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Revista de Protección Vegetal

versión On-line ISSN 2224-4697

Resumen

PEREZ ALVAREZ, Sandra; COTO ARBELO, Orlando; ECHEMENDIA PEREZ, Mayra  y  AVILA QUEZADA, Graciela. Pseudomonas fluorescens Migula, ¿control biológico o patógeno?: Pseudomonas fluorescens, biological control or pathogen?. Rev. Protección Veg. [online]. 2015, vol.30, n.3, pp. 225-234. ISSN 2224-4697.

The aim of this review was to summarize some aspects of interest of the bacterium Pseudomonas fluorescens Migula, its function as a biological control agent and its recent action as a crop pathogen. Its use as a biological control agent, for bioremeditation, and its recently known capacity of infecting plant tissues, have made them an object of several studies around the world. Identification of Pseudomonas species is currently performed by using molecular methods such as the comparison of 16S rRNA sequences or the rRNA-DNA hybridization although, until now, the rpoB gene is considered the most suitable for the identification and phylogenetic discrimination at a species and subspecies level. This bacterium is classified within the Plant Growth Promoting Bacteria for its capacity for controlling plant pathogens by either producing inhibitory substances or increasing the natural resistance of the plant, or as the Biocontrol Plant Growth Promoting Bacteria (Biocontrol-PGPB), which have beneficial effects on crops by contributing to nitrogen fixation, phytohormone synthesis, and root growth promotion; they associate with plants species and can be found in different ecosystem. At the beginning of the 21th century, this bacterium started to be reported as pathogenic in different crops and countries.

Palabras clave : Pseudomonas; biological control; pathogenic organisms.

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