Comparison of the fatty acids of the tunicate<i>Botryllus schlosseri</i> from the Black Sea with two associated bacterial strains

Carballeira, Néstor M.; Shalabi, Fathi; Stefanov, Kamen; Dimitrov, K.; Попов, Симеон; Kujumgiev, A; Andreev, Stoitze

doi:10.1007/bf02537006

Cited by 20 publications

(14 citation statements)

References 7 publications

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“…Surprisingly, the 22:6n-3 acid (DHA) was found at low levels in this study and not recorded in C. violatinctus and E. bituminis [21], whereas it was found in high levels in other tunicates, such as B. schlosseri (15.5%, [22], H. aurantium (up to 32%, [24]) and H. roretzi (13-20%, [23]. Striking results of this study were the unexpected proportion of the 20:5n-3 acid (EPA) in L. uniorbis (16.7%) and the occurrence of the 18:4n-3 acid (4.1%) inducing interesting potentialities for this species.…”

Section: Discussioncontrasting

confidence: 78%

“…The FA composition of polar lipids from benthic ascidians was reported [20,21]. The FA composition of the tunicate Botryllus schlosseri was compared with those of two associated bacterial strains [22]. High levels of EPA (up to 25% of total FA mixture) and DHA (up to 20%) were reported from total lipids, neutral lipids and polar lipids of the edible tunicate H. roretzi [23].…”

Section: Introductionmentioning

confidence: 98%

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Phospholipid Distribution and Phospholipid Fatty Acids of the Tropical Tunicates Eudistoma sp. and Leptoclinides uniorbis

Dagorn

Dumay

Wielgosz‐Collin

et al. 2010

Lipids

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Two tunicates, Eudistoma sp. and Leptoclinides uniorbis, collected from the tropical waters off Djibouti were investigated for lipids and phospholipid (PL) fatty acids. PL accounted for 38.2% of the total lipids in Eudistoma sp. and for 30.2% in L. uniorbis. PL classes were quantified by normal-phase high-performance liquid chromatography using an evaporative light-scattering detector and revealed essential differences. Eudistoma sp. contained mainly phosphatidylcholine (PC, 70.3% of total PL) and lysophosphatidylcholine (LPC, 11.9%) and was devoid of phosphatidylserine (PS), whereas the major PL of L. uniorbis was PS (59.1%) followed by PC (22.5%) and LPC (8.8%). Gas chromatography-mass spectrometry analyses of fatty acid (FA) derivatives revealed 38 FA in Eudistoma sp., and 35 FA in L. uniorbis, ranged from C(12) to C(24) chain lengths. Polyunsaturated FA accounted for 25.9% in Eudistoma sp. and for 32.3% in L. uniorbis. Interestingly, L. uniorbis contained a high percentage (16.7%) of the 20:5n-3 acid (8.9% in Eudistoma sp.) and the 18:4n-3 acid (4.1%). Significant levels of the 20:4n-6 acid were observed in both organisms (7.8 and 6.0% respectively). Eudistoma sp. contained the rare 20:3n-7 acid (2.3%) only recorded to date in hydrothermal vent animals. The cyclopropane dihydrosterculic acid was identified in both tunicates (0.7 and 0.5% respectively). These latter FA, together with some unusual branched saturated and monounsaturated FA, revealed the occurrence of associated bacteria in the tunicates. Another noticeable feature was a series of eight C(16) to C(18) aldehyde dimethylacetals revealing the presence of plasmalogens at 5.0% in Eudistoma sp. and 14.2% in L. uniorbis. The results of this study were compared with those previously published for other tunicates regarding mainly PL content and FA composition.

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Section: Discussioncontrasting

confidence: 78%

Section: Introductionmentioning

confidence: 98%

Phospholipid Distribution and Phospholipid Fatty Acids of the Tropical Tunicates Eudistoma sp. and Leptoclinides uniorbis

Dagorn

Dumay

Wielgosz‐Collin

et al. 2010

Lipids

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“…1 Mass spectra of the pyrrolidide derivatives of 7,13-21:2 elevated level of 20:4n-6 was also found in two snails, Littorina littorea and Lunatia triseriata, (up to 8% of the total FA), but it was lower than that of 20:5n-3 [2,21]. A prevalence of n-6 PUFA over n-3 was found in the asteroids [25] and in the PL of gorgonian corals [26], but the amounts of n-3 PUFA were also abundant.…”

Section: Discussionmentioning

confidence: 84%

Lipid Classes and Fatty Acid Composition of the Tropical Nudibranch Mollusks Chromodoris sp. and Phyllidia coelestis

Zhukova

2007

Lipids

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Two nudibranch mollusks, Chromodoris sp. and Phyllidia coelestis, collected from tropical waters of the Northwestern Pacific, were analyzed for lipids. The aim of this study was to fill the gap in knowledge of lipid biochemistry of mollusks. Phospholipids (PL) were the dominating lipid class followed by sterols (13%). Neutral lipids were not detected in Chromodoris sp. By contrast, P. coelestis contained TAG, diacylglyceryl ether, long chain alcohol and esters of sterols. Among PL, PC was predominant (about 50%); PE, PS and CAEP were almost in equal proportions. Sixty five FA were identified as methyl esters and N-acyl pyrrolidides by GC-MS. The sea slugs exhibited a wide diversity of FA. The common marine n-3 PUFA, 20:5n-6 and 22:6n-3, constituted 0.6-1.3% of the total FA, whereas n-6 PUFA, 22:4n-6, 20:4n-6, and 18:2n-6, were the main (25%). Among monounsaturated FA, 7-21:1 was the main (up to 6.2%). The non-methylene-interrupted (NMI) FA were found (9.4 and 12.4%), including the known 5,11-20:2, 5,13-20:2, 7,13-22:2, 7,15-22:2 and a novel isomer 7,13-21:2 (up to 3.9%). The pathway of its biosynthesis was suggested. A series of very long chain FA (VLC FA), with the main 5,9-25:2 and 5,9-26:2, were identified. High level of VLC FA (8.7 and 11.7%) in sea slugs is apparently the result of predation on sponges. Another unique feature concerned a high abundance of various odd and branched FA (16.7 and 34%), which could have originated from the dietary origin or symbiotic bacteria. This is the first report on lipid and FA composition of nudibranchs.

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“…of the studies cited in Section D.3 above. Similarly, DMOX derivatives have been employed for animal [44,133,134,163,207,227], plant [88,186,187,189,190,194,229,236] and marine [91,123,227] samples. Similarly, DMOX derivatives have been employed for animal [44,133,134,163,207,227], plant [88,186,187,189,190,194,229,236] and marine [91,123,227] samples.…”

Section: Unsaturated Fatty Acidsmentioning

confidence: 99%

Structural Analysis of Fatty Acids

Christie

2012

Advances in Lipid Methodology

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Comparison of the fatty acids of the tunicateBotryllus schlosseri from the Black Sea with two associated bacterial strains

Cited by 20 publications

References 7 publications

Phospholipid Distribution and Phospholipid Fatty Acids of the Tropical Tunicates Eudistoma sp. and Leptoclinides uniorbis

Phospholipid Distribution and Phospholipid Fatty Acids of the Tropical Tunicates Eudistoma sp. and Leptoclinides uniorbis

Lipid Classes and Fatty Acid Composition of the Tropical Nudibranch Mollusks Chromodoris sp. and Phyllidia coelestis

Structural Analysis of Fatty Acids

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