Erwinia tasmaniensis Et1/99

Names Erwinia tasmaniensis Et1/99
Accession numbers NC_010693, NC_010694, NC_010695, NC_010696, NC_010697, NC_010699
Background The genus Erwinia currently contains both pathogenic and nonpathogenic bacteria. E.tasmaniensis are nonpathogenic Erwinia isolated from fruit trees; strain Et1/99, the type strain, was isolated from apple flowers in Tasmania, Australia. It consists of a 3.9 Mb circular chromosome and five plasmids. Strain Et1/99 represents an epiphytic plant bacterium related to E.amylovora and E.pyrifoliae, which are responsible for the important plant diseases fire blight and Asian pear shoot blight, respectively. Strain Et1/99 is thought to compete with these and other bacteria when occupying the same habitat during initial colonization and may represent a strategy for controlling the early steps of fire blight. Secretion systems include the hypersensitive response type III pathway present in many pathogens. Differences or missing parts within the virulence-related factors distinguish strain Et1/99 from pathogens such as Pectobacterium atrosepticum and the related Erwinia spp. Strain Et1/99 completely lacks the sorbitol operon, which may also affect its inability to invade fire blight host plants. Erwinia amylovora in contrast depends for virulence on utilization of sorbitol, the dominant carbohydrate in rosaceous plants (modified from PubMed 18462403). (EBI Integr8)
Strain Et1/99
Complete Yes
Sequencing centre (19-MAY-2008) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
(27-AUG-2007) Max Planck Institute for Molecular Genetics, proScience Ihnestrasse 73, D-14195 Berlin, Germany
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method NA
Isolation site apple flowers in Tasmania, Australia
Isolation country Australia
Number of replicons 6
Gram staining properties Negative
Shape Bacilli
Mobility No
Flagellar presence Yes
Number of membranes 2
Oxygen requirements Facultative
Optimal temperature NA
Temperature range Mesophilic
Habitat HostAssociated
Biotic relationship Free living
Host name NA
Cell arrangement NA
Sporulation Nonsporulating
Metabolism NA
Energy source NA
Diseases NA
Pathogenicity No