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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 49 2241 2067 71 70 150 10001

Bernard Dreyfus publications per year

The chart shows the history of publications by Bernard Dreyfus between 1980 and 2020, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Bernard Dreyfus published across 41 years, from 1980 to 2020, averaging 3.9 papers a year. Output peaked at 12 publications in 1998. 1 of the 161 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1980 to 2020. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 1998. 1980: 1 publication 1981: 3 publications 1982: 4 publications 1983: 9 publications 1984: 4 publications 1985: 2 publications 1986: 0 publications 1987: 5 publications 1988: 3 publications 1989: 1 publication 1990: 0 publications 1991: 2 publications 1992: 4 publications 1993: 5 publications 1994: 5 publications 1995: 3 publications 1996: 8 publications 1997: 5 publications 1998: 12 publications 1999: 5 publications 2000: 9 publications 2001: 7 publications 2002: 8 publications 2003: 1 publication 2004: 8 publications 2005: 7 publications 2006: 6 publications 2007: 7 publications 2008: 8 publications 2009: 4 publications 2010: 2 publications 2011: 2 publications 2012: 2 publications 2013: 5 publications 2014: 3 publications 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 1 publication
1980 2020

161 publications in total across all disciplines

View publications per year as a table
Bernard Dreyfus: publications per year, 1980 to 2020
Year Publications
1980 1
1981 3
1982 4
1983 9
1984 4
1985 2
1986 0
1987 5
1988 3
1989 1
1990 0
1991 2
1992 4
1993 5
1994 5
1995 3
1996 8
1997 5
1998 12
1999 5
2000 9
2001 7
2002 8
2003 1
2004 8
2005 7
2006 6
2007 7
2008 8
2009 4
2010 2
2011 2
2012 2
2013 5
2014 3
2015 0
2016 0
2017 0
2018 0
2019 0
2020 1
Total 161
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Bernard Dreyfus 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 Bernard Dreyfus 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, 146–150 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: 150 publications — 58th percentile

58% 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
146–150 157 150
151–155 147
156–160 151
161–165 159
166–170 137
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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Bernard Dreyfus 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 Bernard Dreyfus 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, 49 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: 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.

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 49
50 122
51 122
52 110
53 102
54 98
55 79
56 85
57 88
58 91
59 62
60 61
61 59
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:

  • Botany
  • Ecology
  • Bacteria

Bernard Dreyfus spends much of his time researching Botany, Bradyrhizobium, Root nodule, Rhizobia and Azorhizobium. His research in Botany intersects with topics in Mesorhizobium, Bradyrhizobium japonicum, 16S ribosomal RNA, Sinorhizobium and Rhizobium. In his study, which falls under the umbrella issue of Rhizobium, Azorhizobium caulinodans, Sesbania rostrata and Sesbania is strongly linked to Rhizobium galegae.

He works mostly in the field of Bradyrhizobium, limiting it down to concerns involving Proteobacteria and, occasionally, Burkholderia, Dalbergia and Methylobacterium radiotolerans. His Root nodule research is multidisciplinary, relying on both Aeschynomene and Rhizobacteria. His Rhizobia research incorporates elements of Oryza, Oryza glaberrima, Oryza sativa and Rhizobiaceae.

His most cited work include:

  • Legumes Symbioses: Absence of Nod Genes in Photosynthetic Bradyrhizobia (465 citations)
  • Methylotrophic Methylobacterium bacteria nodulate and fix nitrogen in symbiosis with legumes. (414 citations)
  • Characterization of Azorhizobium caulinodans gen. nov., sp. nov., a stem-nodulating nitrogen-fixing bacterium isolated from Sesbania rostrata (373 citations)

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

His main research concerns Botany, Rhizobia, Nitrogen fixation, Bradyrhizobium and Symbiosis. His biological study spans a wide range of topics, including Rhizobiaceae, Rhizobium and Root nodule. His work on Nod factor as part of general Rhizobia research is often related to Sustainable management and Beneficial use, thus linking different fields of science.

His study on Nitrogen fixation also encompasses disciplines like

  • Agronomy, which have a strong connection to Soil water and Rhizosphere,
  • Microbiology that intertwine with fields like Sesbania and Bacteria. His research integrates issues of Aeschynomene, Bradyrhizobium japonicum, 16S ribosomal RNA and Fabaceae in his study of Bradyrhizobium. His Azorhizobium study combines topics in areas such as Sinorhizobium and Rhizobium galegae.

He most often published in these fields:

  • Botany (61.11%)
  • Rhizobia (25.93%)
  • Nitrogen fixation (24.07%)

What were the highlights of his more recent work (between 2007-2020)?

  • Botany (61.11%)
  • Rhizobia (25.93%)
  • Ecology (9.26%)

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

Bernard Dreyfus mainly focuses on Botany, Rhizobia, Ecology, Acacia and Symbiosis. His Botany research includes elements of Bradyrhizobium, Phylogenetic tree, Pisolithus, Mycorrhiza and Root nodule. The study incorporates disciplines such as Officinalis, Bradyrhizobium japonicum, Host and Pterocarpus in addition to Bradyrhizobium.

His work deals with themes such as Natural resource and Domestication, which intersect with Rhizobia. His study looks at the intersection of Symbiosis and topics like Nitrogen fixation with Root hair, Crotalaria, Rhizobium and Acacia auriculiformis. His Methylobacterium study incorporates themes from Fabaceae and Rhizobiaceae.

Between 2007 and 2020, his most popular works were:

  • Multi-host ectomycorrhizal fungi are predominant in a Guinean tropical rainforest and shared between canopy trees and seedlings. (52 citations)
  • Nurse shrubs increased the early growth of Cupressus seedlings by enhancing belowground mutualism and soil microbial activity (38 citations)
  • The Exotic Legume Tree Species Acacia holosericea Alters Microbial Soil Functionalities and the Structure of the Arbuscular Mycorrhizal Community (34 citations)

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

  • Botany
  • Ecology
  • Bacteria

Bernard Dreyfus mainly investigates Botany, Rhizobia, Pisolithus, Root nodule and Mycorrhiza. Bernard Dreyfus studies Biofertilizer which is a part of Botany. His Rhizobia research incorporates themes from Aeschynomene, Bradyrhizobium and Phylogenetic tree.

The various areas that Bernard Dreyfus examines in his Pisolithus study include Soil classification, Mycorrhizosphere, Phosphate solubilizing bacteria and Soil conditioner. His work deals with themes such as Rhizobacteria and Rhizobium leguminosarum, which intersect with Root nodule. His work carried out in the field of Mycorrhiza brings together such families of science as Acacia, Acacia holosericea, Resistance, Rhizosphere and Soil microbiology.

Best Publications

  • Methylotrophic Methylobacterium bacteria nodulate and fix nitrogen in symbiosis with legumes.

    Abdourahmane Sy;Eric Giraud;Philippe Jourand;Nelly Garcia

  • Legumes Symbioses: Absence of Nod Genes in Photosynthetic Bradyrhizobia

    Eric Giraud;Lionel Moulin;David Vallenet;Valérie Barbe

  • Characterization of Azorhizobium caulinodans gen. nov., sp. nov., a stem-nodulating nitrogen-fixing bacterium isolated from Sesbania rostrata

    Bernard Dreyfus;Jean-Louis Garcia;Monique Gillis

  • Nodulation of legumes by members of the β-subclass of Proteobacteria

    Unknown

  • Polyphasic Taxonomy of Rhizobia: Emendation of the Genus Sinorhizobium and Description of Sinorhizobium meliloti comb. nov., Sinorhizobium saheli sp. nov., and Sinorhizobium teranga sp. nov.

    Philippe De Lajudie;Anne Willems;Bruno Pot;Dirk Dewettinck

  • Photosynthetic bradyrhizobia are natural endophytes of the African wild rice Oryza breviligulata.

    Clémence Chaintreuil;Eric Giraud;Yves Prin;Jean Lorquin

  • Methylobacterium nodulans sp nov., for a group of aerobic, facultatively methylotrophic, legume root-nodule-forming and nitrogen-fixing bacteria

    Philippe Jourand;Eric Giraud;Gilles Béna;Abdoulaye Sy

  • Characterization of tropical tree rhizobia and description of Mesorhizobium plurifarium sp. nov

    P de Lajudie;A Willems;G Nick;F Moreira

  • Allorhizobium undicola gen. nov., sp. nov., nitrogen-fixing bacteria that efficiently nodulate Neptunia natans in Senegal

    P de Lajudie;E Laurent-Fulele;A Willems;U Torck

  • Bacteriophytochrome controls photosystem synthesis in anoxygenic bacteria

    Eric Giraud;Joël Fardoux;Nicolas Fourrier;Laure Hannibal

  • Free-living Rhizobium strain able to grow on n(2) as the sole nitrogen source.

    B. L. Dreyfus;C. Elmerich;Y. R. Dommergues

  • Nitrogen-fixing nodules induced by Rhizobium on the stem of the tropical legume Sesbania rostrata

    Unknown

  • Diverse Bacteria Associated with Root Nodules of Spontaneous Legumes in Tunisia and First Report for nifH -like Gene within the Genera Microbacterium and Starkeya

    Frédéric Zakhia;Habib Jeder;Anne Willems;Monique Gillis

  • Nodulation of Acacia Species by Fast- and Slow-Growing Tropical Strains of Rhizobium

    Unknown

  • Characterisation of wild legume nodulating bacteria (LNB) in the infra-arid zone of Tunisia.

    Frédéric Zakhia;Habib Jeder;Odile Domergue;Anne Willems

  • Nitrogen-fixing nodules from rose wood legume trees (Dalbergia spp.) endemic to Madagascar host seven different genera belonging to α- and β-Proteobacteria

    R. Rasolomampianina;X. Bailly;R. Fetiarison;R. Rabevohitra

  • Phenotypic and genotypic characterization of bradyrhizobia nodulating the leguminous tree Acacia albida.

    Nicolas Dupuy;Anne Willems;Bruno Pot;Dirk Dewettinck

  • The last common ancestor of Sarcolaenaceae and Asian dipterocarp trees was ectomycorrhizal before the India–Madagascar separation, about 88 million years ago

    M. Ducousso;Gilles Béna;C. Bourgeois;Bernard Buyck

  • Photosynthetic bradyrhizobia from Aeschynomene spp. are specific to stem-nodulated species and form a separate 16S ribosomal DNA restriction fragment length polymorphism group.

    Flore Molouba;Jean Lorquin;Anne Willems;Bart Hoste

  • Agrobacterium bv. 1 strains isolated from nodules of tropical legumes.

    Philippe de Lajudie;Anne Willems;Giselle Nick;Salah Hassan Mohamed

  • Identification of the carotenoid pigment canthaxanthin from photosynthetic bradyrhizobium strains.

    Jean Lorquin;Flore Molouba;Bernard Dreyfus

  • Multi-host ectomycorrhizal fungi are predominant in a Guinean tropical rainforest and shared between canopy trees and seedlings.

    Abadala Gamby Diédhiou;Abadala Gamby Diédhiou;Marc-André Selosse;Antoine Galiana;Moussa Diabaté

  • Isolation and characterization of canthaxanthin biosynthesis genes from the photosynthetic bacterium Bradyrhizobium sp. strain ORS278.

    Laure Hannibal;Jean Lorquin;Nicolas Angles D'Ortoli;Nelly Garcia

  • Genetic Diversity of Acacia seyal Del. Rhizobial Populations Indigenous to Senegalese Soils in Relation to Salinity and pH of the Sampling Sites

    Diégane Diouf;Ramatoulaye Samba-Mbaye;Didier Lesueur;Amadou Tidiane Ba

  • Stem nodulation in legumes: diversity, mechanisms, and unusual characteristics

    C. Boivin;I. Ndoye;F. Molouba;P. de Lajudie

Frequent Co-Authors

Monique Gillis
Monique Gillis Ghent University
Anne Willems
Anne Willems Ghent University
Jean Thioulouse
Jean Thioulouse Claude Bernard University Lyon 1
Robin Duponnois
Robin Duponnois Montpellier SupAgro
Sergio Miana de Faria
Sergio Miana de Faria Brazilian Agricultural Research Corporation
Matthew D. Collins
Matthew D. Collins University of Reading
Karel Kersters
Karel Kersters Ghent University
Bruno Pot
Bruno Pot Vrije Universiteit Brussel
Bart Hoste
Bart Hoste Ghent University
Kristina Lindström
Kristina Lindström University of Helsinki

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