Serinicoccus kebangsaanensis sp. nov: A new bacterium isolated from the toxic diatom , Nitzschia navis-varingica

Aqilah Yusof; Fathul Karim Sahrani; Asmat Ahmad; Gires Usup; Hamidun Bunawan

doi:10.1016/j.nmni.2022.101005

Serinicoccus kebangsaanensis sp. nov: A new bacterium isolated from the toxic diatom , Nitzschia navis-varingica

New Microbes New Infect. 2022 Jul 13:48:101005. doi: 10.1016/j.nmni.2022.101005. eCollection 2022 Jul.

Authors

Aqilah Yusof¹, Fathul Karim Sahrani², Asmat Ahmad¹, Gires Usup², Hamidun Bunawan³

Affiliations

¹ Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor, Malaysia.
² School of Environmental and Natural Resources Science, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor, Malaysia.
³ Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor, Malaysia.

Abstract

Serinicoccus kebangsaanensis sp. nov strain P2D13-UKM is a new species of Gram-positive bacteria isolated from a toxic diatom, Nitzschia navis-varingica. It is a halophilic aerobic, oxidase-negative, catalase-positive, circular, and colonies with white colour. Based on the 16S rRNA gene, the closest species were Serinicoccus profundi MCCC 1A05965 strain 0714S6-1, 97.41%, and Serinicoccus hydrothermalis strain JLT9, 97.35%. This bacteria's predominant cellular fatty acids were iso-C15: 0 (30.1 %) and iso-C16: 0 (16.2 %). The polar lipids identified in this bacterium were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol, and an unknown glycolipid. The whole-genome sequence analysis of strain P2D13-UKM showed less than 85% similarity from other Serinicoccus species. The genomic DNA G + C content is 72.2 %. Here, we report the main characteristic of strain P2D13-UKM as a new species of bacteria according to its draft genome sequence, which was deposited in Gene Bank and is publicly available under the accession number VSLG00000000.

Keywords: Diatom; Nitzschia navis-varingica; phytoplankton; serinicoccus.