Table 3.
Traits possibly involved in biocontrol and/or plant growth-promoting activity of bacterial endophytes from Iris pseudacorus L.
| Strain | Antagonistic activity against phytopathogenic fungi(cm) | HCN | Siderophores | Production of exoenzymes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F. solani | F. culmorum | F. oxysporum | B. cinerea | P. ultimum | R. solani | A. alternata | Lipase | Protease | Chitinase | Glucanase | Production ofIAA (µg/ml) | |||
| Bacillus cereus HRT1 | - | - | - | 0.7±0.1 | 0.9±0.1 | 0.8±0.1 | 0.6±0.1 | - | + | - | + | + | + | 7.8±0.2 |
| Janthinobacterium lividum HRT2 | - | - | 1.1±0.1 | 1.2±0.2 | - | 1.0±0.1 | 0.7±0.1 | + | + | - | + | + | - | - |
| Bacillus toyonensis HRT5 | 1.1±0.2 | 1.0±0.2 | - | - | 0.9±0.1 | - | - | + | + | - | + | - | + | 6.9±0.3 |
| Enterobacter xiangfangensis HRT6 | - | - | - | - | - | - | - | - | - | + | - | - | - | - |
| Brevibacterium frigoritolerans HRT8 | 0.9±0.1 | 0.9±0.2 | 0.7±0.1 | 0.8±0.1 | - | - | 0.6±0.1 | + | + | - | + | + | - | - |
| Agrobacterium tumefaciens HRT9 | - | - | - | - | - | - | - | - | - | - | - | - | - | 8.3±0.3 |
| Streptomyces atroolivaceus HRT11 | 0.7±0.1 | 0.8±0.1 | 0.8±0.1 | - | - | 0.7±0.1 | - | + | + | + | + | - | + | - |
| Rhizobium galegae HRT12 | - | - | - | - | - | - | - | - | - | - | - | - | - | 6.5±0.2 |
| Streptomyces atratus HRT13 | 0.7±0.1 | 0.7±0.1 | - | 0.8±0.1 | 1.0±0.1 | 0.6±0.1 | - | + | + | - | + | + | - | - |
| Agrobacterium vitis HRT14 | - | - | - | - | - | - | - | - | - | - | - | - | - | 7.2±0.3 |
| Xanthomonas translucens HRT15 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Pseudomonas gessardii HRT18 | 1.0±0.1 | 1.1±0.1 | 1.0±0.2 | 0.9±0.1 | 0.9±0.2 | 1.0±0.2 | 0.8±0.1 | + | + | + | + | + | + | 6.8±0.3 |
| Pantoea ananatis HRN4 | - | - | - | 0.8±0.1 | - | 0.7±0.1 | - | - | + | - | + | - | + | - |
| Staphylococcus succinus HST1 | - | - | - | - | - | - | - | - | - | - | - | - | - | 5.5±0.2 |
| Streptomyces mediolani HST2 | 0.8±0.1 | 0.9±0.1 | 0.7±0.1 | - | - | - | - | - | + | + | - | + | - | - |
| Variovorax ginsengi soli HST9 | - | - | - | - | - | - | - | - | - | + | - | - | - | |
| Brevibacterium frigoritolerans HST10 | - | - | - | 0.8±0.1 | 0.9±0.1 | - | - | + | + | - | + | - | + | 6.1±0.3 |
| Pantoea ananatis HST11 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Paenibacillus lautus HST12 | 1.0±0.1 | - | - | - | 0.8 ±0.1 | - | 0.7±0.1 | + | + | + | + | + | - | 5.5±0.3 |
| Bacillus toyonensis HST13 | 0.6±0.1 | 0.8±0.1 | 0.7±0.1 | - | - | 0.6±0.1 | 0.5±0.1 | + | + | + | + | + | - | - |
| Bacillus megaterium HST16 | - | - | - | - | - | - | - | - | - | - | + | - | - | 8.4±0.3 |
| Brevibacterium frigoritolerans HST17 | - | - | - | 0.7±0.1 | - | 0.9±0.1 | - | - | + | - | + | - | + | 5.4±0.3 |
| Paenibacillus xylanexedens HST18 | - | - | - | - | - | - | - | - | - | - | + | - | - | 4.5±0.2 |
| Bacillus aryabhattai HSN1 | - | - | 0.8±0.1 | - | 0.7±0.1 | 0.9±0.1 | - | + | + | - | + | + | - | 8.9±0.3 |
| Plant extract | 0.5±0.1 | 0.4±0.1 | 0.4±0.1 | - | 0.4±0.1 | 0.5±0.1 | - | - | - | - | - | - | - | - |
“+” positive; “-” negative