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. 2021 Jan 13;82(2):442–458. doi: 10.1007/s00248-020-01672-w

Table 2.

Results of cell cultures on ultrapure agarose, tryptic soy agar, LB agar, and plate count agar plates with salt amendments, recording the change in the order of magnitude of CFUs with salt amendments (all numbers are scaled by logarithmic transformation and normalized as the difference from the plates with 4.5-mL water amendments). Negative effects of different salts on microbial growth are in italics, and those caused the decrease in CFUs more than 1, 2, 3, and 4 orders of magnitude are labeled with -, --, ---, and ----, respectively

Type of culture plate Amendment MES PONR Yungay TZ-0 TZ-4 TZ-5 TZ-6
Ultrapure agarose Chloride 0 0.78 0.64 0.42 0.04 1.67 0.64
Sulfate 0 1.16- 1.64- 0.62 0.35 0 0.06
Carbonate 0 0.48 0.01 2.05-- 0.48 0 0.72
Acetate 0 1.16- 0.37 0.64 0.94 0.90 0.35
l-lactate 2.34 1.87 0.67 1.00 1.49- 1.63 0.18
Tryptic soy agar Chloride 2.90-- 2.45-- 0.50 0.24 1.59- 1.22 0.01
Sulfate 2.42-- 2.85-- 0.05 0.58 0.77 0.82 0.01
Carbonate 1.16- 2.54-- 0.38 1.63- 3.74--- 0.02 0.14
Acetate 3.38--- 3.15--- 2.09-- 0.07 0.51 0.44 0.34
l-lactate 0.58 1.77- 0.21 0.27 0.03 0.20 0.03
LB agar Chloride 0.86 3.52--- 1.23- 0.56 2.61-- 0.08 0.11
Sulfate 0.48 3.52--- 1.41- 0.24 2.12-- 0.40 0.38
Carbonate 2.57 2.74-- 1.84- 2.69-- 3.60--- 0.22 1.54-
Acetate 0.12 3.22--- 1.18- 0.14 0.35 0.57 0.59
l-lactate 1.35 1.64- 0.47 0.34 0.43 0.72 0.44
Plate count agar Chloride 2.75-- 3.21--- 3.38--- 0.43 0.85 0.33 0.86
Sulfate 1.16- 1.99- 4.84---- 1.16 0.34 0.33 0.99
Carbonate 0.07 2.69-- 2.60-- 1.08- 3.49--- 0.29 1.37-
Acetate 2.75-- 3.65--- 2.71-- 0.52 0.70 0.73 0.49
l-lactate 0.33 2.46-- 0.01 0.65 0.32 0.50 0.20