Of labeled sugars

Cheshire M. V. and Mundie C. M. (1981) The distribution of labelled sugars in soil particle size fractions as a means of distinguishing plant and microbial carbohydrate residue. J. Soil Sci. 32, 605 -618. 

Speake and White (1978a, b) identified a glycolipid in the mammary explants to which they assigned the tentative structure Dol.PP.Glc-NAc2Man gGlc2, but they could not show any simple precursor-product relationship between the lipid and protein-bound oligosaccharides. It appears that the reason for this was that the mammary tissue contained appreciable inaccessible pools of labelled sugar nucleotides, which could not... 

Synthetic activity as evidenced by high levels of glycosyltransferases has been observed in Golgi apparatus-rich fractions and radioautographic techniques have shown the incorporation of labeled sugars in the Golgi apparatus of intact cells (Molnar et al., 1969 Ray et al., 1969 Schach-ter et al., 1970 Cheetham et al., 1970 Neutra and Leblond, 1966 Northcote, 1969 Ito, 1969). 

The use of radioactive C as a tracer for carbohydrates in biological syntheses has been widespread". The distribution of radioactivity among a number of labelled sugars in a mixture of monosaccharides can be of considerable importance to the investigator. The separation of radioactive components and their subsequent localisation by auto-radiographic tech-... 

Dissolve 10 g. of cane sugar in water and make up to approxi mately 100 ml. Label three boiling tubes A, B and C, and in them place the following ... 

Up to Harvest. Oilseed rape and field beans are used as break crops for winter wheat on a variety of soils, and potatoes are used on the lighter soils. Sugar beet may also be grown, but this depends not only on the soil but also on the proximity of a sugar beet processing factor. Four Rothamsted-based experiments compared the effectiveness of winter wheat and winter oilseed rape in their use of labelled nitrogen fertilizer. Potatoes were included in two of these experiments and sugar beet and field beans in one experiment each. Two criteria based on the... 

The general approach has been followed for the de novo synthesis of a multitude of differently substituted, unsaturated [112,113] or regiospedfically labeled sugars [102,114]. Unusual branched-chain (42), (43)) and spiro-annulated sugars (45), (46)) have been synthesized from the corresponding aldehyde precursors... 

Immunogold localization of the pectic epitope has been performed on different types of cells cell suspensions, roots, shoots, meristems, coleoptiles, pollen grains, protoplasts from different species carrot, sugar beet, tobacco, oat... The pattern of labeling was always the same polygalacturonic acid was essentially located on the material expanded at three-way junctions between cells or lining intercellular space, but was not found in primary walls. No epitope could be located close to the plasma membrane (Fig. lO.a). Middle lamellae far from junction zones and walls of meristematic cells were never labeled. 

Fig. 5. A speculative model for the arrangement of the helical regions of the sugar transporters in the membrane. The helices are numbered as shown in Fig. 4. The small circle labelled s represents a glucose molecule.

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