Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci
Whiteflies of the Bemisia tabaci species complex are economically important pests of cassava. In Africa, they cause greatest damage through vectoring viruses responsible for cassava mosaic disease and cassava brown streak disease. Several cryptic species from the B. tabaci complex colonize cassava a...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Frontiers Media
2019
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/102089 |
| _version_ | 1855523597925220352 |
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| author | Milenovic, M. Wosula, Everlyne N. Rapisarda, Carmelo Legg, James P. |
| author_browse | Legg, James P. Milenovic, M. Rapisarda, Carmelo Wosula, Everlyne N. |
| author_facet | Milenovic, M. Wosula, Everlyne N. Rapisarda, Carmelo Legg, James P. |
| author_sort | Milenovic, M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Whiteflies of the Bemisia tabaci species complex are economically important pests of cassava. In Africa, they cause greatest damage through vectoring viruses responsible for cassava mosaic disease and cassava brown streak disease. Several cryptic species from the B. tabaci complex colonize cassava and neighboring crops, but the feeding interactions between the different crops and B. tabaci species are unknown. The electrical penetration graph (EPG) technique makes it possible to conduct detailed feeding studies of sap-sucking insects by creating an electric circuit through the insect and the plant. The apparatus measures the voltage fluctuations while the wired-up insect feeds and produces graphs that describe feeding behavior. We utilized EPG to explore the feeding behavior of cassava-colonizing whiteflies (SSA1-SG3) on cassava, sweet potato, tomato, and cotton; and sweet potato-colonizing whiteflies (MED and IO) on cassava and sweet potato. Results show that: (1) feeding of SSA1-SG3 is not restricted to cassava. The least preferred host for SSA1-SG3 was tomato, where probing was delayed by 99 min compared to 10 min on other hosts, furthermore mean duration of phloem ingestion events was 36 min compared to 260 min on cassava. (2) Feeding of MED on cassava appeared to be non-functional, as it was characterized by short total phloem ingestion periods (<1 h) and few, short ingestion events, in contrast to feeding on sweet potato which was characterized by long phloem ingestion periods (>5 h). (3) Wire diameter affects the feeding in a statistically and practically significant manner. Implications for whitefly control and studies of host whitefly resistance are discussed. |
| format | Journal Article |
| id | CGSpace102089 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1020892025-11-11T10:14:54Z Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci Milenovic, M. Wosula, Everlyne N. Rapisarda, Carmelo Legg, James P. cassava sweet potatoes bemisia tabaci feeding habits whiteflies Whiteflies of the Bemisia tabaci species complex are economically important pests of cassava. In Africa, they cause greatest damage through vectoring viruses responsible for cassava mosaic disease and cassava brown streak disease. Several cryptic species from the B. tabaci complex colonize cassava and neighboring crops, but the feeding interactions between the different crops and B. tabaci species are unknown. The electrical penetration graph (EPG) technique makes it possible to conduct detailed feeding studies of sap-sucking insects by creating an electric circuit through the insect and the plant. The apparatus measures the voltage fluctuations while the wired-up insect feeds and produces graphs that describe feeding behavior. We utilized EPG to explore the feeding behavior of cassava-colonizing whiteflies (SSA1-SG3) on cassava, sweet potato, tomato, and cotton; and sweet potato-colonizing whiteflies (MED and IO) on cassava and sweet potato. Results show that: (1) feeding of SSA1-SG3 is not restricted to cassava. The least preferred host for SSA1-SG3 was tomato, where probing was delayed by 99 min compared to 10 min on other hosts, furthermore mean duration of phloem ingestion events was 36 min compared to 260 min on cassava. (2) Feeding of MED on cassava appeared to be non-functional, as it was characterized by short total phloem ingestion periods (<1 h) and few, short ingestion events, in contrast to feeding on sweet potato which was characterized by long phloem ingestion periods (>5 h). (3) Wire diameter affects the feeding in a statistically and practically significant manner. Implications for whitefly control and studies of host whitefly resistance are discussed. 2019-01-22 2019-07-05T15:12:39Z 2019-07-05T15:12:39Z Journal Article https://hdl.handle.net/10568/102089 en Open Access application/pdf Frontiers Media Milenovic, M., Wosula, E.N., Rapisarda, C. & Legg, J. (2019). Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci. Frontiers in Plant Science, 10(1), 1-14. |
| spellingShingle | cassava sweet potatoes bemisia tabaci feeding habits whiteflies Milenovic, M. Wosula, Everlyne N. Rapisarda, Carmelo Legg, James P. Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci |
| title | Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci |
| title_full | Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci |
| title_fullStr | Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci |
| title_full_unstemmed | Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci |
| title_short | Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci |
| title_sort | impact of host plant species and whitefly species on feeding behavior of bemisia tabaci |
| topic | cassava sweet potatoes bemisia tabaci feeding habits whiteflies |
| url | https://hdl.handle.net/10568/102089 |
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