Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases.
“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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| Formato: | Artículo revista |
| Lenguaje: | Inglés |
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Sociedad Argentina de Botánica
2016
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/16334 |
| Aporte de: |
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I10-R325-article-16334 |
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| record_format |
ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-325 |
| container_title_str |
Boletín de la Sociedad Argentina de Botánica |
| 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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2024-09-03T22:48:41Z |
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2024-09-03T22:48:41Z |
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I10-R325-article-163342019-12-14T13:48:26Z Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases. Antagonismo y mecanismos de acción de hongos del grupo de especies Chaetomium globosum, potenciales biocontroladores de enfermedades fúngicas foliares de la cebada. Moya, Paulina Pedemonte, Debora Amengual, Susana Franco, Mario E. E. Sisterna, Marina N. Bipolaris sorokiniana Chaetomium globosum Drechslera teres antibiosis endófito micoparasitismo. Bipolaris sorokiniana Chaetomium globosum Drechslera teres antibiosis endophyte mycoparasitism. “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. Antagonismo y mecanismos de acción de hongos del grupo de especies Chaetomium globosum, potenciales biocontroladores de enfermedades fúngicas foliares de la cebada. La “mancha enred y la “mancha borrosa” son enfermedades foliares de cebada causadas por Drechslera teres y Bipolaris sorokiniana, respectivamente. Una alternativa para su manejo es el control biológico. El objetivo de este trabajo fue identificar dos aislamientos del género Chaetomium (C2 y C5), endofíticos de plántulas decebada y estudiar sus interacciónes in vitro con D. teres y B. sorokiniana, aisladas de semillas del mismo hospedante. Todos los microorganismos se caracterizaron cultural y morfológicamente. Los aislamientos de Chaetomium además se caracterizaron molecularmente. Se realizaron pruebas de cultivos duales yse registraron los efectos del antagonista a nivel microscópico en la morfología de los patógenos. Los resultados confirmaron la identidad de los patógenos y de los aislamientos de Chaetomium spp. comoChaetomium globosum grupo de especies. Bipolaris sorokiniana fue inhibida en un 30% por C2 y en un 31.2 % por C5 respecto al control. D.teres fue inhibida en un 40% por C2 y en un 36% por C5 enreferencia al control. Los mecanismos de acción frente a B. sorokiniana fueron antibiosis y competencia.Microscopicamente se observaron conidios aberrantes. Frente a D. teres se registró competencia y micoparasitismo. Microscópicamente se evidenció plasmólisis, enrollamiento y pigmentación anaranjada. Sociedad Argentina de Botánica 2016-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/16334 10.31055/1851.2372.v51.n4.16334 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 51 No. 4 (2016): December; 569-578 Boletín de la Sociedad Argentina de Botánica; Vol. 51 Núm. 4 (2016): Diciembre; 569-578 Boletín de la Sociedad Argentina de Botánica; v. 51 n. 4 (2016): Diciembre; 569-578 1851-2372 0373-580X 10.31055/1851.2372.v51.n4 eng https://revistas.unc.edu.ar/index.php/BSAB/article/view/16334/16194 Derechos de autor 2016 Boletín de la Sociedad Argentina de Botánica |