Journal
BIOTECHNOLOGY JOURNAL
Volume 5, Issue 2, Pages 183-186Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/biot.200900211
Keywords
Arabidopsis; RNA extraction; Seeds; Siliques; TRIzol
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Extraction of high-quality RNA from Arabidopsis seeds has been a challenge. Here we report a two-step TRIzol-based procedure for RNA extraction from Arobidopsis siliques and dry seeds. This procedure employs a modified, high pH (PH 9.5) extraction buffer. High PH plus the addition of either DTT or beta-mercaptoethanol in the extraction buffer effectively inhibits RNase activity during the extraction, and removes most polysaccharides, polyphenols and other insoluble material. TRIzol reagent was subsequently used to purify the RNA. Using this procedure we isolated high-quality DNA-free RNA samples without DNase I treatment from Arabidopsis seeds or siliques in less than 3 h.
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