Exploring the genome of Arctic Psychrobacter sp. DAB_AL32B and construction of novel Psychrobacter-specific cloning vectors of an increased carrying capacity

• Published in: Archives of Microbiology
• Main Authors: Ciok, Anna, Dziewit, Lukasz
• Format: Text
• Language: English
• Published: Springer Berlin Heidelberg 2018
• Subjects: Original Paper; Arctic
• Online Access: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6579772/; http://www.ncbi.nlm.nih.gov/pubmed/30448872; https://doi.org/10.1007/s00203-018-1595-y

Cold-active bacteria are currently of great interest in biotechnology, and their genomic and physiological features have been extensively studied. One of the model psychrotolerant bacteria are Psychrobacter spp. Analysis of Arctic psychrophilic Psychrobacter sp. DAB_AL32B genome content provided an insight into its overall stress response, and genes conferring protection against various life-limiting factors (i.e., low temperature, increased ultraviolet radiation, oxidative stress and osmotic pressure) were recognized and described. Moreover, it was revealed that the strain carries a large plasmid pP32BP2. Its replication system was used for the construction of two novel shuttle vectors (pPS-NR—Psychrobacter-Escherichia coli-specific plasmid and pPS-BR—Psychrobacter-various Proteobacteria-specific plasmid) of an increased carrying capacity, which may be used for genetic engineering of Psychrobacter spp. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00203-018-1595-y) contains supplementary material, which is available to authorized users.