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Relevant bibliographies by topics / Intact polar lipids

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Academic literature on the topic 'Intact polar lipids'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Intact polar lipids"

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Warren, Charles R. "Altitudinal transects reveal large differences in intact lipid composition among soils." Soil Research 59, no. 6 (2021): 644. http://dx.doi.org/10.1071/sr20055.

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Fatty acid-based lipids comprise a small but important component of soil organic matter. Lipids are indispensable components of soil microbes due to their function as components of membranes and as stores of energy and C. Hence, lipid composition is likely under strong selection pressure and there ought to be strong associations between lipid composition of microbial communities and environmental conditions. Associations between microbial lipids and environment likely involve an integrated combination of differences in lipid headgroups (classes) and fatty acyl chains. However, past studies exa

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Yoshinaga, Marcos Y., Matthias Y. Kellermann, Pamela E. Rossel, Florence Schubotz, Julius S. Lipp, and Kai-Uwe Hinrichs. "Systematic fragmentation patterns of archaeal intact polar lipids by HPLC-ESI-IT-MS." Rapid Communications in Mass Spectrometry 25 (November 8, 2011): 3563–74. https://doi.org/10.1002/rcm.5251.

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Archaea are ubiquitous and abundant microorganisms on Earth that mediate key global biogeochemical cycles. The headgroup attached to the <em>sn</em>-1 position in the glycerol backbone and the ether-linked isoprenoid lipids are among the diagnostic traits that distinguish Archaea from Bacteria and Eukarya. Over the last 30 years, numerous archaeal lipids were purified and described in pure cultures. Coupled high performance liquid chromatography (HPLC) ion trap mass spectrometry (ITMS) now enables the detection and rapid identification of intact polar lipids in relatively small samples, reveal

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Zhu, Chun, Julius S. Lipp, Lars Wörmer, Kevin B. Becker, Jan M. Schröder, and Kai-Uwe Hinrichs. "Comprehensive glycerol ether lipid fingerprints through a novel reversed phase liquid chromatography–mass spectrometry protocol." Organic Geochemistry 65 (October 3, 2013): 53–62. https://doi.org/10.1016/j.orggeochem.2013.09.012.

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Abstract Glycerol ether lipid distributions have been developed as proxies for reconstructing past environmental change or, in their intact polar form, for fingerprinting the viable microbial community composition. However, due to their structural complexity, full characterization of glycerol ether lipids requires separate protocols for the analysis of the polar head groups and the alkyl chain moieties in core ether lipids. As a consequence, the valuable relationship between core ether lipid composition and specific polar head groups is often lost; this limits understanding of the diversity of

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Wörmer, Lars, Julius S. Lipp, Jan M. Schröder, and Kai-Uwe Hinrichs. "Application of two new LC–ESI–MS methods for improved detection of intact polar lipids (IPLs) in environmental samples." Organic Geochemistry 59 (March 20, 2013): 10–21. https://doi.org/10.1016/j.orggeochem.2013.03.004.

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Abstract Intact polar lipid distributions have become a valuable tool for the study of microbial ecosystems. In order to expand the detection and interpretation of the presence of these lipids, improved analytical methods are needed. Therefore, two high pressure liquid chromatography–electrospray ionization tandem mass spectrometry (HPLC–ESI–MS<sup>2</sup>) methods, based on hydrophilic interaction chromatography (HILIC) and reversed phase (RP) chromatography were developed, taking advantage of new chromatographic possibilities such as smaller particle size and recently devel

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Coffinet, Sarah, Travis B. Meador, Lukas Mühlena, et al. "Structural elucidation and environmental distributions of butanetriol and pentanetriol dialkyl glycerol tetraethers (BDGTs and PDGTs)." Biogeosciences 17, no. 2 (2020): 317–30. http://dx.doi.org/10.5194/bg-17-317-2020.

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Abstract. Butanetriol and pentanetriol dialkyl glycerol tetraethers (BDGTs and PDGTs) are membrane lipids, recently discovered in sedimentary environments and in the methanogenic archaeon Methanomassiliicoccus luminyensis. They possess an unusual structure, which challenges fundamental assumptions in lipid biochemistry. Indeed, they bear a butanetriol or a pentanetriol backbone instead of a glycerol at one end of their core structure. In this study, we unambiguously located the additional methyl group of the BDGT compound on the C3 carbon of the lipid backbone via high-field nuclear magnetic r

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Liu, Xiao-Lei, Julius S. Lipp, Jeffrey H. Simpson, Yu-Shih Lin, Roger E. Summons, and Kai-Uwe Hinrichs. "Mono- and dihydroxyl glycerol dibiphytanyl glycerol tetraethers in marine sediments: Identification of both core and intact polar lipid forms." Geochimica et Cosmochimica Acta 89 (April 28, 2012): 102–15. https://doi.org/10.1016/j.gca.2012.04.053.

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Abstract Hydroxylated glycerol dialkyl glycerol tetraethers (hydroxy-GDGTs) were detected in marine sediments of diverse depositional regimes and ages. Mass spectrometric evidence, complemented by information gleaned from two-dimensional (2D) <sup>1</sup>H–<sup>13</sup>C nuclear magnetic resonance (NMR) spectroscopy on minute quantities of target analyte isolated from marine sediment, allowed us to identify one major compound as a monohydroxy-GDGT with acyclic biphytanyl moieties (OH-GDGT-0). NMR spectroscopic and mass spectrometric data indicate the presence of a tertiary hydroxyl group

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Schouten, Stefan, Ellen C. Hopmans, Marianne Baas, et al. "Intact Membrane Lipids of “Candidatus Nitrosopumilus maritimus,” a Cultivated Representative of the Cosmopolitan Mesophilic Group I Crenarchaeota." Applied and Environmental Microbiology 74, no. 8 (2008): 2433–40. http://dx.doi.org/10.1128/aem.01709-07.

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ABSTRACT In this study we analyzed the membrane lipid composition of “Candidatus Nitrosopumilus maritimus,” the only cultivated representative of the cosmopolitan group I crenarchaeota and the only mesophilic isolate of the phylum Crenarchaeota. The core lipids of “Ca. Nitrosopumilus maritimus” consisted of glycerol dialkyl glycerol tetraethers (GDGTs) with zero to four cyclopentyl moieties. Crenarchaeol, a unique GDGT containing a cyclohexyl moiety in addition to four cyclopentyl moieties, was the most abundant GDGT. This confirms unambiguously that crenarchaeol is synthesized by species belo

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Popendorf, K. J., T. Tanaka, M. Pujo-Pay, et al. "Gradients in intact polar diacylglycerolipids across the Mediterranean Sea are related to phosphate availability." Biogeosciences Discussions 8, no. 4 (2011): 7921–52. http://dx.doi.org/10.5194/bgd-8-7921-2011.

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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 Ultraoligtrophic 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 –

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Popendorf, K. J., T. Tanaka, M. Pujo-Pay, et al. "Gradients in intact polar diacylglycerolipids across the Mediterranean Sea are related to phosphate availability." Biogeosciences 8, no. 12 (2011): 3733–45. http://dx.doi.org/10.5194/bg-8-3733-2011.

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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 –

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Sinninghe Damsté, Jaap S., W. Irene C. Rijpstra, Ellen C. Hopmans, et al. "13,16-Dimethyl Octacosanedioic Acid (iso-Diabolic Acid), a Common Membrane-Spanning Lipid of Acidobacteria Subdivisions 1 and 3." Applied and Environmental Microbiology 77, no. 12 (2011): 4147–54. http://dx.doi.org/10.1128/aem.00466-11.

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ABSTRACTThe distribution of membrane lipids of 17 different strains representing 13 species of subdivisions 1 and 3 of the phylumAcidobacteria, a highly diverse phylum of theBacteria, were examined by hydrolysis and gas chromatography-mass spectrometry (MS) and by high-performance liquid chromatography-MS of intact polar lipids. Upon both acid and base hydrolyses of total cell material, the uncommon membrane-spanning lipid 13,16-dimethyl octacosanedioic acid (iso-diabolic acid) was released in substantial amounts (22 to 43% of the total fatty acids) from all of the acidobacteria studied. This

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Dissertations / Theses on the topic "Intact polar lipids"

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Schröder, Jan Martin [Verfasser], Kai-Uwe [Akademischer Betreuer] Hinrichs, and Matthias [Akademischer Betreuer] Zabel. "Intact polar lipids in marine sediments : improving analytical protocols and assessing planktonic and benthic sources / Jan Martin Schröder. Betreuer: Kai-Uwe Hinrichs. Gutachter: Kai-Uwe Hinrichs ; Matthias Zabel." Bremen : Staats- und Universitätsbibliothek Bremen, 2015. http://d-nb.info/1081765941/34.

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Logemann, Jörn Verfasser], Jürgen [Akademischer Betreuer] [Rullkötter, Heribert [Akademischer Betreuer] Cypionka, and Kai-Uwe [Akademischer Betreuer] Hinrichs. "Intakte polare Lipide: Möglichkeit und Grenzen ihrer Verwendung zur Analyse mikrobieller Gemeinschaften. / Jörn Logemann. Betreuer: Jürgen Rullkötter ; Heribert Cypionka ; Kai-Uwe Hinrichs." Oldenburg : BIS der Universität Oldenburg, 2013. http://d-nb.info/1048749401/34.

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Seidel, Michael [Verfasser]. "Intakte polare Membranlipide als Biomarker zur Charakterisierung mikrobieller Lebensgemeinschaften in Wattsedimenten = Intact polar membrane lipids as biomarkers for characterization of microbial communities in Wadden Sea sediments / von Michael Seidel." 2009. http://d-nb.info/996766103/34.

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Book chapters on the topic "Intact polar lipids"

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Karlsson, A. Å. "Analysis of intact polar lipids by high-pressure liquid chromatography—mass spectrometry/tandem mass spectrometry with use of thermospray or atmospheric pressure ionization." In Lipid Analysis in Oils and Fats. Springer US, 1998. http://dx.doi.org/10.1007/978-1-4613-1131-7_9.

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Sullivan, B. D., J. M. Cermak, R. M. Sullivan, et al. "Correlations between Nutrient Intake and the Polar Lipid Profiles of Meibomian Gland Secretions in Women with Sjögren’s Syndrome." In Advances in Experimental Medicine and Biology. Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0717-8_62.

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Malisch, Rainer, Alexander Schächtele, Ralf Lippold, et al. "Overall Conclusions and Key Messages of the WHO/UNEP-Coordinated Human Milk Studies on Persistent Organic Pollutants." In Persistent Organic Pollutants in Human Milk. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34087-1_16.

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AbstractBuilding on the two rounds of exposure studies with human milk coordinated by the World Health Organization (WHO) in the mid-1980s and 1990s on polychlorinated biphenyls (PCB), polychlorinated dibenzo-p-dioxins (PCDD), and polychlorinated dibenzofurans (PCDF), five expanded studies on persistent organic pollutants (POPs) were performed between 2000 and 2019. After the adoption of the Stockholm Convention on POPs (the Convention) in 2001, WHO and the United Nations Environment Programme (UNEP) collaborated in joint studies starting in 2004. The collaboration aimed at provision of POPs d

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Bianchi, Thomas S., and Elizabeth A. Canuel. "Lipids: Alkenones, Polar Lipids, and Ether Lipids." In Chemical Biomarkers in Aquatic Ecosystems. Princeton University Press, 2011. http://dx.doi.org/10.23943/princeton/9780691134147.003.0011.

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This chapter focuses on several classes of polar lipids, including alkenones, which are di-, tri-, and tetra-unsaturated long-chain ketones. These compounds are produced by a restricted number of species of prymnesiophyte algae (coccolithophorid alga Emiliania huxleyi), living over a wide temperature range. Prymnesiophytes are able to live under different temperature regimes because they are able to regulate the degree of unsaturation of these compounds; as ambient water temperature decreases, unsaturation increases. Long-chain ketones are more stable than most unsaturated lipids and can survi

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Sasi, Renjith, S. L. Sreejith, and Roy Joseph. "Ionic Liquids for the Surface Modification of Polymers and Medical Devices." In Ionic Liquids: Eco-friendly Substitutes for Surface and Interface Applications. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815136234123010019.

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Ionic liquids (ILs) attracted global attention owing to their superior functional properties, making them useful for many applications. Low volatility, wide liquidity range, better miscibility with organic and inorganic materials, better electrochemical stability, and negligible toxicity earn them a green solvent status. ILs are suitable alternatives to many volatile and flammable organic solvents that chokes our environment. The presence of asymmetric organic/inorganic ions gave them unique characteristics similar to biomolecules. They could interact with the cell membranes and penetrate the

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Conference papers on the topic "Intact polar lipids"

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Fulton, James, Joshua Ford, and Tabinda Athar. "Environmental controls on the formation of oxidized pigments and intact polar lipids." In Goldschmidt 2024. Geochemical Society, 2024. https://doi.org/10.46427/gold2024.24601.

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Peters, C. A., G. T. Ventura, J. Bentley, et al. "Can Intact Polar Lipids from Shallow Marine Sediments be Used to Help De-Risk Petroleum Exploration?" In 29th International Meeting on Organic Geochemistry. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902852.

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Lattaud, J., M. Gondwe, D. Rush, E. Hopmans, C. Helfter, and C. De Jonge. "Tracking Methane Fluxes Using Intact Polar and Core Lipids in an Aridity Transect of the Okavango Delta (Botswana)." In IMOG 2023. European Association of Geoscientists & Engineers, 2023. http://dx.doi.org/10.3997/2214-4609.202333059.

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Evans, T. W., F. J. Elling, Y. Li, A. Pearson, and R. E. Summons. "Realizing the Full Potential of Lipidomics: A New Protool for an Improved Extraction of the Intact Polar Lipids of Archaea." In 30th International Meeting on Organic Geochemistry (IMOG 2021). European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202134147.

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Halamka, T. A., T. Evans, S. Schubert, A. Younkin, K. Hinrichs, and S. Kopf. "Characterizing the Intact Polar Lipid Profile of the Brgdgt Producer Solibacter Usitatus." In IMOG 2023. European Association of Geoscientists & Engineers, 2023. http://dx.doi.org/10.3997/2214-4609.202333177.

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Ford, Joshua, and James Fulton. "Intact Polar Lipid Profiles and Diagenesis in Dynamic Phosphate-Limited South Texas Microbial Mats." In Goldschmidt 2024. Geochemical Society, 2024. https://doi.org/10.46427/gold2024.22565.

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