Suchergebnisse

The application of tandem MALDI-TOF MS screening with 16S rRNA gene sequencing of selected isolates has been demonstrated to be an excellent approach for retrieving novelty from large-scale culturing. The application of such methodologies in different hypersaline samples allowed the isolation of the culture-recalcitrant Salinibacter ruber second phylotype (EHB-2) for the first time, as well as a new species recently isolated from the Argentinian Altiplano hypersaline lakes. In this study, the genome sequences of the different species of the phylum Rhodothermaeota were compared and the genetic repertoire along the evolutionary gradient was analyzed together with each intraspecific variability. Altogether, the results indicated an open pan-genome for the family Salinibacteraceae, as well as the codification of relevant traits such as diverse rhodopsin genes, CRISPR-Cas systems and spacers, and one T6SS secretion system that could give ecological advantages to an EHB-2 isolate. For the new Salinibacter species, we propose the name Salinibacter altiplanensis sp. nov. (the designated type strain is AN15T = CECT 9105T = IBRC-M 11031T). ; This study was funded by the Spanish Ministry of Economy projects CGL2012-39627-C03-03 and CLG2015-66686-C3-1-P (to RRM), CLG2015-66686-C3-3-P (to JA), which were also both supported with European Regional Development Fund (FEDER) funds. RA was financed by the Max Planck Society. KTK's research was supported, in part, by the U.S. National Science Foundation (Award No. 1241046). TVP acknowledges a pre-doctoral fellowship (Nr BES-2013-064420) from the Ministerio de Economía y Competitividad of the Spanish Government. The authors also acknowledge the economic support and unconditional scientific interest of Lipotrue SL and Deep Blue Sea SL.