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Table 1 Titers of S. meliloti in soil and plant tissues§

From: Exploring the plant-associated bacterial communities in Medicago sativa L

Sample Titers
rpoE1-based nodC-based
Pot 1   
Soil 4.92 ± 2.82 x 104 2.78 ± 0.63 x 104
Nodules 3.07 ± 0.67 x 109 4.25 ±1.24 x 108 **
Stems 2.73 ± 1.21 x 104 3.22 ±2.4 x 103 *
Leaves 8.65 ± 4.04 x 103 4.28 ± 1.23 x 103
Pot 2   
Soil 1.16 ± 0.33 x 104 2.88 ± 1.09 x 104
Nodules 1.20 ± 0.50 x 1010 1.01 ± 0.10 x 109 **
Stems 2.37 ± 0.49 x 103 1.13 ± 0.15 x 103
Leaves 9.74 ± 5.08 x 102 2.34 ±0.78 x 102
Pot 3   
Soil 2.70 ± 0.41 x 105 7.42 ±0.93 x 104 *
Nodules 6.02 ± 1.45 x 109 2.02 ± 3.22 x 107 **
Stems 4.91 ± 0.95 x 105 1.07 ± 3.74 x 105
Leaves 5.54 ± 2.83 x 103 5.21 ± 3.01 x 103
  1. §Titers were estimated by qPCR [35] with rpoE1 and nodC markers and are expressed as n. of gene copies/g of tissue or soil; ± standard deviation from triplicate experiments. Asterisks indicate significant differences between estimates based on rpoE1 and nodC markers (*, P < 0.05; **, P < 0.01).