Investigation of the seasonal variations of fatty acid constituents in selected tissues of the bivalve mollusc scapharca inaequivalvis (bruguiere)

Piretti, Marco Vincenzo; Zuppa, F.; Pagliuca, Giampiero; Taioli, F.

doi:10.1016/0305-0491(88)90281-7

Cited by 23 publications

(19 citation statements)

References 5 publications

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“…Studies of fatty acid composition of the two phospholipids phosphatidylcholine and phosphatidylethanolamine in eight species of marine invertebrates (Metridium senile fimbriatum, Chaetopterus variopedatus, Crenomytilus grayansu, Littorina squalida, Hernigrapsus sanguineus, Coptothyris grayi, Distolasterias nipon, Strongyloeentrotus intermedius) showed that in most cases the degree of unsaturation of fatty acids increased in winter (Naumenko and Kostetskii 1987). In the bivalve mollusc Seapharca inaequivalvis an increase in the unsaturated components was observed in cold months for fatty acids extracted from tissues of mantle, gill and foot plus digestive diverticula, with corresponding decreases occurring in hot E-L. E. Chu and J. Greaves: Fatty acid metabolism in Crassostrea months (Piretti et al 1988). The PUFA 22:60)3 of the membrane lipids in 11 deep-sea bacterial isolates was found to increase as a function of decreasing temperature at constant atmospheric pressure (DeLong and Yayanos 1986).…”

Section: Discussionmentioning

confidence: 96%

Metabolism of palmitic, linoleic, and linolenic acids in adult oysters,Crassostrea virginica

1991

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Abstract. This study investigated incorporation and metabolism of saturated [(1-~4C) 16:0] and unsaturated [(1-14C) 18:2co6 and (1-14C) 18:3o33] fatty acids in adult eastern oysters, Crassostrea virginica Gmelin (spawned from parents obtained in 1986 from Mobjack Bay, Virginia, USA), and the influence of temperature on these processes. In C. virginica, incorporation of injected palmitic (16:0) and linolenic (18:3033) acids was increased when oysters which had been grown in warm water (22 to 23 °C) were transfered to cold water (5 to 7 °C) for 8 to 18 d. Incorporation of linoleic acid (18:2036) was unchanged under these conditions. The changes in concentration may have been linked to depression of metabolism in these oysters, in particular that of 16:0, which was reduced by 90%. Oxidation of incorporated fatty acids was much higher in warm than in cold water.Cold-temperature conditioning of C. virginica altered the distribution of fatty acids among the neutral and polar lipid fractions. Long-term exposure to cold water increased the proportion Of fatty acids in the polar fraction, which may be related to maintenance of membrane fluidity. Short-term exposure to cold water had the opposite effect, which may be due to increased energy requirements as the oyster adapts to new conditions. Reutilization of ~4C-acyl groups demonstrated de novo synthesis of 16:0 and 18:0 fatty acids. Only limited elongation and no desaturation of the administered fatty acids was observed.

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Section: Discussionmentioning

confidence: 96%

Metabolism of palmitic, linoleic, and linolenic acids in adult oysters,Crassostrea virginica

1991

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“…The proportion of PUFA was higher for PL and PC in winter, for TAG in summer and for PE in autumn, whereas SFA were higher in summer than in other three seasons in TAG, PL and PC. Previous studies in fish and shellfish have reported that PUFA content varies inversely with the water temperature [21][22][23], while SFA content changes positively with the water temperature [13,24], and that the increased PUFA at colder temperature was mainly due to a higher proportion of n-3 PUFA [24][25][26], it has been suggested that an increase in membrane PUFA and a decrease in SFA when the temperature falls could contribute to the maintenance of cell membrane fluidity, as PUFA has a lower melting point than do SFA. It has also been suggested that increased unsaturated fatty acids (PUFA and MUFA) of non-membrane lipids such as TAG in the flesh would also be expected to help maintain body flexibility for movement at reduced temperatures [24].…”

Section: Lipidsmentioning

confidence: 99%

Seasonal Variations of Lipid Content and Composition in Perna viridis

Zhang

Sinclair

2007

Lipids

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The total lipid content, composition of main lipid classes, composition of sterols and composition of fatty acids in the main glycerolipids of Perna viridis were analyzed through four seasons using TLC-FID and GLC. Mussel samples were collected during different seasons between 2003 and 2004 from Shengsi Island, Zhejiang Province, China and stored frozen prior to freeze-drying and lipid extraction. Ten grams of dried mussel powder of each season were analyzed. Total lipid content ranged from 14.5 g/100 g in spring month to 7.8 g/100 g dried mussel powder in autumn month. The predominant lipid in spring month was triacylglycerol (TAG), however, in the other three seasons the phospholipids (PL) was the main lipid class. The most abundant fatty acid in TAG, PL and phosphatidylcholine (PC) was 16:0, with the summer samples having the highest proportion (24-30% of total fatty acid) and winter the lowest (14-22%). In phosphatidylethanolamine (PE), the spring samples had the highest proportions of 16:0. The predominant polyunsaturated fatty acids (PUFA) were 22:6n-3 and 20:5n-3 in TAG, PL, PE and PC (25-40%). The proportions of 22:6n-3 and 20:5n-3 were higher in spring than in other seasons in PL and PE. There were nine sterols identified, with cholesterol being the predominant sterol, and other main ones were desmostersol/brassicasterol and 24-methylenecholesterol. Proportions of other fatty acids in different lipid fractions and the sterol compositions as well also varied seasonally. There were subject to the seasonal variations. Differences in lipid content and composition, fatty acid composition in different lipid fractions may be caused by multiple factors such as lifecycle, sex, variation of plankton in different seasons and temperature, which could influence physiological activities and metabolism.

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“…Diplodom patagonicus [15], Diplodon delodontus [16], Carunculina texasensis [17], Dreissena polymorpha [18], Dreissena siouffi [19] and Unio elongatulus [20] are some of the studied freshwater mussels. Furthermore, their fatty acid compositions were studied only at restricted respects.…”

Section: Discussionmentioning

confidence: 99%

Fatty acid composition of lipid classes in two mussel populations (Anodonta piscinalis and Corbicula fluminalis) living in Tigris River

Ekin¹,

Başhan²,

Şeşen³

2012

Turk J Bioch

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Purpose: The aim of this work was to investigate quantitative and qualitative fatty acid composition of phospholipid, monoacylglycerol, diacylglycerol, triacylglycerol and total body lipid of two adult freshwater mussels, Anodonta piscinalis (Nilsson, 1822) and Corbicula fluminalis (Müller, 1774). Methods: Mussels' body lipids were fractionated by thin layer chromatography. Gas chromatography and gas chromatography-mass spectrometry instruments were used to detect the fatty acids. Results: C16:0, C18:0, C16:1ω7, C18:1ω9, C18:2ω6 and C20:4ω6 were the dominant fatty acids. Their total percentages are between 70.37% and 82.11% in A. piscinalis and between 66.70% and 75.53% in C. fluminalis. As characteristic to freshwater mussels, Σω6 / Σω3 ratio was defined high in all lipid fractions. In both of the mussels, the maximum level of total polyunsaturated fatty acids was found in the phospholipids, and the maximum level of the total saturated fatty acids was found in the monoacylglycerol fractions. However, the level total monounsaturated fatty acids showed differentiations among fractions. In comparison to other fractions, the phospholipid contained high amount of C20:4ω6 and C20:5ω3, involved in eicosanoids formation. Conclusion:The study provided insight into the biochemistry and nutritional value of the widely distributed freshwater mussels from Tigris River. Key words: fatty acids, Anodonta piscinalis, Corbicula fluminalis, freshwater mussel, Tigris River Conflict of interest: Authors have no conflict of interest. ÖZETAmaç: Bu çalışmanın amacı, tatlısu midyesi Anodonta piscinalis (Nilsson, 1822) ve Corbicula fluminalis (Müller, 1774)'in fosfolipit, monoaçilgliserol, diaçilgliserol, triaçilgliserol ve total vücut lipidinin yağ asidi içeriğini kalitatif ve kantitatif olarak araştırmaktır. Metotlar: Midyelerin total vücut lipitleri, ince tabaka kromatografi ile fraksiyonlandı. Yağ asidi içeriği, gaz kromatografi ve gaz kromatografi-kütle spektrometre cihazları kullanılarak tespit edildi. Bulgular: C16:0, C18:0, C16:1ω7, C18:1ω9, C18:2ω6 ve C20:4ω6 asitler çoğunlukta bulunan bileşenlerdi. Toplam oranları A. piscinalis'te %70.37 ve %82.11 arasında; C. fluminalis'te ise %66.70 ve %75.53 arasında değişti. Tatlısu midyelerine özgü olduğu gibi, Σω6 / Σω3 değeri tüm fraksiyonlarda yüksek miktarda bulundu. Her iki midye türünde de en yüksek total çoklu doymamış yağ asidi oranı, fosfolipitte; en yüksek total doymuş yağ asidi oranı ise monoaçilgliserolda saptandı. Total tekli doymamış yağ asidi oranı ise fraksiyonlar arasında farklılık gösterdi. Diğer fraksiyonlar ile kıyaslanınca, fosfolipit fraksiyonunda eikosanoidlerin yapımında görev alan C20:4ω6 ve C20:5ω3 asitler daha yüksek oranda bulundu. Sonuç: Çalışma, Dicle Nehri'nde geniş dağılış gösteren tatlısu midyelerinin besinsel ve biyokimyasal özelliklerine ait bilgiler sağlamıştır. Anahtar kelimeler: yağ asitleri, Anodonta piscinalis, Corbicula fluminalis, tatlısu midyesi, Dicle Nehri Çıkar çatışması: Yazarların çıkar çatışması yoktur.

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Investigation of the seasonal variations of fatty acid constituents in selected tissues of the bivalve mollusc scapharca inaequivalvis (bruguiere)

Cited by 23 publications

References 5 publications

Metabolism of palmitic, linoleic, and linolenic acids in adult oysters,Crassostrea virginica

Metabolism of palmitic, linoleic, and linolenic acids in adult oysters,Crassostrea virginica

Seasonal Variations of Lipid Content and Composition in Perna viridis

Fatty acid composition of lipid classes in two mussel populations (Anodonta piscinalis and Corbicula fluminalis) living in Tigris River

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