Fatty acids from 11 marine macroalgae of the French Brittany coast

Fleurence, Joël; Gutbier, Geneviève; Mabeau, S.; Leray, Claude

doi:10.1007/bf02182406

Cited by 166 publications

(160 citation statements)

References 13 publications

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“…The main fatty acids were palmitic, palmitoleic, oleic, arachidonic and eicosapentaenoic acids as previously reported (Ackman and McLachlan, 1977;Pohl and Zurheide, 1979;Harwood et al, 1988;Pettit et al, 1989a). Contrary to this study Fleurence et al (1994) reported higher amounts of arachidonic acid in this species than eicosapentaenoic acid. It seems that the proportion of these two fatty acids in a given species is negative.…”

Section: Discussioncontrasting

confidence: 99%

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Fatty acid and sterol composition of gametophytes and sporophytes of <i>Chondrus crispus</i> (Gigartinaceae, Rhodophyta)

Tasende¹

2000

Sci. Mar.

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SUMMARY: Fatty acids and sterols of gametophytes and sporophytes of Chondrus crispus were isolated and identified. Although chemical variation in the proportions of other natural compounds (eg. different carrageenan type) between gametophytes and sporophytes has already been observed, this is the first comparative study of the lipid composition in both generations. The content of fatty acids and sterols in gametophytes (0.710 and 0.190 mg g -1 dry weight respectively) was higher than in sporophytes (0.622 and 0.113 mg g -1 dry weight). The main fatty acids were palmitic, palmitoleic, oleic, arachidonic and eicosapentaenoic acids. These five fatty acids represented more than 78% of the all fatty acid composition in both generations. In addition unsaturated fatty acids were present in a much greater quantity (>80%) than saturated fatty acids. However, differences in the distribution of fatty acids between the two generations were observed. Gametophytes demonstrated higher amounts of monounsaturated fatty acids while sporophytes had a relatively higher content of saturated and polyunsaturated fatty acids. The major sterol in both generations was cholesterol (>94%). Differences were also observed in the sterol distribution between gametophytes and sporophytes, the former containing smaller amounts of 7-dehydrocholesterol and stigmasterol, while the latter had smaller amounts of 22-dehydrocholesterol, campesterol and sitosterol. Gametophytes were lacking 24-methylenecholesterol. Fatty acids and sterol of algal class, families and sometimes even species are characteristic to those particular taxa, and could be useful as chemotaxonomic markers. The results of this study showed that intra-specific variation in algae can be occured.

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Section: Discussioncontrasting

confidence: 99%

“…Rhodophyta are characterized by a high content of C 20 polyunsaturated fatty acids, mainly arachidonic (20:4 n-6) and eicosapentaenoic (20:5 n-3) acids (Ackman and McLachlan, 1977;Pohl and Zurheide, 1979;Fleurence et al, 1994). Other abundant fatty acids in this class are palmitic (16:0) and oleic (18:1) acids.…”

Section: Introductionmentioning

confidence: 99%

Fatty acid and sterol composition of gametophytes and sporophytes of <i>Chondrus crispus</i> (Gigartinaceae, Rhodophyta)

Tasende¹

2000

Sci. Mar.

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“…The fatty acid profile of L. saccharina is rich in 18:1(n-9), 18:4(n-3), 20:4(n-6) and 20:5(n-3) (Fleurence et al 1994, Mai et al 1996. The subtidal populations of urchins at both locations had higher values of 18:1(n-9), 20:4(n-6) and 20:5(n-3), indicating that L. saccharina may be an important component of the subtidal diet.…”

Section: Fatty Acid Analysismentioning

confidence: 99%

Gonad fatty acids and trophic interactions of the echinoid Psammechinus miliaris

Hughes¹,

Catarino²,

Kelly³

et al. 2005

Mar. Ecol. Prog. Ser.

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Variation in gonadal somatic indices (GSI) and fatty acid signatures of 2 contrasting Scottish west coast populations of the echinoid Psammechinus miliaris were examined. P. miliaris was sampled from both the shallow subtidal and at the upper limit of its distribution in the intertidal. The intertidal population had a significantly higher GSI than the subtidal at both locations. Multivariate analysis (ANOSIM) of the fatty acid signature showed significant variation between the 2 depths as well as between sex and location. SIMPER analysis indicated a complex pattern of variation between location and depths. Both 20:4(n-6) and 20:5(n-6), associated with brown algae, were found in higher levels in subtidal populations, while levels of 22:6(n-3) were higher in the intertidal at one site, and 18:4(n-3) higher at the other. Of these acids, 22:6(n-3) is associated with filter feeding invertebrates, and 18:4(n-3) with green algae. Omnivorous diets in urchins have been associated with increased gonadal growth and the results from this study strongly suggest that the observed differences in GSI between intertidal and subtidal P. miliaris result from a higher quality diet in the intertidal, consisting of invertebrates and green algae.

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“…This fatty acid certainly originates from macroalgae (M. Graeve, unpublished work) and is incorporated unmodi®ed in the lipids of the amphipod. 20:5(n-3) is another major fatty acid in macroalgae but 22:6(n-3) occurs only in trace amounts (Fleurence et al 1994;Khotimchenko 1995). 20:4(n-6) has obviously replaced the 22:6(n-3) not only in the depot lipids but also in the phospholipids where it probably becomes part of the membrane structure.…”

Section: Discussionmentioning

confidence: 99%

“…20:4(n-6) has obviously replaced the 22:6(n-3) not only in the depot lipids but also in the phospholipids where it probably becomes part of the membrane structure. It is known that (n-6) polyunsaturated fatty acids originate from benthic algae and some of the benthic invertebrates including molluscs, coelenterates, echinoderms and crustaceans contain substantial quantities of (n-6) polyunsaturated fatty acids, especially 20:4(n-6) (Sargent and Whittle 1981;Fleurence et al 1994;Khotimchenko 1995;M. Graeve, unpublished work).…”

Section: Discussionmentioning

confidence: 99%

Combined lipid, fatty acid and digestive tract content analyses: a penetrating approach to estimate feeding modes of Antarctic amphipods

2001

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Antarctic amphipods from the Weddell Sea and Brans®eld Strait were collected to investigate the impact of various species and feeding types on lipid and fatty acid compositions. In combination with digestive tract content analyses, such information can help clarify the type of feeding mode of the various amphipod species. Micro-and macropredatory amphipod species had only small amounts of triacylglycerols as storage lipids, whereas the deposit-feeder

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Fatty acids from 11 marine macroalgae of the French Brittany coast

Cited by 166 publications

References 13 publications

Fatty acid and sterol composition of gametophytes and sporophytes of <i>Chondrus crispus</i> (Gigartinaceae, Rhodophyta)

Fatty acid and sterol composition of gametophytes and sporophytes of <i>Chondrus crispus</i> (Gigartinaceae, Rhodophyta)

Gonad fatty acids and trophic interactions of the echinoid Psammechinus miliaris

Combined lipid, fatty acid and digestive tract content analyses: a penetrating approach to estimate feeding modes of Antarctic amphipods

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