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环介导等温扩增法快速检测耐甲氧西林金黄色葡萄球菌

朱丽 霍贵成

食品科学2011,Vol.32Issue(16):213-218,6.
食品科学2011,Vol.32Issue(16):213-218,6.

环介导等温扩增法快速检测耐甲氧西林金黄色葡萄球菌

Rapid Detection of Methicillin-resistant Staphylococcus aureus by Loop-mediated Isothermal Amplification

朱丽 1霍贵成1

作者信息

  • 1. 东北农业大学乳品科学教育部重点实验室,黑龙江哈尔滨150030
  • 折叠

摘要

Abstract

A rapid assay was developed for the detection of mecA and spa gene present in methicillin-resistant Staphylococcus aureus(MRSA) using loop-mediated isothermal amplification(LAMP).Staphylococcus aureus and other relevant bacteria were detected for their mecA and spa genes by both polymerase chain reaction(PCR) and LAMP methods.Gene amplification was successfully achieved by LAMP within 60 min when the temperature was held at 64 ℃,and the results were consistent results with those of the conventional PCR methods.The limits of detection of the LAMP method for mecA and spa genes were identified by agarose gel electrophoresis to be 102 and 10 cells per tube and observed by naked eyes to be 103 and 10 cells per tube respectively.The LAMP method was then applied to artificially polluted raw milk,and gave identical results with the traditional PCR methods.LAMP can rapidly detect mecA and spa genes,thus providing an applicable assay for detecting MRSA in raw milk.

关键词

环介导等温扩增(LAMP)/mecA基因/耐甲氧西林金黄色葡萄球菌(MRSA)/肉眼检测/spa基因

Key words

loop-mediated isothermal amplification(LAMP)/mecA gene/methicillin-resistant Staphylococcus aureus(MRSA)/naked-eye observation/spa gene

分类

轻工纺织

引用本文复制引用

朱丽,霍贵成..环介导等温扩增法快速检测耐甲氧西林金黄色葡萄球菌[J].食品科学,2011,32(16):213-218,6.

基金项目

“十一五”国家科技支撑计划项目 ()

食品科学

OA北大核心CSCDCSTPCD

1002-6630

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