7 results on '"Veronique Wilson"'
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2. Characterization of Colletotrichum orchidophilum , the agent of black spot disease of vanilla
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Janice Minatchy, Carine Charron, Veronique Wilson, J. Hubert, Céline Jeandel, Renaud Ioos, Fabiola Chrysot, Scholastie Gerville, and Michel Grisoni
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0106 biological sciences ,0301 basic medicine ,Ascomycota ,biology ,Spots ,Physiology ,Inoculation ,food and beverages ,Fusarium proliferatum ,Plant Science ,Fungus ,030108 mycology & parasitology ,biology.organism_classification ,01 natural sciences ,03 medical and health sciences ,Horticulture ,Vanilla planifolia ,Colletotrichum ,Genetics ,Agronomy and Crop Science ,H20 - Maladies des plantes ,010606 plant biology & botany ,Black spot - Abstract
Black spot symptoms were reported on vanilla plants in Reunion Island in 2011. They have repeatedly reduced annual pod production by 10% to 30%. The disease is characterized by dark spots that appear in slight depressions on flowers, pods, leaves and stems. The spots then develop into broad clearly depressed necrotic plaques. Morphological and molecular analyses, as well as pathogenicity tests, identified the fungus Colletotrichum orchidophilum (Ascomycota) as the causal agent of the disease. Inoculation tests in controlled conditions confirmed that the two C. orchidophilum strains isolated from fruit lesions are pathogenic on the leaves and fruits of Vanilla planifolia (accessions CR0001 and CR0020). However, these strains induced symptoms only when the epidermis of leaves and fruits had been punctured by a needle. In the absence of injury, no symptom appeared. Colletotrichum arxii and Fusarium proliferatum (Ascomycota) are fungal species that are also frequently isolated from black spot lesions. However, they are not pathogenic to vanilla. This is the first report of C. orchidophilum in Reunion Island. It is also the first demonstration of C. orchidophilum's pathogenicity to an orchid. Simple preventive control measures were proposed to reduce the incidence of black spot disease in vanilla plots.
- Published
- 2018
3. First Report of Fusarium oxysporum f. sp. cubense Tropical Race 4 (TR4) Causing Banana Wilt in the Island of Mayotte
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Diane Mostert, Isabelle Cerf, Altus Viljoen, Camille Renault, Megan Ceris Matthews, Céline Fourrier-Jeandel, Veronique Wilson, Jaime Aguayo, Alexander Bart Folscher, and Renaud Ioos
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0106 biological sciences ,0301 basic medicine ,biology ,Wilting ,Fusarium oxysporum f.sp. cubense ,Plant Science ,030108 mycology & parasitology ,biology.organism_classification ,01 natural sciences ,Fusarium wilt ,Cavendish banana ,Conidium ,Chlamydospore ,03 medical and health sciences ,Horticulture ,Fusarium oxysporum ,Potato dextrose agar ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
Fusarium oxysporum f. sp. cubense (Foc) is a fungus causing Fusarium wilt of banana (Musa spp.). The fungus is divided into three races and 24 vegetative compatibility groups (VCG) of which VCG 01213/16, commonly known as Foc tropical race 4 (Foc TR4), is of particular concern. Foc TR4 severely affects Cavendish (AAA) bananas, which comprise about 50% of all bananas produced globally, as well as many varieties susceptible to the other races of Foc. The pathogen was restricted to Southeast Asia and Australia until 2012, where after it has been detected in the Middle East, Mozambique in Africa, and Colombia in South America (Viljoen et al. 2020). Here we report the first detection of Foc TR4 in the French department of Mayotte, located in the Indian Ocean. In September 2019, leaf yellowing and wilting symptoms were observed in individual plants of the banana subgroups Silk (AAB) (cv. "Kissoukari") and Bluggoe (ABB) (cv. "Baraboufaka"). The symptomatic individuals were found in private gardens in the village of Poroani in Southwest Mayotte (World Geodetic System [WGS] 12° 53' 31.83''S, 45° 8' 30.98" E). When the pseudostems of symptomatic plants were split open, dark red to brown vascular discoloration was observed. Pseudostem tissue samples were collected and identified as Foc TR4 with the real-time PCR assay developed by Aguayo et al. (2017). Sections of the pseudostem samples were surface sterilized and used to isolate the fungus on potato dextrose agar (PDA) medium. Isolates were identified as F. oxysporum based on cultural and morphological characteristics as described in Leslie and Summerell (2006), which included fluffy aerial mycelia on PDA and the presence of short monophialides conidigenous cells bearing microconidia arranged in false heads. Abundant chlamydospores were also produced on synthetic nutrient poor agar (SNA) media. Single-spored isolates were used to develop nit mutants for vegetative compatibility group (VCG) testing (Correll 1991; Puhalla 1985). The isolates were confirmed as VCG 01213/16 as formation of heterokaryons was obtained with the nit mutants of the universal Foc TR4 tester. Two VCG 01213/16 isolates were then selected for pathogenicity testing by inoculating 2-month-old tissue culture-derived Cavendish plants, using the method described by Viljoen et al. (2017). After 10 weeks, the Foc TR4-inoculated plants produced wilting symptoms and internal rhizome discoloration typical of Fusarium wilt. Fusarium oxysporum was re-isolated from the inoculated plants and identified as Foc TR4/VCG 01213/16 by PCR (Dita et al. 2010; Matthews et al. 2020), thereby fulfilling Koch's postulates. Local authorities have destroyed the infected plants, and have undertaken an extensive survey to determine the distribution of Foc TR4 on the island. Three additional positive cases, identified with the real-time PCR assay of Aguayo et al. (2017), were found in the localities of Koungou ([WGS] 12° 44' 03''S, 45° 12' 08" E) and Boueni ([WGS] 12° 54' 25''S, 45° 04' 43" E). These included infected Cavendish banana (AAA) plants (cv. "Kontrike"). This is the first time that Foc TR4 has been found on a banana variety other than Cavendish when newly detected in a country. Considering the proximity of Mayotte to other islands of the Comoros archipelago, Madagascar and the East African coast, where banana is considered an important staple, this report describes a serious threat to banana production and the livelihoods of people in the region.
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- 2021
4. A statistical approach to central monitoring of data quality in clinical trials
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Catherine Legrand, Erik Doffagne, Yves Tellier, Valerie Bee, Tomasz Burzykowski, Ursula Becker, François Beckers, Eric Genevois-Marlin, Veronique Wilson, Marc Buyse, David Venet, and UCL - SSH/IMMAQ/ISBA - Institut de Statistique, Biostatistique et Sciences Actuarielles
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Quality Control ,Pharmacology ,Research design ,business.industry ,Scientific Misconduct ,MEDLINE ,food and beverages ,Data interpretation ,General Medicine ,computer.software_genre ,Data science ,Clinical trial ,Statistical monitoring ,Text mining ,Bias ,Research Design ,Data Interpretation, Statistical ,Data quality ,Multicenter Studies as Topic ,Medicine ,Data mining ,Clinical Trials Data Monitoring Committees ,business ,computer ,Scientific misconduct - Abstract
Background Classical monitoring approaches rely on extensive on-site visits and source data verification. These activities are associated with high cost and a limited contribution to data quality. Central statistical monitoring is of particular interest to address these shortcomings. Purpose This article outlines the principles of central statistical monitoring and the challenges of implementing it in actual trials. Methods A statistical approach to central monitoring is based on a large number of statistical tests performed on all variables collected in the database, in order to identify centers that differ from the others. The tests generate a high-dimensional matrix of p-values, which can be analyzed by statistical methods and bioinformatic tools to identify extreme centers. Results Results from actual trials are provided to illustrate typical findings that can be expected from a central statistical monitoring approach, which detects abnormal patterns that were not (or could not have been) detected by on-site monitoring. Limitations Central statistical monitoring can only address problems present in the data. Important aspects of trial conduct such as a lack of informed consent documentation, for instance, require other approaches. The results provided here are empirical examples from a limited number of studies. Conclusion Central statistical monitoring can both optimize on-site monitoring and improve data quality and as such provides a cost-effective way of meeting regulatory requirements for clinical trials.
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- 2012
5. Analyse de risque phytosanitaire [i]Plasmopara halstedii[/i] agent responsable de la maladie du mildiou du tournesol
- Author
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Frederic Suffert, François Delmotte, Marc Delos, Valérie Grimault, Denis Tourvieille de Labrouhe, Patrick Vincourt, Veronique Wilson, Philippe Reignault, Sylvie Augustin, Nathalie Breda, Philippe Castagnone, Bruno Chauvel, Nicolas Desneux, Abraham ESCOBAR GUTIERREZ, Laurent Gentzbittel, Herve Jactel, Jean-Claude Laberche, Thomas Le Bourgeois, Guy Lemperiere, Didier Mugniery, Pierre Silvie, Stéphan Steyer, François Verheggen, Thierry Wetzel, BIOlogie GEstion des Risques en agriculture - Champignons Pathogènes des Plantes ( BIOGER-CPP ), Institut National de la Recherche Agronomique ( INRA ) -AgroParisTech, Santé Végétale ( SV ), Institut National de la Recherche Agronomique ( INRA ) -École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux ( ENITAB ), Direction Générale de l'Alimentation, Ministère de l'Agriculture, de l'Agroalimentaire et de la Forêt ( DGAL-SDQPV ), 0971 Gip Geves SNES Angers, Institut National de la Recherche Agronomique ( INRA ) -Accueil GEVES ( Accueil GEVES ) -Groupe d'étude et de controle des variétés et des semences ( GEVES ) -Gip Geves SNES Angers ( Gip Geves SNES Angers ), UE 1375 Phénotypage Au Champ des Céréales, Institut National de la Recherche Agronomique ( INRA ) -Santé des plantes et environnement ( S.P.E. ) -Biologie et Amélioration des Plantes ( BAP ) -Phénotypage Au Champ des Céréales ( PHACC ), Interactions plantes-microorganismes et santé végétale, Institut National de la Recherche Agronomique ( INRA ) -Université Nice Sophia Antipolis ( UNS ), Université Côte d'Azur ( UCA ) -Université Côte d'Azur ( UCA ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de la Santé des Végétaux, Unité de Mycologie, Agence Nationale de Sécurité Sanitaire de l’Alimentation, de l’Environnement et du Travail ( ANSES Maisons-Alfort ), Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale ( ULCO ), Unité de recherche Zoologie Forestière ( UZF ), Institut National de la Recherche Agronomique ( INRA ), Ecologie et Ecophysiologie Forestières [devient SILVA en 2018] ( EEF ), Institut National de la Recherche Agronomique ( INRA ) -Université de Lorraine ( UL ), Institut Sophia Agrobiotech [Sophia Antipolis] ( ISA ), Centre National de la Recherche Scientifique ( CNRS ) -Université Nice Sophia Antipolis ( UNS ), Université Côte d'Azur ( UCA ) -Université Côte d'Azur ( UCA ) -Institut National de la Recherche Agronomique ( INRA ), Agroécologie [Dijon], Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Unité de Recherche Pluridisciplinaire Prairies et Plantes Fourragères ( P3F ), Laboratoire Ecologie Fonctionnelle et Environnement ( EcoLab (ENSAT-Bat A) ), Institut National Polytechnique [Toulouse] ( INP ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Ecole Nationale Supérieure Agronomique de Toulouse-PRES Université de Toulouse-Centre National de la Recherche Scientifique ( CNRS ), Biodiversité, Gènes & Communautés ( BioGeCo ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bordeaux ( UB ), Université de Picardie Jules Verne ( UPJV ), Botanique et Modélisation de l'Architecture des Plantes et des Végétations ( UMR AMAP ), Centre de Coopération Internationale en Recherche Agronomique pour le Développement ( CIRAD ) -Institut national de la recherche agronomique [Montpellier] ( INRA Montpellier ) -Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche pour le Développement ( IRD [France-Sud] ), Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien, Institut de Recherche pour le Développement ( IRD ), Indépendant, UR Systèmes de cultures annuels, Centre de Coopération Internationale en Recherche Agronomique pour le Développement ( CIRAD ), Département Sciences du Vivant, Unité Biologie des nuisibles et biovigilance, Centre Wallon de Recherches Agronomiques ( CRA-W ), Faculté de Gembloux Agro-Bio Tech, Unité Entomologie fonctionnelle et évolutive, Université de Liège, Laboratoire de Virologie Végétale, RLP-Agroscience GmbH/Alplanta-Institute for Plant Research, ARP Mildiou du tournesol, Agence Nationale de Sécurité Sanitaire de l’Alimentation, de l’Environnement et du Travail, Absent, BIOlogie et GEstion des Risques en agriculture (BIOGER), AgroParisTech-Institut National de la Recherche Agronomique (INRA), Santé Végétale (SV), Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), Ministère de l'Agriculture, de l'Agroalimentaire et de la Forêt (DGAL-SDQPV), Institut National de la Recherche Agronomique (INRA)-Accueil GEVES (Accueil GEVES)-Groupe d'étude et de controle des variétés et des semences (GEVES)-Gip Geves SNES Angers (Gip Geves SNES Angers), Institut National de la Recherche Agronomique (INRA)-Santé des plantes et environnement (S.P.E.)-Biologie et Amélioration des Plantes (BAP)-Phénotypage Au Champ des Céréales (PHACC), Laboratoire des interactions plantes micro-organismes (LIPM), Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Unité de Mycologie, Laboratoire de la Santé des Végétaux, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES)-Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), Université du Littoral Côte d'Opale (ULCO), Unité de recherche Zoologie Forestière (URZF), Institut National de la Recherche Agronomique (INRA), Ecologie et Ecophysiologie Forestières [devient SILVA en 2018] (EEF), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Institut Sophia Agrobiotech (ISA), Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Unité de Recherche Pluridisciplinaire Prairies et Plantes Fourragères (P3F), Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Biodiversité, Gènes & Communautés (BioGeCo), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB), Université de Picardie Jules Verne (UPJV), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut de Recherche pour le Développement (IRD), Chercheur indépendant, Agroécologie et Intensification Durables des cultures annuelles (UPR AIDA), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Centre Wallon de Recherches Agronomiques (CRA-W), Contrat : 2012-SA-0159, Superviseur : Xavier Tassus, Commanditaire : Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (France), Type de commande : Commande avec contrat/convention/lettre de saisine, Date de signature : 2014-01-08, ProdInra, Archive Ouverte, Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Laboratoire de la Santé des Végétaux, Unité de Mycologie (LSV Nancy), Unité de recherche Zoologie Forestière (UZF), Institut Sophia Agrobiotech [Sophia Antipolis] (ISA), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), and Systèmes de Cultures Annuelles (UPR 102 SCA)
- Subjects
[SDV] Life Sciences [q-bio] ,plasmopara halstedii ,[ SDV ] Life Sciences [q-bio] ,[SDV]Life Sciences [q-bio] ,helianthus annuus ,analyse de risque phytosanitaire ,directive 2000/29/CE ,mildiou du tournesol ,tournesol - Abstract
absent
- Published
- 2014
6. An Optimized Duplex Real-Time PCR Tool for Sensitive Detection of the Quarantine Oomycete Plasmopara halstedii in Sunflower Seeds
- Author
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Denis Tourvieille de Labrouhe, Kathryn Webb, Renaud Ioos, C. Fourrier, Jean-Luc Schereffer, Veronique Wilson, Lab Sante Vegetaux, Unite Mycol, IFR 110, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), York YO41 1LZ, Food and Environment Research Agency, Génétique Diversité et Ecophysiologie des Céréales (GDEC), Institut National de la Recherche Agronomique (INRA)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP), French Agency for Food, Environmental and Occupational Health Safety (ANSES), Laboratoire de santé des végétaux (LSV Angers), Laboratoire de la santé des végétaux (LSV), Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES)-Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), and Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de la Recherche Agronomique (INRA)
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0106 biological sciences ,[SDV.SA]Life Sciences [q-bio]/Agricultural sciences ,Plant Science ,Biology ,Real-Time Polymerase Chain Reaction ,Sensitivity and Specificity ,01 natural sciences ,VALIDATION ,PINE ,03 medical and health sciences ,Plasmopara halstedii ,030304 developmental biology ,2. Zero hunger ,Oomycete ,0303 health sciences ,PATHOGENS ,business.industry ,FRUIT ,Reproducibility of Results ,food and beverages ,DNA ,biology.organism_classification ,DNA extraction ,Sunflower ,Obligate parasite ,Biotechnology ,Real-time polymerase chain reaction ,Oomycetes ,Seeds ,Helianthus ,Downy mildew ,Sunflower seed ,business ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
Ioos, R., Fourrier, C., Wilson, V.. Webb, K., Schereffer, J.-L., and Tourvieille de Labrouhe, D. 2012. An optimized duplex real-time PCR tool for sensitive detection of the quarantine oomycete Plasmopara halstedii in sunflower seeds. Phytopathology 102:908-917. Plasmopara halstedii, the causal agent of downy mildew of sunflower, is an oomycete listed as a quarantine pathogen. This obligate parasite resides in a quiescent state in seeds of sunflower and can be spread from seed production areas to areas of crop production by international seed trade. To prevent the spread or the introduction of potentially new genotypes or fungicide-tolerant strains, an efficient method to detect P halstedii in sunflower seed is required. This work reports the optimization of a real-time detection tool that targets the pathogen within sunflower seeds, and provides statistically validated data for that tool. The tool proved to be specific and inclusive, based on computer simulation and in vitro assessments, and could detect as few as 45 copies of target DNA. A fully optimized DNA extraction protocol was also developed starting from a sample of 1,000 sunflower seeds, and enabled the detection of
- Published
- 2012
7. First Report of Begonia Elatior Wilt Disease Caused by Fusarium foetens in France
- Author
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C. Fourrier, C. Saurat, C. Casset, Renaud Ioos, and Veronique Wilson
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Fusarium ,food.ingredient ,biology ,food and beverages ,Plant Science ,biology.organism_classification ,food ,Begonia ,Botany ,Agar ,Potato dextrose agar ,Cultivar ,Stem rot ,Agronomy and Crop Science ,Mycelium ,Wilt disease - Abstract
Fusarium foetens is a destructive vascular pathogen on Begonia, mainly on cultivars of Begonia elatior hybrids (Begonia × hiemalis), which has recently been identified in Europe and Northern America (1,3). This Fusarium species has been responsible for severe damage in the begonia flower industry (1) and is listed as an EPPO A2 quarantine pathogen since 2007. In May 2007, wilted potted plants of B. elatior showing chlorotic leaves and basal stem rot were observed in a nursery located in the west of France (La Flèche, Sarthe). Symptomatic foliar and basal stem pieces were plated on a Fusarium semi selective medium, dichloran chloramphenicol peptone agar (DCPA), and on malt agar medium supplemented with 100 ppm chloramphenicol. Homogeneous mycelium of a Fusarium species developed from both types of tissue and on both media, and was transferred to potato dextrose agar (PDA) and to spezieller nährstoffarmer agar (SNA) media for morphological examination. Microscope slides were then prepared by pressing gently a clear self-adhesive tape onto the surface covered by mycelium and sporodochia, which was further stained with lactic acid/methylene blue. Typical multiseptate (often three septa), hyaline, slightly curved Fusarium macroconidia 29.2 to 41.8 (32.5) × 3.6 to 4.5 (4.3) μm were collected in sporodochia. In the aerial mycelium, long and short conidiophores with mono- or polyphialidic cells bearing false heads of ellipsoidal microconidia were observed. In addition, a pungent distinctive odor was produced by the mycelium grown on PDA. These features were consistent with F. foetens (2). To support the diagnosis, total DNA was further extracted from the pure culture and a partial region of the translation elongation 1 (tef1) gene was amplified by PCR using EF1-EF2 primer pair (4). Nucleotide sequence was determined and deposited on GenBank (Accession No. JX298790). Analysis of the sequence by BLAST showed that it was 100% identical with all the available F. foetens sequences, which confirmed our morphological diagnosis. To our knowledge, this is the first official report of F. foetens in France. Since this first detection, F. foetens was again identified in 2010 in another nursery located in the Pays de la Loire on collapsed B. elatior. Approximately 15 to 20% of the Begonia plants showed typical Fusarium wilt symptoms and the infected lots were systematically destroyed. The origin of these infections could not be traced back since the mother plants tested negative. The disease is considered as eradicated in France but causes major economic losses to Begonia growers and marketers in regions where the disease is established (2). References: (1) H. Huvenne et al. Eur. J. Plant Pathol. 131:705, 2011. (2) H. J. Schroers et al. Mycologia 96:393, 2004. (3) X. L. Tian et al. Plant Dis. 94:1261, 2010. (4) D. Geiser. Eur. J. Plant Pathol. 110:473, 2004.
- Published
- 2013
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