Table 2.

Enzymatic activities detected in culture supernatants of wild-type and gspAB Aeromonas and Vibrio species

OrganismStrainMean activity ± SD (%)a
LipasebProteasecAmylased
A. salmonicidaAsR0.980 ± 0.072 (100)NANA
As-gspA0.243 ± 0.051 (24.8)*NANA
V. choleraeBah2-R3.71 ± 0.042 (100)3.08 ± 0.287 (100)NA
Bah2-gspA3.74 ± 0.378 (101)2.28 ± 0.269 (74)*NA
V. vulnificusVvR61.3 ± 6.74 (100)0.221 ± 0.019 (100)22.6 ± 2.20 (100)
Vv-gspA53.7 ± 6.97 (87.6)0.186 ± 0.011 (84.2)19.9 ± 1.51 (88.1)
V. parahaemolyticusVpR0.276 ± 0.031 (100)NA19.8 ± 1.10 (100)
Vp-gspA0.211 ± 0.001 (76.4)*NA18.8 ± 1.03 (94.9)
  • a The wild-type activity for each species is set as 100%. NA, no detectable activity;

  • * , significantly different;

  • , not significantly different.

  • b Activity is expressed in μM/min/OD600 unit.

  • c Activity is expressed in A450/hr/OD600 unit.

  • d Activity is expressed in A595/hr/OD600 unit × 103.