Publications des scientifiques de l'IRD

Garcia-Gonzalez T., Saenz-Hidalgo H. K., Silva-Rojas H. V., Morales-Nieto C., Vancheva T., Koebnik Ralf, Avila-Quezada G. D. (2018). Enterobacter cloacae, an emerging plant-pathogenic bacterium affecting chili pepper seedlings. Plant Pathology Journal, 34 (1), p. 1-10. ISSN 1598-2254.

Titre du document
Enterobacter cloacae, an emerging plant-pathogenic bacterium affecting chili pepper seedlings
Année de publication
2018
Type de document
Article référencé dans le Web of Science WOS:000424072000001
Auteurs
Garcia-Gonzalez T., Saenz-Hidalgo H. K., Silva-Rojas H. V., Morales-Nieto C., Vancheva T., Koebnik Ralf, Avila-Quezada G. D.
Source
Plant Pathology Journal, 2018, 34 (1), p. 1-10 ISSN 1598-2254
A previously unreported bacterial disease on chili pepper (Capsicum annuum L.) seedlings affecting as many as 4% of seedlings was observed in greenhouses in Chihuahua, Mexico (Delicias and Meoqui counties). Initial lesions appeared as irregular small spots on leaves and brown necrosis at margins tips were observed. Later, the spots became necrotic with a chlorotic halo. Advanced disease was associated with defoliation. A Gram negative, rod-shaped bacterium was isolated from diseased chili pepper seedlings. Three inoculation methods revealed that isolated strains produce foliage symptoms, similar to those observed in naturally infected seedlings. Pathogenic strains that caused symptoms in inoculated seedlings were re-isolated and identified to fulfill koch's postulate. Polyphasic approaches for identification including biochemical assays (API 20E and 50CH), carbon source utilization profiling (Biolog) and 16S rDNA, hsp60 and rpoB sequence analysis were done. Enterobacter cloacae was identified as the causal agent of this outbreak on chili pepper seedlings.
Plan de classement
Sciences du monde végétal [076]
Localisation
Fonds IRD [F B010072072]
Identifiant IRD
fdi:010072072
Contact