Table 1.
Physiological properties of Burkholderia and non-Burkholderia strains isolated from the inner tissues and surfaces of white lupin cluster roots
| Physiological property | % of isolates (n > 55) |
Significancea | |
|---|---|---|---|
| Burkholderia | Non-Burkholderia | ||
| Growth at low pH | 77 | 41 | *** |
| Growth on: | |||
| Citrate | 62 | 25 | *** |
| Malate | 95 | 87 | ns |
| Fumarate | 96 | 84 | ns |
| Oxalate | 93 | 2 | *** |
| P solubilization | 62 | 67 | ns |
| Siderophore production | 80 | 26 | *** |
| Auxin production | 4 | 43 | *** |
a
Differences in the percentages of Burkholderia and non-Burkholderia isolates capable of growth in each assay were tested using the chi-square test. ***, significant difference (P < 0.001); ns, not significant.