川贝母鳞茎总RNA提取方法的研究
Pharmaceutical Biotechnology（2011）
Abstract
以暗紫贝母(Fritillaria unibracteata Kisao et K C.Hisa)新鲜鳞茎为试材,选取3种有效提取富含油脂、多糖和酚类植物材料总RNA的方法,比较提取总RNA的效果.结果表明,改良SDS酸酚法能有效去除大部分多糖和DNA,RNA条带清晰、亮度好,28S rRNA的亮度约为18S rRNA的2倍,A260nm/A280nm为1.85,A260nm/A230nm为2.06,得率为73μg/g.提取的总RNA经RT-PCR获得了3-羟基-3-甲基戊二酰辅酶A还原酶(3-hydroxy-3-methylglutaryl-CoA reductase,HMGR)基因的特异性条带,说明改良SDS酸酚法从川贝母中提取的RNA质量好、产率高、完整性强,完全适合于进一步的分子生物学研究.
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Key words
Fritillaria unibracteata,Lipin,Modified SDS acid phenol,Polysaccharide compounds,RNA
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