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Genomic insights revealed physiological diversity and industrial potential for Glaciimonas sp. PCH181 isolated from Satrundi glacier in Pangi-Chamba Himalaya

Kumar, Vijay, Thakur, Vikas, Ambika,, Kumar, Virender, Kumar, Rakshak, Singh, Dharam
Genomics 2019
bacteria, biosynthesis, carbon dioxide, carbon dioxide fixation, cold, cold stress, genes, genomics, glaciers, hydrogen, niches, organic acids and salts, phenol, polyhydroxyalkanoates, sequence analysis, sugars, Himalayan region
Himalayan niches provide unprecedented opportunities for finding novel microbes of commercial importance. The present study investigated the genome sequence of Glaciimonas sp. PCH181 isolated from the glacial stream of Indian trans-Himalaya. The draft genome sequence has six contigs with 5.3 Mb size, 51.1% G + C content, and possesses 4876 genes. Phylogenomic analysis revealed PCH181 as a putative novel bacterium in the genus Glaciimonas. Genomic insight showed Glaciimonas sp. PCH181 enriched with genes for diverse physiology, cold/stress adaptation, and industrial potential. The presence of genes for CO2 fixation and hydrogen metabolism suggested for chemolithoautotrophy. However, genes for sugars and organic acids usage showed heterotrophy and validated by physiological experiments. Genes for the metabolism of phenol (up to 500 ppm) and biosynthesis of polyhydroxyalkanoate (25% of dry cell mass) were also verified. Collectively, we present the first whole genome sequencing in the genus Glaciimonas, a taxonomically, physiologically, and industrially noteworthy bacterium.