SAMN06133458 Polaribacter sejongensis KCTC 23670 Microbe sample from Polaribacter sejongensis Polaribacter sejongensis Atmosphere and Ocean Research Institute, The University of Tokyo Yohei Kumagai Microbe, viral or environmental Microbe.1.0 KCTC 23670 soil missing Antarctica culture KCTC:23670 type strain of Polaribacter sejongensis