KOPRI Repository

Comprehensive Analysis of Soil Bacterial Diversity and Structure in Terra Nova Bay of Victoria Land

Metadata Downloads
Title
Comprehensive Analysis of Soil Bacterial Diversity and Structure in Terra Nova Bay of Victoria Land
Other Titles
Comprehensive Analysis of Soil Bacterial Diversity and Structure in Terra Nova Bay of Victoria Land
Authors
Kim, Ok-Sun
Jeongsu Oh
Cho, Ahnna
Kim, Ji Hee
Lim, Hyounsoo
Hong, Soon Gyu
Issue Date
2012
Citation
Kim, Ok-Sun, et al. 2012. Comprehensive Analysis of Soil Bacterial Diversity and Structure in Terra Nova Bay of Victoria Land. Scientific Committee on Antarctic Research. Scientific Committee on Antarctic Research. 2012.08.03~.
Abstract
For several decades, terrestrial environments in Antarctica had been believed as sterilized habitats without any life forms because of the extreme conditions. However, some studies nowadays have started to report the unexpected high diversity of bacteria and their community is complex in these harsh environments. In this study, we investigated the bacterial community and diversity in soil samples collected near the Terra Nova Bay of Victoria Land. Total 42 terrestrial soil samples with depths of 0-3 cm and 3-10 cm were collected in February of 2011. Measured values of soil parameters were pH ranged from 5.19 to 9.27 and water content ranged from 1.3% to 19.3%. By the 16S rRNA genes amplicon sequencing using pyrosequencing method, 67,007 sequence reads were obtained and 7,007 OTUs defined by 97% similarity cutoff were detected. Fifty onedivisions in phylum level were recognized, where the phyla of Actinobacteria (21.7%), Proteobacteria (13.7%), Acidobacteria (10.8%) and Cyanobacteria (10.7%) were dominant. Bacterial community structures were corresponded to the habitat locality. Interestingly, diverse phylotypes of Cyanobacteria with 190 OTUs were detected. Furthermore, the most dominant OTUs were assigned as Nostoc calcicola with 1,341 sequence reads and Microcoleus vaginatus with 1,005 sequence reads, which belonged to the phylum Cyanobacteria. These findings can provide new insights regarding the cyanobacterial community structure and their ecological roles in this ecosystem.
URI
http://repository.kopri.re.kr/handle/201206/8443
Conference Name
Scientific Committee on Antarctic Research
Conference Place
Scientific Committee on Antarctic Research
Conference Date
2012.08.03~
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse