Sensibilidad de cepas silvestres y mutantes de Trichoderma harzianum a fungicidas

Rodrigo Herrera; David Núñez; Natalia Romero; Ximena Besoain; Luz María Pérez; Jaime Montealegre

doi:10.4067/S0718-16202012000300016

Sensibilidad de cepas silvestres y mutantes de Trichoderma harzianum a fungicidas

Translated title of the contribution: Sensitivity of wild-type and mutant Trichoderma harzianum strains to fungicides

Rodrigo Herrera, David Núñez, Natalia Romero, Ximena Besoain, Luz María Pérez, Jaime Montealegre

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

3 Scopus citations

Abstract

The germination of conidia in wild-type (Th11, Th12 and Th650) and mutant (Th11A80.1, Th12A10.1 and Th650-NG7) strains of Trichoderma harzianum that were exposed to different commercial fungicides was studied. All wild-type and mutant Trichoderma strains were germinated in the presence of 1,700 mg L^-1 of pencycuron. The wildtype strains Th12 and Th650 and the corresponding mutant strains Th12A10.1 and Th650-NG7 were sensitive to all concentrations of iprodione and metalaxil + mancozeb. The EC₅₀ (Median Effective Concentration) values for the different fungicides were between 10^-1 and 10^-4 less than the concentrations recommended for field applications; one exception was Phyto-fos on Th650- NG7, where this ratio was 0.72. These results establish whether some of these fungicides can be used in combination with the biocontrol agents evaluated.

Translated title of the contribution	Sensitivity of wild-type and mutant Trichoderma harzianum strains to fungicides
Original language	Spanish
Pages (from-to)	569-576
Number of pages	8
Journal	Ciencia e Investigacion Agraria
Volume	39
Issue number	3
DOIs	https://doi.org/10.4067/S0718-16202012000300016
State	Published - Dec 2012
Externally published	Yes

Access to Document

10.4067/S0718-16202012000300016

Cite this

@article{95547acf331d414a947ed6dbed0cc866,

title = "Sensibilidad de cepas silvestres y mutantes de Trichoderma harzianum a fungicidas",

abstract = "The germination of conidia in wild-type (Th11, Th12 and Th650) and mutant (Th11A80.1, Th12A10.1 and Th650-NG7) strains of Trichoderma harzianum that were exposed to different commercial fungicides was studied. All wild-type and mutant Trichoderma strains were germinated in the presence of 1,700 mg L-1 of pencycuron. The wildtype strains Th12 and Th650 and the corresponding mutant strains Th12A10.1 and Th650-NG7 were sensitive to all concentrations of iprodione and metalaxil + mancozeb. The EC50 (Median Effective Concentration) values for the different fungicides were between 10-1 and 10-4 less than the concentrations recommended for field applications; one exception was Phyto-fos on Th650- NG7, where this ratio was 0.72. These results establish whether some of these fungicides can be used in combination with the biocontrol agents evaluated.",

keywords = "Biocontrol, Biocontrol agents, Control of tomato root diseases, Fungicide tolerant Trichoderma, Fungicides, Integrated management",

author = "Rodrigo Herrera and David N{\'u}{\~n}ez and Natalia Romero and Ximena Besoain and P{\'e}rez, {Luz Mar{\'i}a} and Jaime Montealegre",

year = "2012",

month = dec,

doi = "10.4067/S0718-16202012000300016",

language = "Spanish",

volume = "39",

pages = "569--576",

journal = "Ciencia e Investigacion Agraria",

issn = "0304-5609",

number = "3",

}

TY - JOUR

T1 - Sensibilidad de cepas silvestres y mutantes de Trichoderma harzianum a fungicidas

AU - Herrera, Rodrigo

AU - Núñez, David

AU - Romero, Natalia

AU - Besoain, Ximena

AU - Pérez, Luz María

AU - Montealegre, Jaime

PY - 2012/12

Y1 - 2012/12

N2 - The germination of conidia in wild-type (Th11, Th12 and Th650) and mutant (Th11A80.1, Th12A10.1 and Th650-NG7) strains of Trichoderma harzianum that were exposed to different commercial fungicides was studied. All wild-type and mutant Trichoderma strains were germinated in the presence of 1,700 mg L-1 of pencycuron. The wildtype strains Th12 and Th650 and the corresponding mutant strains Th12A10.1 and Th650-NG7 were sensitive to all concentrations of iprodione and metalaxil + mancozeb. The EC50 (Median Effective Concentration) values for the different fungicides were between 10-1 and 10-4 less than the concentrations recommended for field applications; one exception was Phyto-fos on Th650- NG7, where this ratio was 0.72. These results establish whether some of these fungicides can be used in combination with the biocontrol agents evaluated.

AB - The germination of conidia in wild-type (Th11, Th12 and Th650) and mutant (Th11A80.1, Th12A10.1 and Th650-NG7) strains of Trichoderma harzianum that were exposed to different commercial fungicides was studied. All wild-type and mutant Trichoderma strains were germinated in the presence of 1,700 mg L-1 of pencycuron. The wildtype strains Th12 and Th650 and the corresponding mutant strains Th12A10.1 and Th650-NG7 were sensitive to all concentrations of iprodione and metalaxil + mancozeb. The EC50 (Median Effective Concentration) values for the different fungicides were between 10-1 and 10-4 less than the concentrations recommended for field applications; one exception was Phyto-fos on Th650- NG7, where this ratio was 0.72. These results establish whether some of these fungicides can be used in combination with the biocontrol agents evaluated.

KW - Biocontrol

KW - Biocontrol agents

KW - Control of tomato root diseases

KW - Fungicide tolerant Trichoderma

KW - Fungicides

KW - Integrated management

UR - http://www.scopus.com/inward/record.url?scp=84875994572&partnerID=8YFLogxK

U2 - 10.4067/S0718-16202012000300016

DO - 10.4067/S0718-16202012000300016

M3 - Article

AN - SCOPUS:84875994572

VL - 39

SP - 569

EP - 576

JO - Ciencia e Investigacion Agraria

JF - Ciencia e Investigacion Agraria

SN - 0304-5609

IS - 3

ER -

Sensibilidad de cepas silvestres y mutantes de Trichoderma harzianum a fungicidas

Abstract

Access to Document

Other files and links

Fingerprint

Cite this