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Sensors 2012, 12(11), 14307-14314; doi:10.3390/s121114307

Long Chain N-acyl Homoserine Lactone Production by Enterobacter sp. Isolated from Human Tongue Surfaces

1
Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
2
Department of General Dental Practice and Oral and Maxillofacial Imaging, Faculty of Dentistry, Universiti Sains Malaysia, 50603 Kuala Lumpur, Malaysia
*
Author to whom correspondence should be addressed.
Received: 1 September 2012 / Revised: 28 September 2012 / Accepted: 10 October 2012 / Published: 24 October 2012
(This article belongs to the Section Biosensors)
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Abstract

We report the isolation of N-acyl homoserine lactone-producing Enterobacter sp. isolate T1-1 from the posterior dorsal surfaces of the tongue of a healthy individual. Spent supernatants extract from Enterobacter sp. isolate T1-1 activated the biosensor Agrobacterium tumefaciens NTL4(pZLR4), suggesting production of long chain AHLs by these isolates. High resolution mass spectrometry analysis of these extracts confirmed that Enterobacter sp. isolate T1-1 produced a long chain N-acyl homoserine lactone, namely N-dodecanoyl-homoserine lactone (C12-HSL). To the best of our knowledge, this is the first isolation of Enterobacter sp., strain T1-1 from the posterior dorsal surface of the human tongue and N-acyl homoserine lactones production by this bacterium.
Keywords: N-acylhomoserine lactone; N-dodecanoyl-L-homoserine lactone (C12-HSL); oral cavity; posterior dorsal surface; quorum sensing; tongue N-acylhomoserine lactone; N-dodecanoyl-L-homoserine lactone (C12-HSL); oral cavity; posterior dorsal surface; quorum sensing; tongue
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Yin, W.-F.; Purmal, K.; Chin, S.; Chan, X.-Y.; Chan, K.-G. Long Chain N-acyl Homoserine Lactone Production by Enterobacter sp. Isolated from Human Tongue Surfaces. Sensors 2012, 12, 14307-14314.

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