VOC emission of variousSerratiaspecies and isolates and genome analysis ofSerratia plymuthica4Rx13

Abstract

Bacteria emit a wealth of volatile organic compounds. Gas chromatography coupled to mass spectrometry analysis of five Serratia strains revealed ketones, dimethyl di- and trisulfide and 2-phenylethanol commonly released in this genus. The polymethylated bicyclic hydrocarbon sodorifen was uniquely released by the rhizobacterium Serratia plymuthica 4Rx13. Of 10 Serratia strains, only S. plymuthica isolates originating from plants grown on fields near Rostock (Germany) released this new and unusual compound. Since the biosynthetic pathway of sodorifen was unknown, the genome sequence of S. plymuthica 4Rx13 was determined and annotated. Genome comparison of S. plymuthica 4Rx13 with sodorifen non-producing Serratia species highlighted 246 unique candidate open reading frames.

Chemical diversity of microbial volatiles and their potential for plant growth and productivity

“…As well as commonly known bacterial VOCs such as 2-pentanone, 4-heptanone, 2-heptanol, 2-undecanone, 2-tridecanone, and 2-pentadecanone (Schulz and Dickschat, 2007; Weise et al, 2014), well known compounds like sodorifen, a bicyclic oligomethyl octadiene produced by Serratia odorifera (Kai et al, 2010), are able to interfere with plants ( Figure 2 ).…”

Genome Sequence of the Oocydin A-Producing Rhizobacterium Serratia plymuthica 4Rx5

“…Scrutiny of the genome also revealed the presence of a biosynthetic cluster responsible for production of the antifungal metabolite pyrrolnitrin (12). Genome comparison analyses showed that the genome of 4Rx5 is highly similar to that of Serratia plymuthica 4Rx13 (13). The strain 4Rx13 produces a broad range of volatile organic compounds (VOCs) (13–15), some of them possessing antifungal properties (14).…”

“…Genome comparison analyses showed that the genome of 4Rx5 is highly similar to that of Serratia plymuthica 4Rx13 (13). The strain 4Rx13 produces a broad range of volatile organic compounds (VOCs) (13–15), some of them possessing antifungal properties (14). The bicyclic terpene sodorifen was the major VOC emitted by 4Rx13 (15), and the sodorifen gene cluster was identified in the genome of 4Rx5.…”

RIZOBACTERIAS NATIVAS EN JAMAICA ANTAGONISTAS A Phytophthora parasitica Dastur: AISLAMIENTO Y CARACTERIZACIÓN

“…Estos resultados coinciden con los obtenidos por Queiroz y De Melo (2006), quienes reportaron que S. marcescens posee el mayor grado de antagonismo in vitro al inhibir el crecimiento micelial de P. parasitica; además tiene la capacidad de reducir en 50 % la infección de este patógeno, inducir el crecimiento de las plantas y suprimir a P. parasitica en condiciones de campo en plántulas de cítricos. S. plymuthica, es otra especie con potencial para uso en biocontrol (Weise et al, 2014).…”