Table 2.

Effect of 2% NaCl on the chitinolytic activity of marine-derived strains O.Y. 3807 and O.Y. 1607 and the terrestrial strain T203^a

Isolate and activity type	4-MU-(GlcNAc)			4-MU-(GlcNAc)2
	Chitinolytic act (nmol MU/min/μg proteins)		Inhibition (%)	Chitinolytic act (nmol MU/min/μg proteins) with		Inhibition (%)
	Control	NaCl (2%)		Control	NaCl (2%)
Intracellular
T203	1.52 ± 0.01	0.86 ± 0.05	43	0.13 ± 0.04	0.03 ± 0.008	79
O.Y. 3807	1.06 ± 0.14	0.22 ± 0.05	79	0.03 ± 0.01	0.003 ± 0.05	89
O.Y. 1607	1.36 ± 0.18	0.85 ± 0.17	38	0.13 ± 0.004	0.03 ± 0.01	77
Extracellular
T203	0.1 ± 0.007	0.01 ± 0.004	84	0.013 ± 0.004	0.003 ± 0.001	77
O.Y. 3807	0.04 ± 0.002	0.004 ± 0.00	91	0.008 ± 0.001	0.002 ± 0.007	70
O.Y. 1607	0.13 ± 0.02	0.027 ± 0.004	80	0.011 ± 0.007	0.002 ± 0.007	77

^aResults (± standard deviations) are averages from three independent experiments with three replicates for each isolate and treatment.