Complete genome sequence of Erythrobacter seohaensis SW-135T sheds light on the ecological role of the genus Erythrobacter for phosphorus cycle in the marine environment

Lin Xu; Yue-Hong Wu; Hong Cheng; Cong Sun; Bing-Nan Han; Xue-Wei Xu

doi:10.1016/j.margen.2018.03.001

Complete genome sequence of Erythrobacter seohaensis SW-135^T sheds light on the ecological role of the genus Erythrobacter for phosphorus cycle in the marine environment

Mar Genomics. 2018 Jul:40:21-24. doi: 10.1016/j.margen.2018.03.001. Epub 2018 Mar 24.

Authors

Lin Xu¹, Yue-Hong Wu², Hong Cheng², Cong Sun¹, Bing-Nan Han¹, Xue-Wei Xu³

Affiliations

¹ College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
² Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China.
³ Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China. Electronic address: xuxw@sio.org.cn.

PMID: 32420878
DOI: 10.1016/j.margen.2018.03.001

Abstract

Erythrobacter seohaensis SW-135^T was isolated from inter sediments collected from an intertidal zone of the Yellow Sea in Korea. The genome of E. seohaensis SW-135^T was sequenced and comprised of one circular chromosome with the size of 2,942,673 bp and DNA G + C content of 61.7%. It was reported that E. seohaensis SW-135^T was positive for alkaline phosphatase activity by enzymatic test. Genomic annotation indicated that the genome of E. seohaensis SW-135^T had two alkaline phosphatase-encoding genes, phoD and phoX, which products can dephosphorylate phosphoesters to more bioavailable dissolved inorganic phosphorus for microorganisms in the phosphorus limited condition. Comparative genomic analysis of marine Erythrobacter strains revealed that phoD and phoX were widely distributed in these strains, indicating the genus Erythrobacter may play an important role in the marine phosphorus cycle. This study broadens our understandings about ecological roles of the genus Erythrobacter participating in the marine phosphorus cycle, which is rarely investigated previously.

Keywords: Alkaline phosphatase; Erythrobacter; Marine environment; Phosphorus cycle; phoD; phoX.