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.

Author: Yozshurr Negis
Country: Reunion
Language: English (Spanish)
Genre: Sex
Published (Last): 28 April 2006
Pages: 323
PDF File Size: 5.61 Mb
ePub File Size: 6.19 Mb
ISBN: 592-2-78349-727-7
Downloads: 46797
Price: Free* [*Free Regsitration Required]
Uploader: Kigakasa

Bacterial blotch of melons caused by strains of Subdp.citrulli avenae subsp. Occurrence of a bacterial watermelon fruit blotch in Florida. Journal of Yunnan Agricultural University, 28 2: Bacterial fruit blotch of watermelon.

Spread of the bacteria may be reduced by practices that minimize or eliminate long periods when leaves are wet. Nomura T; Shirakawa T, Plant Disease, 84 3: First report of seedling blight of watermelon caused by Acidovorax citrulli transmitted from rootstock of pumpkin in China. This mechanism of seed infestation provides a possible explanation for the production of contaminated seedlots from fields with no visible BFB symptoms.

The bacterium was detected subsp.citgulli the USA plant introduction collection several years before it appeared in commercial watermelon Webb and Goth, With favourable weather, a few primary infection sites in a field can result in infection of all plants by the time of harvest. Taxonomic Tree Top of page Domain: Host-Plant Resistance Fruit of some cultivars subdp.citrulli more susceptible to bacterial fruit blotch than others.


A new bacterial disease of watermelon in the Mariana Islands. Sowell and Schaad reported that soaking seed known to be infested with A. However, bactericide treatment under vacuum was not as good as the normal treatment.

Acidovorax citrulli (fruit blotch)

PCR can be used to diagnose A. Bacteria landing on uninfected seedlings penetrate cotyledons and leaves via stomata and multiply rapidly in intercellular space. In warm, humid environments, symptoms can be observed days after seedling emergence. Journal of Plant Pathology, 89 2: Plant Disease, 81 1: Efficacy of hot water and bactericide treatments of watermelon seeds infested by Acidovorax avenae subsp.

Detection of Acidovorax avenae subsp. However, these reports do not necessarily indicate detection of the pathogen in seeds. In the field, BFB development is heavily dependent on rainfall and relative humidity.

Isolations are made from seedlings showing any symptoms of disease and A.

While fruit infection is initiated at anthesis, fruit symptoms do not develop until harvest maturity. Kawano T; Takahashi Y, Datasheet Acidovorax citrulli fruit blotch.

Fruit blotch was prevalent in Georgia in and was especially widespread in subso.citrulli, causing losses in thousands of hectares distributed over at least 10 states. Plant Disease, 82 3: This method takes days to complete. As a preventive treatment, biweekly applications of the full rate of copper or weekly applications at half the recommended rate of copper-containing fungicides may be used. Copper-containing fungicides reduce the spread of bacterial fruit blotch of watermelon in the greenhouse.


Using immunomagnetic separation and PCR, A. Production of cucurbit crop seed in areas with these alternate hosts of A. In the field, symptom acivovorax and spread of A.

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. Plant Disease, 84 4: Plant Disease, 81 6: Mancha-aquosa da melancia em Roraima.

EPPO Global Database

There have been many other attempts to develop seed treatments for Acidovorxx. One commercial seed lot was reported, in a grow-out test, to have one infected seed in Rane and Latin, Transmission of the watermelon blotch bacterium from infested seed to seedlings. Plant Disease Reporter,