TABLE 1.
Host range of N2O reducing Bradyrhizobium strains tested on six legume crops.
| Strains∗ | Host of isolation | Legume hosts tested | |||||
| Cowpeaa | Groundnutb | Mungbeanc | Soybeand | Haricot beane | Alfalfaf | ||
| AC70c | Phaseolus vulgaris | √ | √ | √ | – | – | – |
| AC79a | Erythrina brucei | √ | – | – | – | – | – |
| AC79b1 | Erythrina brucei | √ | – | – | – | – | – |
| AC79b3 | Erythrina brucei | √ | √ | – | – | – | – |
| AC79c2 | Erythrina brucei | √ | √ | – | – | – | – |
| AC86b2 | Cajanus cajan | √ | √ | – | – | – | – |
| AC86d2 | Cajanus cajan | √ | √ | – | – | – | – |
| AC87h | Millettia ferruginea | √ | √ | – | – | – | – |
| AC87j1 | Millettia ferruginea | √ | √ | – | – | – | – |
| AC87j2 | Millettia ferruginea | √ | √ | – | – | – | – |
| AC92d | Acacia gummifera | √ | √ | – | – | – | – |
| AC101b | Acacia saligna | √ | √ | √ | – | – | – |
| AC101c | Acacia saligna | √ | √ | √ | – | – | – |
| AC101e | Acacia saligna | √ | – | √ | – | – | – |
The plants were harvested 35 days after inoculation, and host ranges were assessed by scoring the presence of nodules on the roots. ∗The phylogeny of 39 Bradyrhizobium strains isolated from legume plants in Ethiopia (Wolde-Meskel et al., 2004b) was determined through multilocus sequence analyses (MLSA) which clustered the strains into seven genospecies (Degefu et al., 2017). Here we tested the host range of 14 Bradyrhizobium strains in genospecies I, identified as “strong N2O reducers” (Mania et al., 2019). aLocal landrace Hawassa; blocal landrace from Gofa; clocal landrace from Gofa; dvariety Ethio Yugoslavia; evariety Hawassa Dume; fvariety 1086.