Reported glutamine synthetase activities in various tissues of different species of fish
| . | GSase activity (μmol min-1 g-1 tissue) . | . | . | . | . | . | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species . | Brain . | Liver . | Muscle . | Intestine . | Stomach . | Reference . | ||||
| Ureoosmotic | ||||||||||
| Squalus acanthias | 18.0 | 18.4 | 1.0 | - | - | Webb, 1980 | ||||
| Taeniura lymma | 7.4 | 25.0 | 1.4 | - | - | Webb, 1980 | ||||
| Ureotelic | ||||||||||
| Oreochromis alcalicus grahami | - | 6.2 | 0.3 | - | - | Lindley et al., 1999 | ||||
| Opsanus beta | 109.5 | 7.0 | - | - | - | Wang and Walsh, 2000; Anderson and Walsh, 1995 | ||||
| Opsanus beta | - | - | 0.12 | 3.10 | 6.6 | P.J. Walsh, personal communication | ||||
| Ureogenic | ||||||||||
| Porichthys notatus | 33.2 | 1.0 | 0.4 | - | - | Webb, 1980 | ||||
| Porichthys notatus | 59.4 | 1.3 | - | - | - | Wang and Walsh, 2000; Anderson and Walsh, 1995 | ||||
| Opsanus tau | 158.3 | 1.3 | - | - | - | Wang and Walsh, 2000; Anderson and Walsh, 1995 | ||||
| Mircopterus salmoides | - | 0.44 | 0.12 | 0.36 | - | Kong et al., 1998 | ||||
| Heteropneustes fossilis | 8.3 | 1.0 | - | - | - | Chakravorty et al., 1989 | ||||
| Nonureotelic/nonureogenic | ||||||||||
| Potamotrygon circularis | 10.9 | 0.2 | 0.0 | - | - | Webb, 1980 | ||||
| Oncorhynchus mykiss | - | 0.29 | 0.03 | 0.06 | - | Korte et al., 1997 | ||||
| Oncorhynchus mykiss | - | 0.86 | 0.04 | - | - | Todgham et al., 2001 | ||||
| (1.09)1 | (0.10)1 | |||||||||
| Platichthys stellatus | 49.7 | 0.50 | 0.0 | - | - | Webb, 1980 | ||||
| Ictalurus punctatus | - | 0.22 | 0.03 | 0.33 | - | Felskie et al., 1998 | ||||
| Cyprinus carpio | - | 0.41 | 0.07 | 0.99 | - | Felskie et al., 1998 | ||||
| Carassius auratus | - | 0.14 | 0.04 | 1.02 | - | Felskie et al., 1998 | ||||
| Amia calva | - | 0.28 | 0.21 | 0.50 | - | Felskie et al., 1998 | ||||
| Amia calva | 7.2 | 0.08 | 0.09-0.14 | 0.11 | - | Chamberlin et al., 1991 | ||||
| B. sinensis | - | 0.28 | 0.30 | 1.6 | 12.2 | This study | ||||
| (1.51)2 | (0.81)2 | (4.0)2 | ||||||||
| . | GSase activity (μmol min-1 g-1 tissue) . | . | . | . | . | . | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species . | Brain . | Liver . | Muscle . | Intestine . | Stomach . | Reference . | ||||
| Ureoosmotic | ||||||||||
| Squalus acanthias | 18.0 | 18.4 | 1.0 | - | - | Webb, 1980 | ||||
| Taeniura lymma | 7.4 | 25.0 | 1.4 | - | - | Webb, 1980 | ||||
| Ureotelic | ||||||||||
| Oreochromis alcalicus grahami | - | 6.2 | 0.3 | - | - | Lindley et al., 1999 | ||||
| Opsanus beta | 109.5 | 7.0 | - | - | - | Wang and Walsh, 2000; Anderson and Walsh, 1995 | ||||
| Opsanus beta | - | - | 0.12 | 3.10 | 6.6 | P.J. Walsh, personal communication | ||||
| Ureogenic | ||||||||||
| Porichthys notatus | 33.2 | 1.0 | 0.4 | - | - | Webb, 1980 | ||||
| Porichthys notatus | 59.4 | 1.3 | - | - | - | Wang and Walsh, 2000; Anderson and Walsh, 1995 | ||||
| Opsanus tau | 158.3 | 1.3 | - | - | - | Wang and Walsh, 2000; Anderson and Walsh, 1995 | ||||
| Mircopterus salmoides | - | 0.44 | 0.12 | 0.36 | - | Kong et al., 1998 | ||||
| Heteropneustes fossilis | 8.3 | 1.0 | - | - | - | Chakravorty et al., 1989 | ||||
| Nonureotelic/nonureogenic | ||||||||||
| Potamotrygon circularis | 10.9 | 0.2 | 0.0 | - | - | Webb, 1980 | ||||
| Oncorhynchus mykiss | - | 0.29 | 0.03 | 0.06 | - | Korte et al., 1997 | ||||
| Oncorhynchus mykiss | - | 0.86 | 0.04 | - | - | Todgham et al., 2001 | ||||
| (1.09)1 | (0.10)1 | |||||||||
| Platichthys stellatus | 49.7 | 0.50 | 0.0 | - | - | Webb, 1980 | ||||
| Ictalurus punctatus | - | 0.22 | 0.03 | 0.33 | - | Felskie et al., 1998 | ||||
| Cyprinus carpio | - | 0.41 | 0.07 | 0.99 | - | Felskie et al., 1998 | ||||
| Carassius auratus | - | 0.14 | 0.04 | 1.02 | - | Felskie et al., 1998 | ||||
| Amia calva | - | 0.28 | 0.21 | 0.50 | - | Felskie et al., 1998 | ||||
| Amia calva | 7.2 | 0.08 | 0.09-0.14 | 0.11 | - | Chamberlin et al., 1991 | ||||
| B. sinensis | - | 0.28 | 0.30 | 1.6 | 12.2 | This study | ||||
| (1.51)2 | (0.81)2 | (4.0)2 | ||||||||