Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici on wheat plants

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Trichoderma harzianum inducting resistance to Zymoseptoria tritici. Septoria tritici blotch is endemic in the wheat growing cultivated areas of Argentina, which impacts in the crop yield. One management strategy is to use biocontrol agents. The objective of this work was to determine the effectivene...

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Autores principales: Stocco, Marina C., Mansilla, Andrea Y., Mónaco, Cecilia I., Segarra, Carmen, Lampugnani, Gladys, Abramoff, Cecilia, Marchetti, María F., Kripelz, Natalía, Cordo, Cristina C., Consolo, Verónica F.
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Sociedad Argentina de Botánica 2015
Materias:
Trichoderma harzianum
biocontrol
trigo
Septoriosis
RSI
serín proteasa
wheat
Septoria tritici blotch
ISR
serine protease
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/12519
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10-article-12519
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spelling I10-R10-article-125192020-03-09T19:11:18Z Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici on wheat plants Aislamientos nativos de Trichoderma harzianum inducen resistencia a Zymoseptoria tritici en plantas de trigo. Stocco, Marina C. Mansilla, Andrea Y. Mónaco, Cecilia I. Segarra, Carmen Lampugnani, Gladys Abramoff, Cecilia Marchetti, María F. Kripelz, Natalía Cordo, Cristina C. Consolo, Verónica F. Trichoderma harzianum biocontrol trigo Septoriosis RSI serín proteasa Trichoderma harzianum biocontrol wheat Septoria tritici blotch ISR serine protease Trichoderma harzianum inducting resistance to Zymoseptoria tritici. Septoria tritici blotch is endemic in the wheat growing cultivated areas of Argentina, which impacts in the crop yield. One management strategy is to use biocontrol agents. The objective of this work was to determine the effectiveness of Trichoderma spp. isolated from soils of different growing regions, as antagonist and characterize the T. harzianum effect throughout the proteolytic activity of the serine protease in the wheat plant. To determine the antagonistic capacities of Trichoderma spp. against Zimoseptoria tritici, wheat plants were grown from seeds coated with each of the ninety isolated Trichoderma. Antagonism was assessed 21 days after inoculation by the capacity of each Trichoderma spp. isolate to restrict the progress of the disease. To measure the increasing proteolytic activity, ten isolated T. harzianum characterized by their inhibitory effect over the pathogen, were chosen. Four isolates of the antagonist (strain 2 and 8, from Los Hornos and 129 and 141 from Manfredi localities) simultaneously decreased the pycnidial coverage percentage with a noted increasing of the serine-protease activity in the susceptible wheat cultivar. This behavior is associated to a biochemical mechanism of defense with an early systemic effect. Aislamientos nativos de Trichoderma harzianum inducen resistencia a Zymoseptoria tritici en plantas de trigo. La Septoriosis del trigo es endémica en las regiones productoras de Argentina, impactando en su rendimiento. Una alternativa de manejo, es el uso de agentes de biocontrol. Se propuso: determinar la efectividad de los aislamientos de Trichoderma obtenidos a partir de suelos de diferentes localidades de la región triguera argentina, sobre el control de la enfermedad y caracterizar la actividad de la serín proteasa (con capacidad antifúngica) del fluido intercelular de trigo generada por los mejores aislamientos. Para determinar la capacidad biocontroladora de los 90 aislamientos de Trichoderma, se sembraron semillas recubiertas con cada uno de los antagonistas y posteriormente las plántulas se inocularon con Zymoseptoria tritici. Se evaluó la capacidad de cada aislamiento del biocontrolador para restringir el progreso de la septoriosis 21 días después de la inoculación. A las plantas tratadas con las 10 mejores cepas de T. harzianum, se les midió el incremento de la actividad proteolítica. Cuatro de los aislamientos (2 y 8, de Los Hornos y 129 y 141 de Manfredi) disminuyeron el porcentaje de cobertura picnidial y se destacaron por el aumento de la actividad proteolítica en un cultivar susceptible. Éste comportamiento se asocia a un mecanismo bioquímico de defensa con un efecto sistémico temprano. Sociedad Argentina de Botánica 2015-10-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/12519 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 50 No. 3 (2015): Setiembre; 291-301 Boletín de la Sociedad Argentina de Botánica; Vol. 50 Núm. 3 (2015): Setiembre; 291-301 Boletín de la Sociedad Argentina de Botánica; v. 50 n. 3 (2015): Setiembre; 291-301 1851-2372 0373-580X 10.31055/1851.2372.v50.n3 eng https://revistas.unc.edu.ar/index.php/BSAB/article/view/12519/12798 Derechos de autor 2015 Boletín de la Sociedad Argentina de Botánica
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
language Inglés
format Artículo revista
topic Trichoderma harzianum
biocontrol
trigo
Septoriosis
RSI
serín proteasa
Trichoderma harzianum
biocontrol
wheat
Septoria tritici blotch
ISR
serine protease
spellingShingle Trichoderma harzianum
biocontrol
trigo
Septoriosis
RSI
serín proteasa
Trichoderma harzianum
biocontrol
wheat
Septoria tritici blotch
ISR
serine protease
Stocco, Marina C.
Mansilla, Andrea Y.
Mónaco, Cecilia I.
Segarra, Carmen
Lampugnani, Gladys
Abramoff, Cecilia
Marchetti, María F.
Kripelz, Natalía
Cordo, Cristina C.
Consolo, Verónica F.
Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici on wheat plants
topic_facet Trichoderma harzianum
biocontrol
trigo
Septoriosis
RSI
serín proteasa
Trichoderma harzianum
biocontrol
wheat
Septoria tritici blotch
ISR
serine protease
author Stocco, Marina C.
Mansilla, Andrea Y.
Mónaco, Cecilia I.
Segarra, Carmen
Lampugnani, Gladys
Abramoff, Cecilia
Marchetti, María F.
Kripelz, Natalía
Cordo, Cristina C.
Consolo, Verónica F.
author_facet Stocco, Marina C.
Mansilla, Andrea Y.
Mónaco, Cecilia I.
Segarra, Carmen
Lampugnani, Gladys
Abramoff, Cecilia
Marchetti, María F.
Kripelz, Natalía
Cordo, Cristina C.
Consolo, Verónica F.
author_sort Stocco, Marina C.
title Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici on wheat plants
title_short Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici on wheat plants
title_full Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici on wheat plants
title_fullStr Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici on wheat plants
title_full_unstemmed Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici on wheat plants
title_sort native isolates of trichoderma harzianum inducting resistance to zymoseptoria tritici on wheat plants
description Trichoderma harzianum inducting resistance to Zymoseptoria tritici. Septoria tritici blotch is endemic in the wheat growing cultivated areas of Argentina, which impacts in the crop yield. One management strategy is to use biocontrol agents. The objective of this work was to determine the effectiveness of Trichoderma spp. isolated from soils of different growing regions, as antagonist and characterize the T. harzianum effect throughout the proteolytic activity of the serine protease in the wheat plant. To determine the antagonistic capacities of Trichoderma spp. against Zimoseptoria tritici, wheat plants were grown from seeds coated with each of the ninety isolated Trichoderma. Antagonism was assessed 21 days after inoculation by the capacity of each Trichoderma spp. isolate to restrict the progress of the disease. To measure the increasing proteolytic activity, ten isolated T. harzianum characterized by their inhibitory effect over the pathogen, were chosen. Four isolates of the antagonist (strain 2 and 8, from Los Hornos and 129 and 141 from Manfredi localities) simultaneously decreased the pycnidial coverage percentage with a noted increasing of the serine-protease activity in the susceptible wheat cultivar. This behavior is associated to a biochemical mechanism of defense with an early systemic effect.
publisher Sociedad Argentina de Botánica
publishDate 2015
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/12519
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first_indexed 2022-08-20T01:20:28Z
last_indexed 2022-08-20T01:20:28Z
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