View source for Pseudomonas syringae

{{Speciesbox
| image = Pseudomonas syringae cultures.jpg
| image_caption = Cultures of ''Pseudomonas syringae''
| genus = Pseudomonas
| species = syringae
| authority = Van Hall, 1904
| type_strain =
[http://www.atcc.org/common/catalog/numSearch/numResults.cfm?atccNum=19310 ATCC 19310] <br />
[http://www.ccug.se/default.cfm?page=search_record.cfm&id=2382&db=mc CCUG 14279] <br />
[http://www.angers.inra.fr/cfbp/resultsuite.php?r0=1392&r1=Pseudomonas%20syringae%20pv.%20syringae&r2=Pseudomonas&r3=syringae&r4=syringae&r5=&r6=souche%20type&r7=ATCC%2019310,%20NCPPB%20281,%20ICMP%203023,%20LMG%201247&r8=&r9=Sabet%20K.A.&r10=Syringa%20vulgaris&r11=&r12=1950&r13=Royaume-Uni&r14=&r15=&r16=1972&r17=&r18=&r19=&r20=&r21=Van%20Hall%201902 CFBP 1392] <br />
[http://cip.pasteur.fr/rech-bacteries-gb.html CIP] 106698 <br />
[https://scd.landcareresearch.co.nz/Specimen/ICMP_3023 ICMP 3023] <br />
[http://bccm.belspo.be/db/lmg_strain_details.php?NUM=1247&COLTYPE=&LIST1=ALL%20FIELDS&TEXT1=&LIST2=ALL%20FIELDS&TEXT2=&LIST3=STRNUM&TEXT3=1247&LIST4=STRNUM&TEXT4=&LIST5=STRNUM&TEXT5=&CONJ=OR&RANGE=20 LMG 1247] <br />
[http://web.uni-corvinus.hu:8089/NCAIM/frameset.jsp NCAIM] B.01398 <br />
[http://www.ncppb.com/ncppbsearch.cfm NCPPB] 281 <br />
[http://nrrl.ncaur.usda.gov/cgi-bin/usda/ NRRL] B-1631
| subdivision_ranks = Pathovars
| subdivision =
''P. s.'' pv. ''aceris'' <br />
''P. s.'' pv. ''aptata'' <br />
''P. s.'' pv. ''atrofaciens'' <br />
''P. s.'' pv. ''dysoxylis'' <br />
''P. s.'' pv. ''japonica'' <br />
''P. s.'' pv. ''lapsa'' <br />
''P. s.'' pv. ''panici'' <br />
''P. s.'' pv. ''papulans'' <br />
''P. s.'' pv. ''persicae'' <small>(Prunier, Luisetti &. Gardan) Young, Dye & Wilkie</small><ref name="EPPOpersicae">{{cite web | title=''Pseudomonas syringae'' pv. ''persicae'' (PSDMPE){{bracket|Overview}} | website=Global Database | publisher=EPPO ([[European and Mediterranean Plant Protection Organization]]) | date=2001-01-28 | url=http://gd.eppo.int/taxon/PSDMPE | access-date=2022-03-22}}</ref> <br />
''P. s.'' pv. ''pisi'' <br />
''P. s.'' pv. ''syringae'' <br />
''P. s.'' pv. ''morsprunorum''
}}
'''''Pseudomonas syringae''''' is rod-shaped, [[Gram-negative|Gram negative]] [[Bacteria|bacterium]]. It is a [[plant]] [[pathogen]]. The bacterium can cause disease in many different plants. There are many variants, called [[Pathovar|pathovars]]. They are specialized to infect different plants. 

The bacterium can live as an [[epiphyte]] on the plant surface. It only causes disease once it is able to enter the plant cells. The bacterium enters the plant via wounds or natural openings like [[stomata]]. Once inside the plant tissues the bacteria multiply and cause leaf spots and cankers.

Examples of diseases caused by ''Pseudomonas syringae'' ''(P. s)'' include

* {{visible anchor|pv. aesculi|text=''P. s.'' pv. ''aesculi''}} attacks [[horse chestnut]] trees causing [[:en:Bleeding_canker_of_horse_chestnut|horse chestnut bleeding canker]]<ref>{{Cite web|title=Bleeding canker of horse chestnut: Symptoms|url=https://www.forestresearch.gov.uk/tools-and-resources/fthr/pest-and-disease-resources/bleeding-canker-of-horse-chestnut-pseudomonas-syringae-pv-aesculi/bleeding-canker-of-horse-chestnut-symptoms/|access-date=2023-09-22|website=Forest Research|language=en-GB}}</ref>
* {{visible anchor|pv. glycinea|text=''P. s.'' pv. ''glycinea''}} attacks [[:en:Soybean|soybean]] ''Glycine max'', causing [[:en:Bacterial_blight_of_soybean|bacterial blight of soybean]].<ref name="SoybeanFieldBook">{{cite book|url=http://www.extension.umn.edu/agriculture/soybean/docs/minnesota-soybean-field-book.pdf|title=The Minnesota Soybean Field Book|last1=Bennett|first1=J. Michael|last2=Hicks|first2=Dale R.|last3=Naeve|first3=Seth L.|last4=Bennett|first4=Nancy Bush|date=2014|publisher=[[University of Minnesota Extension]]|location=[[St Paul, MN]]|page=84|access-date=21 February 2016|archive-url=https://web.archive.org/web/20130930151502/http://www1.extension.umn.edu/agriculture/soybean/docs/minnesota-soybean-field-book.pdf|archive-date=30 September 2013|url-status=dead}}</ref>
* {{visible anchor|pv. phaseolicola|text=''P. s.'' pv. ''phaseolicola''}} causes [[:en:Halo_blight_of_bean|halo blight of beans]].
* {{visible anchor|pv. syringae|text=''P. s.'' pv. ''syringae''}} attacks cherry and plum causing bacterial canker.<ref>{{Cite web|title=Bacterial canker / RHS Gardening|url=https://www.rhs.org.uk/disease/bacterial-canker|access-date=2023-09-22|website=www.rhs.org.uk|language=en-gb}}</ref>
This bacterium has been well studied as it is a useful [[model organism]]<ref>{{Cite journal|last=Xin|first=Xiu-Fang|last2=Kvitko|first2=Brian|last3=He|first3=Sheng Yang|date=May 2018|title=Pseudomonas syringae: what it takes to be a pathogen|url=https://www.nature.com/articles/nrmicro.2018.17|journal=Nature Reviews Microbiology|language=en|volume=16|issue=5|pages=316–328|doi=10.1038/nrmicro.2018.17|issn=1740-1534}}</ref> as well as an economically important plant pathogen.

== References ==
{{reflist}}

[[Category:Gram-negative bacteria]]