JOURNAL ARTICLE

柑橘溃疡病菌环介导等温扩增快速检测技术研究

Abstract

环介导等温扩增(loop-mediated isothermal amplification,LAMP)快速检测已用于基层植物检验检疫中的疑似样品检测诊断。柑橘溃疡病菌(Xanthomonas citri subsp.citri)是重要的检疫性病害,根据柑橘溃疡病菌基因组中一段保守序列设计LAMP引物,建立了柑橘溃疡病菌的LAMP检测方法。该LAMP检测方法只对柑橘溃疡病菌DNA和柑橘溃疡病病斑总DNA进行扩增,而对非靶标菌DNA和非靶标病斑总DNA不发生扩增,特异性与PCR一致。该LAMP检测方法最低可检出100 pg的纯柑橘溃疡病菌DNA和最低每微升4个细菌,灵敏度均比PCR高了1 250倍。LAMP检测法能很好地区分症状极易混淆的柑橘溃疡病和疮痂病。该试验建立的柑橘溃疡病菌LAMP检测方法具有简单、快速、灵敏和特异等优点,可在条件相对简陋的实验室应用。

Keywords:
Work (physics) Process (computing) Term (time)

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Topics

Biosensors and Analytical Detection
Physical Sciences →  Engineering →  Biomedical Engineering
Plant Pathogenic Bacteria Studies
Life Sciences →  Agricultural and Biological Sciences →  Plant Science
Phytoplasmas and Hemiptera pathogens
Life Sciences →  Agricultural and Biological Sciences →  Plant Science

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