Acidovorax citrulli ZJU (b-proteobacteria) genome assembly Acidovorax avenae subsp. citrulli from Institute of Biotechnology [GCA_ Bacterial fruit blotch is caused by Acidovorax avenae subsp. citrulli. The disease was first detected in Florida in and was subsequently detected in South. Acidovorax citrulli is the causal agent of bacterial fruit blotch and seedling blight Synomyms: Acidovorax avenae subsp. citrulli, Pseudomonas.

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Although, there is currently no evidence of systemic A.

Acidovorax citrulli (fruit blotch)

Occurrence of watermelon bacterial fruit blotch and identification of its pathogens. The seedling and leaf symptoms caused by A. Chemical Control Applications of copper-containing fungicides at the full recommended rates have reduced the incidence of fruit blotch symptoms when applications were initiated prior to fruit set Hopkins, ; Hopkins, Control of watermelon fruit blotch by seed heat treatment.

Prevention and Control Top of page Host-Plant Resistance Fruit of some cultivars are more susceptible to bacterial fruit blotch than others. Watermelon, cantaloupe and honeydew melons appear the most susceptible, with both foliar symptoms and blotch symptoms on the fruit Isakeit et al. A new bacterial disease of watermelon in Tnrkiye: Eliminate wild cucurbits and volunteer cucurbits near transplant houses and production fields.


Overhead irrigation of seedlings resulted in greater levels of pathogen spread. Plant Disease, 76 5: Alternative hosts can also serve as the source of inoculum into cucurbit fields.

Risk of Introduction Top of page There are no known quarantine restrictions on A. Avenxe conditions are common during the summer. The watermelon bacterium and other subspecies of P.

Journal of Phytopathology, 2: Fitopatologia Brasileira, 30 3: A seedborne bacterium isolated from watermelon. The fruit blotch bacterium may be introduced into a field from infested seed, infected transplants, contaminated volunteer crop cucurbits, or infected wild cucurbits.

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These two bacterial pathogens can avsnae distinguished by the production of fluorescent pigments on King’s medium B agar. Plant Disease, 87 There are no pictures available for this datasheet If you can supply pictures for this datasheet please contact: Careers In Plant Pathology.

In a recent study, Dutta et al. A negative assay is adidovorax proof that the seedlot is free of the bacterium, but does indicate that disease was not detected in a representative sample of the seedlot.

Acidovorax citrulli – Wikipedia

Plant Disease, 97 3: Development of serological detection technique for bacterial fruit blotch Acidovorax avenae subsp. Inspect cucurbit transplants for small, dark brown lesions, often surrounded by a band of chlorotic tissue. First report of bacterial fruit blotch of watermelon in Oregon. One commercial seed lot was reported, in a grow-out test, to have one infected seed in Rane and Latin, Plant Disease, 80 5: Decontaminate irrigation or mechanical equipment before moving it from an infested field to a noninfested field.


The role of bacterial motility in watermelon blossom colonization and seed infestation by Acidovorax avenae subsp citrulli, the causal agent of bacterial fruit blotch. Numerical analysis and determinative tests for nonfluorescent plant-pathogenic Pseudomonas spp. Impact Top of page In the spring of in the USA, bacterial fruit blotch of watermelon first occurred in commercial watermelon fields acicovorax Florida and, as the season progressed, the disease was observed in South Carolina, North Carolina, Maryland, Delaware, and Indiana Somodi et al.

Bacterial fruit blotch caused by Acidovorax avenae subsp. Much of the watermelon production in the USA is still from direct-seeded plants, but transplants are rapidly gaining in popularity.