CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTION

ABSTRACT The genus Aspergillus has been isolated from cocoa plantations worldwide. However, there is not enough information about its role in the occurrence of diseases. Aspergillus niger strains were characterized by morphological and molecular techniques. The sequences of A. niger were deposited i...

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Autores principales:	Romero-Cortes,Teresa, López-Pérez,Pablo A., Pérez España,Víctor H., Medina-Toledo,Ariadna K., Aparicio-Burgos,José E., Cuervo-Parra,Jaime A.
Lenguaje:	English
Publicado:	Universidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias Veterinarias 2019
Materias:	Biocontrol mycoparasitism Theobroma cacao xylanases
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902019000100068
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spelling	oai:scielo:S0719-389020190001000682019-09-03CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTIONRomero-Cortes,TeresaLópez-Pérez,Pablo A.Pérez España,Víctor H.Medina-Toledo,Ariadna K.Aparicio-Burgos,José E.Cuervo-Parra,Jaime A. Biocontrol mycoparasitism Theobroma cacao xylanases ABSTRACT The genus Aspergillus has been isolated from cocoa plantations worldwide. However, there is not enough information about its role in the occurrence of diseases. Aspergillus niger strains were characterized by morphological and molecular techniques. The sequences of A. niger were deposited in the GenBank databases. In addition, the antagonistic effect of Trichoderma asperellum VSL80 against A. niger strains was evaluated, obtaining a biocontrol index (BCI) between 15.36 and 88.71%. Scanning electron microscopy showed that the Trichoderma hyphae grew in parallel with the hyphae of A. niger and, in some cases, they were found together with the hyphae of the pathogenic fungus preventing their development. On the other hand, the maximum enzymatic activity of xylanases produced by A. niger in submerged culture was 1.128 U mL1 at 96 h. The morphological and molecular characterization of A. niger strains confirms its presence in Mexico. In addition, information obtained of the BCI may be important for the development of strategies for the prevention and control of this fungus. The enzymatic activity of A. niger during mycoparasitism by T. asperellum could explain the low BCI observed in some A. niger strains confronted with T. asperellum. Finally, the xylanolytic enzyme production by A. niger indicated that this fungus could be used in the industry to obtain xylanases.info:eu-repo/semantics/openAccessUniversidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias VeterinariasChilean journal of agricultural & animal sciences v.35 n.1 20192019-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902019000100068en10.4067/S0719-38902019005000202
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Biocontrol mycoparasitism Theobroma cacao xylanases
spellingShingle	Biocontrol mycoparasitism Theobroma cacao xylanases Romero-Cortes,Teresa López-Pérez,Pablo A. Pérez España,Víctor H. Medina-Toledo,Ariadna K. Aparicio-Burgos,José E. Cuervo-Parra,Jaime A. CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTION
description	ABSTRACT The genus Aspergillus has been isolated from cocoa plantations worldwide. However, there is not enough information about its role in the occurrence of diseases. Aspergillus niger strains were characterized by morphological and molecular techniques. The sequences of A. niger were deposited in the GenBank databases. In addition, the antagonistic effect of Trichoderma asperellum VSL80 against A. niger strains was evaluated, obtaining a biocontrol index (BCI) between 15.36 and 88.71%. Scanning electron microscopy showed that the Trichoderma hyphae grew in parallel with the hyphae of A. niger and, in some cases, they were found together with the hyphae of the pathogenic fungus preventing their development. On the other hand, the maximum enzymatic activity of xylanases produced by A. niger in submerged culture was 1.128 U mL1 at 96 h. The morphological and molecular characterization of A. niger strains confirms its presence in Mexico. In addition, information obtained of the BCI may be important for the development of strategies for the prevention and control of this fungus. The enzymatic activity of A. niger during mycoparasitism by T. asperellum could explain the low BCI observed in some A. niger strains confronted with T. asperellum. Finally, the xylanolytic enzyme production by A. niger indicated that this fungus could be used in the industry to obtain xylanases.
author	Romero-Cortes,Teresa López-Pérez,Pablo A. Pérez España,Víctor H. Medina-Toledo,Ariadna K. Aparicio-Burgos,José E. Cuervo-Parra,Jaime A.
author_facet	Romero-Cortes,Teresa López-Pérez,Pablo A. Pérez España,Víctor H. Medina-Toledo,Ariadna K. Aparicio-Burgos,José E. Cuervo-Parra,Jaime A.
author_sort	Romero-Cortes,Teresa
title	CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTION
title_short	CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTION
title_full	CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTION
title_fullStr	CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTION
title_full_unstemmed	CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTION
title_sort	confrontation of trichoderma asperellum vsl80 against aspergillus niger via the effect of enzymatic production
publisher	Universidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias Veterinarias
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902019000100068
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CONFRONTATION OF Trichoderma asperellum VSL80 AGAINST Aspergillus niger VIA THE EFFECT OF ENZYMATIC PRODUCTION

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