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1985 (1)
1983 (1)
1979 (1)
1Author    D. Dill, H. Eckau, H. BudzikiewiczRequires cookie*
 Title    Neuartige Cerebroside aus Cystobacter fuscus (Myxobacterales) [1] Novel Cerebrosides from Cystobacter fuscus (Myxobacterales) [1]  
 Abstract    From the cell material of Cystobacter fuscus (Myxobacterales) the cerebroside l-0-/3-D-galacto-pyranosyl-N-(2R-hydroxy-15-methylpalmitoyl)-17-methylsphinga-4E,8E-dienin (main compo­ nent) and three related compounds could be isolated, the structure elucidation of which is being reported here. 
  Reference    Z. Naturforsch. 40b, 1738—1746 (1985); eingegangen am 6. Mai 1985 
  Published    1985 
  Keywords    Cystobacter, Myxobacterales, Cerebrosides, Structure Elucidation 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-1738.pdf 
 Identifier    ZNB-1985-40b-1738 
 Volume    40 
2Author    R. Hosemann, J. Loboda-Čačković, H. Č. Ačković, S. F. Ernandez-Berm, F. J. Údez, Baltá-CallejaRequires cookie*
 Title    Structure of Cerebrosides. II. Small Angle X-Ray Diffraction Study of Cerasine  
 Abstract    Cerasine having a molecular weight of 800 differs chemically from phrenosine only in the hy­ droxyl group attached to the fatty acid tail which is replaced by a hydrogen atom. Nevertheless, remarkable differences between both cerebrosides are detected in the lamellae periodicities. In the range of 23 — 66 °C just one single (instead of two) structure with a sim ilar subcell to the triclinic one component of phrenosine is detected. Between 66 and 87 °C three new components (instead of one in phrenosine) appear. Two of the structures are sim ilar to the two phrenosine-components at low tem perature and the tilt angles of their chains with respect to the basal planes can explain the stabilizing capacity of the 201 and 301 netplanes o f the paraffin-like subcells respectively. These lattice planes are parallely aligned to the surfaces o f the lamellae. The long period of 58 A of component II cannot be explained in such a way. This period persits upto 105 °C and coexists from 87 °C with a new com ponent showing a 40 A -periodicity, which cannot either be explained in the above manner. Paracrystalline distortions of the arrangem ent of the bilayers can be justified by orientational disorder of the galactose heads. 
  Reference    Z. Naturforsch. 34c, 1121—1124 (1979); received July 6 1979 
  Published    1979 
  Keywords    Cerebrosides, Lipid Bilayers, X-Ray Diffraction, Long Period, Paracrystalline Distortions 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-1121.pdf 
 Identifier    ZNC-1979-34c-1121 
 Volume    34 
3Author    Britta Verhoek, RenateKäthe Haas, Michael Wrage, Linscheid, Ernst HeinzRequires cookie*
 Title    Lipids and Enzymatic Activities in Vacuolar Membranes Isolated via Protoplasts from Oat Primary Leaves  
 Abstract    Vacuoles were released from oat (Avena sativa) mesophyll protoplasts and purified by sed i­ mentation and flotation. Disruption o f isolated vacuoles follow ed by density gradient centri­ fugation gave two m embrane bands which after com bination were further purified on sucrose gradients. A significant contam ination by microbodies, thylakoids, m itochondria, endoplasm ic reticulum and Golgi membranes can be excluded, whereas markers for plasma m em brane and chloroplast envelope were present in the final membrane preparation. In the purified membrane fraction the follow ing enzym atic activities were detected: N A D H -cytochrome C reductase E.C., ATPase E.C., UD PG : sterol glucosyltransferase, UDP-Gal: diacylglycerol galactosyltransferase E.C., glucan synthetase II, C D P-choline: diacylglycerol phosphocholinetransferase E.C., formation o f acylgalactosyl diacylglycerol and acyl-CoA thioesterase E.C. N on e o f these can be considered to be sp ecific for the tonoplast. Acid phosphatase E.C. was present in the cell sap. The vacuolar membranes contain phospholipids and glycolipids o f the most com plex com posi­ tion found so far in a membrane system isolated from m esophyll protoplasts. About h alf o f the glycolipids were accounted for by glycosyl diacylglycerols usually considered to be confined to plastids. Steryl glycosides and acyl steryl glycosides were other prominent glycolipids. A cere-broside was the predominating lipid com ponent o f this membrane preparation. 
  Reference    Z. Naturforsch. 38c, 770—7 (1983); received May 5 1983 
  Published    1983 
  Keywords    Contamination, Microsomal Enzymes, G alactolipids, Steryl G lycosides, Cerebrosides 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0770.pdf 
 Identifier    ZNC-1983-38c-0770 
 Volume    38