Evaluation in vitro de l'activité antagoniste d'isolats de Trichoderma harzianum Pers. contre trois espèces fongiques pathogènes de l'oignon au Burkina Faso
In vitro Evaluation of Antagonistic Activity of Trichoderma harzianum Pers. Isolates against Three Fungal Species Pathogens of Onion in Burkina Faso. The antagonistic effect of five Trichoderma harzianum Pers. isolates of which four from Burkina Faso and one from South Africa was evaluated in vitro...
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| Format: | Article |
| Language: | English |
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Presses Agronomiques de Gembloux
2016-01-01
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| Series: | Tropicultura |
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| Online Access: | http://www.tropicultura.org/text/v34n3/313.pdf |
| _version_ | 1831521280840433664 |
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| author | Dabire, TG. Bonzi, S. Somda, I. Legreve, A. |
| author_facet | Dabire, TG. Bonzi, S. Somda, I. Legreve, A. |
| author_sort | Dabire, TG. |
| collection | DOAJ |
| description | In vitro Evaluation of Antagonistic Activity of Trichoderma harzianum Pers. Isolates against Three Fungal Species Pathogens of Onion in Burkina Faso. The antagonistic effect of five Trichoderma harzianum Pers. isolates of which four from Burkina Faso and one from South Africa was evaluated in vitro against Aspergillus niger van Tieghem, Fusarium oxysporum f.sp. cepae Schlecht. Emend. Snyd & Hans and Fusarium solani (Mart.) Sacc. regarded as the main onion fungal pathogens in Burkina Faso. The fungal pathogens species and T. harzianum isolates were directly confronted in Petri dishes for seven days. The pathogen radial growth in presence or absence of antagonist was measured. The two isolates with the highest antagonism rates were grown with each pathogen in confrontation at distance. The culture took place in two Petri dishes sealed with parafilm for seven days. The radial growth of each pathogen was measured. All isolates of T. harzianum inhibited the fungal pathogens growth with antagonism ratio ranging from 0.61 to 0.93 and 0.01 to 0.24 respectively by direct and remote confrontation. The isolates ThTab from Burkina Faso and ThAfs from South Africa showed the best antagonism effect and a myco-parasitic action on all tested pathogens. The antagonistic action modes of these isolates and their possible biological control use are discussed. |
| first_indexed | 2024-12-13T17:48:42Z |
| format | Article |
| id | doaj.art-418e8fcbb0e74795a613eb13478de4b0 |
| institution | Directory Open Access Journal |
| issn | 0771-3312 |
| language | English |
| last_indexed | 2024-12-13T17:48:42Z |
| publishDate | 2016-01-01 |
| publisher | Presses Agronomiques de Gembloux |
| record_format | Article |
| series | Tropicultura |
| spelling | doaj.art-418e8fcbb0e74795a613eb13478de4b02022-12-21T23:36:34ZengPresses Agronomiques de GemblouxTropicultura0771-33122016-01-01343313322Evaluation in vitro de l'activité antagoniste d'isolats de Trichoderma harzianum Pers. contre trois espèces fongiques pathogènes de l'oignon au Burkina FasoDabire, TG.Bonzi, S.Somda, I.Legreve, A.In vitro Evaluation of Antagonistic Activity of Trichoderma harzianum Pers. Isolates against Three Fungal Species Pathogens of Onion in Burkina Faso. The antagonistic effect of five Trichoderma harzianum Pers. isolates of which four from Burkina Faso and one from South Africa was evaluated in vitro against Aspergillus niger van Tieghem, Fusarium oxysporum f.sp. cepae Schlecht. Emend. Snyd & Hans and Fusarium solani (Mart.) Sacc. regarded as the main onion fungal pathogens in Burkina Faso. The fungal pathogens species and T. harzianum isolates were directly confronted in Petri dishes for seven days. The pathogen radial growth in presence or absence of antagonist was measured. The two isolates with the highest antagonism rates were grown with each pathogen in confrontation at distance. The culture took place in two Petri dishes sealed with parafilm for seven days. The radial growth of each pathogen was measured. All isolates of T. harzianum inhibited the fungal pathogens growth with antagonism ratio ranging from 0.61 to 0.93 and 0.01 to 0.24 respectively by direct and remote confrontation. The isolates ThTab from Burkina Faso and ThAfs from South Africa showed the best antagonism effect and a myco-parasitic action on all tested pathogens. The antagonistic action modes of these isolates and their possible biological control use are discussed.http://www.tropicultura.org/text/v34n3/313.pdfAspergillus nigerBiological controlFusarium oxysporumFusarium solaniTrichoderma harzianumBurkina Faso |
| spellingShingle | Dabire, TG. Bonzi, S. Somda, I. Legreve, A. Evaluation in vitro de l'activité antagoniste d'isolats de Trichoderma harzianum Pers. contre trois espèces fongiques pathogènes de l'oignon au Burkina Faso Tropicultura Aspergillus niger Biological control Fusarium oxysporum Fusarium solani Trichoderma harzianum Burkina Faso |
| title | Evaluation in vitro de l'activité antagoniste d'isolats de Trichoderma harzianum Pers. contre trois espèces fongiques pathogènes de l'oignon au Burkina Faso |
| title_full | Evaluation in vitro de l'activité antagoniste d'isolats de Trichoderma harzianum Pers. contre trois espèces fongiques pathogènes de l'oignon au Burkina Faso |
| title_fullStr | Evaluation in vitro de l'activité antagoniste d'isolats de Trichoderma harzianum Pers. contre trois espèces fongiques pathogènes de l'oignon au Burkina Faso |
| title_full_unstemmed | Evaluation in vitro de l'activité antagoniste d'isolats de Trichoderma harzianum Pers. contre trois espèces fongiques pathogènes de l'oignon au Burkina Faso |
| title_short | Evaluation in vitro de l'activité antagoniste d'isolats de Trichoderma harzianum Pers. contre trois espèces fongiques pathogènes de l'oignon au Burkina Faso |
| title_sort | evaluation in vitro de l activite antagoniste d isolats de trichoderma harzianum pers contre trois especes fongiques pathogenes de l oignon au burkina faso |
| topic | Aspergillus niger Biological control Fusarium oxysporum Fusarium solani Trichoderma harzianum Burkina Faso |
| url | http://www.tropicultura.org/text/v34n3/313.pdf |
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