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Table 1 Zinc tolerance of the LAB strains against different zinc concentrations

From: Sustainable microbial cell nanofactory for zinc oxide nanoparticles production by zinc-tolerant probiotic Lactobacillus plantarum strain TA4

Strain codeInhibition zone (mm)
Zn2+ concentration (mM)
20406080100200300400500600
TA4aR(–)R(–)R(–)R(–)R(–)R(–)R(–)R(0.5)R(1)S(1.2)
TP2R(–)R(–)R(–)R(–)R(0.5)S(2)S(3)S(4)S(4.5)S(6)
TP6R(–)R(–)R(–)R(–)R(–)S(2)S(4)S(4)S(4)S(5)
SC2R(–)R(–)R(–)R(1)R(1)S(1.5)S(3)S(4)S(4.5)S(6)
SC4R(–)R(0.5)R(0.5)R(1)R(1)S(2)S(3)S(4)S(4.5)S(5)
SC7R(–)R(–)R(–)R(–)R(–)R(1)S(2)S(2)S(3)S(4.5)
SC8aR(–)R(–)R(–)R(–)R(–)R(0.5)R(0.5)R(1)R(1)S(1.5)
MP3R(–)R(–)R(–)R(0.5)R(0.5)S(2)S(2)S(2)S(3)S(4)
MP6R(–)R(–)R(0.5)R(1)R(1)S(2)S(4)S(4.5)S(4.5)S(5)
FF2aR(–)R(–)R(–)R(–)R(–)R(–)R(1)R(1)R(1)S(2)
FF4R(–)R(–)R(–)R(–)R(–)S(2)S(2.5)S(3)S(3)S(4)
MPJ1R(–)R(–)R(–)R(–)R(–)S(2)S(3)S(3.5)S(4)S(6)
MPJ2R(–)R(–)R(–)R(–)R(–)S(1.5)S(2)S(3)S(5)S(5)
MPJ4R(–)R(–)R(–)R(–)R(–)S(2)S(2)S(3)S(4)S(5)
MPJ5R(–)R(–)R(0.5)R(0.5)R(1)S(2)S(3)S(5)S(5)S(5.5)
MPJ7R(–)R(–)R(–)R(–)R(–)S(2.5)S(3)S(4)S(5)S(5)
MPJ9R(–)R(–)R(–)R(–)R(–)S(2)S(2.5)S(2.5)S(4)S(5)
MPJ10aR(–)R(–)R(–)R(–)R(–)R(0.5)R(0.5)R(1)R(1)S(2)
  1. The results of the inhibition zone are shown in parenthesis
  2. S sensitive (≥ 1.5 mm), R resistant (≤ 1 mm)
  3. aIndicating the strains that exhibited the highest MTC value