Mycorrhizal fungi isolated from Chilean orchids as biocontrollers of the pathogen Rhizoctonia solani

Guillermo Pereira; Nicole Roa; Diyanira Castillo-Novales; César Arriagada; Héctor Herrera; Marco Molina-Montenegro; Cristian Atala

doi:10.4067/S0717-66432021000200113

Mycorrhizal fungi isolated from Chilean orchids as biocontrollers of the pathogen Rhizoctonia solani

Translated title of the contribution: Mycorrhizal fungi isolated from Chilean orchids as biocontrollers of the pathogen Rhizoctonia solani

Guillermo Pereira, Nicole Roa, Diyanira Castillo-Novales, César Arriagada, Héctor Herrera, Marco Molina-Montenegro, Cristian Atala

INSTITUTE OF BIOLOGY

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Phytopatogenic fungi cause severe economic losses worldwide. Rhizoctonia solani Kühn is a pathogenic fungi affecting several crops, controlled mainly by agrochemicals. Biological control has arisen as another option for managing this pathogen. In this study, we evaluated the biocontroller potential of five orchid mycorrhizal fungi (OMF) isolated from terrestrial Chilean orchids on R. solani. We compared the biocontroller effect of these OMFs with that of Trichoderma harzianum Rifai in an in vitro dual culture experiment. We found that R. solani can be controlled in vitro by OMF isolated from native orchids. The OMF isolated from Chloraea virescens and C. lamellata showed the best biocontroller results, which were similar, or even higher, than with T. harzianum. Thus, OMFs could become a relevant alternative for the integral control of R. solani, contributing to the reduction in the use of agrochemicals in crops.

Translated title of the contribution	Mycorrhizal fungi isolated from Chilean orchids as biocontrollers of the pathogen Rhizoctonia solani
Original language	English
Pages (from-to)	113-120
Number of pages	8
Journal	Gayana - Botanica
Volume	78
Issue number	2
DOIs	https://doi.org/10.4067/S0717-66432021000200113
State	Published - Dec 2021

Keywords

Ceratobasidium
biological control
dual culture
orchid fungi
pathogenic Rhizoctonia

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10.4067/S0717-66432021000200113

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title = "Mycorrhizal fungi isolated from Chilean orchids as biocontrollers of the pathogen Rhizoctonia solani",

abstract = "Phytopatogenic fungi cause severe economic losses worldwide. Rhizoctonia solani K{\"u}hn is a pathogenic fungi affecting several crops, controlled mainly by agrochemicals. Biological control has arisen as another option for managing this pathogen. In this study, we evaluated the biocontroller potential of five orchid mycorrhizal fungi (OMF) isolated from terrestrial Chilean orchids on R. solani. We compared the biocontroller effect of these OMFs with that of Trichoderma harzianum Rifai in an in vitro dual culture experiment. We found that R. solani can be controlled in vitro by OMF isolated from native orchids. The OMF isolated from Chloraea virescens and C. lamellata showed the best biocontroller results, which were similar, or even higher, than with T. harzianum. Thus, OMFs could become a relevant alternative for the integral control of R. solani, contributing to the reduction in the use of agrochemicals in crops.",

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author = "Guillermo Pereira and Nicole Roa and Diyanira Castillo-Novales and C{\'e}sar Arriagada and H{\'e}ctor Herrera and Marco Molina-Montenegro and Cristian Atala",

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year = "2021",

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doi = "10.4067/S0717-66432021000200113",

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AU - Pereira, Guillermo

AU - Roa, Nicole

AU - Castillo-Novales, Diyanira

AU - Arriagada, César

AU - Herrera, Héctor

AU - Molina-Montenegro, Marco

AU - Atala, Cristian

PY - 2021/12

Y1 - 2021/12

N2 - Phytopatogenic fungi cause severe economic losses worldwide. Rhizoctonia solani Kühn is a pathogenic fungi affecting several crops, controlled mainly by agrochemicals. Biological control has arisen as another option for managing this pathogen. In this study, we evaluated the biocontroller potential of five orchid mycorrhizal fungi (OMF) isolated from terrestrial Chilean orchids on R. solani. We compared the biocontroller effect of these OMFs with that of Trichoderma harzianum Rifai in an in vitro dual culture experiment. We found that R. solani can be controlled in vitro by OMF isolated from native orchids. The OMF isolated from Chloraea virescens and C. lamellata showed the best biocontroller results, which were similar, or even higher, than with T. harzianum. Thus, OMFs could become a relevant alternative for the integral control of R. solani, contributing to the reduction in the use of agrochemicals in crops.

AB - Phytopatogenic fungi cause severe economic losses worldwide. Rhizoctonia solani Kühn is a pathogenic fungi affecting several crops, controlled mainly by agrochemicals. Biological control has arisen as another option for managing this pathogen. In this study, we evaluated the biocontroller potential of five orchid mycorrhizal fungi (OMF) isolated from terrestrial Chilean orchids on R. solani. We compared the biocontroller effect of these OMFs with that of Trichoderma harzianum Rifai in an in vitro dual culture experiment. We found that R. solani can be controlled in vitro by OMF isolated from native orchids. The OMF isolated from Chloraea virescens and C. lamellata showed the best biocontroller results, which were similar, or even higher, than with T. harzianum. Thus, OMFs could become a relevant alternative for the integral control of R. solani, contributing to the reduction in the use of agrochemicals in crops.

KW - Ceratobasidium

KW - biological control

KW - dual culture

KW - orchid fungi

KW - pathogenic Rhizoctonia

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VL - 78

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IS - 2

ER -

Mycorrhizal fungi isolated from Chilean orchids as biocontrollers of the pathogen Rhizoctonia solani

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Keywords

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