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What Lies Beneath: Root-Associated Bacteria to Improve the Growth and Health of Olive Trees

  • David Ruano-Rosa
  • Antonio Valverde-Corredor
  • Carmen Gómez-Lama Cabanás
  • Rafael Sesmero
  • Jesús Mercado-BlancoEmail author
Conference paper
Part of the Sustainability in Plant and Crop Protection book series (SUPP)

Abstract

During the last decades we have witnessed growing public concern on the abuse/misuse of agrochemicals to control plant pathogens. The fact that some relevant phytopathogens (for instance, the soil-borne fungus Verticillium dahliae Kleb.) are very difficult to control by methods alternative to chemical-based products, has urged researchers to seek effective measures within integrated disease management frameworks. Biological control, alone or in combination with other approaches, emerges as one of the most promising alternatives to confront plant pathogens in a sustainable, environment-friendly strategy. Effectiveness of biological control agents (BCA) largely depends on colonization and persistence capabilities in the ecological niches (e.g. root and/or rhizosphere) where their benefits are expected to be deployed. As a consequence, due to BCA-host specificity (or co-adaptation) the search of potential BCAs in their target environments seems an appropriate strategy. This chapter describes the isolation, identification and characterization of indigenous antagonist bacteria from the olive rhizosphere that can be eventually exploited as BCA against relevant pathogens affecting this woody crop, with emphasis on V. dahliae. The approach here implemented could be of interest for other pathosystems involving trees and soil-borne pathogens.

Keywords

Pseudomonas spp. Paenibacillus spp. Biological control Plant growth promoting rhizobacteria Verticillium dahliae Olive pathogens 

Notes

Acknowledgements

We are grateful to Drs. F. J. López-Escudero and A. Trapero (University of Córdoba, Spain), C. J. López-Herrera and E. Pérez-Artes (IAS-CSIC), C. Ramos (University of Málaga, Spain) and L. Ran (Agricultural University of Hebei, P.R. China) for their gifts of plant pathogens used in this study. Supported by grants P12-AGR667 (Junta de Andalucía, Spain) and RECUPERA 2020 (MINECO-CSIC agreement), both co-funded by ERDF from the EU.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • David Ruano-Rosa
    • 1
  • Antonio Valverde-Corredor
    • 1
  • Carmen Gómez-Lama Cabanás
    • 1
  • Rafael Sesmero
    • 1
  • Jesús Mercado-Blanco
    • 1
    Email author
  1. 1.Department of Crop ProtectionInstitute for Sustainable Agriculture (IAS), Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC)CórdobaSpain

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