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      Efeito do extrato etanólico de sementes de Annona mucosa no desenvolvimento e comportamento alimentar de Spodoptera frugiperda Translated title: Effect of ethanolic extract from Annona mucosa seeds on development and feeding behavior of Spodoptera frugiperda

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          Abstract

          RESUMO No Brasil, a lagarta-do-cartucho Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) é uma praga importante do milho e de outras espécies cultivadas, incluindo cultivos hortícolas, soja, arroz e algodão. Inseticidas botânicos são considerados uma opção interessante para o manejo de S. frugiperda, especialmente em sistemas de produção orgânica, e derivados de Annonaceae constituem uma fonte promissora destes. Diante desse potencial, o efeito do extrato etanólico de sementes de Annona mucosa — ESAM (Annonaceae) no desenvolvimento e comportamento alimentar de S. frugiperda foi avaliado através de bioensaios de exposição em meio artificial (ingestão). ESAM reduziu a viabilidade das fases larval e pupal e o peso de pupa bem como provocou um aumento na duração da fase larval de S. frugiperda. Além disso, ESAM também causou um aumento na proporção de pupas e adultos com alterações morfológicas. Entretanto, ESAM não causou efeito deterrente de alimentação para lagartas de quarto ínstar de S. frugiperda, embora esse extrato tenha ocasionado um decréscimo significativo no consumo ao longo do tempo (toxicidade pós-ingestão).

          Translated abstract

          ABSTRACT In Brazil, the fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is an important pest of maize and other crops including horticultural crops, soybean, rice, and cotton. Botanical insecticides are an interesting option for S. frugiperda management especially in organic production systems, and annonaceous derivatives have been considered a promising source of them. In light of this potential, we investigated the antifeedant and growth inhibitory effects of ethanolic extract from Annona mucosa seeds — ESAM (Annonaceae) against S. frugiperda using dietary exposure bioassays. ESAM decreased larval and pupal viabilities and also the pupal weight as well as increased the larval phase duration of S. frugiperda. Moreover, ESAM also caused an increase in the proportion of pupae and adults with morphological changes. However, ESAM did not cause antifeedant effect for 4-instar S. frugiperda larvae, though it decreased consumption throughout the time (post-ingestive toxicity).

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              Acetogenins from Annonaceae: recent progress in isolation, synthesis and mechanisms of action.

              The aim of the present review is to summarise the knowledge about newly isolated acetogenins (ACGs) in the last six years. It will also report the total syntheses that have allowed either the confirmation or the revision of some structures, together with the biological activities and mechanism of action of such interesting natural products. In fact, of the 417 isolated compounds reviewed, over 176 have been added during the period from 1998 to 2004.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                brag
                Bragantia
                Bragantia
                Instituto Agronômico de Campinas
                1678-4499
                September 2016
                : 75
                : 3
                : 322-330
                Affiliations
                [1 ] Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina Brazil
                [2 ] Universidade de São Paulo Brazil
                Article
                S0006-87052016000300322
                10.1590/1678-4499.473
                937eddff-9741-4909-9761-0e770da06de7

                This work is licensed under a Creative Commons Attribution 4.0 International License.

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0006-8705&lng=en
                Categories
                AGRICULTURE, MULTIDISCIPLINARY

                General agriculture
                botanical insecticides,fall armyworm,acetogenins,sublethal effects,inseticidas botânicos,lagarta-do-cartucho,acetogeninas,efeitos subletais

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