Table 1 Distribution frequency of endophytic Bacillus thuringiensis isolates in root nodules collected from different leguminous crop cultivars
Isolate identification no. | Crop species/Cultivars | Total heat-resistant colonies (CFU) | Confirmed B. thuringiensis isolates (n) | Bt indexa (×10−4) |
|---|---|---|---|---|
A | Soybean (Glycine max) | Â | Â | Â |
 1 |  VLS72 | 6.0 × 103 | 3 | 5.00 |
 2 |  VLS64 | 7.5 × 103 | 4 | 5.33 |
 3 |  VLS63 | 1.3 × 104 | 0 | 0.0 |
 4 |  VLSTc-1 | 3.0 × 103 | 0 | 0.0 |
 5 |  VLS21 | 1.1 × 104 | 1 | 0.95 |
 6 |  VLS2 | 3.5 × 103 | 0 | 0.0 |
 7 |  VLS47 | 4.5 × 103 | 0 | 0.0 |
B | Ricebean (Vigna umbellata) | Â | Â | Â |
 1 |  VRB1 | 8.5 × 103 | 1 | 1.18 |
 2 |  VRB53 | 1.2 × 103 | 0 | 0.0 |
 3 |  VRBIC-176563 | 9.5 × 102 | 0 | 0.0 |
C | Frenchbean (Phaseolus vulgaris) | Â | Â | Â |
 1 |  VL Bouni Bean-1 | 2.5 × 102 | 0 | 0.0 |
D | Gahat (Macrotyloma uniflorum) | Â | Â | Â |
 1 |  VLG8 | 3.5 × 103 | 0 | 0.0 |
 2 |  VLG10 | 1.1 × 104 | 0 | 0.0 |
 3 |  VLG15 | 9.5 × 103 | 1 | 1.05 |
 4 |  VLG19 | 5.5 × 103 | 0 | 0.0 |
 5 |  VLG20 | 7.5 × 103 | 0 | 0.0 |
E | Lentil (Lens culinaris) | Â | Â | Â |
 1 |  VL1 | 3.5 × 103 | 0 | 0.0 |
 2 |  VL2 | 9.0 × 103 | 1 | 1.11 |
 3 |  VL3 | 5.5 × 103 | 0 | 0.0 |
 4 |  VL4 | 1.4 × 103 | 3 | 21.42 |
 5 |  VL126 | 1.7 × 103 | 1 | 5.88 |
 6 |  VL507 | 7.0 × 103 | 0 | 0.0 |
F | Pea (Pisum sativum) | Â | Â | Â |
 1 |  VL42 | 1.6 × 103 | 0 | 0.0 |
 2 |  VL45 | 8.0 × 103 | 0 | 0.0 |
 3 |  VL47 | 6.0 × 103 | 0 | 0.0 |
Total | 25 cultivars | 1.2 × 105 | 15 | 1.23 |