Burkholderia rhizoxinica HKI 454

Names Burkholderia rhizoxinica HKI 454
Accession numbers NC_014718, NC_014722, NC_014723
Background Rice seedling blight is a severe plant disease caused by the phytopathogenic zygomycete Rhizopus microsporus, which employs an antimitotic agent, rhizoxin, as a virulence factor. Rhizoxin is produced not by the fungus, but by symbiotic bacteria residing within the fungal cytosol, which are vertically transmitted and are essential for vegetative spore formation of the fungus. Strain HKI 454 was isolated from R. microsporus van Tieghem var. chinensis ATCC 62417, isolated in Japan. It can be (irregularly) grown in pure culture, cells are motile, short or coccoid rods that occur singly, in pairs or irregular clusters. Cell size varies from 1.2 to 2.0 um in length and from 0.6 to 1.2 um in width. Strain HKI 454 lacks common genes for sugar importers, and instead encodes amino acid, citrate and malate importers, suggesting it acquires fungal metabolites. The rhizoxin biosynthesis gene cluster is located on the chromosome. Additionally, B. rhizoxinica harbors 14 nonribosomal peptide synthetase (NRPS) gene clusters, whose corresponding peptide products are unidentified (adapted from PMID 17978222 and 21131495). (EBI Integr8)
Strain HKI 0454
Complete Yes
Sequencing centre (01-SEP-2010) Lackner G., Leibniz Institute for Natural Product, Research, Biomolecular Chemistry, Beutenbergstr. 11a,
(19-NOV-2010) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method Sanger
Isolation site Rhizopus microsporus
Isolation country NA
Number of replicons 3
Gram staining properties Negative
Shape NA
Mobility Yes
Flagellar presence Yes
Number of membranes 2
Oxygen requirements NA
Optimal temperature NA
Temperature range NA
Habitat HostAssociated
Biotic relationship Symbiotic
Host name Rhizopus microsporus
Cell arrangement NA
Sporulation NA
Metabolism NA
Energy source NA
Diseases NA
Pathogenicity No