Yang Minli, Lin Kun
a College of Life and Environmental Science , Shanghai Normal University , Shanghai , China.
Nat Prod Res. 2017 Sep;31(17):2049-2052. doi: 10.1080/14786419.2016.1269092. Epub 2016 Dec 22.
The ethanol extract from Inula salsoloides (Turcz.) Ostenf was found to cause high mortality against Plutella xylostella L. (Lepidoptera: Plutellidae). The active components were isolated and identified. Two compounds were obtained and identified to be inulasalsolin and taraxasterol. Both compounds showed anti-feedant effects against third instar larvae of P. xylostella with AFC of 0.030 and 0.053 mg/mL and insecticidal activities with LC of 0.19 and 0.49 mg/mL, respectively. The two compounds also exhibited high toxicity to cabbage aphid, Brevicoryne brassicae L. (Hemiptera: Aphididae) with LC values of 0.021 and 0.098 mg/mL. This is the first report on the study of insecticidal components of I. salsoloides and their activity against insects.
研究发现，糙叶旋覆花（Inula salsoloides (Turcz.) Ostenf）的乙醇提取物对小菜蛾（Plutella xylostella L.，鳞翅目：菜蛾科）具有较高的致死率。对其活性成分进行了分离和鉴定。得到了两种化合物，分别鉴定为旋覆花内酯和蒲公英甾醇。这两种化合物对小菜蛾三龄幼虫均表现出拒食作用，拒食中浓度（AFC）分别为0.030和0.053毫克/毫升，且具有杀虫活性，致死中浓度（LC）分别为0.19和0.49毫克/毫升。这两种化合物对甘蓝蚜（Brevicoryne brassicae L.，半翅目：蚜科）也表现出高毒性，致死中浓度（LC）值分别为0.021和0.098毫克/毫升。这是关于糙叶旋覆花杀虫成分及其对昆虫活性研究的首次报道。
