TABLE 5.

Properties of hydrogen sulfide production fermentations^a

Strain genotype	Fermentation rate (g/h)b	Total wt loss (g)c	Mean total H2S (μg/liter) ± SEM
BY4742	0.182	19.62	0 ± 0.00
met17Δ	0.180	19.96	245 ± 120.28
cys4Δ	0.024	6.70	493 ± 108.10
gos1Δ	0.126	17.53	311 ± 16.65
fcy22Δ	0.197	17.23	307 ± 12.86
tpo2Δ	0.139	17.17	292 ± 13.86
cgr1Δ	0.151	18.73	232 ± 96.08
hom2Δ	0.003	6.70	198 ± 137.58
hom6Δ	0.024	8.35	113 ± 30.02
atp11Δ	0.118	14.94	20 ± 131.88
ser33Δ	0.149	15.85	73 ± 82.20
hht2Δ	0.166	18.71	44 ± 58.92
iki3Δ	0.100	15.60	7 ± 2.31
rxt2Δ	0.158	16.79	8 ± 0.00
ypl035CΔ	0.163	18.54	4 ± 0.00
sit4Δ	0.004	13.09	7 ± 2.31
psy4Δ	0.056	17.43	4 ± 0.00

^aValues represent the average of independent determinations of three replicates. All strains are in the BY4742 background.

^bThe maximum fermentation rate was calculated from the fermentation rate data by using time points corresponding to the steepest decline in weight.

^cWeight loss is expressed as total grams per 300 ml of medium, corrected for evaporative loss.