Biocontrol de Rhizoctonia solani in vivo y en invernadero, Con cepas mejoradas de Trichoderma spp

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

doi:10.4067/S0718-16202014000200006

Biocontrol de Rhizoctonia solani in vivo y en invernadero, Con cepas mejoradas de 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

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	Spanish
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
Externally published	Yes

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title = "Biocontrol de Rhizoctonia solani in vivo y en invernadero, Con cepas mejoradas de 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.}",

year = "2014",

doi = "10.4067/S0718-16202014000200006",

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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

M3 - Article

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EP - 206

JO - Ciencia e Investigacion Agraria

JF - Ciencia e Investigacion Agraria

SN - 0304-5609

IS - 2

ER -

Biocontrol de Rhizoctonia solani in vivo y en invernadero, Con cepas mejoradas de Trichoderma spp

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