Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.

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“Net blotch” (Drechslera teres) and “Bipolaris spot blotch” (Bipolaris sorokiniana) are foliar diseases of barley. Biological control is currently considered as an efficient alternative to chemical management of these plant diseases. The aim of the present study was to identify 2 isolates of Chaetom...

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Autores principales: Moya, Paulina, Pedemonte, Debora, Amengual, Susana, Franco, Mario E. E., Sisterna, Marina N.
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Sociedad Argentina de Botánica 2016
Materias:
Bipolaris sorokiniana
Chaetomium globosum
Drechslera teres
antibiosis
endófito
micoparasitismo.
endophyte
mycoparasitism.
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/16334
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
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record_format ojs
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 Bipolaris sorokiniana
Chaetomium globosum
Drechslera teres
antibiosis
endófito
micoparasitismo.
Bipolaris sorokiniana
Chaetomium globosum
Drechslera teres
antibiosis
endophyte
mycoparasitism.
spellingShingle Bipolaris sorokiniana
Chaetomium globosum
Drechslera teres
antibiosis
endófito
micoparasitismo.
Bipolaris sorokiniana
Chaetomium globosum
Drechslera teres
antibiosis
endophyte
mycoparasitism.
Moya, Paulina
Pedemonte, Debora
Amengual, Susana
Franco, Mario E. E.
Sisterna, Marina N.
Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.
topic_facet Bipolaris sorokiniana
Chaetomium globosum
Drechslera teres
antibiosis
endófito
micoparasitismo.
Bipolaris sorokiniana
Chaetomium globosum
Drechslera teres
antibiosis
endophyte
mycoparasitism.
author Moya, Paulina
Pedemonte, Debora
Amengual, Susana
Franco, Mario E. E.
Sisterna, Marina N.
author_facet Moya, Paulina
Pedemonte, Debora
Amengual, Susana
Franco, Mario E. E.
Sisterna, Marina N.
author_sort Moya, Paulina
title Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.
title_short Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.
title_full Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.
title_fullStr Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.
title_full_unstemmed Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.
title_sort antagonism and modes of action of chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.
description “Net blotch” (Drechslera teres) and “Bipolaris spot blotch” (Bipolaris sorokiniana) are foliar diseases of barley. Biological control is currently considered as an efficient alternative to chemical management of these plant diseases. The aim of the present study was to identify 2 isolates of Chaetomium (C2 and C5), endophytics on barley seedlings and to study the in vitro interactions with D. teres and B. sorokiniana, isolated from seeds of the same host. Cultural and morphologicalcharacterization of all microorganisms was done. In addition, molecular characterization of Chaetomiumspp. was conducted and dual culture tests were carried out to find, by microscopic observations, the effects of the antagonist on the morphology of the pathogens. The results confirm the identity of the pathogens and the isolates of Chaetomium spp. as Chaetomium globosum species group. Inhibition of B. sorokiniana and D. teres by C2 and C5 accounted for 30% and 31.2 %, and 40% and 36% respectively, compared with the control. The mechanisms of action against B. sorokiniana and D. teres were antibiosis and competition and mycoparasitism, respectively. Microscopic observation revealed deformed conidia in B. sorokiniana and plasmolisis, coiling and orange pigmentation in D. teres.
publisher Sociedad Argentina de Botánica
publishDate 2016
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/16334
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