The Plant Pathology Journal (2018) 34, 1-10

Tanahiri García-González, Hilda Karina Sáenz-Hidalgo, Hilda Victoria Silva-Rojas, Carlos Morales-Nieto, Taca Vancheva, Ralf Koebnik and Graciela Dolores Avila-Quezada (2018)
Enterobacter cloacae, an emerging plant-pathogenic bacterium affecting chili pepper seedlings
The Plant Pathology Journal 34 (1), 1-10
Abstract: 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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Ralf Koebnik

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Enterobacter cloacae	Green pepper/chilli (Capsicum)	Mexico