TABLE 3.
Results of the in vivo assays of the biocontrol activity of bacterial endophytes against the tomato bacterial pathogens Clavibacter michiganensis subsp. michiganensis (Cmm) and Xanthomonas euvesicatoria pv. perforans (Xep).
|
Cmm |
Xep |
||||
| Bacterial strains | DI 30 dpia | AUDPC | % of dead plants | n. spot/cm2 leaf areab | % reductionc |
| Pseudomonas plecoglossicida _171 | 4.71cd | 51.78d | 84.70% | 4.02bc | 43.506.96 |
| P. plecoglossicida _172 | 4.00abc | 35.29abc | 57.14% | 1.46a | 79.501.79 |
| Pseudomonas citronellolis_f1 | 2.28a | 15.86a | 0.00% | 4.88c | 31.4014.76 |
| Pseudomonas monteilii_f53 | 4.14abc | 40.43abc | 57.14% | 2.99abc | 57.911.14 |
| P. plecoglossicida_f56 | 4.71cd | 33.00abc | 84.70% | 4.88c | 31.3112.39 |
| Bacillus velezensis _261 | 3.28abc | 24.86abc | 14.30% | 2.00ab | 71.834.40 |
| B. velezensis_263 | 5.00c | 47.64bc | 100% | 2.16ab | 69.616.53 |
| B. velezensis _265 | 2.71ab | 30.35abc | 14.30% | 1.30a | 81.703.20 |
| Bacillus megaterium_268 | 3.00abc | 22.71ab | 28.57% | 2.70ab | 61.965.67 |
| B. velezensis _306 | 3.00abc | 32.93abc | 14.30% | 2.06ab | 70.976.82 |
| Positive control | 4.71cd | 36.92abc | 71.42% | 7.11d | / |
aDI 30 dpi: disease index based on a 0–5-point disease scale 30 days post-inoculation. bDisease severity recorded as number of spot/cm2 leaf area assessed 10 days post–Xep inoculation. cPercentage reduction in lesion numbers per unit leaf area compared to the pathogen-only control ± standard error. Means in a column followed by the same letter are not significantly different according to Student–Newman–Keuls test at p ≤ 0.05. AUDPC, area under the disease progress curve. http://bioinformatics.psb.ugent.be/webtools/Venn/.