Characterization of novel <i>Trichoderma</i> spp. isolates as a search for effective biocontrollers of fungal diseases of economically important crops in Argentina

Monoconidial cultures of 33 isolates of <i>Trichoderma</i> from Buenos Aires Province, Argentina were characterized on the basis of twenty eight morphological, physiological and biochemical features. All of them were screened for proteinase, endochitinase and β-1,3 glucanase activity. Un...

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Detalles Bibliográficos
Autores principales: Consolo, Verónica Fabiana, Mónaco, Cecilia Inés, Cordo, Cristina Alicia, Salerno, Graciela Lidia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Agrarias
Ciencias Naturales
Biocontrol
Characterization
Phytopathogens
Trichoderma spp.
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131623
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131623
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Ciencias Naturales
Biocontrol
Characterization
Phytopathogens
Trichoderma spp.
spellingShingle Ciencias Agrarias
Ciencias Naturales
Biocontrol
Characterization
Phytopathogens
Trichoderma spp.
Consolo, Verónica Fabiana
Mónaco, Cecilia Inés
Cordo, Cristina Alicia
Salerno, Graciela Lidia
Characterization of novel <i>Trichoderma</i> spp. isolates as a search for effective biocontrollers of fungal diseases of economically important crops in Argentina
topic_facet Ciencias Agrarias
Ciencias Naturales
Biocontrol
Characterization
Phytopathogens
Trichoderma spp.
description Monoconidial cultures of 33 isolates of <i>Trichoderma</i> from Buenos Aires Province, Argentina were characterized on the basis of twenty eight morphological, physiological and biochemical features. All of them were screened for proteinase, endochitinase and β-1,3 glucanase activity. Universally primed PCR (UP-PCR) and inter-simple sequence repeat (ISSR) techniques were used to examine the genetic variability among isolates, which resulted in 127 bands for the total number of isolates. These results were subjected to numerical analysis revealing 20 haplotypes grouped in five clusters. The ability of <i>Trichoderma</i> isolates to antogonize soil-borne fungal plant pathogens using a dual culture assay was done against five fungal species: <i>Alternaria</i> sp., <i>Bipolaris sorokiniana</i>, <i>Fusarium graminearum</i>, <i>F. solani</i>, and <i>Pyricularia oryzae</i>. The highest inhibition values (85% RI) were obtained against <i>B. sorokiniana</i> and <i>P. oryzae</i>. Three isolates of <i>T. harzianum</i> named as FCCT2, FCCT3 and FCCT9 were capable of causing a high growth inhibition on four of the fungal species assayed, which was in agreement with their higher extracellular hydrolytic activity. Our results suggest that these isolates have the potential to be effective agents for biocontrol of cereal and tomato fungal pathogens.
format Articulo
Articulo
author Consolo, Verónica Fabiana
Mónaco, Cecilia Inés
Cordo, Cristina Alicia
Salerno, Graciela Lidia
author_facet Consolo, Verónica Fabiana
Mónaco, Cecilia Inés
Cordo, Cristina Alicia
Salerno, Graciela Lidia
author_sort Consolo, Verónica Fabiana
title Characterization of novel <i>Trichoderma</i> spp. isolates as a search for effective biocontrollers of fungal diseases of economically important crops in Argentina
title_short Characterization of novel <i>Trichoderma</i> spp. isolates as a search for effective biocontrollers of fungal diseases of economically important crops in Argentina
title_full Characterization of novel <i>Trichoderma</i> spp. isolates as a search for effective biocontrollers of fungal diseases of economically important crops in Argentina
title_fullStr Characterization of novel <i>Trichoderma</i> spp. isolates as a search for effective biocontrollers of fungal diseases of economically important crops in Argentina
title_full_unstemmed Characterization of novel <i>Trichoderma</i> spp. isolates as a search for effective biocontrollers of fungal diseases of economically important crops in Argentina
title_sort characterization of novel <i>trichoderma</i> spp. isolates as a search for effective biocontrollers of fungal diseases of economically important crops in argentina
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/131623
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