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Table 2 Total and viable microbiological characteristics of particles accumulated in ISS and other Earth-based cleanrooms

From: Microbiomes of the dust particles collected from the International Space Station and Spacecraft Assembly Facilities

Sample

Cutivable bacterial population (CFU/g) that are:

qPCR-based bacterial population (16S rRNA copies/g)

Viable bacterial population (B/A ×100)

ATP-based microbial population (RLU/g):

Viable microbial population (D/C ×100)

 

Bacteria

Fungi

Untreated (A)

PMA-treated (B)

Total ATP (C)

Intracellular ATP (D)

ISS HEPA

8.17 × 105

2.34 × 103

1.7 × 109

2.91 × 107

1.7

2.06 × 107

3.54 × 105

1.7

ISS Debris

1.34 × 106

5.02 × 104

4.5 × 108

1.21 × 107

2.7

3.50 × 107

2.65 × 107

75.7

JPL-SAF Debris

1.28 × 105

5.05 × 104

3.1 × 108

2.07 × 108

66.8

1.91 × 107

2.10 × 106

11.0

JPL-103 Debris

1.40 × 104

3.30 × 103

4.3 × 108

1.90 × 107

4.5

2.60 × 106

1.20 × 106

46.2

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Microbiome

ISSN: 2049-2618

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