Abstract
The Planococcus sp. PAMC21323 is a yellow pigment-producing bacterium isolated from King George Island in Antarctica; it has a broad growth temperature range of 5–40 °C. Herein, we describe the complete genome sequence information of the genus Planococcus with its annotated sequence, genetic features for bioremediation, and oxidative stress capacity. The Planococcus sp. PAMC21323 possesses chromosomal DNA (3,196,500-bp) with plasmid DNA (3364-bp). The complete 3,199,864-bp of the genome consists of 3171 genes including 60 transfer RNAs and 24 ribosomal RNAs. Strain PAMC21323 encodes various genes associated with detoxification of heavy metal ions and aromatic hydrocarbons. Moreover, it is equipped with diverse stress response systems, which can be used to sense the internal and oxidative stresses caused by detoxification. This is the first report highlighting the genetic potential of Planococcus sp. PAMC21323 in bioremediation, suggesting application of this psychrotrophic strain in bioremediation in harsh environments.
Highlights
Increasing environmental pollution caused by industrial and other anthropogenic activities has become a major threat to the survival of living organisms
Planococcus spp. are gram-positive (+) bacteria in the family of Planococcaceae (Bacillales, Firmicutes). This genus had previously been categorized as Micrococci, but the motile cocci in the genus Micrococcus was reclassified as the genus Planococcus by Migula in 1894, and its chemosystematic properties were demonstrated by Kocur et al [8]
Stress response system of Planococcus Bacteria subjected to bioremediation go through oxidative stress and exhibit high stress resistance because toxic pollutants are metabolized via oxygenase-type enzymes on the catabolic pathway [2]
Summary
Increasing environmental pollution caused by industrial and other anthropogenic activities has become a major threat to the survival of living organisms. It has been reported that diverse bacteria isolated in Antarctica are resistant to multiple metal ions [6] and can degrade hydrocarbons [7]. Some Planococcus spp. exhibit heavy-metal resistance and are capable of degrading linear alkanes or aromatic hydrocarbons [12, 13]. There have been no reports of the genome features associated with bioremediation pathways, even though 10 genomes of Planococcus spp. have been sequenced to date.
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