TABLE IV
FREE-ENERGY EFFICIENCY OF SOME CHEMO-LITHOTROPHIC BACTERIA
0
Organism
Hydrogenomonas spp.
Methanomonas spp.
Nitrosomonas spp.
Nitrobacter spp.
Thiobacillus thiooxidans
T. denitrificans
T. denitrificans
Reaction
H
2 + M0
2 = H
2 0
CH
4 + 20
2 = C0
2 + 2H
2 0
NH
4
+
+ H0
2
= N0
2 - + H
2 0 + 2H+
N0
2 - + MO2 = NO3S + H0
2 + H
2 0 = H
2 S0
4
6KNO3 + 5S + 2CaC0
3 = 3K
2 S0
4 + 2CaS0
4 + 2C0
2 + 3N
2
5Na
2 S
2 0
3 + 8KNO3 + 2NaHC0
3 = 6Na
2 S0
4 + 4K
2 S0
4 + 4N
2 + 2C0
2 + H0
2
Free-energy
efficiency
(%) "
26.4
0.6-29.6
(limits)
5.9
7.9
6.2
5.0
8.7
References
6
(a)
Φ)
(c)
(c)
(d)
(c)
(e)
a
From L. B. Baas-Becking and G. S. Parks, Physicl. Revs. 7, 85 (1927).
b
REFERENCES: (a) W. Ruhland, Jahrb. wiss. Botan. 63, 321 (1924); (b) N. L. Söhngen, Rec. trav. chim. 29, 238 (1910); (c) L. BaasBecking and G. S. Parks, PhysioL Revs. 7, 85 (1927); (d) S. A. Waksman and R. L. Starkey, J. Gen. PhysioL 5, 285 (1922); (e) R. Lieske,
Ber. Botin. Ges. 36, 12 (1912).
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