Pseudomonas savastanoi

{{Short description|Species of bacterium}}

{{Speciesbox

| image = Pseudomonas savastanoi g1.jpg

| image_caption = Twig of olive-tree with a tumour caused by Pseudomonas savastanoi

| genus = Pseudomonas

| species = savastanoi

| authority = (Janse 1982)
Gardan, et al. 1992

| type_strain =

[http://www.atcc.org/common/catalog/numSearch/numResults.cfm?atccNum=13522 ATCC 13522]

[http://www.angers.inra.fr/cfbp/resultsuite.php?r0=1670&r1=Pseudomonas%20savastanoi%20pv.%20savastanoi&r2=Pseudomonas&r3=savastanoi&r4=savastanoi&r5=&r6=Souche%20type&r7=ATCC%2013522,%20NCPPB%20639,%20ICMP%204352,%20LMG%202209&r8=&r9=Sutic%20D.&r10=Olea%20europaea&r11=&r12=&r13=Yougoslavie&r14=&r15=&r16=&r17=&r18=&r19=&r20=&r21=(ex%20Smith%201908)%20Gardan,%20Bollet,%20Abu%20Gorrah,%20Grimont%20et%20Grimont%201992 CFBP 1670]

[http://cip.pasteur.fr/hcip.cgi?cipdetail&NoCIP=103721 CIP 103721]

[https://scd.landcareresearch.co.nz/Specimen/ICMP_4352 ICMP 4352]

[http://bccm.belspo.be/db/lmg_strain_details.php?NUM=2209&COLTYPE=&LIST1=ALL%20FIELDS&TEXT1=&LIST2=ALL%20FIELDS&TEXT2=&LIST3=STRNUM&TEXT3=2209&LIST4=STRNUM&TEXT4=&LIST5=STRNUM&TEXT5=&CONJ=OR&RANGE=20 LMG 2209]

[http://www.ncppb.com/ncppbsearch.cfm NCPPB] 639

| synonyms = Pseudomonas syringae pv. savastanoi (Smith 1908) Young et al. 1978
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982 Pseudomonas medicaginis Burkholder 1926
Pseudomonas tonelliana (Ferraris 1926) Burkholder 1948
Pseudomonas oleae (Arcangeli) Duggar 1909
Agrobacterium savastanoi (Smith) Starr and Weiss 1943
Agrobacterium tonellianum (Ferraris) Starr and Weiss 1943
Bacterium savastanoi E.F. Smith 1908
Bacterium tonellianum Ferraris 1926
Phytomonas savastanoi (Smith) Bergey et al. 1923
Phytomonas tonelliana (Ferraris) Adam and Pugsley 1934
Pseudomonas syringae subsp. savastanoi pv. oleae Janse 1981
Pseudomonas savastanoi Smith and Petri 1908

| subdivision_ranks = Pathovars

| subdivision =

P. s. pv. fraxini

P. s. pv. nerii

P. s. pv. oleae Janse{{cite web | title=Pseudomonas savastanoi pv. savastanoi (PSDMSA){{bracket|Overview}} | website=Global Database | publisher=EPPO (European and Mediterranean Plant Protection Organization) | date=2002-02-03 | url=http://gd.eppo.int/taxon/PSDMSA | access-date=2022-03-22}}

P. s. pv. phaseolicola

P. s. pv. savastanoi (Smith) Janse

}}

Pseudomonas savastanoi is a gram-negative plant pathogenic bacterium that infects a variety of plants. It was once considered a pathovar of Pseudomonas syringae, but following DNA-relatedness studies, it was instated as a new species.{{cite journal |author=Gardan |title=DNA relatedness among the pathovars of Pseudomonas syringae and description of Pseudomonas tremae sp. nov. and Pseudomonas cannabina sp. nov. (ex Sutic and Dowson 1959) |journal=Int J Syst Bacteriol |volume=49 |pages=469–78 |date=Apr 1999 |pmid=10319466 |last2=Shafik |first2=H |last3=Belouin |first3=S |last4=Broch |first4=R |last5=Grimont |first5=F |last6=Grimont |first6=PA |doi=10.1099/00207713-49-2-469 |issue=2|display-authors=etal|doi-access=free }}

It is named after Savastano, a worker who proved between 1887 and 1898 that olive knot are caused by bacteria.George M. Garrity: Bergey's Manual of Systematic Bacteriology. 2. Auflage. Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The GammaproteobacteriaJoseph M. Ogawa, Harley English: Diseases of temperate zone tree fruit and nut crops

The pathovar of greatest economical significance is Pseudomonas savastanoi pv. savastanoi, which causes the disease olive knot. Symptoms include formation of galls on infected trees; tumour formation is induced by indoleacetic acid biosynthesis by the bacteria, in a similar manner to the well-studied crown gall pathogen, Agrobacterium tumefaciens.Hosni T, et al. 2011. Sharing of quorum-sensing signals and role of interspecies communities in a bacterial plant disease. ISME J. {{doi|10.1038/ismej.2011.65}}.{{cite journal | pmid = 16593778 | year = 1986 | last1 = Yamada | first1 = T | last2 = Lee | first2 = PD | last3 = Kosuge | first3 = T |authorlink3=Tsune Kosuge | title = Insertion sequence elements of Pseudomonas savastanoi: Nucleotide sequence and homology with Agrobacterium tumefaciens transfer DNA | volume = 83 | issue = 21 | pages = 8263–7 | pmc = 386908 | journal = Proceedings of the National Academy of Sciences of the United States of America | doi = 10.1073/pnas.83.21.8263 | bibcode = 1986PNAS...83.8263Y | doi-access = free }}