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首页> 外文期刊>Journal of Stored Products Research >Antifeedant activities of terpenoids isolated from tropical Rutales.
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Antifeedant activities of terpenoids isolated from tropical Rutales.

机译：从热带Rutales中分离出来的类萜的拒食活性。

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摘要

Terpenes isolated from tropical species of the Rutales were tested for insect antifeedant activity against rice weevil, Sitophilus oryzae (L.) using a flour disk bioassay that requires only small amounts of compounds (0, 0.05, 0.25 and 0.50% w/w). At 0.50% (w/w) five compounds isolated from Lansium domesticum (iso-onoceratriene, 3-keto-22-hydroxyonoceradiene, onoceradienedione, lansiolic acid and lansiolic acid A) were shown to exhibit significant antifeedant activity. Humilinolide C and D isolated from Swietenia humilis, and gedunin from Cedrela odorata, were also active at 0.50% (w/w). The most interesting results were obtained from the spirocaracolitones from Ruptiliocarpon caracolito which produced total feeding inhibition at 0.50% and potent antifeedant activity at concentrations as low as 0.05%. In conclusion, the antifeedant bioassay provides a rapid and inexpensive method for screening novel compounds available in small quantities to assess their activity as insect antifeedants.
机译：使用仅需要少量化合物（0、0.05、0.25和0.50％w / w）的面粉圆盘生物测定法，测试了从Rutales热带物种中分离出的萜烯对水稻象鼻虫Sitophilus oryzae（L.）的昆虫拒食活性。以0.50％（w / w）的比例，从家Lan中分离出的五种化合物（异二十碳三烯，3-酮-22-羟基二十碳二烯，二十二碳二烯，镧硅酸和镧硅酸A）显示出显着的拒食活性。分离自Huwilis Swietenia的Humilinolide C和D，以及来自Cedrela odorata的葛根素也具有0.50％（w / w）的活性。最有意思的结果是从南美大黄R中的螺氨基甲酸酯获得的，其总进食抑制率为0.50％，有效的拒食活性在浓度低至0.05％时。总之，拒食生物测定法提供了一种快速，廉价的方法，用于筛选少量可用的新型化合物以评估其作为昆虫拒食剂的活性。

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