Xylella fastidiosa 9a5c

Xylella_fastidiosa
Names Xylella fastidiosa 9a5c
Accession numbers NC_002488, NC_002489, NC_002490
Background Xylella fastidiosa is a gram negative, fastidious, xylem-limited bacterium that causes a range of economically important plant diseases including citrus variegated chlorosis disease (CVC) of oranges and other citrus fruits.X. fastidiosa is also know to cause Pierces disease, a lethal disease to grapevines.The bacterium is spread by certain kinds of leafhoppers known as sharpshooters. While snacking, these insects carry the bacterial infection from plant to plant, transferring X. fastidiosa directly into the plant's xylem, the vascular tissues. There, the bacteria multiply, clogging the plant's internal plumbing and blocking the flow of water to leaves. Trees and plants weaken, leaves discolour, and fruits appear prematurely, remaining small, hard and worthless. Other strains cause leaf scorching of woody perennials such as American elm, maple, mulberry, or plum.The genome sequence reveals the presence of homologues of virulence factors in animal pathogens. Also, genes involved in ion-sequestration and the production of toxins and antibiotics were detected. Such genes may have been acquired by X. fastidiosa (via horizontal gene transfer) to respond to plant defence mechanisms or pesticidal control.Xylella fastidiosa was the first plant pathogen and the first plant associated bacterium to have been sequenced.(From http://www.ebi.ac.uk/2can/genomes/bacteria.html) (BacMap)
Taxonomy
Kingdom:Bacteria
Phylum:Proteobacteria
Class:Gammaproteobacteria
Order:Xanthomonadales
Family:Xanthomonadaceae
Genus:Xylella
Species:fastidiosa
Strain 9a5c
Complete Yes
Sequencing centre (02-JUN-2000) Organization for Nucleotide Sequencing and Analysis, Bioinformatics Lab - IC/Unicamp, C.P. 6176, Campinas, SP
(02-OCT-2001) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method NA
Isolation site Infected twigs derived from the sweet orange strain Valencia in Brazil
Isolation country Brazil
Number of replicons 3
Gram staining properties Negative
Shape Bacilli
Mobility No
Flagellar presence No
Number of membranes 2
Oxygen requirements Aerobic
Optimal temperature 26.0
Temperature range Mesophilic
Habitat HostAssociated
Biotic relationship Free living
Host name NA
Cell arrangement Singles
Sporulation NA
Metabolism NA
Energy source NA
Diseases Citrus variegated chlorosis
Pathogenicity No