TABLE 2.
Redox-balancing systems for photoheterotrophic growth conditions in strains of R. capsulatus
| Strain | Redox-balancing system under following growth conditiona
|
|||
|---|---|---|---|---|
| M-A | M-A-D | M-G | M-G-D | |
| SB1003 | CBBb | CBB; DMSORc | CBB; Nitrogenased | CBB; nitrogenase; DMSOR |
| SBI/II | No growthe | DMSOR | Nitrogenase | Nitrogenase; DMSOR |
| RCP | Unknownf | Unknown; DMSOR | Unknown; Nitrogenase | Unknown; nitrogenase; DMSOR |
| SBP | Poor growth | DMSOR | Nitrogenase | Nitrogenase; DMSOR |
| SBP-PHC | Nitrogenase | Nitrogenase; DMSOR | Nitrogenase | Nitrogenase; DMSOR |
a
M-A, malate-ammonia; M-A-D, malate-ammonia-DMSO; M-G, malate-glutamate; M-G-D, malate-glutamate-DMSO.
b
CBB, CBB system.
c
DMSOR, DMSOR system.
d
Nitrogenase, dinitrogenase enzyme complex.
e
No growth in the absence of an exogenous oxidant, such as DMSO.
f
Unknown, redox-balancing mechanism remains to be established.