| Title | The Bacterial Community of Southern Lake Baikal in Winter |
|---|---|
| Author | Ahn, Tae Seok * · Hong, Sun Hee · Kim, Dong Joo · Suck, Jung Hyun · Drucker, Valentin V.¹ |
| Address | Department of Environmental Science, Kangwon National University; ¹Limnological Institute Russian Academy of Science Siberian Branch |
| Bibliography | Journal of Microbiology, 37(1),10-13, 1999, |
| DOI | |
| Key Words | Lake Baikal, bacterial abundance, respiring bacteria, probe community |
| Abstract | The bacterial abundance, proportion of respiring bacteria, and bacterial community of southern Lake Baikal were analyzed at 1 m and 400m depths during winter. The total bacterial numbers were 5.1×10^5 cells m^l-1 at 1 m and 2.5×10^5 cells ml^-1 at 400 m depth, which are about half and quarter of the numbers of other lakes. The proportion of respiring bacteria was as low as 2.5% at 1 m and 1.4% at 400 m depth. Considering the amount of organic carbon which need to be degraded and low proportion of respiring bacteria, the bacteria could be assumed to have high activities. The EUB/DAPI ratios were 77 and 89% at 1 m and 400 m depths, respectively. Of the bacterial community, the other group was dominant at both depths, and gamma group of proteobacteria followed next. But the beta group of proteobacteria and Cytophaga-Flavobacterium groups occupied very small proportions. |
| Download PDF | Eng_370102_10-13p.pdf |