Alain Toppan

1.5k total citations
19 papers, 1.0k citations indexed

About

Alain Toppan is a scholar working on Plant Science, Molecular Biology and Cell Biology. According to data from OpenAlex, Alain Toppan has authored 19 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Plant Science, 7 papers in Molecular Biology and 5 papers in Cell Biology. Recurrent topics in Alain Toppan's work include Plant-Microbe Interactions and Immunity (9 papers), Plant Pathogens and Fungal Diseases (5 papers) and Nematode management and characterization studies (4 papers). Alain Toppan is often cited by papers focused on Plant-Microbe Interactions and Immunity (9 papers), Plant Pathogens and Fungal Diseases (5 papers) and Nematode management and characterization studies (4 papers). Alain Toppan collaborates with scholars based in France, Switzerland and Germany. Alain Toppan's co-authors include Dominique Roby, Marie-Thérèse Esquerré-Tugayé, Marie‐Thérèse Esquerré‐Tugayé, A. Gadelle, Claude Lafitte, Dominique Mazau, Bruno Grèzes-Besset, Michel Schneider, Jean-Jacques Leguay and Denise Gerentes and has published in prestigious journals such as Nature Biotechnology, PLANT PHYSIOLOGY and Biochemical and Biophysical Research Communications.

In The Last Decade

Alain Toppan

19 papers receiving 914 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Alain Toppan France 14 861 527 125 119 54 19 1.0k
D. H. P. Barratt United Kingdom 15 1.2k 1.4× 537 1.0× 72 0.6× 36 0.3× 34 0.6× 34 1.4k
J.L. Norelli United States 11 798 0.9× 346 0.7× 52 0.4× 222 1.9× 19 0.4× 55 941
Lynn S. Dahleen United States 18 812 0.9× 556 1.1× 131 1.0× 116 1.0× 71 1.3× 48 915
Sung Han Ok South Korea 20 1.0k 1.2× 872 1.7× 80 0.6× 54 0.5× 50 0.9× 33 1.3k
Jacques Rouster France 13 752 0.9× 492 0.9× 73 0.6× 56 0.5× 55 1.0× 19 937
Michael B. Lanahan United States 13 1.8k 2.1× 1.0k 2.0× 112 0.9× 53 0.4× 34 0.6× 14 2.0k
Vicente Ramírez Spain 16 1.1k 1.2× 486 0.9× 47 0.4× 89 0.7× 67 1.2× 25 1.2k
Ken C. Goulter Australia 17 403 0.5× 317 0.6× 92 0.7× 83 0.7× 45 0.8× 25 674
Cécile Ribot France 13 1.3k 1.5× 544 1.0× 45 0.4× 229 1.9× 75 1.4× 15 1.5k
Yanmin Zhu United States 21 1.2k 1.4× 604 1.1× 67 0.5× 186 1.6× 42 0.8× 42 1.4k

Countries citing papers authored by Alain Toppan

Since Specialization
Citations

This map shows the geographic impact of Alain Toppan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Alain Toppan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Alain Toppan more than expected).

Fields of papers citing papers by Alain Toppan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alain Toppan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Alain Toppan. The network helps show where Alain Toppan may publish in the future.

Co-authorship network of co-authors of Alain Toppan

This figure shows the co-authorship network connecting the top 25 collaborators of Alain Toppan. A scholar is included among the top collaborators of Alain Toppan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Alain Toppan. Alain Toppan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

19 of 19 papers shown
1.
Pichon, Magalie, Denise Gerentes, Sabine Guillaumie, et al.. (2006). Variation in lignin and cell wall digestibility in caffeic acid O-methyltransferase down-regulated maize half-sib progenies in field experiments. Molecular Breeding. 18(3). 253–261. 20 indexed citations
2.
Molinier, Jean, Christophe Himber, Pilar Prieto‐Dapena, et al.. (2002). Modification of sunflower oil quality by seed‐specific expression of a heterologous Δ9‐stearoyl‐(acyl carrier protein) desaturase gene. Plant Breeding. 121(2). 108–116. 13 indexed citations
3.
Jeanneau, Mélanie, Denise Gerentes, Xavier Foueillassar, et al.. (2002). Improvement of drought tolerance in maize: towards the functional validation of the Zm-Asr1 gene and increase of water use efficiency by over-expressing C4–PEPC. Biochimie. 84(11). 1127–1135. 110 indexed citations
4.
Grèzes-Besset, Bruno, et al.. (1996). Field tolerance to fungal pathogens of Brassica napus constitutively expressing a chimeric chitinase gene. Nature Biotechnology. 14(5). 643–646. 167 indexed citations
5.
Pham-Delègue, M.H., et al.. (1995). Foraging behaviour of honey bees (Apis mellifera L.) on transgenic oilseed rape (Brassica napus L.var. oleifera). Transgenic Research. 4(4). 270–276. 36 indexed citations
6.
Gough, Clare, et al.. (1994). Structural organization of str 246C and str 246N, plant defense-related genes from Nicotiana tabacum. Plant Molecular Biology. 26(1). 515–521. 11 indexed citations
7.
Grèzes-Besset, Bruno, et al.. (1994). A Greenhouse Method to Assess Sunflower Resistance to Sclerotinia Root and Basal Stem Infections. Plant Breeding. 112(3). 215–222. 5 indexed citations
8.
Arnold, G. M., et al.. (1992). Impact of genetically modified rapeseed on insect pollinators (honeybees). 209–217. 5 indexed citations
9.
Nicole, M., et al.. (1991). Defense responses of Hevea brasiliensis to elicitors from root rot fungi. Canadian Journal of Botany. 69(8). 1819–1824. 8 indexed citations
10.
Roby, Dominique, Alain Toppan, & Marie‐Thérèse Esquerré‐Tugayé. (1988). Systemic induction of chitinase activity and resistance in melon plants upon fungal infection or elicitor treatment. Physiological and Molecular Plant Pathology. 33(3). 409–417. 35 indexed citations
11.
Roby, Dominique, Alain Toppan, & Marie‐Thérèse Esquerré‐Tugayé. (1987). Cell surfaces in plant micro-organism interactions. VIII. Increased proteinase inhibitor activity in melon plants in response to infection by Colletotrichum lagenarium or to treatment with an elicitor fraction from this fungus. Physiological and Molecular Plant Pathology. 30(3). 453–460. 30 indexed citations
12.
Roby, Dominique, A. Gadelle, & Alain Toppan. (1987). Chitin oligosaccharides as elicitors of chitinase activity in melon plants. Biochemical and Biophysical Research Communications. 143(3). 885–892. 134 indexed citations
13.
Roby, Dominique, Alain Toppan, & Marie-Thérèse Esquerré-Tugayé. (1986). Cell Surfaces in Plant-Microorganism Interactions. PLANT PHYSIOLOGY. 81(1). 228–233. 48 indexed citations
14.
Roby, Dominique, Alain Toppan, & Marie‐Thérèse Esquerré‐Tugayé. (1985). Cell Surfaces in Plant-Microorganism Interactions. PLANT PHYSIOLOGY. 77(3). 700–704. 80 indexed citations
15.
Toppan, Alain & Marie-Thérèse Esquerré-Tugayé. (1984). Cell Surfaces in Plant-Microorganism Interactions. PLANT PHYSIOLOGY. 75(4). 1133–1138. 98 indexed citations
16.
Toppan, Alain, Dominique Roby, & Marie-Thérèse Esquerré-Tugayé. (1982). Cell Surfaces in Plant-Microorganism Interactions. PLANT PHYSIOLOGY. 70(1). 82–86. 47 indexed citations
17.
Toppan, Alain & Dominique Roby. (1982). Activité chitinasique de plantes de melon infectées par Colletotrichum lagenarium ou traitées par l'éthylène. Agronomie. 2(9). 829–834. 17 indexed citations
18.
Esquerré-Tugayé, Marie-Thérèse, et al.. (1979). Cell Surfaces in Plant-Microorganism Interactions. PLANT PHYSIOLOGY. 64(2). 320–326. 146 indexed citations
19.
Toppan, Alain, et al.. (1976). An improved approach for the accurate determination of fungal pathogens in diseased plants. Physiological Plant Pathology. 9(3). 241–251. 14 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by D. H. P. Barratt Breakdown of academic impact, for papers by J.L. Norelli Breakdown of academic impact, for papers by Lynn S. Dahleen Breakdown of academic impact, for papers by Sung Han Ok Breakdown of academic impact, for papers by Jacques Rouster Breakdown of academic impact, for papers by Michael B. Lanahan Breakdown of academic impact, for papers by Vicente Ramírez Breakdown of academic impact, for papers by Ken C. Goulter Breakdown of academic impact, for papers by Cécile Ribot Breakdown of academic impact, for papers by Yanmin Zhu
Rankless by CCL
2026