Table 2

Symbiotic phenotype of theotsAchmutant
Moderate drought Severe drought
Strain Treatment
NN NDW PDW TN ARA Lb Tre (B) Tre (C) NN NDW PDW TN ARA Lb Tre (B) Tre (C)
Wild-type Control 48 ± 6a 23 ± 3a 0.31 ± 0.02a 4.5 ± 0.3 24 ± 1a 33 ± 1a 1.17 ± 0.32a ND 56 ± 4a 35 ± 3a 0.51 ± 0.03a 12 ± 0.4a 22 ± 0.6a 37 ± 2a 2.12 ± 0.43b ND
Stress 45 ± 4a 22 ± 3a 0.34 ± 0.02a 5.0 ± 0.2 22 ± 2a 32 ± 1a 1.24 ± 0.20a ND 31 ± 3b 16 ± 1b 0.34 ± 0.03b 5.3 ± 0.1b 14 ± 0.7b 24 ± 1b 2.37 ± 0.39b ND
otsAch Control 48 ± 5a 24 ± 3a 0.37 ± 0.03a 5.5 ± 0.4 27 ± 3a 35 ± 3a 1.15 ± 0.29a ND 61 ± 4a 42 ± 5a 0.52 ± 0.03a 12.5 ± 0.5a 27 ± 1.2a 41 ± 4a 1.90 ± 0.32b ND
Stress 46 ± 5a 25 ± 5a 0.35 ± 0.05a 5.3 ± 0.3 24 ± 1a 35 ± 3a 1.25 ± 0.30a ND 35 ± 5b 19 ± 3b 0.37 ± 0.03b 5.5 ± 0.3b 16 ± 1.5b 25 ± 1b 2.08 ± 0.37b ND

Nodules number (NN), nodule dry weight [NDW, (mg plant-1)], plant dry weight [PDW, (g plant-1)], total nitrogen content [TN, (mg plant-1)], acetylene reduction activity [ARA, (μmol C2H4 h-1 g-1 NDW)],leghaemoglobin [Lb, (mg Lb g-1 NDW)], and trehalose (Tre) in bacteroids (B) and nodule cytosol (C) [μmol gDW-1] content in nodules and plants subjected or not (control) to moderate or severe drought conditions. Values in a column followed by the same lower-case letter are not significantly different as determined by the Tukey HSD test at P ≤ 0.05 (n = 9).

ND. Not detected.

Reina-Bueno et al.

Reina-Bueno et al. BMC Microbiology 2012 12:207   doi:10.1186/1471-2180-12-207

Open Data