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Insecticidal effects of acetogenins from rollinia occidentalis seed extract

机译:西洋roll草种子提取物中产乙酸素的杀虫作用

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From the methanol seed extract of Rollinia occidentalis five acetogenins were isolated, sylvaticin (1), rolliniastatin-1 (2), rolliniastatin-2 (3), motrilin (4) and desacetyluvaricin (5), and evaluated for their toxicity and nutritional alterations on Spodoptera frugiperda Smith (Lepidoptera: Noctuidae). All but one of the compounds produced more than 90% mortality on early larval instars at 50 and 100 μg per g of diet. Sylvaticin caused 15 and 60% mortality at 50 and 100 μg/g, respectively, while the methanol seed extract reached 35 and 50% at 100 and 250 μg/g, respectively. The addition of R. occidentalis methanolic seed extract (100 and 250 μg/g) and sylvaticin (100 μg/g) to the larval diet brought about significant changes to the nutritional indices in connection with larvae fed the control diet. This is the first report on the isolation of acetogenins from R. occidentalis and their insecticidal effects on S. frugiperda.
机译:从西洋Roll草的甲醇种子提取物中分离出五种乙酸原素,分别是西尔维汀(1),罗尼司汀1(2),罗尼司他汀2(3),莫特里林(4)和去乙酰古霉素(5),并对其毒性和营养变化进行了评估。在夜蛾(Spodoptera frugiperda Smith)(鳞翅目:夜蛾科)上。除一种化合物外,其他化合物在每克日粮中分别含有50和100μg的幼虫时,死亡率超过90%。 Sylvaticin在50和100μg/ g时分别导致15%和60%的死亡率,而甲醇种子提取物在100和250μg/ g时分别达到35%和50%。在幼虫饮食中添加西洋参甲醇种子提取物(100和250μg/ g)和西尔维汀(100μg/ g),与对照饮食喂养的幼虫有关,营养指数发生了显着变化。这是关于从西方罗非鱼中分离出产乙酸素及其对S. frugiperda的杀虫作用的首次报道。

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