Microbial Consortia for Effective Biocontrol of Root and Foliar Diseases in Tomato

The use of beneficial microorganisms for the biological control of plant diseases and pests has emerged as a viable alternative to chemical pesticides in agriculture. Traditionally, microbe-based biocontrol strategies for crop protection relied on the application of single microorganisms. However, t...

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Main Authors: Zhivko Minchev, Olga Kostenko, Roxina Soler, María J. Pozo
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-11-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2021.756368/full
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author Zhivko Minchev
Olga Kostenko
Roxina Soler
María J. Pozo
author_facet Zhivko Minchev
Olga Kostenko
Roxina Soler
María J. Pozo
author_sort Zhivko Minchev
collection DOAJ
description The use of beneficial microorganisms for the biological control of plant diseases and pests has emerged as a viable alternative to chemical pesticides in agriculture. Traditionally, microbe-based biocontrol strategies for crop protection relied on the application of single microorganisms. However, the design of microbial consortia for improving the reliability of current biological control practices is now a major trend in biotechnology, and it is already being exploited commercially in the context of sustainable agriculture. In the present study, exploiting the microbial library of the biocontrol company Koppert Biological Systems, we designed microbial consortia composed of carefully selected, well-characterized beneficial bacteria and fungi displaying diverse biocontrol modes of action. We compared their ability to control shoot and root pathogens when applied separately or in combination as microbial consortia, and across different application strategies that imply direct microbial antagonism or induced systemic plant resistance. We hypothesized that consortia will be more versatile than the single strains, displaying an extended functionality, as they will be able to control a wider range of plant diseases through diverse mechanisms and application methods. Our results confirmed our hypothesis, revealing that while different individual microorganisms were the most effective in controlling the root pathogen Fusarium oxysporum or the foliar pathogen Botrytis cinerea in tomato, the consortia showed an extended functionality, effectively controlling both pathogens under any of the application schemes, always reaching the same protection levels as the best performing single strains. Our findings illustrate the potential of microbial consortia, composed of carefully selected and compatible beneficial microorganisms, including bacteria and fungi, for the development of stable and versatile biological control products for plant protection against a wider range of diseases.
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spelling doaj.art-8351b3c6a61c47a284c9d5d7eba50a3a2022-12-21T19:31:04ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-11-011210.3389/fpls.2021.756368756368Microbial Consortia for Effective Biocontrol of Root and Foliar Diseases in TomatoZhivko Minchev0Olga Kostenko1Roxina Soler2María J. Pozo3Business Unit Microbiology, Agronomical Development Department, Koppert Biological Systems, Berkel en Rodenrijs, NetherlandsBusiness Unit Microbiology, Agronomical Development Department, Koppert Biological Systems, Berkel en Rodenrijs, NetherlandsBusiness Unit Microbiology, Agronomical Development Department, Koppert Biological Systems, Berkel en Rodenrijs, NetherlandsDepartment of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, CSIC, Granada, SpainThe use of beneficial microorganisms for the biological control of plant diseases and pests has emerged as a viable alternative to chemical pesticides in agriculture. Traditionally, microbe-based biocontrol strategies for crop protection relied on the application of single microorganisms. However, the design of microbial consortia for improving the reliability of current biological control practices is now a major trend in biotechnology, and it is already being exploited commercially in the context of sustainable agriculture. In the present study, exploiting the microbial library of the biocontrol company Koppert Biological Systems, we designed microbial consortia composed of carefully selected, well-characterized beneficial bacteria and fungi displaying diverse biocontrol modes of action. We compared their ability to control shoot and root pathogens when applied separately or in combination as microbial consortia, and across different application strategies that imply direct microbial antagonism or induced systemic plant resistance. We hypothesized that consortia will be more versatile than the single strains, displaying an extended functionality, as they will be able to control a wider range of plant diseases through diverse mechanisms and application methods. Our results confirmed our hypothesis, revealing that while different individual microorganisms were the most effective in controlling the root pathogen Fusarium oxysporum or the foliar pathogen Botrytis cinerea in tomato, the consortia showed an extended functionality, effectively controlling both pathogens under any of the application schemes, always reaching the same protection levels as the best performing single strains. Our findings illustrate the potential of microbial consortia, composed of carefully selected and compatible beneficial microorganisms, including bacteria and fungi, for the development of stable and versatile biological control products for plant protection against a wider range of diseases.https://www.frontiersin.org/articles/10.3389/fpls.2021.756368/fullarbuscular mycorrhizabiocontroldisease suppressionmicrobial consortiaSynComTrichoderma
spellingShingle Zhivko Minchev
Olga Kostenko
Roxina Soler
María J. Pozo
Microbial Consortia for Effective Biocontrol of Root and Foliar Diseases in Tomato
Frontiers in Plant Science
arbuscular mycorrhiza
biocontrol
disease suppression
microbial consortia
SynCom
Trichoderma
title Microbial Consortia for Effective Biocontrol of Root and Foliar Diseases in Tomato
title_full Microbial Consortia for Effective Biocontrol of Root and Foliar Diseases in Tomato
title_fullStr Microbial Consortia for Effective Biocontrol of Root and Foliar Diseases in Tomato
title_full_unstemmed Microbial Consortia for Effective Biocontrol of Root and Foliar Diseases in Tomato
title_short Microbial Consortia for Effective Biocontrol of Root and Foliar Diseases in Tomato
title_sort microbial consortia for effective biocontrol of root and foliar diseases in tomato
topic arbuscular mycorrhiza
biocontrol
disease suppression
microbial consortia
SynCom
Trichoderma
url https://www.frontiersin.org/articles/10.3389/fpls.2021.756368/full
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AT olgakostenko microbialconsortiaforeffectivebiocontrolofrootandfoliardiseasesintomato
AT roxinasoler microbialconsortiaforeffectivebiocontrolofrootandfoliardiseasesintomato
AT mariajpozo microbialconsortiaforeffectivebiocontrolofrootandfoliardiseasesintomato