From: Measurement of microbial activity in soil by colorimetric observation of in situ dye reduction: an approach to detection of extraterrestrial life
Soil Type
Plate Count1 (viable cells/g soil)
Fluorescence2 (ng DNA/g soil)
Red sand
2.74 × 104
3.68
Silica sand
ND
Beacon Valley, Antarctica
Lake Boney Basin, Antarctica
4.2 × 103
38.9
Blank (reagents only)
0