detrimental effect of rutin on anticarsia gemmatalis efeito prejudicial de rutina em anticarsia gemmatalis

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ID: 205272
2006
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Ranked #65 of 193 articles by views in proc - the fourth ieee workshop on software technol for future embedded and ubiquitous syst, seus 2006 andthe second int workshop on collaborative comput, integr, and assur, wccia 2006

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Abstract
Behavioral and nutritional effect of rutin (quercetin 3-O-rutinosídeo) on Anticarsia gemmatalis Hübner (Lep.: Noctuidae), a major soybean defoliator in Brazil, was evaluated from the third instar to pupation. Rutin is one of the flavonol glycosides identified in the leaves of the wild soybean PI 227687. Larval weight and amount of ingested food decreased as rutin concentration in the diet increase. An interactive effect between feeding time and diet (treatment) was observed on insect growth; when larvae fed on pure-diet, feeding time elongation resulted in heavier pupae. Differently, the weight of larvae fed on rutin-diet remained almost stable, in spite of eating for longer. A. gemmatalis growth was negatively influenced by rutin-diet not only by feeding deterrence but also by post-ingestive effect on insect growth, since after adjustment of pupal weight by the amount of ingested food (covariate), the effect of diet remained significant. Rutin negatively influenced A. gemmatalis growth as result of pre-ingestive effect, indicated by reduction in food consumption, and post-ingestive effect, indicated by lower conversion of ingested food into body mass and food assimilation.
O efeito de dieta contendo rutina (quercetina 3-O-rutinosídeo) no comportamento e na nutrição do principal desfolhador da soja, Anticarsia gemmatalis Hübner (Lep.: Noctuidae) foi avaliado do terceiro ínstar até a formação da pupa. Rutina é um dos flavonóis glicosídicos identificados em folhas da soja selvagem PI 227687. O peso das lagartas e o consumo decresceram com o aumento na concentração de rutina na dieta. Houve interação entre o tempo de alimentação e a dieta no crescimento do inseto; lagartas alimentadas com dieta pura, cujo tempo de alimentação prolongou-se, originaram pupas mais pesadas. O peso das pupas alimentadas com dieta contendo rutina permaneceu estável, apesar do maior tempo de alimentação. Rutina afetou negativamente o crescimento do inseto, não somente pela inibição alimentar, mas também em conseqüência de eventos pós-ingestivos, já que depois do ajuste do peso de pupa pelo consumo (covariável), o efeito do tratamento permaneceu significativo. Assim, o efeito negativo de rutina em A. gemmatalis resulta de efeitos pré-ingestivos, indicados pela redução no consumo, e pós-ingestivos, indicados por baixas conversões do alimento ingerido em biomassa e assimilação de alimentos.
Reference Key
hoffmann-campo2006pesquisadetrimental Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Clara Beatriz Hoffmann-Campo;José Augusto Ramos Neto;Maria Cristina Neves de Oliveira;Lenita Jacob Oliveira
Journal proc - the fourth ieee workshop on software technol for future embedded and ubiquitous syst, seus 2006 andthe second int workshop on collaborative comput, integr, and assur, wccia 2006
Year 2006
DOI
10.1590/S0100-204X2006001000001
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006001000001
Keywords
Lepidoptera flavonol glycoside glycine max

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