Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta)
Cassava mosaic disease (CMD), caused by cassava mosaic geminiviruses (CMGs), is a major constraint to the cassava crop in Africa and southeastern Asia. Here, we investigated the ability of acibenzolar-S-methyl (ASM), a functional analog of salicylic acid (SA), to trigger systemic acquired resistance...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Elsevier
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/115130 |
| _version_ | 1855537277253451776 |
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| author | Doungous, O. Khatabi, B. Hanna, R. Tchuanyo, M. Fotso Kuate, A. Fondong, V.N. |
| author_browse | Doungous, O. Fondong, V.N. Fotso Kuate, A. Hanna, R. Khatabi, B. Tchuanyo, M. |
| author_facet | Doungous, O. Khatabi, B. Hanna, R. Tchuanyo, M. Fotso Kuate, A. Fondong, V.N. |
| author_sort | Doungous, O. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Cassava mosaic disease (CMD), caused by cassava mosaic geminiviruses (CMGs), is a major constraint to the cassava crop in Africa and southeastern Asia. Here, we investigated the ability of acibenzolar-S-methyl (ASM), a functional analog of salicylic acid (SA), to trigger systemic acquired resistance (SAR) against two CMGs, namely African cassava mosaic virus (ACMV) and East African cassava mosaic Cameroon virus (EACMCV) in Nicotiana benthamiana. ASM treatment delayed the time to first viral symptoms appearance, reduced virus infection rate, and attenuated symptoms. Furthermore, ASM caused an enhanced recovery from symptoms of both viruses and inhibited plant death observed in N. benthamiana plants infected by EACMCV. This study further showed that ASM induced resistance to the whitefly Bemisia tabaci (Gennadius), the vector of CMGs, in cassava. Notably, we observed that ASM treatment affected adult whitefly feeding preference and oviposition in cassava under both choice and no-choice conditions. A significant reduction in whitefly adult, egg, and nymph populations was observed irrespective of ASM treatment. The results of this study show that ASM has the potential to control both CMGs and their whitefly vector which is an important first step toward managing whitefly and cassava viruses. |
| format | Journal Article |
| id | CGSpace115130 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1151302023-12-08T19:36:04Z Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta) Doungous, O. Khatabi, B. Hanna, R. Tchuanyo, M. Fotso Kuate, A. Fondong, V.N. cassava african cassava mosaic virus bemisia tabaci nicotiana cameroon Cassava mosaic disease (CMD), caused by cassava mosaic geminiviruses (CMGs), is a major constraint to the cassava crop in Africa and southeastern Asia. Here, we investigated the ability of acibenzolar-S-methyl (ASM), a functional analog of salicylic acid (SA), to trigger systemic acquired resistance (SAR) against two CMGs, namely African cassava mosaic virus (ACMV) and East African cassava mosaic Cameroon virus (EACMCV) in Nicotiana benthamiana. ASM treatment delayed the time to first viral symptoms appearance, reduced virus infection rate, and attenuated symptoms. Furthermore, ASM caused an enhanced recovery from symptoms of both viruses and inhibited plant death observed in N. benthamiana plants infected by EACMCV. This study further showed that ASM induced resistance to the whitefly Bemisia tabaci (Gennadius), the vector of CMGs, in cassava. Notably, we observed that ASM treatment affected adult whitefly feeding preference and oviposition in cassava under both choice and no-choice conditions. A significant reduction in whitefly adult, egg, and nymph populations was observed irrespective of ASM treatment. The results of this study show that ASM has the potential to control both CMGs and their whitefly vector which is an important first step toward managing whitefly and cassava viruses. 2021-12 2021-09-23T15:05:52Z 2021-09-23T15:05:52Z Journal Article https://hdl.handle.net/10568/115130 en Limited Access Elsevier Doungous, O., Khatabi, B., Hanna, R., Tchuanyo, M., Fotso Kuate, A. & Fondong, V.N. (2021). Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta). Crop Protection, 150, 105796: 1-6. |
| spellingShingle | cassava african cassava mosaic virus bemisia tabaci nicotiana cameroon Doungous, O. Khatabi, B. Hanna, R. Tchuanyo, M. Fotso Kuate, A. Fondong, V.N. Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta) |
| title | Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta) |
| title_full | Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta) |
| title_fullStr | Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta) |
| title_full_unstemmed | Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta) |
| title_short | Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta) |
| title_sort | acibenzolar s methyl induces resistance against cassava mosaic geminiviruses in nicotiana benthamiana and their vector bemisia tabaci in cassava manihot esculenta |
| topic | cassava african cassava mosaic virus bemisia tabaci nicotiana cameroon |
| url | https://hdl.handle.net/10568/115130 |
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