Files in this Data Supplement:

• Supplemental file 1 - Table S1 (Physical-chemical parameters of the artesian well water), S2 (Nucleotide sequences of partial 16S rRNA genes from cultured or uncultured microorganisms), S3 (Nucleotide sequences of partial pmoA/u-pmoA genes from DNA clones or Clonothrix fusca AW-b and Crenothrix sp. AW-a from enriched material), S4 (Nucleotide sequences of partial mxaF genes from DNA clones or Clonothrix fusca AW-b from enriched material), and S5 (Nucleotide sequences of almost entire 16S rRNA genes of Clonothrix fusca AW-b and Crenothrix sp. AW-a from enriched material)
  MS Word document, 68K.
• Supplemental file 2 - Fig. S1 (Optical and fluorescence microscopy of C. fusca filaments growing in chemically defined medium) and S2 (PCR-SSCP analysis of pmoA and mxaF sequences of microorganisms growing in enrichment media)
  Zipped PDF document, 1.6MB.
• Supplemental file 3 - Movie S1 (Phase-contrast movie showing C. fusca in an environment characterized by strong protozoan grazing pressure)
  Zipped MS video, 11MB.