Endophytic Microorganisms as an Alternative for the Biocontrol of <i>Phytophthora</i> spp.

  1. José Bolivar-Anillo, Hernando
  2. E. González-Rodríguez, Victoria
  3. Reyes Almeida, Giovanna
  4. Izquierdo-Bueno, Inmaculada
  5. Moraga, Javier
  6. Carbú, María
  7. M. Cantoral, Jesús
  8. Garrido, Carlos
Agro-Economic Risks of Phytophthora and an Effective Biocontrol Approach

Publisher: Intech Open

ISBN: 978-1-83969-654-1

Year of publication: 2021

Type: Book chapter

DOI: 10.5772/INTECHOPEN.99696 GOOGLE SCHOLAR lock_openOpen access editor


The genus Phytophthora with more than 100 described species and 58 officially recognized, phylogenetically distributed in ten clades, are important pathogenic oomycete chromists that cause important diseases in agricultural crops, trees and forests worldwide. This genus is known as \"The Plant Destroyer” which causes great economic losses with costs between 2 and 7 billion dollars per year in agricultural systems and unquantifiable losses in natural ecosystems. The host plants of the genus Phytophthora can vary from a wide range in some species to only one host, however, the host plants of the new species are still being determined and therefore the range continues to expand, that makes control exceedingly difficult. Plant damage can range from alterations in roots, fruits, trunks, stems, foliage and crown to invasive processes in highly susceptible species. Considering the wide range of hosts and organs that can be affected by Phytophthora, the use of endophytic microorganisms for the biocontrol of this phytopathogen can be an alternative to avoid losses of both crops and forests worldwide. Endophytes are microorganisms that live inside plant tissues without causing disease under any circumstances. The fact that endophytic microorganisms are able to colonize an ecological niche similar to that of some plant pathogens qualifies them as potential biocontrol agents. This chapter describes the endophytic bacteria and fungi isolated from different plant species that have shown antagonistic activity against different species of Phytophthora, as well as the metabolites isolated from these microorganisms that have shown fungicide activity and other biocontrol strategies (enzyme production, siderophores, substrate competition, among others) against Phytophthora.

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