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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EPPO Global Database

Acidovprax develop on inoculated foliage of squash, cucumbers and other cucurbits, but fruit symptoms have not been observed on these hosts. Subsequently, using a constitutive green fluorescent protein mutant of A. There are no known quarantine restrictions on A.

Molecular, physiological, and host-range characterization of Acidovorax avenae subsp. To our knowledge, this is the first report that A.

Many seed treatments have been reported to reduce BFB seedling transmission. PCR can be used to diagnose A. Sowell and Schaad reported that soaking seed known to be infested with A. The geographical origin of the bacterium is not known.

Acidovorax citrulli – Wikipedia

The disease cycle in most host crops apparently begins with contaminated seed Latin and Hopkins, Water-soaked lesions were observed on leaves of watermelon and waxgourd at 2 dpi and on sweet melon at 4 dpi on all inoculated plants but not on distilled water-sprayed control plants, indicating that A. Plant Disease, 74 1: Other studies have corroborated transmission of the pathogens by aveae. Distribution Maps of Plant Diseases, No.


Do not work in an infested field if the foliage is wet. First report of bacterial fruit blotch on melon caused by Acidovorax citrulli in California. This is a rapid tool for detecting pathogen from leaves, fruit, bacterial cultures, sbusp.citrulli seedlings exhibiting BFB symptoms. There are no pictures available for this datasheet If you can supply pictures for this datasheet please contact: Plant Disease, 92 5: Wild cucurbits can become infected with A.

Eliminate wild cucurbits and volunteer cucurbits near transplant houses and production fields.

Acidovorax citrulli (fruit blotch)

In this test, seeds are planted in a sterile potting mix in a greenhouse that is free from other sources of A. In addition, recently, it was reported that blossom or stigma inoculation resulted primarily in bacterial localization in the seed embryo, whereas pericarp inoculation resulted in bacterial deposition under the seed coat Dutta et al. In Indiana, initial symptoms in diseased seedlings in commercial greenhouses were limited to distinct foci Rane and Latin, For example, Feng et al.


Also, inspect young seedlings for rotting melting of the hypocotyl, resulting in a complete collapse of the emerging plant.

Contact Us – Report a Bad Link. Bacterial fruit blotch of watermelon.

The fruit blotch bacterium may be introduced into a field from infested seed, infected transplants, contaminated volunteer crop cucurbits, or infected wild cucurbits. Fitopatologia Brasileira, 24 2: Wall and Santos, ; Wall et al. Volunteer cucurbits that grow from previous crops that had fruit blotch can be naturally infected with the bacterium.

Nomura T; Shirakawa T, Rotting watermelon fruit often ooze a sticky, clear, amber substance or an effervescent exudate Latin and Hopkins, There is also another weakly pathogenic bacterium that produces symptoms in watermelon seedlings in the transplant house that could be confused with those produced by A.

Field spread of bacterial fruit blotch of watermelon. Incidence There are very few reports of the incidence of A. Reduced relative humidities after overhead subsp.citeulli resulted in diminished levels of disease.