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Feeding behavior, life history, and virus transmission ability of Bemisia tabaci Mediterranean species (Hemiptera: Aleyrodidae) under elevated CO 2

The continuous rise of CO concentrations in the atmosphere is reducing plant nutritional quality for herbivores and indirectly affects their performance. The whitefly (Bemisia tabaci, Gennadius) is a major worldwide pest of agricultural crops causing significant yield losses. This study investigated...

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Published in:Insect science 2020-06, Vol.27 (3), p.558-570
Main Authors: Peñalver-Cruz, Ainara, Garzo, Elisa, Prieto-Ruiz, Inés, Díaz-Carro, Miguel, Winters, Ana, Moreno, Aránzazu, Fereres, Alberto
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Language:English
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cited_by cdi_FETCH-LOGICAL-c1095-9015c31939cb5dacf85101759a9693946d0b392463c7dec9d2bf5e051d550b43
cites cdi_FETCH-LOGICAL-c1095-9015c31939cb5dacf85101759a9693946d0b392463c7dec9d2bf5e051d550b43
container_end_page 570
container_issue 3
container_start_page 558
container_title Insect science
container_volume 27
creator Peñalver-Cruz, Ainara
Garzo, Elisa
Prieto-Ruiz, Inés
Díaz-Carro, Miguel
Winters, Ana
Moreno, Aránzazu
Fereres, Alberto
description The continuous rise of CO concentrations in the atmosphere is reducing plant nutritional quality for herbivores and indirectly affects their performance. The whitefly (Bemisia tabaci, Gennadius) is a major worldwide pest of agricultural crops causing significant yield losses. This study investigated the plant-mediated indirect effects of elevated CO on the feeding behavior and life history of B. tabaci Mediterranean species. Eggplants were grown under elevated and ambient CO concentrations for 3 weeks after which plants were either used to monitor the feeding behavior of whiteflies using the Electrical Penetration Graph technique or to examine fecundity and fertility of whiteflies. Plant leaf carbon, nitrogen, phenols and protein contents were also analyzed for each treatment. Bemisia tabaci feeding on plants exposed to elevated CO showed a longer phloem ingestion and greater fertility compared to those exposed to ambient CO suggesting that B. tabaci is capable of compensating for the plant nutritional deficit. Additionally, this study looked at the transmission of the virus Tomato yellow leaf curl virus (Begomovirus) by B. tabaci exposing source and receptor tomato plants to ambient or elevated CO levels before or after virus transmission tests. Results indicate that B. tabaci transmitted the virus at the same rate independent of the CO levels and plant treatment. Therefore, we conclude that B. tabaci Mediterranean species prevails over the difficulties that changes in CO concentrations may cause and it is predicted that under future climate change conditions, B. tabaci would continue to be considered a serious threat for agriculture worldwide.
doi_str_mv 10.1111/1744-7917.12661
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title Feeding behavior, life history, and virus transmission ability of Bemisia tabaci Mediterranean species (Hemiptera: Aleyrodidae) under elevated CO 2
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