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谜雾xiaoxiao

木虫 (小有名气)

环境微生物苦逼研究生

[求助] 如何提高手提土壤DNA的纯度 已有2人参与

我做的样品是是湿地土壤,提取DNA后,纯度(260/280)在1.3-1.6之间,浓度很高,想要求助一种能够提高DNA纯度的方法,或者好的提取方法,希望可以把纯度提高到1.8-2.0,求指教!
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谜雾xiaoxiao

木虫 (小有名气)

环境微生物苦逼研究生

引用回帖:
2楼: Originally posted by 反应链 at 2016-01-05 21:31:38
You could try this protocol, which is very useful for plant total DNA extraction.

I hope you could improve the CTAB method for Soil microorganism total DNA extraction by drawing lessons from this  ...

Thank you ,i will give it a try
4楼2016-01-06 14:50:51
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反应链

新虫 (正式写手)

You could try this protocol, which is very useful for plant total DNA extraction.

I hope you could improve the CTAB method for Soil microorganism total DNA extraction by drawing lessons from this protocol.

3% CTAB DNA extracion protocol
(modified from Zeng et al. 2002, ACta Botanica Sinica 44; 694-697)

1. washing out polysaccharides with CTAB-free buffer from homogenate.
2. increasing the percentage of CTAB in extraction medium.
3. using high concentration salts pior to DNA precipitation with isopanol.

如何提高手提土壤DNA的纯度
2楼2016-01-05 21:31:38
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xiaoqiao_mao

银虫 (初入文坛)

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谜雾xiaoxiao: 金币+10, ★有帮助 2016-01-06 14:51:48
MP FastDNA for soil 试剂盒,我们实验室一直用这个,效果很好,也提过湿地的DNA。你可以试一下。
3楼2016-01-06 14:36:27
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谜雾xiaoxiao

木虫 (小有名气)

环境微生物苦逼研究生

引用回帖:
3楼: Originally posted by xiaoqiao_mao at 2016-01-06 14:36:27
MP FastDNA for soil 试剂盒,我们实验室一直用这个,效果很好,也提过湿地的DNA。你可以试一下。

试剂盒我们也用,但是这一次的样品较多,希望可以找到一个手提的方法
5楼2016-01-06 14:51:22
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