Ocean and Polar Research

  • 제28권2호
  • /
  • Pages.107-117
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  • 2006
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  • 1598-141X(pISSN)
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  • 2234-7313(eISSN)
한국해양과학기술원 (Korea Institute of Ocean Science & Technology)
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노르웨이 북극다산기지 주변에 형성된 일시적 담수지의 미세조류 및 Chlamydomonm 18S rDNA의 유전자 특성

A Study on the Freshwater Algal Flora Occurring in Temporary Ponds around the Dasan Arctic Station, Ny-Alesund (Norway), and the Molecular Characteristics of Chlamydomonas 18S rDNA

  • Ki, Jang-Seu (Department of Life Science, College of Natural Sciences Hanyang University) ;
  • Kang, Sung-Ho (Korea Polar Research Institute, KORDI) ;
  • Jung, Sung-Won (Department of Life Science, College of Natural Sciences Hanyang University) ;
  • Park, Bum-Soo (Department of Life Science, College of Natural Sciences Hanyang University) ;
  • Han, Myung-Soo (Department of Life Science, College of Natural Sciences Hanyang University)
  • 발행 : 2006.06.30
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초록

Freshwater algal studies in North polar environments are relatively few. This study presented the algal-flora, -biomass and genetic features of dominant cells collected from temporary ponds around the Polar Research Station (PRS), Norway. Water samples were collected from 4 stations around PRS, and analyzed for their environmental and biological variables. Water temperature, salinity and conductivity ranged from 5 to $10^{\circ}C$, 0.1 to $0.3%_{\circ}$ and 0.21 to $0.36{\mu}S/cm$, respectively. Chlorophyll a concentration ranged from 1.8 to $11.1{\mu}g/l$, and that of the size-fractionated cells was recorded from 0.7 to $1.1{\mu}g/l$ in picoplankton 0.3 to $6.5{\mu}g/l$ in nanoplankton, and 0.4 to $3.9{\mu}g/l$ in microplankton respectively. Algal flora in the present study was recorded as 10 genera, in which Chlamydomonas, particularly, was dominant in all studied sites. By comparison of Chlamydomonas 18S rDNA sequences, including two isolates from PRS, they formed a distinct clade against others: sequence similarity was significantly low (<97.2%) with C. noctigama, being the highest score by BLAST search in GenBank. This study was valuable for basic knowledge regarding the freshwater algae around PRS and their genetic information.

키워드

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  3. Effects of Temperature and Salinity on the Growth and the Optimum Nitrogen to Phosphorus Ratio for the Culture ofDiatoma tenueIsolated from a Temporary Arctic Pond in Svalbard, Norway vol.22, pp.4, 2007, https://doi.org/10.1080/02705060.2007.9664823
  4. List of Korean Names for the Vascular Plants in Spitsbergen Island, in the Arctic Region vol.34, pp.1, 2012, https://doi.org/10.4217/OPR.2012.34.1.101
  5. A molecular survey of freshwater microeukaryotes in an Arctic reservoir (Svalbard, 79°N) in summer by using next-generation sequencing vol.38, pp.2, 2015, https://doi.org/10.1007/s00300-014-1576-9
  6. Testing addition of Pseudomonas fluorescens HYK0210-SK09 to mitigate blooms of the diatom Stephanodiscus hantzschii in small- and large-scale mesocosms vol.22, pp.4, 2010, https://doi.org/10.1007/s10811-009-9473-2