%0 Journal Article %T Long Chain N-acyl Homoserine Lactone Production by Enterobacter sp. Isolated from Human Tongue Surfaces %A Wai-Fong Yin %A Kathiravan Purmal %A Shenyang Chin %A Xin-Yue Chan %A Kok-Gan Chan %J Sensors %D 2012 %I MDPI AG %R 10.3390/s121114307 %X 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. %K N-acylhomoserine lactone %K N-dodecanoyl-L-homoserine lactone (C12-HSL) %K oral cavity %K posterior dorsal surface %K quorum sensing %K tongue %U http://www.mdpi.com/1424-8220/12/11/14307