Renal l-gulono-1,4-lactone oxidase activity as affected by dietary ascorbic acid in lake sturgeon (Acipenser fulvescens)

Moreau, Régis; Dąbrowski, Konrad; Sato, Paul H.

doi:10.1016/s0044-8486(99)00211-2

Cited by 31 publications

(27 citation statements)

References 37 publications

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“…Sturgeons have the ability to biosynthesis glucose to ascorbic acid using the L-gulono-1, 4-lactone oxidize enzyme (Moreau et al 1999), but in artificial rearing conditions for young Beluga Sturgeon Huso huso, additional ascorbic acid was required in the diet (Falahatkar et al 2006). Hafezieh (2009) used ascorbic acid-enriched Artemia nauplii for Persian Sturgeon larval feeding and observed that the growth rate of sturgeon larva was not significantly increased compared with the control group.…”

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confidence: 99%

Production and Enrichment of Chironomid Larva with Different Levels of Vitamin C and Effects on Performance of Persian Sturgeon Larvae

et al. 2014

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Chironomid larvae have a high reproduction capacity. Because of their excellent nutritional quality, they have great potential in larval fish nutrition, specially bottom feeders like sturgeons. In this study, indoor production of Chironomus riparius was performed by controlling the physicochemical factors and developing an appropriate condition for this insect to complete the life cycle. Enrichment of lava was conducted by adding 0 (C0), 100 (C100), or 1000 (C1000) mg of ascorbic acid to 1 kg of chicken manure (as substrate). Ascorbic acid analysis of chironomid larva showed significant differences among the groups: 74.2 μg/g for C0, 325.0 μg/g for C100, and 779.9 for C1000. In the second experiment, enriched chironomids were fed to larval Persian Sturgeon Acipenser persicus and were compared with sturgeons fed live cladocerans, Daphnia, which are regulary used in hatcheries. Length and weight measurements after 14 d of the experimental period showed no significant differences in growth performance. Analysis of ascorbic acid in Persian Sturgeon viscera also showed no significant differences between the groups. In conclusion, chironomids could be cultured indoors and can be enriched to meet the nutritional requirements of fish. We found ascorbic acid did not have a signifucant effect on Persian Sturgeon larval feeding, but longer feeding periods and implication of unfavorable physicochemical conditions or causing stress tests might demonstrate the beneficial effects of this vitamin.

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Section: Downloaded By [Tulane University] At 22:08 26 September 2014mentioning

confidence: 99%

Production and Enrichment of Chironomid Larva with Different Levels of Vitamin C and Effects on Performance of Persian Sturgeon Larvae

et al. 2014

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“…However, several ancient fish species such as sea lamprey, Petromyzon marinus (Moreau and Dabrowski 1998); lake sturgeons, Acipenser fulvescens (Moreau et al 1999); freshwater stingray, Potamotrygon sp. ; and South American lungfish, Lepidosiren paradoxa (Fracalossi et al 2001) retain GLO activity in their kidneys.…”

Section: Discussionmentioning

confidence: 99%

Vitamin C requirement of adult genetically improved farmed tilapia, Oreochromis niloticus

Huang

et al. 2015

Aquacult Int

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A 10-week growth experiment was performed to determine the vitamin C requirement of adult genetically improved farmed tilapia (GIFT), Oreochromis niloticus. Fish with an initial body weight of 220.06 ± 6.10 g were cultured in cages (20 fish per cage) and fed semi-purified diets containing different levels of vitamin C: 10.22 (control diet), 27.81, 48.49, 95.79, 187.66, and 382.54 mg vitamin C kg -1 . L-gulonolactone oxidase (GLO) was not detected in kidney or liver of tilapia. The weight gain (WG) of the 48.49, 95.79, 187.66, and 382.54 mg kg -1 groups was significantly higher than that of the control group. Feed efficiency and body composition of tilapia were not significantly different among the groups (P [ 0.05). The vitamin C contents in liver and muscle increased at the beginning and reached a plateau at C187.66 mg kg -1 . Regression analyses revealed that the vitamin C requirement of adult GIFT is 53.05, 180.53, and 185.86 mg kg -1 based on WG, hepatic, and muscle vitamin C content, respectively.

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“…In addition, a negative feedback of ascorbic acid intake on the synthesis of GULO has been reported in mouse [51]. Although Moreau et al [52] reported that Chondrostei fish showed unchanged Gulo activity with increasing dietary ascorbic acid, the slow rate of ascorbic acid synthesis in poikilotherms may account for this observation. Subsequently, Moreau and Dabrowski [53] reported that an increase in dietary levels of α-tocopherol and/or ascorbic acid significantly raised the concentrations of these two antioxidants in the liver, and concomitantly lowered the Gulo activity in the kidney, of the white sturgeon Acipenser transmontanus .…”

Section: Discussionmentioning

confidence: 99%

Ascorbic Acid Biosynthesis and Brackish Water Acclimation in the Euryhaline Freshwater White-Rimmed Stingray, Himantura signifer

et al. 2013

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L-gulono-γ-lactone oxidase (Gulo) catalyzes the last step of ascorbic acid biosynthesis, which occurs in the kidney of elasmobranchs. This study aimed to clone and sequence gulonolactone oxidase (gulo) from the kidney of the euryhaline freshwater stingray, Himantura signifer, and to determine the effects of acclimation from freshwater to brackish water (salinity 20) on its renal gulo mRNA expression and Gulo activity. We also examined the effects of brackish water acclimation on concentrations of ascorbate, dehydroascorbate and ascorbate + dehydroascorbate in the kidney, brain and gill. The complete cDNA coding sequence of gulo from the kidney of H. signifer contained 1323 bp coding for 440 amino acids. The expression of gulo was kidney-specific, and renal gulo expression decreased significantly by 67% and 50% in fish acclimated to brackish water for 1 day and 6 days, respectively. There was also a significant decrease in renal Gulo activity after 6 days of acclimation to brackish water. Hence, brackish water acclimation led to a decrease in the ascorbic acid synthetic capacity in the kidney of H. signifer. However, there were significant increases in concentrations of ascorbate and ascorbate + dehydroascorbate in the gills (after 1 or 6 days), and a significant increase in the concentration of ascorbate and a significant decrease in the concentration of dehydroascorbate in the brain (after 1 day) of fish acclimated to brackish water. Taken together, our results indicate that H. signifer might experience greater salinity-induced oxidative stress in freshwater than in brackish water, possibly related to its short history of freshwater invasion. These results also suggest for the first time a possible relationship between the successful invasion of the freshwater environment by some euryhaline marine elasmobranchs and the ability of these elasmobranchs to increase the capacity of ascorbic acid synthesis in response to hyposalinity stress.

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Renal l-gulono-1,4-lactone oxidase activity as affected by dietary ascorbic acid in lake sturgeon (Acipenser fulvescens)

Cited by 31 publications

References 37 publications

Production and Enrichment of Chironomid Larva with Different Levels of Vitamin C and Effects on Performance of Persian Sturgeon Larvae

Production and Enrichment of Chironomid Larva with Different Levels of Vitamin C and Effects on Performance of Persian Sturgeon Larvae

Vitamin C requirement of adult genetically improved farmed tilapia, Oreochromis niloticus

Ascorbic Acid Biosynthesis and Brackish Water Acclimation in the Euryhaline Freshwater White-Rimmed Stingray, Himantura signifer

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