TABLE 2.
Selected characteristics of root and macroalgal isolates
| Characteristic | Result for isolate:
|
|||||
|---|---|---|---|---|---|---|
| Burkholderia sp. strain LUP | Mesorhizobium sp. strain NMB1 | Stappia sp. strain M4 | Stappia sp. strain M8 | Stenotrophomonas sp. strain LUP | Xanthobacter sp. strain COX | |
| Motility | + | + | + | + | − | − |
| Oxidase reaction | + | + | + | + | − | + |
| Nitrate reduction | − | + | + | + | − | + |
| Denitrification | − | − | + | + | − | − |
| CO uptake ratea | 34 ± 1 | 25 ± 3 | 10 ± 1 | 6 ± 1 | 101 ± 14 | 17 ± 0.3 |
| Hydrogen oxidation | + | − | + | + | − | + |
| Growth substratesb | ||||||
| Sugars | 5/9 | 7/8 | 9/9 | 9/9 | 2/9 | 0/8 |
| Amino acids | 7/8 | 4/8 | 4/8 | 5/8 | 2/8 | 1/4 |
| Organic acids | 15/15 | 6/15 | 13/15 | 11/15 | 6/15 | 10/12 |
| Methanol | − | − | − | − | + | + |
| Sodium required | − | − | + | + | − | − |
a
CO uptake rates are means ± 1 standard error for triplicate determinations.
b
Numbers for growth substrates represent positive substrate responses out of total examined.