias G. Köllner: publications per year, 2002 to 2025
Year Publications
2002 1
2003 1
2004 3
2005 1
2006 2
2007 4
2008 7
2009 8
2010 8
2011 3
2012 7
2013 13
2014 6
2015 11
2016 10
2017 9
2018 15
2019 25
2020 25
2021 11
2022 13
2023 13
2024 9
2025 13
Total 218
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Tobias G. Köllner 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 Tobias G. Köllner sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 88 bars. Horizontal axis: publications, 36–40 to 467+. Vertical axis: number of scientists, 0 to 255. Most scientists, 255, have 111–115 publications. The last bar groups every scientist with 467 publications or more. The highlighted bar, 166–170 publications, is where this scientist sits. 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
36–40 publications 467+

This scientist: 166 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications Scientists This scientist
36–40 2
41–45 7
46–50 40
51–55 58
56–60 60
61–65 107
66–70 130
71–75 153
76–80 191
81–85 199
86–90 206
91–95 218
96–100 226
101–105 227
106–110 247
111–115 255
116–120 253
121–125 233
126–130 219
131–135 201
136–140 194
141–145 176
146–150 157
151–155 147
156–160 151
161–165 159
166–170 137 166
171–175 128
176–180 126
181–185 98
186–190 114
191–195 100
196–200 90
201–205 71
206–210 98
211–215 70
216–220 86
221–225 61
226–230 58
231–235 53
236–240 64
241–245 39
246–250 46
251–255 51
256–260 36
261–265 44
266–270 35
271–275 30
276–280 33
281–285 35
286–290 36
291–295 26
296–300 26
301–305 31
306–310 30
311–315 21
316–320 29
321–325 14
326–330 15
331–335 15
336–340 17
341–345 15
346–350 12
351–355 17
356–360 18
361–365 12
366–370 11
371–375 6
376–380 6
381–385 11
386–390 9
391–395 10
396–400 8
401–405 4
406–410 9
411–415 11
416–420 4
421–425 7
426–430 4
431–435 3
436–440 5
441–445 8
446–450 6
451–455 7
456–460 5
461–465 6
466 2
467+ 99
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Tobias G. Köllner 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 Tobias G. Köllner sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 80 bars. Horizontal axis: D-Index, 30 to 109+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 34 D-Index. The last bar groups every scientist with 109 D-Index or more. The highlighted bar, 61 D-Index, is where this scientist sits. 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: 61 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index Scientists This scientist
30 200
31 236
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229
40 232
41 230
42 228
43 219
44 193
45 164
46 158
47 143
48 131
49 127
50 122
51 122
52 110
53 102
54 98
55 79
56 85
57 88
58 91
59 62
60 61
61 59 61
62 54
63 61
64 59
65 58
66 41
67 49
68 39
69 32
70 40
71 47
72 38
73 28
74 29
75 28
76 22
77 21
78 25
79 26
80 19
81 16
82 12
83 16
84 14
85 11
86 17
87 13
88 10
89 12
90 18
91 16
92 16
93 17
94 12
95 8
96 9
97 9
98 11
99 12
100 5
101 8
102 4
103 11
104 5
105 9
106 7
107 4
108 8
109+ 99
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Overview

What is he best known for?

The fields of study he is best known for:

  • Gene
  • Botany
  • Enzyme

His main research concerns Botany, Terpene, Biochemistry, Gene and Sesquiterpene. His research ties Agronomy and Botany together. His Agronomy research includes themes of PEST analysis, Biological pest control and Crown.

His Terpene research is multidisciplinary, incorporating perspectives in Phylogenetics and Biosynthesis. His Sesquiterpene study incorporates themes from Terpene synthase N terminal domain and ATP synthase. Tobias G. Köllner works mostly in the field of Terpene synthase N terminal domain, limiting it down to topics relating to Amino acid and, in certain cases, Active site and Stereochemistry, as a part of the same area of interest.

His most cited work include:

  • Recruitment of entomopathogenic nematodes by insect-damaged maize roots (957 citations)
  • Monoterpene and sesquiterpene synthases and the origin of terpene skeletal diversity in plants. (609 citations)
  • The products of a single maize sesquiterpene synthase form a volatile defense signal that attracts natural enemies of maize herbivores (417 citations)

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

His scientific interests lie mostly in Botany, Terpene, Biochemistry, Gene and Sesquiterpene. He performs integrative study on Botany and Nicotiana attenuata in his works. His studies in Terpene integrate themes in fields like Linalool, Enzyme, Monoterpene and Terpenoid.

His Biosynthesis, ATP synthase, Populus trichocarpa, Amino acid and Plant defense against herbivory study are his primary interests in Biochemistry. His Sesquiterpene study frequently intersects with other fields, such as Poaceae. Tobias G. Köllner has included themes like Jasmonic acid, Spodoptera littoralis, Larva and Agronomy in his Herbivore study.

He most often published in these fields:

  • Botany (48.12%)
  • Terpene (35.34%)
  • Biochemistry (31.58%)

What were the highlights of his more recent work (between 2018-2021)?

  • Botany (48.12%)
  • Biochemistry (31.58%)
  • Gene (23.31%)

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

Tobias G. Köllner mainly focuses on Botany, Biochemistry, Gene, Terpene and Herbivore. His study in the field of Types of tobacco, Lymantria dispar, Black poplar and Sesquiterpene is also linked to topics like Nicotiana attenuata. The Sesquiterpene study combines topics in areas such as Plant species, Transcriptome, Linalool, Monoterpene and Plant defense against herbivory.

The various areas that Tobias G. Köllner examines in his Terpene study include Amino acid, Iridoid, Enzyme, Metabolite and Methyl jasmonate. The study incorporates disciplines such as Stereochemistry and Escherichia coli in addition to Enzyme. The concepts of his Populus trichocarpa study are interwoven with issues in ATP synthase and Gene family.

Between 2018 and 2021, his most popular works were:

  • Chemical convergence between plants and insects: biosynthetic origins and functions of common secondary metabolites. (31 citations)
  • A light-dependent molecular link between competition cues and defence responses in plants. (23 citations)
  • Root volatiles in plant–plant interactions I: High root sesquiterpene release is associated with increased germination and growth of plant neighbours (21 citations)

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

  • Gene
  • Botany
  • Enzyme

His primary areas of investigation include Botany, Terpene, Gene, Genetics and Biochemistry. His work on Sesquiterpene, Iridoid and Linalool as part of general Botany study is frequently linked to Nicotiana attenuata, bridging the gap between disciplines. He interconnects Chemical defense, Metabolite, Insect, Chemical mimicry and Convergent evolution in the investigation of issues within Terpene.

His Heterologous expression and Horizontal gene transfer study, which is part of a larger body of work in Gene, is frequently linked to Red algae, bridging the gap between disciplines. His work on Phylogenetic tree as part of general Genetics study is frequently connected to Innate immune system, therefore bridging the gap between diverse disciplines of science and establishing a new relationship between them. His specific area of interest is Biochemistry, where he studies Biosynthesis.

Best Publications

  • Recruitment of entomopathogenic nematodes by insect-damaged maize roots

    Sergio Rasmann;Tobias G. Köllner;Jörg Degenhardt;Ivan Hiltpold

  • Monoterpene and sesquiterpene synthases and the origin of terpene skeletal diversity in plants.

    Jörg Degenhardt;Tobias G. Köllner;Jonathan Gershenzon

  • The products of a single maize sesquiterpene synthase form a volatile defense signal that attracts natural enemies of maize herbivores

    Christiane Schnee;Tobias G. Köllner;Matthias Held;Ted C. J. Turlings

  • A Maize (E)-β-Caryophyllene Synthase Implicated in Indirect Defense Responses against Herbivores Is Not Expressed in Most American Maize Varieties

    Tobias G. Köllner;Matthias Held;Claudia Lenk;Ivan Hiltpold

  • Restoring a maize root signal that attracts insect-killing nematodes to control a major pest

    Jörg Degenhardt;Ivan Hiltpold;Tobias G. Köllner;Monika Frey

  • The Variability of Sesquiterpenes Emitted from Two Zea mays Cultivars Is Controlled by Allelic Variation of Two Terpene Synthase Genes Encoding Stereoselective Multiple Product Enzymes

    Tobias G. Köllner;Christiane Schnee;Jonathan Gershenzon;Jörg Degenhardt

  • Natural Variation in Maize Aphid Resistance Is Associated with 2,4-Dihydroxy-7-Methoxy-1,4-Benzoxazin-3-One Glucoside Methyltransferase Activity

    Lisa N. Meihls;Vinzenz Handrick;Gaetan Glauser;Hugues Barbier

  • The maize gene terpene synthase 1 encodes a sesquiterpene synthase catalyzing the formation of (E)-beta-farnesene, (E)-nerolidol, and (E,E)-farnesol after herbivore damage.

    Christiane Schnee;Tobias G. Köllner;Jonathan Gershenzon;Jörg Degenhardt

  • The maize W22 genome provides a foundation for functional genomics and transposon biology

    Nathan M. Springer;Sarah N. Anderson;Carson M. Andorf;Kevin R. Ahern

  • Molecular and genomic basis of volatile-mediated indirect defense against insects in rice

    Joshua S. Yuan;Tobias G. Köllner;Greg Wiggins;Jerome Grant

  • Origin and early evolution of the plant terpene synthase family

    Unknown

  • A specialist root herbivore exploits defensive metabolites to locate nutritious tissues

    Christelle A. M. Robert;Nathalie Veyrat;Gaétan Glauser;Guillaume Marti

  • Identification and Regulation of TPS04/GES, an Arabidopsis Geranyllinalool Synthase Catalyzing the First Step in the Formation of the Insect-Induced Volatile C16-Homoterpene TMTT

    Marco Herde;Katrin Gärtner;Tobias G. Köllner;Benjamin Fode

  • The Eucalyptus terpene synthase gene family

    Carsten Kulheim;Amanda Padovan;Charles Hefer;Sandra T. Krause

  • Herbivore-induced volatile emission in black poplar: regulation and role in attracting herbivore enemies

    Andrea Clavijo Mccormick;Sandra Irmisch;Andreas Reinecke;G. Andreas Boeckler

  • Colonization by arbuscular mycorrhizal and endophytic fungi enhanced terpene production in tomato plants and their defense against a herbivorous insect

    Gitika Shrivastava;Bonnie H. Ownley;Robert M. Augé;Heather Toler

  • The sesquiterpene hydrocarbons of maize (Zea mays) form five groups with distinct developmental and organ-specific distributions

    Tobias G. Köllner;Christiane Schnee;Jonathan Gershenzon;Jörg Degenhardt

  • Chemical convergence between plants and insects: biosynthetic origins and functions of common secondary metabolites.

    Franziska Beran;Tobias G. Köllner;Jonathan Gershenzon;Dorothea Tholl

  • Herbivore-induced poplar cytochrome P450 enzymes of the CYP71 family convert aldoximes to nitriles which repel a generalist caterpillar

    Sandra Irmisch;Andrea Liliana Clavijo McCormick;Jan Günther;Axel Schmidt

  • Defensive weapons and defense signals in plants: some metabolites serve both roles

    Daniel Maag;Matthias Erb;Tobias G. Köllner;Jonathan Gershenzon

  • Two Herbivore-Induced Cytochrome P450 Enzymes CYP79D6 and CYP79D7 Catalyze the Formation of Volatile Aldoximes Involved in Poplar Defense

    Sandra Irmisch;Andrea Liliana Clavijo McCormick;Andreas Boeckler;Axel Schmidt

  • Nonseed plant Selaginella moellendorfii has both seed plant and microbial types of terpene synthases

    Guanglin Li;Tobias G. Köllner;Yanbin Yin;Yifan Jiang

  • The role of abscisic acid and water stress in root herbivore-induced leaf resistance.

    Matthias Erb;Tobias G. Köllner;Jörg Degenhardt;Claudia Zwahlen

Frequent Co-Authors

Jonathan Gershenzon
Jonathan Gershenzon Max Planck Institute for Chemical Ecology
Sybille B. Unsicker
Sybille B. Unsicker Max Planck Society
Jeroen S. Dickschat
Jeroen S. Dickschat University of Bonn
Matthias Erb
Matthias Erb University of Bern
Ted C. J. Turlings
Ted C. J. Turlings University of Neuchâtel
Edward S. Buckler
Edward S. Buckler Cornell University
Wilhelm Boland
Wilhelm Boland Max Planck Society
Michael Reichelt
Michael Reichelt Max Planck Society
Ian T. Baldwin
Ian T. Baldwin Max Planck Institute for Chemical Ecology
Gane Ka-Shu Wong
Gane Ka-Shu Wong University of Alberta

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