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1Author    G. Laskay, T. Farkas, E. Lehoczki, K. G. UlyaRequires cookie*
 Title    Effects of Pyridazinone Herbicides during Chloroplast Development in Detached Barley Leaves II. Effects on Lipid Content, Fatty Acid Composition and Ultrastructure of Chloroplasts  
 Abstract    The effects o f three differently substituted pyridazinone herbicides were studied on the lipid content, fatty acid com position o f glycerolipids, fatty acid synthesizing capacity and ultrastruc­ ture o f chloroplasts after 72 h o f greening o f etiolated barley leaves. SAN 9789 caused a nearly threefold increase in the total fatty acid content o f chloroplasts, and this increase was accom ­ panied by an increase in the D G D G -and phospholipid-content as well. SA N 6706 and 9785 caused reduction in the linolenic to linoleic acid ratio in nearly all lipid classes, only PC was unaffected. Both herbicides reduced the saturated to unsaturated ratio in the PG, SAN 9789 had no effect on the fatty acid com position o f the PG. Fatty acid synthesis was inhibited in the SAN 6706-and 9789-treated leaves as m onitored by incorporation o f labelled acetate, but all o f the three pyridazinones stim ulated the incorporation o f labelled galactose into chloroplast galactolipids. SAN 6706 and 9789 also caused abnormal organization o f chloroplast lamellar system. 
  Reference    Z. Naturforsch. 38c, 741—7 (1983); received June 8 1983 
  Published    1983 
  Keywords    Pyridazinones, Chloroplast Lipids, Fatty Acids 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0741.pdf 
 Identifier    ZNC-1983-38c-0741 
 Volume    38 
2Author    Jürgen Jacob, Jens PoltzRequires cookie*
 Title    Bürzeldrüsensekrete von Spechten (Piciformes) The Uropygial Gland Secretion of Woodpeckers (Piciformes)  
 Abstract    The uropygial gland secretion of the blade (Dryocopus martius) and the green woodpecker (Picus viridis) is a mixture of monoester waxes. These are composed mainly of 3-methyl-branched fatly acids and n-and well as 3-methyl-alkanols. Besides 3,x-dimethyl-and 3,7,11-trimethyl-sub-stituted fatty acids and monomethyl-branched alcohols with anteiso configuration and 3,z-dimethyl-substituted alkanols occur (x = 7,9,11,13,15,17). 
  Reference    (Z. Naturforsch. 29c, 236 [1974]; eingegangen am 18. Februar 1974) 
  Published    1974 
  Keywords    Uropygial Gland Fat, Piciformes, Fatty Acids, Alkanols 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0236.pdf 
 Identifier    ZNC-1974-29c-0236 
 Volume    29 
3Author    H. Artm, Ut KayserRequires cookie*
 Title    The Use of Argentation Chromatography for the Analysis of Fatty Acid Esters of Polyenes: The Structure of Carotenoid Esters of A glais urticae (Lepidoptera, Insecta)  
 Abstract    Argentation Thin-layer systems for argentation chromatography of fatty-acid esters of carotenoids have been developed. As two-dimensional reversed-phase partition system on paraffine impregnated cellulose this method permits a clear discrimination between saturated and unsaturated fatty acids. By adsorption on silver nitrate containing silica gel-G separation of carotenoid esters according to the degree of unsaturation of their fatty acids was established. With the use of known esters for comparison the fatty acids of whole carotenoid esters can be successfully analysed from minute amounts. Using these methods the carotenoid esters of pupae of A glais u rticae have been studied. The pupae contain 5.3% /?-carotene, 46% lutein diester, 7.8% lutein 3-monoester, 11.7% lutein 3'-mono-ester, and 29.2% unesterified lutein. The fatty acids of the esters are linoleic acid (18:2) and linolenic acid (18:3) only. The diester fraction was composed of 70% dilinolenate, 25% linolenate-linoleate, and 5% dilinoleate. The combined monoesters consisted of 81% linolenate and 19% linoleate. The two main diesters could be isolated in a preparative scale and their structure verified by mass spectrometry. On the whole, in A glais pupae 6.2 fig linolenic acid and 1.4 [xg linoleic acid are bound to lutein. Since polyunsaturated fatty acids are of dietary origin, and represent essential factors for insect development, it is concluded, that their esterification with carotenoids may be a mode of storage comparable to the formation of glycerides. 
  Reference    (Z. Naturforsch. 30c, 369—378 [1975]; received February 19 1975) 
  Published    1975 
  Keywords    Chromatography, Fatty Acids, Carotenoid Esters, Insect Lipids 
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 TEI-XML for    default:Reihe_C/30/ZNC-1975-30c-0369.pdf 
 Identifier    ZNC-1975-30c-0369 
 Volume    30 
4Author    Edward Göbel, Ruth Riessner, Peter PohlRequires cookie*
 Title    Einfluß von DCMU auf die Bildung von Lipiden und Fettsäuren und auf die Ultrastruktur von Euglena gracilis Influence of DCMU on the Formation of Lipids and Fatty Acids, and on the Ultrastructure of Euglena gracilis  
 Abstract    Euglena g racilis Klebs (strain Z) was grown heterotrophically in the dark for 6 days. Sub­ sequently, the cells were grown photoautotrophically under white fluorescent light with varying amounts of 3-(3,4-dichlorophenyl)-l,ldimethyl urea (DCMU) (1 .7 X 1 0 -9 — 1 .0 X 1 0 -5 mol/1) added 
  Reference    (Z. Naturforsch. 31c, 687 [1976]; eingegangen am 9. März/20. September 1976) 
  Published    1976 
  Keywords    Euglena gracilis, Fatty Acids, Lipids, Ultrastructure, Chloroplasts, Mitochondria 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0687.pdf 
 Identifier    ZNC-1976-31c-0687 
 Volume    31 
5Author    Istvan Cs, BartaRequires cookie*
 Title    Effects of EPTC and Dichlormid on Membrane Lipid Composition of Maize Leaves and Roots  
 Abstract    The changes in fatty acid composition o f maize leaf lipids caused by EPTC were generally similar to known effects o f this herbicide in other plants: decreasing o f linolenic acid content and increasing o f its precursors, palmitic, stearic, oleic and linoleic acids. However, novel effects were detected in roots where the proportion o f minor fatty acid palm itoleic acid was increased from 2.1 to 7.6 and 16.6% by EPTC and EPTC + dichlormid treatments, respective­ ly. Simultaneously, the phospholipid content o f root lipids was increased by both EPTC as well as EPTC + dichlormid treatments. The possible effects o f EPTC and dichlormid on lipid biosynthesis o f maize are discussed. 
  Reference    Z. Naturforsch. 46c, 926 (1991); received March 26 1991 
  Published    1991 
  Keywords    EPTC, Dichlorm id, Membrane Lipids, Fatty Acids, Maize 
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 TEI-XML for    default:Reihe_C/46/ZNC-1991-46c-0926.pdf 
 Identifier    ZNC-1991-46c-0926 
 Volume    46 
6Author    Elsa Fuentes, AnaM. PlanchueloRequires cookie*
 Title    Sterol and Fatty Acid Patterns in Wild and Cultivated Species of Lupinus (Leguminosae)  
 Abstract    Seed oil components of wild and cultivated species of Lupinus were analyzed by gas liquid chromatography (GLC). The sterol and fatty acid patterns of Lupinus albescens and L. gib-ertianus that are considered important germoplasm resources of South America, are reported for the first time and compared with varieties of Lupinus albus, L. angustifolius and L. mutabilis. The taxonomic implication of seed oil composition was evaluated using a multivari­ ate analysis system. 
  Reference    Z. Naturforsch. 52c, 9—1 (1997); received July lO/October 25 1996 
  Published    1997 
  Keywords    Lupinus, Seed Lipids, Fatty Acids, Sterols, GLC 
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 TEI-XML for    default:Reihe_C/52/ZNC-1997-52c-0009.pdf 
 Identifier    ZNC-1997-52c-0009 
 Volume    52 
7Author    RichardJ. Youngman, AlanD. DodgeRequires cookie*
 Title    Mechanism of Paraquat Action: Inhibition of the Herbicidal Effect by a Copper Chelate with Superoxide Dismutating Activity  
 Abstract    The treatment of flax cotyledons (Linum usitatissimum) with paraquat was shown to decrease the levels of chlorophyll and carotenoid pigments. The fatty acid content of chloroplast fragments isolated from treated tissue was determined and shown to be greatly decreased by paraquat treat­ ment. The superoxide radical was demonstrated to play an important role in the phytotoxic action of paraquat by the use of a copper chelate of D-penicillamine, which has a high superoxide dismutat­ ing activity. The action of paraquat was inhibited by this compound. The role of superoxide is discussed with reference to the generation of more toxic species, such as singlet oxygen. 
  Reference    Z. Naturforsch. 34c, 1032—1035 (1979); received May 26 1979 
  Published    1979 
  Keywords    Paraquat, Plant Pigments, Fatty Acids, Superoxide, Copper Chelate, Flax Cotyledons 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-1032.pdf 
 Identifier    ZNC-1979-34c-1032 
 Volume    34 
8Author    P.J W Eldon, A. Shafagati, J.W W HeelerRequires cookie*
 Title    American Alligator (Alligator mississippiensis)  
 Abstract    Lipids from the gular glands of the American alligator (Alligator mississippiensis) were examined by gas chromatography-mass spectroscopy. C14, C|6, and C 18 fatty acids, squalene, and a-tocopherol (vitamin E) were detected in nearly all samples. Cholesterol was detected clearly in several samples. 
  Reference    Z. Naturforsch. 42c, 1345—1346 (1987); received July 2 1987 
  Published    1987 
  Keywords    Alligator, Gular Glands, Fatty Acids, Squalene, a-To-copherol 
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 TEI-XML for    default:Reihe_C/42/ZNC-1987-42c-1345_n.pdf 
 Identifier    ZNC-1987-42c-1345_n 
 Volume    42 
9Author    J. Bednarz, A. Radunz, G. H. SchmidRequires cookie*
 Title    Lipid Composition of Photosystem I and II in the Tobacco Mutant Nicotiana tabacum NC 95  
 Abstract    The lipids of photosystem II particles, of chloroplasts and leaves are compared in the variegated tobacco mutant NC 95. The mutant differs from other N. tabacum mutants by the phenomenon that it has variegated leaves with green and with yellow-green leaf patches. Chloroplasts from the green leaf areas exhibit photosystem II and photosystem I reactions and have a normal lamellar system with grana and intergrana regions. Chloroplasts from the yellow-green leaf areas, how-ever, yield only photosystem I reactions and have only single stranded isolated thylakoids. Hence, this mutant offers the unique possibility to compare without the use of detergents within the same plant the lipid composition of photosystem II particles with that in intact chloroplasts, exhibiting either photosystem II and I reactions or those exhibiting exclusively photosystem I reactions. The lipids of photosystem II particles are composed of 37% glycolipids, 4% phospholipids, 5% carotenoids and 54% chlorophyll. Lipids of chloroplasts with grana stacking are composed of 75% glycolipids, 7% phospholipids, 2% carotenoids and 16% chlorophyll. Chloroplasts with single isolated thylakoids have a lipid composition consisting of 83% glycolipids, 14% phos-pholipids and only 0.5% carotenoids and 2% chlorophyll. The chloroplast lipid mixture is charac-terized in comparison to the respective leaf lipid mixture by a 16—17% higher glycolipid portion and by a 13-70% lower phospholipid content. The main difference in the lipid composition of photosystem I and II consists in the observation that chloroplasts active in only photosystem I contain more than double the amount of glycolipids and the 4-fold amount of phospholipids in comparison to photosystem II active preparations. The amount of monogalactolipid is even 3 times higher in chloroplasts active only in photosystem I when compared to those in photosystem II particles. In photosystem II particles phosphatidyl-ethanolamine is completely lacking and phosphatidylglycerol and phosphatidylinositol occur only in traces. The fatty acids of the sulfolipid are by 45% more saturated in the photosystem II particles and the digalactolipids of the photosystem II particles are by 28% more saturated than in chloroplasts exhibiting photosystem I and II activity. 
  Reference    Z. Naturforsch. 43c, 423—430 (1988); received March 3 1988 
  Published    1988 
  Keywords    Lipids, Fatty Acids, Chloroplasts, Lipid Asymmetry, Photosystem II Particles 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0423.pdf 
 Identifier    ZNC-1988-43c-0423 
 Volume    43 
10Author    M. Uham, M. Ad, Nazir, W. Aqar, Ahm Ad, NaeemA. Khtar, Rabi, Shafiq Ahm, K. HanRequires cookie*
 Title    Epicuticular Leaf Wax of Euphorbia helioscopia L. (Euphorbiaceae)  
 Abstract    The epicuticular wax of Euphorbia helioscopia was fractionated into fatty acids, hydrocar­ bons, wax esters, aldehydes, methyl esters, triterpenol acetates, alcohols, sterols, and polar components. The com position o f the fractions was determined by GC, GC-MS, HPLC. Main com ponents within these lipid classes are hentriacontane, wax esters C ^ and C4g, octacosanal, hexacosanol and octacosanol, hexadecanoic acid, and ß-sitosterol. Lupeol and its acetate were also confirmed. 
  Reference    Z. Naturforsch. 48c, 5 (1993); received September 23 1992 
  Published    1993 
  Keywords    helioscopia, Epicuticular Wax Composition, Fatty Acids, Hydrocarbons, Wax Esters 
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 TEI-XML for    default:Reihe_C/48/ZNC-1993-48c-0005.pdf 
 Identifier    ZNC-1993-48c-0005 
 Volume    48 
11Author    Jens Poltz, Jürgen JacobRequires cookie*
 Abstract    The uropygial gland fats from four species of the family Corvidae are found to be mainly mono­ ester waxes, which consist of mono-, di-, and trimethyl substituted fatty acids and n-and methyl-branched alcohols. The positions of all methyl brandlings are even-numbered, the 2-position is preferred. About 2 — 40% of the secretions consist of triester waxes: Alkyl-hydroxy-malonic acids esterified with n-fatty acids and n-alcohols. Waxes of this type are very common in the uropygial gland fats of birds and therefore, in opposite to the monoester waxes, they are not usable for a chemotaxo­ nomy of birds. 
  Reference    (Z. Naturforsch. 29c, 239 [1974]; eingegangen am 18. Februar 1974) 
  Published    1974 
  Keywords    Uropygial Gland Fat, Chemotaxonomy of Birds, Corvidae, Fatty acids, Alkanols 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0239.pdf 
 Identifier    ZNC-1974-29c-0239 
 Volume    29 
12Author    SayedA. Ibrahim3, JamesW. Averyb, PaulJ. Weldonc, JamesW. Wheeler3Requires cookie*
 Title    Age-Class Differences in Lipids from the Paracloacal Glands of the American Alligator {Alligator mississippiensis)  
 Abstract    The paracloacal gland secretions of immature and adult American alligators (Alligator mississippiensis) from Louisiana were analyzed by gas chromatography/mass spectrometry and nuclear magnetic resonance spectroscopy to investigate age-class differences in lipid composition. The secretions of both immature and adult alligators contain saturated C 14 and C 16 free fatty acids and decyl, undecyl, dodecyl, tetradecyl, and hexadecyl acetates. Com­ pounds observed only in immature alligators include dodecanoic acid, C J2 and C ]4 alcohols, C i0-C 14 butanoates, an array of C8-C 18 3-methylbutanoates, C 12-C 15 hexanoates, C x2 and C 14 octanoates, a C12 decanoate, C 10-C 14 dodecanoates, C I0-C ]6 tetradecanoates, C 12 and C 14 hexadecanoates, a C x2 octadecanoate, and a diterpene hydrocarbon identified as (E ,E)-7,ll,15-trimethyl-3-methylenehexadeca-l,6,10,14-tetraene (ß-springene). Compounds ob­ served only in adults include several C7-C 16 free fatty acids and certain C U)-C 18 acetates. The age-class differences we observe in the paracloacal gland lipids of alligators from Louisi­ ana are similar to those previously reported for alligators from Texas. 
  Reference    Z. Naturforsch. 53c, 201 (1998); received October 15/December 30 1997 
  Published    1998 
  Keywords    Alligator mississippiensis, Paracloacal Gland Secretions, Straight-and Branched-Chain Esters, Alcohols, Fatty Acids, ß-Springene 
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 TEI-XML for    default:Reihe_C/53/ZNC-1998-53c-0201.pdf 
 Identifier    ZNC-1998-53c-0201 
 Volume    53