Biodata Staff


Drissa Silué



Position held:

Principal Plant Pathologist

Year of Employment:

July 2011


  • May 16, 1997: Habilitation à Diriger des Recherches (HDR), University of Bretagne Occidentale, Brest, France ;

  • January 17, 1990: Utilisation de la reproduction sexuée de Magnaporthe grisea (HEBERT) BARR, agent de la pyriculariose du riz pour l'étude des relations de virulence-résistance spécifique. Thèse de Doctorat (PhD.), Université de Paris XI, Orsay Centre, France ;

  • September, 1986: Recherche de souches fertiles et compatibles de Pyricularia oryzae Cav., analyse de l'hérédité du pouvoir pathogène. DEA de Phytopathologie (Plant Pathology). University of Paris XI, Orsay Centre, France ;

  • September, 1985. Die resistenz verschidener Sorten und Zuchtlinien von Oryza glaberrima Steud gegenüber Pyricularia oryzae Cav. Diplomarbeit (agronomy degree) der Gesamthochschule Kassel, Universität des Landes Hessen FB 21, Witzenhausen, Germany (ex. FRG).


Plant Pathology, Disease Resistance Breeding, Disease Resistance Mechanisms, IPM, Seed production, Development of Vegetable Production Technologies.


  • Since July 1, 2011, Principal Plant Pathologist at AfricaRice;

  • June 2009-June 2011: Independent Consultant;

  • Associate Plant pathologist in-charge of Plant Protection at AVRDC-The World Vegetable Center, Regional Center for Africa, Arusha, Tanzania with from 2003 to 2007, in charge of Seed Health, Seed Production and distribution to partners;

  • Sept 1996- Sept 2002: Head of the Plant Pathology Laboratory of Bretagne Biotechnologie Végétale (BBV), St-Pol-de-Léon, France;

  • Oct 1991- August 1996: Plant Pathologist for Biotechnologie Végétale (BBV) hosted at the Ecole de Microbiologie et Sécurité Alimentaire de Brest (ESMSAB), France;

  • Oct 1989-Sept 1991: Lecturer (Plant Biology, mycology, bacteriology) at the Université de Bretagne Occidentale, Brest, France.

Major Achievements:

  • Realization in vitro and in vivo of the sexual stage with rice pathogenic blast (Magnaporthe grisea) isolates;

  • Identification of several disease resistance sources in O. glaberrima against rice blast, Brassica crops against ringspot disease (Mycosphaerella brassiciola) and downy mildew of Brassicas (Hyaloperonospora parasitica);

  • Documentation of two resistance genes in broccoli against downy mildew;

  • Documentation of a gene, Apf 1, of M. grisea involved in pathogencity and appressorium formation;

  • Demonstration that leaf disks of broccoli can successfully be used like seedlings for assessing resistance in Brassicas against downy mildew;

  • Elucidation of the roles of glucosinolates in cauliflower defence mechanisms against downy mildew of Brassicas;

  • Demonstration that selected potential disease resistance inducers including avirulent isolates can help protect Brassica crops against downy mildew and soft rot (Pseudomonas marginalis & P. fluorescens);

  • Training of over 70 BSc and MSc and 4 PhD students;

  • Training of several hundred of vegetable producer groups.

Selected publications:

  • Silué D., J.L. Notteghem. 1990. Production of perithecia of Magnaporthe grisea on rice plants. Mycological Research. 94, 1151-1152;

  • Silué D., J.L. Notteghem, D. Tharreau. 1992. Evidence of a gene-for-gene relationships in the couple Magnaporthe grisea-Oryza sativa. Phytopathology 82, 577-580;

  • Silué D., J.L. Notteghem, J. Chaume. 1992. Analyse de la résistance de Oryza glaberrima à la pyriculariose du riz. L'Agronomie tropicale, 46, 121-129;

  • Silué D., N. Nashaat, Y. Tirilly. 1996. The identification of Brassica oleracea and B. rapa expressing differential responses to Peronospora parasitica (downy mildew) at the cotyledon stage. Plant Disease 80, 142-144;

  • Lesur C., C. Monot, D. Silué, F. Guidet, Y. Tirilly. 1998. Assessment of variability in Mycosphaerella brassicicola from crucifers by means of RAPD markers. Journal of Plant Pathology 80, 105-113;

  • Ménard R., J.P. Larue, D. Silué, D. Thouvenot. 1999. Use of glucosinolates as markers for resistance/susceptibility in cauliflower to downy mildew of crucifers. Phytochemistry 52, 29-3;

  • Ziadi S., S. Barbedette, J.F. Godard, C. Monot, D. Le Corre, D. Silué. 2001. Production of pathogenesis-related (PR) proteins in the cauliflower (Brassica oleracea Var. botrytis) downy mildew (Peronospora parasitica) pathosystem treated with acibenzolar-S-methyl. Plant Pathology 50, 579-586;

  • Monot C., E. Pajot, D. Le Corre, D. Silué. 2002. Induction of systemic resistance in broccoli (Brassica oleracea var botrytis) against downy mildew (Peronospora parasitica) by avirulent isolates. Biological Control 24, 75-81.

  • Pajot E., D. Silué. 2005. Evidence that DL-3-aminobutyric acid and acibenzolar-S-methyl induce resistance against bacterial head rot disease of broccoli. Pest Management Science 61, 1110-1114;

  • Monot C., D. Silue. 2009. Comparison of the resistance and susceptibility to downy mildew [(Hyaloperonospora parasitica, Constant. (Pers. Ex Fr)] of nine Brassica olearacea accessions in laboratory, seedbed, and field screens. Euphytica 169 : 413 – 419;

  • Ojiewo C. O., I. S. Swai, M. O. Oluoch, D. Silué, R. Nono-Womdim, P. Hanson, T. C.. Wang, 2010. Development and Release of Late Blight-Resistant Tomato Varieties 'Meru' and 'Kiboko''. International Journal of Vegetable Science, 16: 134-147.

  • Monot C., D. Penguilly, D. Silué. 2010. First confirmed report of downy mildew caused by Hyaloperonospora parasitica on broccoli, cauliflower and Romanesco-type cauliflower heads in France. New Disease Reports 21, 5;

  • Gabriel JH, Pinel-Galzi A, Dibwe D, Cinyabuguma E, Kaboré A, Silué D, Hébrard E, Sere Y. 2013. First report of Rice yellow mottle virus on rice in Democratic Republic of Congo. Plant Disease. Accepted for publication