Erwinia carotovora subsp. atroseptica (Van Hall) (Eca), Erwinia carotovora subsp. carotovora (Dye) (Ecc), Erwinia chrysanthemi (Burkholder) (Ech) are pathogenic bacterias of potato crop, causing blackleg of stems in the field and soft rot of tubers in storage. During these last years, an outbreak of soft rot potatoes caused by the 3 Erwinia species has been observed in Belgium. Several methods ...

A bacterial isolate (SCU-B244T) was obtained in China from crickets (Teleogryllus occipitalis) living in cropland deserted for approximately 10 years. The isolated bacteria were Gram-negative, facultatively anaerobic, oxidase-negative rods. A preliminary analysis of the 16S rRNA gene sequence indicated that the strain belongs to either the genus Erwinia or Pantoea. Analysis of multilocus sequen...

Using a sequenced pectate lyase-encoding gene (pel gene), we developed a PCR test for Erwinia carotovora. A set of primers allowed the amplification of a 434-bp fragment in E. carotovora strains. Among the 89 E. carotovora strains tested, only the Erwinia carotovora subsp. betavasculorum strains were not detected. A restriction fragment length polymorphism (RFLP) study was undertaken on the amp...

Obligate bacterial symbionts are widespread in many invertebrates, where they are often confined to specialized host cells and are transmitted directly from mother to progeny. Increasing numbers of these bacteria are being characterized but questions remain about their population structure and evolution. Here we take a comparative genomics approach to investigate two prominent bacterial symbion...

Although Drosophila possesses potent immune responses, little is known about the microbial pathogens that infect Drosophila. We have identified members of the bacterial genus Erwinia that induce the systemic expression of genes encoding antimicrobial peptides in Drosophila larvae after ingestion. These Erwinia strains are phytopathogens and use flies as vectors; our data suggest that these stra...

Plant-associated Erwinia include pathogenic and nonpathogenic species. We report the 5.6-Mb genome sequence of Erwinia billingiae OSU19-1, isolated from a canker on a pear tree inoculated with Erwinia amylovora. OSU19-1 and a closely related European isolate, E. billingiae Eb661(T), share many similarities including 40 kb of plasmid sequence.

Genes coding for an endo-pectate lyase, an exo-pectate lyase, and an endopolygalacturonase of Erwinia carotovora subsp. carotovora Ecc71 were cloned in Escherichia coli HB101, using the cosmid pHC79. The products of the cloned pectinase genes paralleled their counterparts in strain Ecc71 in isoelectric mobility, mode of substrate degradation, and ability to macerate potato tuber tissue.

gene that responds to DNA-damaging agents. J. Bacteriol. 172:3284-3289. McEvoy, J. L., K.K. Thum, and A.K. Chatterjee. 1987. Expression of the E. coli lexA+ gene in Erwinia carotovora subsp, carotovora and its effect on production of pectin lyase and carotovoricin. Fed. European Microbiol. Soc. Microbiol. Lett. 42:205–208. Mount, M.S., P.M. Berman, R.P. Mortlock, and J.P. Hubbard. 1979. Regulat...