Antifreeze proteins in polar sea ice diatoms: diversity and gene expression in the genus Fragilariopsis.

@article{BayerGiraldi2010AntifreezePI,
  title={Antifreeze proteins in polar sea ice diatoms: diversity and gene expression in the genus Fragilariopsis.},
  author={Maddalena Bayer-Giraldi and C Uhlig and Uwe John and Thomas Mock and Klaus Valentin},
  journal={Environmental microbiology},
  year={2010},
  volume={12 4},
  pages={1041-52}
}
Fragilariopsis is a dominating psychrophilic diatom genus in polar sea ice. The two species Fragilariopsis cylindrus and Fragilariopsis curta are able to grow and divide below freezing temperature of sea water and above average sea water salinity. Here we show that antifreeze proteins (AFPs), involved in cold adaptation in several psychrophilic organisms, are widespread in the two polar species. The presence of AFP genes (afps) as a multigene family indicated the importance of this group of… CONTINUE READING

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