Table 2.
Distribution of nifH-positive representative bacterial taxa in the leaf, stem and root of Jatropha germplasm accessions
| Phylogenetic group | Genera (21) | Number of isolates | |||||
|---|---|---|---|---|---|---|---|
| AR-activity positivea | AR-activity negativeb | ||||||
| Leaf | Stem | Root | Leaf | Stem | Root | ||
| Actinobacteria | Cellulomonas | 1 | |||||
| Curtobacterium | 10 | 35 | 1 | ||||
| Microbacterium | 16 | 21 | 4 | ||||
| Micromonospora | 1 | 2 | |||||
| Mycobacterium | 1 | 5 | |||||
| Bacteroidetes | Chryseobacterium | 1 | 1 | ||||
| Firmicutes | Paenibacillus | 3 | |||||
| α-Proteobacteria | Bradyrhizobium | 1 | |||||
| Ensifer | 1 | 13 | |||||
| Herbaspirillum | 1 | ||||||
| Mesorhizobium | 3 | ||||||
| Methylobacterium | 63 | 21 | 2 | 30 | 7 | ||
| Pleomorphomonas | 1 | ||||||
| Rhizobium | 2 | 2 | 14 | 52 | |||
| Sphingomonas | 15 | 16 | 12 | 16 | 4 | ||
| β-Proteobacteria | Achromobacter | 11 | |||||
| Burkholderia | 4 | 1 | |||||
| γ-Proteobacteria | Klebsiella | 1 | |||||
| Kosakonia | 1 | 8 | 1 | ||||
| Enterobacter | 1 | 8 | 4 | ||||
| Pantoea | 4 | 12 | 33 | 11 | 2 | ||
| Pseudomonas | 6 | 16 | 104 | 1 | 8 | 39 | |
| Stenotrophomonas | 5 | ||||||
aNumber of positive isolates showing ethylene peak was measured by GC
bNumber of isolates failed to produce ethylene peak or undetectable quantity