Distribution of betaine lipids in marine algae

Kato, Masaaki; Sakai, Miho; Adachi, Kyoko; Ikemoto, Hisato; Sano, Hiroshi

doi:10.1016/0031-9422(96)00115-x

Cited by 111 publications

(116 citation statements)

References 16 publications

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“…Although it is difficult to compare fatty acids profile of microalgae between studies due to the influence of culture conditions, comparable fatty acid profiles were reported for D. tertiolecta (Liu et al, 2007;Mendoza Guzman et al, 2011), T. suecica (Gonzales-Arays et al, 2011;Mendoza Guzman et al, 2011), and P. carterae (Kato et al, 1996).…”

Section: Larval Development and Fatty Acid Compositionmentioning

confidence: 81%

Effects of dietary microalgae on growth, survival and fatty acid composition of sea urchin Paracentrotus lividus throughout larval development

et al. 2012

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This study investigated the growth, survival and fatty acid composition of sea urchin Paracentrotus lividus larvae fed four microalgal diets: Cricosphaera elongata, Pleurochrysis carterae, Tetraselmis suecica and Dunaliella tertiolecta (control). Larvae were successfully raised to competence for metamorphosis when fed C. elongata, P. carterae and D. tertiolecta diets but significant differences were found in survival rate and development. Larvae fed C. elongata showed 3 times higher survival and 20 % faster development than larvae fed the other two microalgae diets that supported development. In contrast, T. suecica failed to fully support development and larvae stalled at the four arms stage for more than 30 days. The urchin larvae could accumulate long-chain polyunsaturated fatty acids (LC-PUFA) such as docosahexaenoate (DHA; 22:6n-3), eicosapentaenoate (EPA; 20:5n-3) and arachidonate (ARA; 20:4n-6), either by assimilation and retention of dietary fatty acids, and/or synthesis from α-linolenic acid 18:3n-3 and linoleic acid 18:2n-6. Moreover, an accumulation of n-3 LC-PUFA and higher EPA/DHA and EPA/ARA ratios appeared to be associated with improved larval performance. The results indicate that live microalgae species, with appropriate fatty acid profiles are able to improve P. lividus larval performance, ultimately increasing hatchery profitability.

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Section: Larval Development and Fatty Acid Compositionmentioning

confidence: 81%

Effects of dietary microalgae on growth, survival and fatty acid composition of sea urchin Paracentrotus lividus throughout larval development

et al. 2012

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“…Though principal component analysis is a useful tool for indicating potential connections it cannot determine if community or physiology are causal in the variability of IP-DAGs. The variation of IP-DAGs with different microbial groups has been well studied in cultures (Oliver and Colwell, 1973;Guschina and Harwood, 2006;Kato et al, 1996;Van Mooy et al, 2006), and some work has also been done measuring the diversity of IP-DAGs in microbial groups from environmental samples (Popendorf et al, 2011). The physiological response has also been well studied in monocultures (Benning et al, 1993(Benning et al, , 1995Martin et al, 2011;Van Mooy et al, 2009), however it remains to be shown whether the influence of changes in physiology can be detected in changes in IP-DAGs in a natural, mixed planktonic community.…”

Section: Factors Influencing Ip-dag Ratiosmentioning

confidence: 99%

Gradients in intact polar diacylglycerolipids across the Mediterranean Sea are related to phosphate availability

Popendorf

Tanaka²,

Pujo‐Pay³

et al. 2011

Biogeosciences

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Abstract. Intact polar membrane lipids compose a significant fraction of cellular material in plankton and their synthesis imposes a substantial constraint on planktonic nutrient requirements. As a part of the Biogeochemistry from the Oligotrophic to the Ultraoligotrophic Mediterranean (BOUM) cruise we examined the distribution of several classes of intact polar diacylglycerolipids (IP-DAGs) across the Mediterranean, and found that phospholipid concentration as a percent of total lipids correlated with phosphate concentration. In addition, the ratios of non-phosphorus lipids to phospholipids -sulfoquinovosyldiacylglycerol (SQDG) to phosphatidylglycerol (PG), and betaine lipids to phosphatidylcholine (PC) -were also found to increase from west to east across the Mediterranean. Additionally, microcosm incubations from across the Mediterranean were amended with phosphate and ammonium, and in the course of several days nutrient amendments elicited a shift in the ratios of IP-DAGs. These experiments were used to assess the relative contribution of community shifts and physiological response to the observed change in IP-DAGs across the Mediterranean. TheCorrespondence to: K. J. Popendorf (kpopendorf@whoi.edu) ratio of SQDG to chlorophyll-a was also explored as an indicator of phytoplankton response to nitrogen availability. This study is the first to demonstrate the dynamic response of membrane lipid composition to changes in nutrients in a natural, mixed planktonic community.

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“…Although it is not a phospholipid, DGTS appears to replace phosphatidylcholine (PtdCho) in C. reinhardtii; PtdCho has been reported not to occur in this organism (Giroud et al, 1988). This situation is not unusual, however, because DGTS is widely distributed, occurring in pteridophytes, bryophytes, and many algae (Sato, 1992;Eichenberger, 1993;Dembitsky, 1996;Kato et al, 1996), where its concentrations relative to PtdCho generally are inversely proportional. DGTS substitutes for PtdCho more completely than simply as a membrane component of these organisms because it has been demonstrated that oleic acid esterified to DGTS might be desaturated to linoleic acid and an isomer of linolenic acid in C. reinhardtii (Schlapfer and Eichenberger, 1983;Giroud and Eichenberger, 1989).…”

Section: Diacylglyceryltrimethylhomo-ser [Dgts; Diacylglyceryl-o-4ј-(mentioning

confidence: 99%

Membrane Lipid Biosynthesis in Chlamydomonas reinhardtii. In Vitro Biosynthesis of Diacylglyceryltrimethylhomoserine

Moore

Chen

2001

Plant Physiology

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Diacylglyceryltrimethylhomo-Ser (DGTS) is an abundant lipid in the membranes of many algae, lower plants, and fungi. It commonly has an inverse concentration relationship with phosphatidylcholine, thus seemingly capable of replacing this phospholipid in these organisms. In some places this replacement is complete; Chlamydomonas reinhardtii is such an organism, and was used for these investigations. We have assayed headgroup incorporation to form DGTS in vitro. The precursor for both the homo-Ser moiety and the methyl groups was found to be S-adenosyl-L-Met. DGTS formation was associated with microsomal fractions and is not in plastids. By analogy with phosphatidylcholine and phosphatidylethanolamine biosynthesis in higher plants, the microsomal activity probably is associated with the endoplasmic reticulum. The pH optimum for the total reaction was between 7.5 and 8.0, and the best temperature was 30°C. The apparent K m and V max for S-adenosyl-L-Met in the overall reaction were 74 and 250 m, respectively.

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Distribution of betaine lipids in marine algae

Cited by 111 publications

References 16 publications

Effects of dietary microalgae on growth, survival and fatty acid composition of sea urchin Paracentrotus lividus throughout larval development

Effects of dietary microalgae on growth, survival and fatty acid composition of sea urchin Paracentrotus lividus throughout larval development

Gradients in intact polar diacylglycerolipids across the Mediterranean Sea are related to phosphate availability

Membrane Lipid Biosynthesis in Chlamydomonas reinhardtii. In Vitro Biosynthesis of Diacylglyceryltrimethylhomoserine

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