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在家禽样本中通过快速异热法检测Enteritidis和海德堡血清型特异性的Salmonella enterica分子检测

C F D S Andrade¹, M N Souza¹, I I D S Dantas¹

¹Molecular Diagnostics Laboratory, Lutheran University of Brazil (ULBRA), Canoas, Brazil.

British poultry science

|November 11, 2024

概括

新的循环介导异热放大 (LAMP) 试验可以快速检测家禽中的沙门氏菌和海德堡沙门氏菌. 这些方法为资源有限的环境提供了可行的监控工具.

科学领域:

微生物学微生物学
分子生物学分子生物学
兽医科学兽医科学兽医科学

背景情况:

沙门氏菌 (Salmonella Enteritidis) 和海德堡氏菌 (Salmonella Heidelberg) 是家禽中的重要病原体.
准确和快速的检测方法对于控制家禽养殖场的沙门氏菌疫情至关重要.
现有的PCR方法需要特定的设备和专业知识,限制其在资源有限的环境中使用.

研究的目的:

开发和评估循环介导同热放大 (LAMP) 试验,用于特定血清型检测沙门氏菌和海德堡沙门氏菌.
为了比较LAMP测定与传统PCR方法的性能.
评估LAMP测定对家禽养殖场监测的适用性.

主要方法:

开发两种特定于血清型的LAMP测定,针对沙门氏菌Enteritidis的"saf'A基因"和沙门氏菌海德堡的"ACF69659"基因.
使用沙门氏菌血清型和其他细菌物种的培养收集进行LAMP测定的评估.
应用LAMP测定对家禽养殖场样本在缓冲水中单步预丰富后.
将LAMP结果与已建立的PCR方法进行比较.

主要成果:

LAMP测定显示出高特异性,准确地放大了所有测试的沙门氏菌 (n=10) 和沙门氏菌海德堡 (n=36) 隔离物中的目标.
没有观察到与其他沙门氏菌血清型 (n=84) 或细菌物种 (n=8) 的交叉反应.
开发的LAMP方法在预富后在家禽样本中成功检测出沙门氏菌和海德堡沙门氏菌,显示与PCR结果一致.

结论:

循环介导的异热放大测定为检测沙门氏菌和海德堡沙门氏菌提供了快速和血清型特定的方法.
这些LAMP测试具有高度的特异性和灵敏性,性能与PCR相比.
LAMP的简单性和效率使其成为在资源有限的环境中,如家禽养殖场,进行沙门氏菌监测的理想工具.

关键词:

一个灯的灯光.这是一个PCRPCR.沙门氏菌是一种沙门氏菌.这些都是肉肉.血清型类型血清型类型

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