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Table 5 Comparison of microbial community composition of US American ISS dust samples [4] and Russian ISS dust samples (this study)

From: Resilient microorganisms in dust samples of the International Space Station—survival of the adaptation specialists

   US American ISS dust samples Russian ISS dust samples
   ISS HEPA total ISS HEPA viable ISS DEBRIS ISS DEBRIS viable Incubated dust filter-1 (2004) Incubated dust collector (2008) Incubated dust filter (2008) Incubated dust filter-2 (2004) Incubated dust collector (2004) Dust filter-1 (2004) Dust collector (2008) Dust filter (2008)
  Total number of reads 553,176 587,569 1,148,047 1,116,419 24,382 61,571 49,956 7278 39,289 15,021 7599 22,343
  Percentages of sequences of all dominant phyla (Archaea and Bacteria) 90.92 99.65 92.35 98.26 95.6 92.9 89.2 89 92.1 93.9 92.2 81.3
  Percentages of sequences of dominant bacterial phyla (without Archaea) 90.92 99.65 92.35 98.26 95.6 92.9 89.2 89 92.1 45.2 91.8 81.3
Actinobacteria Percentage of sequences 63.28 95.28 40.52 66.54 39.7 21.3 29.9 12.9 19.4 14.2 36.0 20.0
Number of Genera 78 55 62 38 21 50 28 21 54 13 21 22
Number of dominant generaa 16 7 28 16 8 16 11 2 15 5 4 5
Firmicutes Percentage of sequences 24.83 3,97 45.67 28.48 40.5 28.6 44.4 15.8 39.9 20.8 30.3 44.2
Number of Genera 118 67 100 31 89 105 92 23 99 41 39 84
Number of dominant generaa 50 17 65 18 39 29 33 2 33 7 6 24
Proteobacteria Percentage of sequences 2,81 0,41 6,16 3,24 15.4 43.0 14.9 60.3 32.8 10.2 25.5 17.1
Number of Genera 95 65 89 30 35 82 43 20 88 19 26 40
Number of dominant generaa 22 7 49 10 9 25 13 8 22 4 5 10
Thaumarchaea Percentage of sequences 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 48.7 0.4 0.0
Number of Genera 0 0 0 0 0 0 0 0 0 2 1 0
Number of dominant generaa 0 0 0 0 0 0 0 0 0 1 0 0
  1. a>100 sequence counts