Cristiane Nardi, Caroline Rech, Luana Karolline Ribeiro, Renato Barros de Lima Filho, João Ronaldo Freitas de Oliveira, José Maurício Simões Bento, Juliano Tadeu Vilella de Resende
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引用次数: 0
Abstract
Zingiberene is an allelochemical found in wild Solanum species and plants resulting from crosses between these and S. lycopersicum. This sesquiterpene is known to reduce the performance of pest herbivores. Diabrotica speciosa has been identified as a potential tomato pest in important producing regions in Brazil, causing damage to leaves and fruits. Therefore, in this study, we investigated how zingiberene, found in advanced tomato genotypes, can affect the food preference, oviposition and longevity of South American corn rootworm, D. speciosa. The feeding behavior of adults was evaluated in bioassays with and without choice. Additionally, a damage scale for tomato plants was constructed to estimate consumption levels in each genotype. Longevity data and the number of eggs deposited on leaflets were obtained from females kept in cages and fed with tomato leaves from each genotype individually. High levels of zingiberene affected the host selection behavior for feeding and the number of eggs deposited by D. speciosa, so that high levels of the compound increased mortality and reduced adult oviposition, which implies the first record of the action of this compound on this insect. These results can guide breeding programs to obtain genotypes that express high levels of zingiberene, which will present greater resistance to the insect, reducing insecticide applications.
Graphical abstract
Summary of the effects of high levels of zingiberene in tomato plants (Solanum spp.) on the biological and behavioral aspects of Diabrotica speciosa (Coleoptera: Chrysomelidae).Ali et., 2019; Rakha et al. 2017; Zeist et al. 2019a, b; Oliveira et al. 2020.
期刊介绍：
Arthropod-Plant Interactions is dedicated to publishing high quality original papers and reviews with a broad fundamental or applied focus on ecological, biological, and evolutionary aspects of the interactions between insects and other arthropods with plants. Coverage extends to all aspects of such interactions including chemical, biochemical, genetic, and molecular analysis, as well reporting on multitrophic studies, ecophysiology, and mutualism.
Arthropod-Plant Interactions encourages the submission of forum papers that challenge prevailing hypotheses. The journal encourages a diversity of opinion by presenting both invited and unsolicited review papers.
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