| Title | Marine Bacteria Associated with the Korean Brown Alga, Undaria pinnatifida |
|---|---|
| Author | Yoo Kyung Lee1*, Hyun Jung Jung1,2, and Hong Kum Lee1 |
| Address | 1Polar BioCenter, Korea Polar Research Institute, KORDI, Songdo Techno Park Songdo-dong 7-50, Yeonsu-gu, Incheon 406-840, Republic of Korea, 2Division of Biology and Ocean Sciences, Inha University, Incheon 402-751, Korea |
| Bibliography | Journal of Microbiology, 44(6),694-698, 2006, |
| DOI | |
| Key Words | Bacillus, marine bacteria, Psychrobacter, Psychromonas, psychrotrophic bacteria, Undaria pinnatifida |
| Abstract | Several marine bacterial strains were isolated from Undaria pinnatifida (Miyok in Korean). Sixty-six strains were isolated on R2A agar media at 10°C and identified by a phylogenetic analysis of the 16S rRNA gene sequences. They were grouped into 10 different sequence types based on the initial sequence analysis of the 5'''' domain of the gene (approximately 500 bp). Full sequences of 16S rRNA gene were obtained from one strain in each sequence type and the species-affiliation was determined using phylogenetic and sequence similarity analyses. The results of the analyses indicated that they were closely related to Psychrobacter aquimaris, P. celer, P. nivimaris, P. pulmonis, Psychromonas arctica or Bacillus psychrodurans.These bacteria are marine or psychrotrophic bacteria. Because the sporophytes of U.pinnatifida are cultured on the costal area during winter, the U. pinnatifida-associated bacteria appeared to grow at low temperatures. U. pinnatifida sporophytes can be a good source for the isolation of psychrotrophic bacteria. |
| Download PDF | JM44(6)-18.pdf |