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. Author manuscript; available in PMC: 2021 Jan 5.
Published in final edited form as: Geosciences (Basel). 2019;10(1):5. doi: 10.3390/geosciences10010005

Table 3.

Liquid culture enrichment-polymerase chain reaction (E-PCR) cycle threshold data to a Rn of 0.1.

Soils Number of Spiked Endospores/9 Grams Soil
0 4.5 45 225 675 1350
Loam 1 No Amplification No Amplification 25.5 25.5 25.5 25.5
Loam 2 No Amplification 27 27 27 27 27
Loam 3 No Amplification 25 27 25 23.5 25
Sand 1 No Amplification 35 27 27 26 27
Sand 2 No Amplification 24 25 26 25 25
Sand 3 No Amplification 25 24 24 24 24
Clay 1 No Amplification 24 24.5 24 23.5 24
Clay 2 No Amplification 31 29 27.5 27 25
Clay 3 No Amplification 25 24.5 24.5 24.5 24.5