Complete genome sequence of the thermophilic bacterium Geobacillus subterraneus KCTC 3922T as a potential denitrifier

Yong Jik Lee, Min Kyu Park, Gun Seok Park, Sang Jae Lee, Sang Jun Lee, Bradley Seokhan Kim, Jae Ho Shin, Dong Woo Lee

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Denitrification is a crucial process for the global nitrogen cycle through the reduction of nitrates by heterotrophic bacteria. Denitrifying microorganisms play an important role in eliminating fixed nitrogen pollutants from the ecosystem, concomitant with N2O emission. Although many microbial denitrifiers have been identified, little is known about the denitrifying ability of the genus Geobacillus. Here, we report the first complete genome sequences of Geobacillus subterraneus KCTC 3922T, isolated from Liaohe oil field in China, and G. thermodenitrificans KCTC 3902T. The strain KCTC 3922T contains a complete set of genes involved in denitrification, cofactor biogenesis, and transport systems, which is consistent with a denitrifying activity. On the other hand, G. thermodenitrificans KCTC 3902T exhibited no denitrifying activity probably due to the lack of molybdnumtransferase (moeA) and nitrite transporter (nirC) genes. Therefore, comparative genome analysis of Geobacillus strains highlights the potential impact on treatment of nitrate-contaminated environments.

Original languageEnglish
Pages (from-to)141-144
Number of pages4
JournalJournal of Biotechnology
Publication statusPublished - 2017 Jun 10

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology


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