植物源物质诱导的斜纹夜蛾细胞凋亡

被引:17
作者
钟国华
水克娟
黄劲飞
贾建文
胡美英
机构
[1] 华南农业大学昆虫毒理研究室
关键词
细胞凋亡; 植物源物质; 凋亡小体; 印楝素; 喜树碱; 斜纹夜蛾细胞系SL-1;
D O I
10.16380/j.kcxb.2008.04.013
中图分类号
S482.3 [杀虫剂];
学科分类号
090403 ;
摘要
为了研究植物源物质对斜纹夜蛾Spodoptera litura离体培养细胞系SL-1的凋亡诱导作用,采用倒置相差显微镜观察了印楝素、喜树碱等9种物质各自对SL-1凋亡小体的浓度效应及时序性。结果表明:印楝素0.1~5.0μg/mL和喜树碱0.5~20.0μmol/L处理SL-1,24~48h后均产生大量典型的凋亡小体;茶皂素、蓖麻碱、黄樟油、丹皮酚、烟碱、苦参碱和博落回碱0.1~20.0μg/mL处理SL-1后,整个观察期72h内均无明显凋亡小体出现,凋亡诱导作用不明显。印楝素0.75μg/mL诱导SL-1细胞凋亡,从凋亡小体判断,处理后0~36h属细胞凋亡早期,36~60h属细胞凋亡中期,60h后为细胞凋亡晚期。喜树碱5.0μmol/L诱导SL-1细胞凋亡,处理后0~24h属细胞凋亡前期,24~54h属细胞凋亡中期,54h后进入细胞凋亡晚期。初步认为印楝素和喜树碱对SL-1有凋亡诱导作用,并具有一定的浓度依赖性和时序性。
引用
收藏
页码:449 / 453
页数:5
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