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从生菜叶中分离出的成团泛菌的群体感应活性。

Quorum sensing activity of Enterobacter asburiae isolated from lettuce leaves.

机构信息

Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.

出版信息

Sensors (Basel). 2013 Oct 22;13(10):14189-99. doi: 10.3390/s131014189.

DOI:10.3390/s131014189
PMID:24152877
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3859116/
Abstract

Bacterial communication or quorum sensing (QS) is achieved via sensing of QS signaling molecules consisting of oligopeptides in Gram-positive bacteria and N-acyl homoserine lactones (AHL) in most Gram-negative bacteria. In this study, Enterobacteriaceae isolates from Batavia lettuce were screened for AHL production. Enterobacter asburiae, identified by matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF-MS) was found to produce short chain AHLs. High resolution triple quadrupole liquid chromatography mass spectrometry (LC/MS) analysis of the E. asburiae spent supernatant confirmed the production of N-butanoyl homoserine lactone (C4-HSL) and N-hexanoyl homoserine lactone (C6-HSL). To the best of our knowledge, this is the first report of AHL production by E. asburiae.

摘要

细菌通过感知由革兰氏阳性菌中的寡肽和大多数革兰氏阴性菌中的 N-酰基高丝氨酸内酯 (AHL) 组成的 QS 信号分子进行通讯或群体感应 (QS)。在这项研究中，从巴特维亚生菜中筛选出产 AHL 的肠杆菌科分离株。通过基质辅助激光解吸电离飞行时间质谱 (MALDI-TOF-MS) 鉴定的阿氏肠杆菌被发现产生短链 AHL。对阿氏肠杆菌耗尽上清液的高分辨三重四极杆液相色谱质谱 (LC/MS) 分析证实了 N-丁酰基高丝氨酸内酯 (C4-HSL) 和 N-己酰基高丝氨酸内酯 (C6-HSL) 的产生。据我们所知，这是首次报道阿氏肠杆菌产生 AHL。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/76448b5796a1/sensors-13-14189f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/3ada5c14fb8c/sensors-13-14189f1a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/b650025a772b/sensors-13-14189f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/ea7caf43bf8e/sensors-13-14189f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/76448b5796a1/sensors-13-14189f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/3ada5c14fb8c/sensors-13-14189f1a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/b650025a772b/sensors-13-14189f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/ea7caf43bf8e/sensors-13-14189f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/24a8/3859116/76448b5796a1/sensors-13-14189f4.jpg

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