通过 Cetyltrimethylammonium Bromide 技术从 Mycobacterium 种类中提取全基因组脱氧核酸
1DST/NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council (SAMRC), Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University; shatha@sun.ac.za.
Journal of visualized experiments : JoVE
|December 29, 2025
概括
该 cetyltrimethylammonium化物 (CTAB) 方法有效地从具有挑战性的真菌细菌物种中提取高质量的DNA. 该协议克服了独特的细胞壁障碍,产生适合分子生物学应用的纯DNA.
科学领域:
- 分子生物学分子生物学
- 微生物学 微生物学
背景情况:
- 菌根细菌的DNA提取受到脂质丰富的细胞壁的阻碍.
- 有效的DNA隔离对于下游分子分析至关重要.
研究的目的:
- 为了证明CTAB方法对菌根细菌DNA提取的有效性.
- 为了突出CTAB协议克服细胞壁挑战的能力.
主要方法:
- 使用酶和蛋白酶K的酶性细胞破坏.
- 使用 cetyltrimethylammonium bromide (CTAB) 的细胞溶解和组件结合.
- 通过有机溶剂提取和乙醇沉来净化DNA.
主要成果:
- 通过CTAB方法可以获得很高的DNA量 (200-1000 ng/μL).
- 提取的DNA具有高纯度,污染最小,经过凝电泳和NanoDrop证实.
- 该方案对快速生长和缓慢生长的真菌菌株都有效.
结论:
- CTAB方法是用于分离菌根细菌DNA的强大可靠技术.
- 该协议提供了高质量的DNA,适用于各种分子研究.
- 该CTAB方法有效地解决了菌根菌细胞壁组成的复杂性.
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