| Title: | Identification of volatiles from six marine Celeribacter strains |
| Author(s): | Chhalodia AK; Rinkel J; Konvalinkova D; Petersen J; Dickschat JS; |
| Address: | "Kekule Institute of Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany. Leibniz-Institut DSMZ - Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Inhoffenstrasse 7b, 38124 Braunschweig, Germany" |
| ISSN/ISBN: | 1860-5397 (Print) 1860-5397 (Electronic) 1860-5397 (Linking) |
| Abstract: | "The volatiles emitted from six marine Rhodobacteraceae species of the genus Celeribacter were investigated by GC-MS. Besides several known compounds including dimethyl trisulfide and S-methyl methanethiosulfonate, the sulfur-containing compounds ethyl (E)-3-(methylsulfanyl)acrylate and 2-(methyldisulfanyl)benzothiazole were identified and their structures were verified by synthesis. Feeding experiments with [methyl-(2)H(3)]methionine, [methyl-(13)C]methionine and [(34)S]-3-(dimethylsulfonio)propanoate (DMSP) resulted in the high incorporation into dimethyl trisulfide and S-methyl methanethiosulfonate, and revealed the origin of the methylsulfanyl group of 2-(methyldisulfanyl)benzothiazole from methionine or DMSP, while the biosynthetic origin of the benzothiazol-2-ylsulfanyl portion could not be traced. The heterocyclic moiety of this compound is likely of anthropogenic origin, because 2-mercaptobenzothiazole is used in the sulfur vulcanization of rubber. Also in none of the feeding experiments incorporation into ethyl (E)-3-(methylsulfanyl)acrylate could be observed, questioning its bacterial origin. Our results demonstrate that the Celeribacter strains are capable of methionine and DMSP degradation to widespread sulfur volatiles, but the analysis of trace compounds in natural samples must be taken with care" |
| Keywords: | Gc-ms Roseobacter isotopes sulfur metabolism volatiles; |
| Notes: | "PubMed-not-MEDLINEChhalodia, Anuj Kumar Rinkel, Jan Konvalinkova, Dorota Petersen, Jorn Dickschat, Jeroen S eng Germany 2021/02/27 Beilstein J Org Chem. 2021 Feb 11; 17:420-430. doi: 10.3762/bjoc.17.38. eCollection 2021" |
