Antifungal Activity of Agro-Materials against Pear Scab (Venturia nashicola) and Pear Rust (Gymnosporangium asiaticum) Fungi
This study was conducted to evaluate the antifungal activity of 19 agro-materials that have been registered for organic cultivation in Korea, after inoculation of pear leaves with Venturia nashicola and Gymnosporangium asiaticum. In V. nashicola, most of the nine agro- materials containing sulfur an...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Hanrimwon Publishing Company
2018-03-01
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| Series: | Research in Plant Disease |
| Subjects: | |
| Online Access: | http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2018.24.1.33 |
| _version_ | 1818218293188624384 |
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| author | Janghoon Song Ho-Jin Seo |
| author_facet | Janghoon Song Ho-Jin Seo |
| author_sort | Janghoon Song |
| collection | DOAJ |
| description | This study was conducted to evaluate the antifungal activity of 19 agro-materials that have been registered for organic cultivation in Korea, after inoculation of pear leaves with Venturia nashicola and Gymnosporangium asiaticum. In V. nashicola, most of the nine agro- materials containing sulfur and copper completely inhibited spore germination, and some of the spores that germinated did not form appressoria. However, in only lime sulfur, Neobordeaux (cupric sulfate), and Wheengaris (sulfur) showed antifungal activity against G. asiaticum. Among the agro-materials containing plant extracts, Wheengarujaba (wood vinegar+spirits+rhubarb) inhibited conidial germination in V. nashicola and G. asiaticum by 100% and 71.6%, respectively. Among the agro-materials containing antifungal microorganisms, Cheongotan (Streptomyces griseus) reduced spore germination rate of V. nashicola to 88.8%; moreover, formation of appressoria or intracellular accumulation was not observed. Application of Topsid (Paenibacillus polymyxa) reduced spore germination rates in V. nashicola and G. asiaticum to 71.0% and 90.6%, respectively, and the formation of appressoria was not observed. Studying the antifungal activity of agro-materials because of cumulative applications under the field conditions is necessary, owing to their contact fungicidal effect and the induced-resistance by microbial metabolites and natural compounds. |
| first_indexed | 2024-12-12T07:21:27Z |
| format | Article |
| id | doaj.art-ae4ba2a5ca214782823e3b08dab74a60 |
| institution | Directory Open Access Journal |
| issn | 1598-2262 |
| language | English |
| last_indexed | 2024-12-12T07:21:27Z |
| publishDate | 2018-03-01 |
| publisher | Hanrimwon Publishing Company |
| record_format | Article |
| series | Research in Plant Disease |
| spelling | doaj.art-ae4ba2a5ca214782823e3b08dab74a602022-12-22T00:33:20ZengHanrimwon Publishing CompanyResearch in Plant Disease1598-22622018-03-01241334010.5423/RPD.2018.24.1.3310.5423RPD.2018.24.1.33Antifungal Activity of Agro-Materials against Pear Scab (Venturia nashicola) and Pear Rust (Gymnosporangium asiaticum) FungiJanghoon Song0Ho-Jin Seo1Pear Research Institute, National Institute of Horticultural & Herbal Science, Rural Development Administration, Naju 58216, KoreaPear Research Institute, National Institute of Horticultural & Herbal Science, Rural Development Administration, Naju 58216, KoreaThis study was conducted to evaluate the antifungal activity of 19 agro-materials that have been registered for organic cultivation in Korea, after inoculation of pear leaves with Venturia nashicola and Gymnosporangium asiaticum. In V. nashicola, most of the nine agro- materials containing sulfur and copper completely inhibited spore germination, and some of the spores that germinated did not form appressoria. However, in only lime sulfur, Neobordeaux (cupric sulfate), and Wheengaris (sulfur) showed antifungal activity against G. asiaticum. Among the agro-materials containing plant extracts, Wheengarujaba (wood vinegar+spirits+rhubarb) inhibited conidial germination in V. nashicola and G. asiaticum by 100% and 71.6%, respectively. Among the agro-materials containing antifungal microorganisms, Cheongotan (Streptomyces griseus) reduced spore germination rate of V. nashicola to 88.8%; moreover, formation of appressoria or intracellular accumulation was not observed. Application of Topsid (Paenibacillus polymyxa) reduced spore germination rates in V. nashicola and G. asiaticum to 71.0% and 90.6%, respectively, and the formation of appressoria was not observed. Studying the antifungal activity of agro-materials because of cumulative applications under the field conditions is necessary, owing to their contact fungicidal effect and the induced-resistance by microbial metabolites and natural compounds.http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2018.24.1.33Agro-MaterialsAntifungal activityGymnosporangium asiaticumVenturia nashicola |
| spellingShingle | Janghoon Song Ho-Jin Seo Antifungal Activity of Agro-Materials against Pear Scab (Venturia nashicola) and Pear Rust (Gymnosporangium asiaticum) Fungi Research in Plant Disease Agro-Materials Antifungal activity Gymnosporangium asiaticum Venturia nashicola |
| title | Antifungal Activity of Agro-Materials against Pear Scab (Venturia nashicola) and Pear Rust (Gymnosporangium asiaticum) Fungi |
| title_full | Antifungal Activity of Agro-Materials against Pear Scab (Venturia nashicola) and Pear Rust (Gymnosporangium asiaticum) Fungi |
| title_fullStr | Antifungal Activity of Agro-Materials against Pear Scab (Venturia nashicola) and Pear Rust (Gymnosporangium asiaticum) Fungi |
| title_full_unstemmed | Antifungal Activity of Agro-Materials against Pear Scab (Venturia nashicola) and Pear Rust (Gymnosporangium asiaticum) Fungi |
| title_short | Antifungal Activity of Agro-Materials against Pear Scab (Venturia nashicola) and Pear Rust (Gymnosporangium asiaticum) Fungi |
| title_sort | antifungal activity of agro materials against pear scab venturia nashicola and pear rust gymnosporangium asiaticum fungi |
| topic | Agro-Materials Antifungal activity Gymnosporangium asiaticum Venturia nashicola |
| url | http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2018.24.1.33 |
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