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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: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6349738/ https://www.ncbi.nlm.nih.gov/pubmed/30723482 http://dx.doi.org/10.3389/fpls.2019.00001 |
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author | Milenovic, Milan Wosula, Everlyne Nafula Rapisarda, Carmelo Legg, James Peter |
author_facet | Milenovic, Milan Wosula, Everlyne Nafula Rapisarda, Carmelo Legg, James Peter |
author_sort | Milenovic, Milan |
collection | PubMed |
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 | Online Article Text |
id | pubmed-6349738 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-63497382019-02-05 Impact of Host Plant Species and Whitefly Species on Feeding Behavior of Bemisia tabaci Milenovic, Milan Wosula, Everlyne Nafula Rapisarda, Carmelo Legg, James Peter Front Plant Sci Plant Science 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. Frontiers Media S.A. 2019-01-22 /pmc/articles/PMC6349738/ /pubmed/30723482 http://dx.doi.org/10.3389/fpls.2019.00001 Text en Copyright © 2019 Milenovic, Wosula, Rapisarda and Legg. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Milenovic, Milan Wosula, Everlyne Nafula Rapisarda, Carmelo Legg, James Peter 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 | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6349738/ https://www.ncbi.nlm.nih.gov/pubmed/30723482 http://dx.doi.org/10.3389/fpls.2019.00001 |
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