Microbial Cell Factories

Table 1 Antioxidant enzyme activities in S. cerevisiae and C. humilis cells grown in YPD and in YPD + CuSO₄ 2.5 g · L^-1 (Cu)

From: Laboratory evolution of copper tolerant yeast strains

		S. cerevisiae				C. humilis
	non-evolved		evolved		non-evolved		evolved
	YPD	Cu	YPD	Cu	YPD	Cu	YPD	Cu
SOD	20.93 ± 0	n.d	39.22 ± 0	64.14 ± 0.92	132.97 ± 17.09	117.2 ± 21.26	32.34 ± 1.08	41.1 ± 8.42
Catalase	3.2 ± 0.45	n.d	3.23 ± 0.45	11.82 ± 1.26	81.5 ± 5.17	73.76 ± 6.74	74.14 ± 11.46	27.7 ± 4.4
Peroxidase	0.001 ± 0	n.d	0.0032 ± 0	0.004 ± 0	0.011 ± 0.001	0.019 ± 0.003	0.014 ± 0	0.008 ± 0
GPO	0.041 ± 0.001	n.d	0.012 ± 0.001	0.013 ± 0.009	0.19 ± 0.024	0.534 ± 0.039	0.235 ± 0.039	0.172 ± 0.07

Activities measured were superoxide dismutase (SOD), catalase, peroxidase and glutathione peroxidase (GPO). Values, reported as U · mg^-1 of proteins, are average of three independent measurements. n.d.: not determined due to lack of viable cells.

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