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Título
Developing tools for evaluating inoculation methods of biocontrol Streptomyces sp. strains into grapevine plants
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
PLoS ONE
Número de la revista
1
Cita Bibliográfica
González-García, S., Álvarez-Pérez, J. M., Sáenz de Miera, L. E., Cobos, R., Ibañez, A., Díez-Galán, A., Garzón-Jimeno, E., & Coque, J. J. R. (2019). Developing tools for evaluating inoculation methods of biocontrol Streptomyces sp. Strains into grapevine plants. PLoS ONE, 14(1), Article e0211225. https://doi.org/10.1371/journal.pone.0211225
Editorial
Public Library of Science (PLoS)
Fecha
2019
Resumen
[EN] The endophytic Streptomyces sp. VV/E1, and rhizosphere Streptomyces sp. VV/R4 strains, isolated from grapevine plants were shown in a previous work to reduce the infection rate of fungal pathogens involved in young grapevine decline. In this study we cloned fragments from randomly amplified polymorphic DNA (RAPD), and developed two stably diagnostic sequence-characterized amplified region (SCAR) markers of 182 and 160 bp for the VV/E1 and VV/R4 strains, respectively. The SCAR markers were not found in another 50 actinobacterial strains isolated from grapevine plants. Quantitative real-time PCR protocols based on the amplification of these SCAR markers were used for the detection and quantification of both strains in plant material. These strains were applied on young potted plants using two methods: perforation of the rootstock followed by injection of the microorganisms or soaking the root system in a bacterial suspension. Both methods were combined with a booster treatment by direct addition of a bacterial suspension to the soil near the root system. Analysis of uprooted plants showed that those inoculated by injection exhibited the highest rate of colonization. In contrast, direct addition of either strain to the soil did not lead to reliable colonization. This study has developed molecular tools for analyzing different methods for inoculating grapevine plants with selected Streptomyces sp. strains which protect them from fungal infections that enter through their root system. These tools are of great applied interest since they could easily be established in nurseries to produce grafted grapevine plants that are protected against fungal pathogens. Finally, this methodology might also be applied to other vascular plants for their colonization with beneficial biological control agents
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Palabras clave
Peer review
SI
ID proyecto
- info:eu-repo/grant/MINECO/Programa Estatal de Impulso al Liderazgo Empresarial en I+D+I/IDI-20160746/ES/Solución global para mejorar la producción vitivinícola frente al cambio climático basada en robótica, tecnología IT y en estrategias biotecnológicas y de manejo del viñedo/GLOBALVITI
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