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Arabidopsis thaliana un modelo en el estudio de expresión de los genes CoI1, PDF1.2 y PR2 en la interacción compatible e incompatible con Nacobbus aberrans. Colegio de Postgraduados
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...
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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Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberrans Rev. Ciênc. Agron.
Garita,Sebastián Andrés; Bernardo,Valeria Fernanda; Guimarães,Marcelo De Almeida; Arango,María Cecilia; Ruscitti,Marcela Fabiana.
ABSTRACT Inoculation with mycorrhizal fungi and the use of rootstock that is tolerant or resistant to nematodes are two strategies that allow the nematode to be controlled, and plants to coexist with the pathogen. However, the two techniques have always been tested in isolation, when their positive effects are less compared to when they are able to act together. In the present work, two rootstocks combined with the mycorrhizal fungus Rhizophagus intraradices were compared, with the aim of evaluating their behaviour on the growth of tomato plants in soils infested with N. aberrans, the false root-knot nematode. The experiment was set up in a completely randomised design with ten replications, in a 3 x 2 x 2 factorial scheme. The treatments consisted of a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: False root-knot nematode; Rhizophagus intraradices; Reproductive factor.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400609
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Use of the arbuscular mycorrhizal fungus Glomus intraradices as biological control agent of the nematode Nacobbus aberrans parasitizing tomato BABT
Marro,Nicolás; Lax,Paola; Cabello,Marta; Doucet,Marcelo Edmundo; Becerra,Alejandra Gabriela.
The plant-parasitic nematode Nacobbus aberrans is an endoparasite that induces gall formation in the roots and causes severe losses to diverse crops. Some populations of this nematode show preference for certain hosts, revealing the existence of "races/groups" with different behaviour and making nematode management difficult. A possible biological control alternative to reduce the damage caused by this species may be the use of arbuscular mycorrhizal fungi (AMF). In the present work, the effect of Glomus intraradices on tomato plants inoculated with the nematode at transplanting and three weeks later was tested. At 60 days, the following parameters were estimated: percentage of AMF colonization, root and aerial dry weight, number of galls and egg masses,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arbuscular mycorrhiza; False root-knot nematode; Microbiological control; Plant protection.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500668
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