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| Méndez Inocencio, Carlos. |
| Los nemátodos fitopatógenos Nacobbus aberrans y Meloidogyne mayaguensis son de interés económico por su agresividad y rango de hospederos. En este trabajo se usó Arabidopsis thaliana ecotipo Columbia como modelo de estudio en la interacción con estos nemátodos. Para esto, se evaluó la respuesta sistémica inducida (ISR) en follaje, de genes relacionados con la ruta de señalización de Ácido Jasmónico (JA): COI1 y PDF1.2 (PR12) y el gen de la ruta del Ácido Salicílico: BGL2 (PR2). Los experimentos fueron completamente al azar con inoculación de 100 J2. La evaluación fue a los 1, 2, 3 y 7 días después de la inoculación (ddi). Los niveles relativos de transcritos en roseta se determinaron mediante análisis de PCR en tiempo real (qRT-PCR). Los transcritos de... |
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Palavras-chave: Col-0; Nemátodo falso agallador; M. enterolobii; ISR; SAR; PR12; PR2; False root-knot nematode; Fitopatología; Doctorado. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2119 |
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| Beneduzi,Anelise; Ambrosini,Adriana; Passaglia,Luciana M.P.. |
| Bacteria that colonize plant roots and promote plant growth are referred to as plant growth-promoting rhizobacteria (PGPR). PGPR are highly diverse and in this review we focus on rhizobacteria as biocontrol agents. Their effects can occur via local antagonism to soil-borne pathogens or by induction of systemic resistance against pathogens throughout the entire plant. Several substances produced by antagonistic rhizobacteria have been related to pathogen control and indirect promotion of growth in many plants, such as siderophores and antibiotics. Induced systemic resistance (ISR) in plants resembles pathogen-induced systemic acquired resistance (SAR) under conditions where the inducing bacteria and the challenging pathogen remain spatially separated. Both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antagonism; Siderophore; Antibiotic; SAR; ISR. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600020 |
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| Stocco,Marina C; Mansilla,Andrea Y; Mónaco,Cecilia I; Segarra,Carmen; Lampugnani,Gladys; Abramoff,Cecilia; Marchetti,María F; Kripelz,Natalia; Cordo,Cristina C; Consolo,Verónica F. |
| Trichoderma harzianum inducting resistance to Zymoseptoria tritici. Septoria tritici blotch is endemic in the wheat growing cultivated areas of Argentina, which impacts in the crop yield. One management strategy is to use biocontrol agents. The objective of this work was to determine the effectiveness of Trichoderma spp. isolated from soils of different growing regions, as antagonist and characterize the T. harzianum effect throughout the proteolytic activity of the serine protease in the wheat plant. To determine the antagonistic capacities of Trichoderma spp. against Zimoseptoria tritici, wheat plants were grown from seeds coated with each of the ninety isolated Trichoderma. Antagonism was assessed 21 days after inoculation by the capacity of each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichoderma harzianum; Biocontrol; Wheat; Septoria tritici blotch; ISR; Serine protease. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722015000300002 |
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