Pseudomonas fragi

{{Short description|Species of bacterium}}

{{Speciesbox

| image =

| image_caption =

| genus = Pseudomonas

| species = fragi

| authority = (Eichholz 1902)
Gruber 1905

| type_strain =

[http://www.atcc.org/common/catalog/numSearch/numResults.cfm?atccNum=4973 ATCC 4973]

[http://www.ccug.se/default.cfm?page=search_record.cfm&id=164&db=mc CCUG 556]

[http://www.angers.inra.fr/cfbp/resultsuite.php?r0=4556&r1=Pseudomonas%20fragi&r2=Pseudomonas&r3=fragi&r4=&r5=&r6=souche%20type&r7=ATCC%204973,%20CCEB%20387,%20NRRL%20B25,%20CIP%2055.4,%20LMG%202191&r8=&r9=Hammer%20B.W.&r10=&r11=&r12=&r13=&r14=&r15=&r16=1998&r17=&r18=&r19=&r20=&r21=(Eichholz%201902)%20Gruber%201905%20(Approved%20Lists%201980),%20species. CFBP 4556]

[http://www.crbip.pasteur.fr/fiches/fichecata.jsp?crbip=55.4 CIP 55.4]

[http://www.dsmz.de/microorganisms/html/strains/strain.dsm003456.html DSM 3456]

[http://elias.it.helsinki.fi/hambi/hambi.nsf/8e001923213e19a0c2256839004553d3/2c5fa27bb0e57809c225683a004602d6?OpenDocument HAMBI 28]

[http://bccm.belspo.be/db/lmg_strain_details.php?NUM=2191&COLTYPE=&LIST1=ALL%20FIELDS&TEXT1=&LIST2=ALL%20FIELDS&TEXT2=&LIST3=STRNUM&TEXT3=2191&LIST4=STRNUM&TEXT4=&LIST5=STRNUM&TEXT5=&CONJ=OR&RANGE=20 LMG 2191]

[http://www.nbrc.nite.go.jp/NBRC2/NBRCCatalogueDetailServlet?ID=NBRC&CAT=00003458 NBRC 3458]

[http://www.cbs.knaw.nl/databases/ NCCB] 69033

[http://www.hpa.org.uk/nctc/searcher.html NCTC] 10689

[http://nrrl.ncaur.usda.gov/cgi-bin/usda/ NRRL] B-25 and B-727

[http://www.vkm.ru/ VKM] B-898

| synonyms = Bacterium fragi Eichholz 1902

}}

Pseudomonas fragi is a psychrophilic, Gram-negative bacterium that is responsible for dairy spoilage.{{cite journal |author1=Pereira, JN |author2=Morgan, ME |name-list-style=amp |title=Nutrition and physiology of Pseudomonas fragi |journal=J Bacteriol |volume=74 |issue=6 |pages=710–3 |date=Dec 1957 |pmid=13502296 |pmc=289995 }} Unlike many other members of the genus Pseudomonas, P. fragi does not produce siderophores.{{cite journal |doi=10.1099/13500872-142-5-1191 |vauthors=Champomier-Verges MC, etal |title=Acquisition of iron by the non-siderophore-producing Pseudomonas fragi |journal=Microbiology |volume=142 |issue=5 |pages=1191–9 |year=1996 |pmid=8704960 |doi-access=free }} Optimal temperature for growth is 30 °C, however it can grow between 0 and 35 °C.Hebraud, M., Dubois, E., Potier, P., & Labadie, J. (1994). Effect of growth temperatures on the protein levels in a psychrotrophic bacterium, Pseudomonas fragi. Journal of Bacteriology, 176(13), 4017–4024 Based on 16S rRNA analysis, P. fragi has been placed in the P. chlororaphis group.{{cite journal |author=Anzai |title=Phylogenetic affiliation of the pseudomonads based on 16S rRNA sequence |journal=Int J Syst Evol Microbiol |volume= 50 | issue = 4 |pages=1563–89 |date=Jul 2000 |pmid=10939664 |last2=Kim |first2=H |last3=Park |first3=JY |last4=Wakabayashi |first4=H |last5=Oyaizu |first5=H |doi=10.1099/00207713-50-4-1563|display-authors=etal}}