Entries by Staff

Candidatus Liberibacter solanacearum modelling goes to the field

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Members of the Work Package 8 of POnTE Project met in Valencia from 16 to 19 of January 2017 to discuss the modelling activities on CaLsol. Researchers from Wageningen University and IVIA visited the production fields of Agricola Villena in Alicante. Fields of carrot, parsnip and celery were visited with the technical managers of Agrovillena. On-site information […]

Host specificity of pecan strains of Xylella fastidiosa subsp. multiplex

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ORIGINAL ARTICLE Dr. Randy Sanderlin Louisiana State University Agricultural Center, LSU Pecan Research-Extension Station, P. O. Box 5519, Shreveport, Louisiana, United States, 71135, 318-797-8034, 318-676-7371; Abstract Pecan (Carya illinoinensis) bacterial leaf scorch disease, caused by Xylella fastidiosa subsp. multiplex, causes defoliation and reduces terminal growth and nut yield. The pathogen is transmitted to pecan by […]

In vitro determination of extracellular proteins from Xylella fastidiosa

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ORIGINAL ARTICLE Juliano S. Mendes1, André S. Santiago1, Marcelo A. S. Toledo1, Maria A. C. Horta1, Alessandra A. de Souza2, Ljubica Tasic3 and Anete P. de Souza1,4* 1Centro de Biologia Molecular e Engenharia Genética, Universidade Estadual de Campinas, Campinas, Brazil. 2Instituto Agronômico, Centro de Citricultura Sylvio Moreira, Cordeirópolis, Brazil. 3Departamento de Química Orgânica, Instituto de Química, Universidade […]

Search for reservoirs of ‘Candidatus Liberibacter solanacearum’ and mollicutes in weeds associated with carrot and celery crops

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ORIGINAL ARTICLE Ana Alfaro-Fernández1, Mercedes Verdeguer1, Francisco Rodríguez-León1, Isabel Ibáñez1, Desamparados Hernández1, Gabriela R. Teresani2,3, Edson Bertolini2,4, Mariano Cambra2, María Isabel1 1Instituto Agroforestal Mediterráneo Universidad Politécnica de Valencia (IAM-UPV), Valencia, Spain. 2Instituto Valenciano de Investigaciones Agrarias (IVIA), Protección vegetal y Biotecnología, Moncada, Spain. 3Fitossanidade, Instituto Agronômico de Campinas APTA-IAC, Campinas, Brazil. 4Departamento de Fitossanidade. Faculdade de Agronomia Universidade […]

Efficacy of fungicides on Hymenoscyphus fraxineus and their potential for control of ash dieback in forest nurseries

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ORIGINAL ARTICLE M. Hrabětová, K. Černý, D. Zahradník, L. Havrdová Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Publ. Res. Inst., Průhonice, Czech Republic Abstract Twenty-six commercial formulations of fungicides at six concentrations were evaluated in vitro for their efficacy on mycelial growth of Hymenoscyphus fraxineus (anamorph Chalara fraxinea). The results are presented as EC50, EC90 and […]

The DinJ/RelE toxin-antitoxin system suppresses bacterial proliferation and virulence of Xylella fastidiosa in grapevine

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ORIGINAL ARTICLE Dr. Lindsey Burbank USDA-ARS, Crop Diseases Pests and Genetics Research Unit, 9611 S Riverbend Ave, Parlier, California, United States, 93648; lindsey.burbank@ars.usda.gov Dr. Drake C Stenger USDA-ARS, 9611 S. Riverbend Ave, Parlier, California, United States, 93648 drake.stenger@ars.usda.gov Abstract Xylella fastidiosa, the causal agent of Pierce’s disease of grapes, is a slow-growing, xylem limited, bacterial […]