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Toxins produced by Pseudomonas syringae

Toksini bakterije Pseudomonas syringae

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Kuzmanović, Nemanja
Obradović, Aleksa
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Abstract
Toxins are products of metabolic activity of live cells of plants, animals or microorganisms. Bacterial toxins especially play an important role in human, animal and plant pathology. They are often defined as primary virulence factors with great importance in development of various diseases. Many species of plant pathogenic bacteria produce toxins with various importance in plant pathology. So far, it has been confirmed that bacteria belonging to genus Pseudomonas, Xanthomonas, Clavibacter and Streptomyces, produce toxins that are important in pathogenesis. Pseudomonas species synthesize wide spec- trum of phytotoxic substances. These toxins mainly influence symptom development such as chlorosis, watersoaking, and necrosis. Therefore, they are considered important factors of bacterial virulence. However, microbicidal activity of some of those toxins can be used in control of other harmful microorganisms. Toxin production also can be a determinative characteristic for some Pseudomonas s...yringae strains or pathovars.

Toksini su proizvod metaboličke aktivnosti živih ćelija biljaka, životinja ili mikroorganizama. Bakterijski toksini se izdvajaju po izuzetnom značaju u humanoj, animalnoj i biljnoj patologiji. Oni se najčešće definišu kao primarni faktori virulentnosti i mogu imati važnu ulogu u razvoju niza bolesti. Mnoge vrste fitopatogenih bakterija sposobne su da stvaraju toksine koji mogu biti od različitog značaja u biljnoj patologiji. Do sada je utvrđeno da značajnu ulogu u patogenezi imaju toksini koje luče bakterije rodova Pseudomonas, Xanthomonas, Clavibacter i Streptomyces. Pseudomonas vrste stvaraju širok spektar fitotoksičnih materija. Ovi toksini uglavnom učestvuju u razvoju simptoma kao što su hloroza, vodenaste pege i nekroza. Stoga se smatra da imaju značajnu ulogu u patogenezi, kao jedan od važnih faktora virulentnosti bakterija. Mikrobicidno svojstvo nekih od ovih toksina takođe može biti od koristi u kontroli drugih patogenih mikroorganizama. Stvaranje toksina može poslužiti i kao o...dlika za determinaciju pojedinih sojeva bakterije Pseudomonas syringae ili njenih patogenih varijeteta.

Keywords:
endotoxins / exotoxins / bacteria / virulence factors / symptoms / endotoksini / egzotoksini / bakterije / faktori virulentnosti / simptomi
Source:
Biljni lekar, 2010, 38, 1, 33-41
Publisher:
  • Univerzitet u Novom Sadu - Poljoprivredni fakultet - Departman za zaštitu bilja i životne sredine "dr Pavla Vukasovića", Novi Sad
Funding / projects:
  • info:eu-repo/grantAgreement/MESTD/MPN2006-2010/20062/RS// (RS-20062)

ISSN: 0354-6160

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Handle
https://hdl.handle.net/21.15107/rcub_agrospace_2188
URI
http://aspace.agrif.bg.ac.rs/handle/123456789/2188
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  • Radovi istraživača / Researchers’ publications
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Poljoprivredni fakultet

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