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HAMAP proteomes
Azospirillum sp. (strain B510)

General information

Species:  Azospirillum sp. (strain B510)
Species code: AZOS1
Taxonomy: Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales; Rhodospirillaceae; Azospirillum (TaxID: 137722) [NEWT/ NCBI]
Description: Azospirillum sp. B510 is a rice endophyte isolated in August 1999 from the surface-sterilized stems of rice plants (Oryza sativa cv. Nipponbare) cultivated in an experimental paddy field in Japan. In addition to being a diazotroph under free-living conditions, B510 was found to have positive motility, and to be capable of degrading plant cell walls. B510 is capable of colonizing internal rice tissues, and inoculation with B510 was shown to promote plant growth under both laboratory and field conditions. It is capable of fixing N(2) in planta. B510 inoculation increases stem number resulting in an increase in seed yield. The genome consists of 1 chromosome and 6 plasmids, 2 of which encode essential genes. There are 280 insertions sequences and at least 2 putative prophages in the genome. Three putative plant hormone-related genes encoding tryptophan 2-monooxytenase (iaaM) and indole-3-acetaldehyde hydrolase (iaaH), which are involved in indole-3-actic acid biosynthesis, and 1-aminocyclopropane-1-carboxylate deaminase (acdS), which reduces ethylene levels, were identified. Moreover, B510 inoculation enhanced disease resistance to virulent rice blast fungus and the bacterial pathogen Xanthomonas oryzae.15 Thus, Azospirillum sp. B510 is likely a beneficial bacterium with agronomic applications (adapted from PMID 20047946).
Properties: Presence of flagella: Yes
Human pathogen: No
Interaction: Plant endophyte
Number of membranes: 2

Genome(s) sequenced

Strain:    B510
Genome structure:
• Chromosome EMBL accession number AP010946 (circular; 3,311,395 bp) (download entry)
• Plasmid pAB510a EMBL accession number AP010947 (circular; 1,455,109 bp) (download entry)
• Plasmid pAB510b EMBL accession number AP010948 (circular; 723,779 bp) (download entry)
• Plasmid pAB510c EMBL accession number AP010949 (circular; 681,723 bp) (download entry)
• Plasmid pAB510d EMBL accession number AP010950 (circular; 628,837 bp) (download entry)
• Plasmid pAB510e EMBL accession number AP010951 (circular; 537,299 bp) (download entry)
• Plasmid pAB510f EMBL accession number AP010952 (circular; 261,596 bp) (download entry)
Reference(s):
[1] Pubmed=20047946;
Kaneko T., Minamisawa K., Isawa T., Nakatsukasa H., Mitsui H., Kawaharada Y., Nakamura Y., Watanabe A., Kawashima K., Ono A., Shimizu Y., Takahashi C., Minami C., Fujishiro T., Kohara M., Katoh M., Nakazaki N., Nakayama S., Yamada M., Tabata S., Sato S. ;
"Complete genomic structure of the cultivated rice endophyte Azospirillum sp. B510.";
DNA Res. 17:37-50(2010).
Web links:
Official genome site(s):
http://genome.kazusa.or.jp/rhizobase/IB510
Other web sites:
Entrez Genome Project: http://www.ncbi.nlm.nih.gov/sites/entrez?db=genomeprj&cmd=Retrieve&list_uids=32551
GOLD: http://genomesonline.org/cgi-bin/GOLD/bin/GOLDCards.cgi?goldstamp=Gc01166


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