Investigations on the origin and metabolism of the carbon skeleton of ornithine, arginine and proline in selected animals

Hird, F. J. R.; Cianciosi, S; McLean, R.M.

doi:10.1016/0305-0491(86)90350-0

Cited by 12 publications

(14 citation statements)

References 13 publications

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“…The role of certain FAA in energy metabolism is well established in invertebrates, like arginine in crustaceans (Beis & Newsholme, 1975;Hird et al, 1986) and proline in cephalopods (Hochachka & Fields, 1982;Hochachka et al, 1983). However, there is few information regarding possible roles of other FAA in energy metabolism.…”

Section: Discussionmentioning

confidence: 97%

Seasonal patterns of nucleic acid concentrations and amino acid profiles of Parapenaeus longirostris (Crustacea, Decapoda): relation to growth and nutritional condition

Rosa

Nunes

2005

Hydrobiologia

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The present work describes the seasonal changes in nucleic acid concentrations and amino acid profiles in the muscle of juvenile Parapenaeus longirostris and their relation to growth and nutritional condition. RNA content varied significantly between seasons, being the highest values attained in spring and the lowest in winter (p < 0.05). Similar results were obtained with RNA:protein and RNA:DNA ratios. In respect to total amino acid content (TAA), a significant increase from winter to spring was observed (p < 0.05) and the major essential amino acids (EAA) were arginine, histidine and leucine. Within non-essential amino acids (NEAA) glutamic acid, aspartic acid, glycine and proline were dominant. From winter to spring, a significant variation in NEAA content occurred (26.8%; p < 0.05), mainly due to the significant increase of glutamic acid (79.1 %) and serine (66.7%) (p < 0.05). EAA content did not vary significantly between seasons (p > 0.05). In opposition, during this period a significant decrease in the free amino acid content (FAA) was observed (p < 0.05); a higher percentage of decrease was attained in free non-essential (FNEAA -42.9%) in comparison to free essential amino acids (FEAA -40.2%). The significant increase in RNA and TAA contents from winter to spring may be related with protein synthesis. On the other hand, the lowest values obtained in winter may be due to a reduction in feeding activity; in this period the muscle protein must be progressively hydrolysed, which is evident with the higher FAA content. The liberated amino acids enter FAA pool and become available for energy production. In conclusion, it was evident that the seasonal cycle in activities such as feeding and growth with nucleic acids and amino acid analyses was noticed.

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Section: Discussionmentioning

confidence: 97%

Seasonal patterns of nucleic acid concentrations and amino acid profiles of Parapenaeus longirostris (Crustacea, Decapoda): relation to growth and nutritional condition

Rosa

Nunes

2005

Hydrobiologia

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“…Given a choice, crayfish have the capability of selectively feeding on and utilizing food items that are both nutritious and essential for growth. Furthermore, Hird et al (1986) and Head and Baldwin (1986) identified arginine phosphate as a high-energy compound in the muscle of crayfish. Guizani et al (1992) have demonstrated that crayfish heptopancreas produces a trypsin-like.…”

Section: Fedmentioning

confidence: 98%

Redefining the role of crayfish in aquatic ecosystems

Momot

1995

Reviews in Fisheries Science

432

289

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“…Carbamoyl phosphate synthetase and ornithine transcarbamoylase from urea cycle enzymes were shown to be absent in crustaceans (Hird et al, 1986). In addition, crustaceans do not only have an active arginase enzyme but also the enzymic capacity to convert ornithine (the second reaction product of arginine hydrolysis) to proline (Hird et al, 1986;Sisini et al, 1981).…”

Section: Discussionmentioning

confidence: 99%

“…In addition, crustaceans do not only have an active arginase enzyme but also the enzymic capacity to convert ornithine (the second reaction product of arginine hydrolysis) to proline (Hird et al, 1986;Sisini et al, 1981). Proline is a fundamental structural element of collagen.…”

Section: Discussionmentioning

confidence: 99%

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Benzer¹,

Özçelik²,

Yıldırım³

2016

Turk. J. Fish. Aquat. Sci.

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The effects of dietary antioxidants (vitamine E, vitamine C, Astaxhantin, β carotene) on arginase activity and nitric oxide levels of hepatopancreas and muscle of freshwater crayfish (Actacus leptodactylus) were investigated during moulting.150 mg kg -1 vitamine E (VE), 200 mg kg -1 vitamine C (VC), 200 mg kg -1 Astaxhantin and 200 mg kg -1 β carotene were added to experimental diets. A. leptodactylus with these diets were fed with 2% of their total weight daily, in a day during 75 days. Arginase activity was increased in muscle of crayfish fed the diets VC, VE, astaxanthin and β karoten but in hepatopancreas arginase activity was increased with β carotene when compared to control. NO levels in muscle were decreased when compared to control but this decrease was not statically significant. NO levels in hepatopancreas of crayfish fed the diets VC and astaxanthin were higher than control groups. Our results demonstrated that dietary antioxidants affect the arginase activity and nitric oxide level of freshwater crayfish (Astacus leptodactylus, Esch. 1823) during moulting. A. leptodactylus 75 gün boyunca bu diyetler ile toplam ağırlığının 2% oranında beslendi. Kontrol ile kıyaslandığında Arjinaz aktivitesi kerevit kasında VC, VE, astaxanthin ve β karoten ile artmıştır ancak hepatopankreasda arjinaz aktivitesi β karotene ile artmıştır. Kas NO seviyeleri kontrolle kıyaslandığında azalmıştır ama bu azalış istatistiksel olarak önemli değildir. VC ve astaxanthin ile beslenen kerevit hepatopankreasından NO düzeyleri kontrol gruplarına göre daha yüksek bulunmuştur. Sonuçlarımız diyetsel antioksidanların kerevitlerin kabuk değiştirme döneminde arjinaz aktiviteleri ve NO düzeylerini değiştirdiğini kanıtlamıştır.

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Investigations on the origin and metabolism of the carbon skeleton of ornithine, arginine and proline in selected animals

Cited by 12 publications

References 13 publications

Seasonal patterns of nucleic acid concentrations and amino acid profiles of Parapenaeus longirostris (Crustacea, Decapoda): relation to growth and nutritional condition

Seasonal patterns of nucleic acid concentrations and amino acid profiles of Parapenaeus longirostris (Crustacea, Decapoda): relation to growth and nutritional condition

Redefining the role of crayfish in aquatic ecosystems

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