Extraction of mRNA from Soil

被引:88
作者
Mettel, Carsten [1 ]
Kim, Yongkyu [1 ]
Shrestha, Pravin Malla [1 ]
Liesack, Werner [1 ]
机构
[1] Max Planck Inst Terr Mikrobiol, D-35043 Marburg, Germany
关键词
POLYMERASE CHAIN-REACTION; 16S RIBOSOMAL-RNA; GENE-EXPRESSION; ATMOSPHERIC METHANE; HUMIC SUBSTANCES; RAPID METHOD; DNA; COMMUNITY; SEDIMENTS; PROTOCOL;
D O I
10.1128/AEM.03047-09
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Here, we report an efficient method for extracting high-quality mRNA from soil. Key steps in the isolation of total RNA were low-pH extraction (pH 5.0) and Q-Sepharose chromatography. The removal efficiency of humic acids was 94 to 98% for all soils tested. To enrich mRNA, subtractive hybridization of rRNA was most efficient. Subtractive hybridization may be followed by exonuclease treatment if the focus is on the analysis of unprocessed mRNA. The total extraction method can be completed within 8 h, resulting in enriched mRNA ranging from 200 bp to 4 kb in size.
引用
收藏
页码:5995 / 6000
页数:6
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