The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersici

Four isolates of Trichoderma harzianum (ThN3, Th11, Th12 and Th16) were selected for their ability to control the in vitro development of the tomato root pathogen Pyrenochaeta lycopersici. Analysis of the mechanisms involved in biocontrol showed that the formation of non-volatile metabolites appears...

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Autores principales:	PÉREZ,LUZ MARÍA, BESOAÍN,XIMENA, REYES,MAURICIO, PARDO,GONZALO, MONTEALEGRE,JAIME
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2002
Materias:	biological control corky root tomato root diseases
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602002000300014
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spelling	oai:scielo:S0716-976020020003000142003-11-26The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersiciPÉREZ,LUZ MARÍABESOAÍN,XIMENAREYES,MAURICIOPARDO,GONZALOMONTEALEGRE,JAIME biological control corky root tomato root diseases Four isolates of Trichoderma harzianum (ThN3, Th11, Th12 and Th16) were selected for their ability to control the in vitro development of the tomato root pathogen Pyrenochaeta lycopersici. Analysis of the mechanisms involved in biocontrol showed that the formation of non-volatile metabolites appears to be one of those involved in biocontrol of P. lycopersici by all T. harzianum isolates tested. Nevertheless, the higher secretion of chitinases, both in number of isoenzymes and activity by the Th11 strain, correlated well with its higher ability to control this agent in laboratory and greenhouse experiments as compared to the other T. harzianum isolates tested. The secretion of ß -1,3-endoglucanases and/or proteases appeared to have less significance than endochitinases in the biological control of P. lycopersiciinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.35 n.3-4 20022002-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602002000300014en10.4067/S0716-97602002000300014
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	biological control corky root tomato root diseases
spellingShingle	biological control corky root tomato root diseases PÉREZ,LUZ MARÍA BESOAÍN,XIMENA REYES,MAURICIO PARDO,GONZALO MONTEALEGRE,JAIME The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersici
description	Four isolates of Trichoderma harzianum (ThN3, Th11, Th12 and Th16) were selected for their ability to control the in vitro development of the tomato root pathogen Pyrenochaeta lycopersici. Analysis of the mechanisms involved in biocontrol showed that the formation of non-volatile metabolites appears to be one of those involved in biocontrol of P. lycopersici by all T. harzianum isolates tested. Nevertheless, the higher secretion of chitinases, both in number of isoenzymes and activity by the Th11 strain, correlated well with its higher ability to control this agent in laboratory and greenhouse experiments as compared to the other T. harzianum isolates tested. The secretion of ß -1,3-endoglucanases and/or proteases appeared to have less significance than endochitinases in the biological control of P. lycopersici
author	PÉREZ,LUZ MARÍA BESOAÍN,XIMENA REYES,MAURICIO PARDO,GONZALO MONTEALEGRE,JAIME
author_facet	PÉREZ,LUZ MARÍA BESOAÍN,XIMENA REYES,MAURICIO PARDO,GONZALO MONTEALEGRE,JAIME
author_sort	PÉREZ,LUZ MARÍA
title	The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersici
title_short	The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersici
title_full	The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersici
title_fullStr	The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersici
title_full_unstemmed	The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersici
title_sort	expression of extracellular fungal cell wall hydrolytic enzymes in different trichoderma harzianum isolates correlates with their ability to control pyrenochaeta lycopersici
publisher	Sociedad de Biología de Chile
publishDate	2002
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602002000300014
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The expression of extracellular fungal cell wall hydrolytic enzymes in different Trichoderma harzianum isolates correlates with their ability to control Pyrenochaeta lycopersici

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