In vitro and glasshouse biocontrol of Rhizoctonia solani with improved strains of Trichoderma spp

Jaime R. Montealegre; Fabián Ochoa; Ximena Besoain; Rodrigo Herrera; Luz M. Pérez

doi:10.4067/S0718-16202014000200006

In vitro and glasshouse biocontrol of Rhizoctonia solani with improved strains of Trichoderma spp

Translated title of the contribution: In vitro and glasshouse biocontrol of Rhizoctonia solani with improved strains of Trichoderma spp

Jaime R. Montealegre, Fabián Ochoa, Ximena Besoain, Rodrigo Herrera, Luz M. Pérez

SCHOOL OF AGRONOMY

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

3 Scopus citations

Abstract

The potential of Trichoderma spp. fusants for the biocontrol of Rhizoctonia solani was compared with the ability of their corresponding parental strains. Their effect was tested in vitro using two R. solani strains, 509 (AG 2-1) and 618 (AG 4). The highest inhibitions in growth in dual cultures were obtained with the ThF2-1 (89.79%), ThF3-3 (90.55%), ThF4-15 (91.75%) and ThF5-8 (77.67%) fusants on R. solani 509; only ThF2-1 was able to inhibit the growth of R. solani 618 (60.19%). The inhibitory effect on growth was mainly due to diffusible metabolites. Percent mortality and canker level in tomato plants were evaluated in glasshouse experiments where all of the evaluated fusants suppressed plant mortality, but only ThF2-1 and ThF5-8 significantly decreased the canker level.

Translated title of the contribution	In vitro and glasshouse biocontrol of Rhizoctonia solani with improved strains of Trichoderma spp
Original language	English
Pages (from-to)	197-206
Number of pages	10
Journal	Ciencia e Investigacion Agraria
Volume	41
Issue number	2
DOIs	https://doi.org/10.4067/S0718-16202014000200006
State	Published - 2014

Keywords

Biological control
Methyl bromide
Solanum lycopersicum
Tomato

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title = "In vitro and glasshouse biocontrol of Rhizoctonia solani with improved strains of Trichoderma spp",

abstract = "The potential of Trichoderma spp. fusants for the biocontrol of Rhizoctonia solani was compared with the ability of their corresponding parental strains. Their effect was tested in vitro using two R. solani strains, 509 (AG 2-1) and 618 (AG 4). The highest inhibitions in growth in dual cultures were obtained with the ThF2-1 (89.79%), ThF3-3 (90.55%), ThF4-15 (91.75%) and ThF5-8 (77.67%) fusants on R. solani 509; only ThF2-1 was able to inhibit the growth of R. solani 618 (60.19%). The inhibitory effect on growth was mainly due to diffusible metabolites. Percent mortality and canker level in tomato plants were evaluated in glasshouse experiments where all of the evaluated fusants suppressed plant mortality, but only ThF2-1 and ThF5-8 significantly decreased the canker level.",

keywords = "Biological control, Methyl bromide, Solanum lycopersicum, Tomato",

author = "Montealegre, {Jaime R.} and Fabi{\'a}n Ochoa and Ximena Besoain and Rodrigo Herrera and P{\'e}rez, {Luz M.}",

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doi = "10.4067/S0718-16202014000200006",

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T1 - In vitro and glasshouse biocontrol of Rhizoctonia solani with improved strains of Trichoderma spp

AU - Montealegre, Jaime R.

AU - Ochoa, Fabián

AU - Besoain, Ximena

AU - Herrera, Rodrigo

AU - Pérez, Luz M.

PY - 2014

Y1 - 2014

N2 - The potential of Trichoderma spp. fusants for the biocontrol of Rhizoctonia solani was compared with the ability of their corresponding parental strains. Their effect was tested in vitro using two R. solani strains, 509 (AG 2-1) and 618 (AG 4). The highest inhibitions in growth in dual cultures were obtained with the ThF2-1 (89.79%), ThF3-3 (90.55%), ThF4-15 (91.75%) and ThF5-8 (77.67%) fusants on R. solani 509; only ThF2-1 was able to inhibit the growth of R. solani 618 (60.19%). The inhibitory effect on growth was mainly due to diffusible metabolites. Percent mortality and canker level in tomato plants were evaluated in glasshouse experiments where all of the evaluated fusants suppressed plant mortality, but only ThF2-1 and ThF5-8 significantly decreased the canker level.

AB - The potential of Trichoderma spp. fusants for the biocontrol of Rhizoctonia solani was compared with the ability of their corresponding parental strains. Their effect was tested in vitro using two R. solani strains, 509 (AG 2-1) and 618 (AG 4). The highest inhibitions in growth in dual cultures were obtained with the ThF2-1 (89.79%), ThF3-3 (90.55%), ThF4-15 (91.75%) and ThF5-8 (77.67%) fusants on R. solani 509; only ThF2-1 was able to inhibit the growth of R. solani 618 (60.19%). The inhibitory effect on growth was mainly due to diffusible metabolites. Percent mortality and canker level in tomato plants were evaluated in glasshouse experiments where all of the evaluated fusants suppressed plant mortality, but only ThF2-1 and ThF5-8 significantly decreased the canker level.

KW - Biological control

KW - Methyl bromide

KW - Solanum lycopersicum

KW - Tomato

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U2 - 10.4067/S0718-16202014000200006

DO - 10.4067/S0718-16202014000200006

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SN - 0304-5609

VL - 41

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JO - Ciencia e Investigacion Agraria

JF - Ciencia e Investigacion Agraria

IS - 2

ER -

In vitro and glasshouse biocontrol of Rhizoctonia solani with improved strains of Trichoderma spp

Abstract

Keywords

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