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Artículo

Choline promotes growth and tabtoxin production in a Pseudomonas syringae strain

Gallarato, Lucas AntonioIcon ; Primo, Emiliano DavidIcon ; Lisa, Angela TeresitaIcon ; Garrido, Monica NelbaIcon
Fecha de publicación: 09/2012
Editorial: Scientific Research Publishing Inc
Revista: Advances in Microbiology
ISSN: 2165-3402
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Biología Celular, Microbiología

Resumen

Some Pseudomonas syringae pathovars secrete tabtoxin, a monocyclic β-lactam antibiotic, responsible for chlorosis, the principal halo blight symptom in susceptible plants as oats, rye, barley, wheat and sorghum, among other. Here, we demonstrated that the production of tabtoxin in a P. syringae strain increased at least 150%, when choline, betaine or dimethylglycine were used as nitrogen source, or when choline was added as osmoprotectant in hyperosmolar culture media. Besides, we investigated the induction of phosphorylcholine phosphatase (PchP) activity when choline or its metabolites were used as nitrogen sources. PchP is an enzyme involved in Pseudomonas aeruginosa pathogenesis through its contribution to the breakdown of choline-containing compounds of the host cells. Considering these results and that the success of a pathogenic microorganism depends on its ability to survive and proliferate in its target tissue, we propose that choline is one of the plant signals that contribute to establishment of the infection by tabtoxin-producing strains of P. syringae.
Palabras clave: CHOLINE , PSEUDOMONAS SYRINGAE , PHYTOTOXINS , PHOSPHORYLCHOLINE PHOSPHATASE
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/197535
URL: http://www.SciRP.org/journal/aim
DOI: http://dx.doi.org/10.4236/aim.2012.23039
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Citación
Gallarato, Lucas Antonio; Primo, Emiliano David; Lisa, Angela Teresita; Garrido, Monica Nelba; Choline promotes growth and tabtoxin production in a Pseudomonas syringae strain; Scientific Research Publishing Inc; Advances in Microbiology; 2; 3; 9-2012; 327-331
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