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  • Rat  (210)
  • Spektralphotometrie  (84)
  • wheat  (78)
  • Springer  (372)
  • American Chemical Society
  • American Meteorological Society
  • Nature Publishing Group
  • Springer Nature
  • 1985-1989  (177)
  • 1975-1979  (129)
  • 1970-1974  (66)
  • 1960-1964
  • 1950-1954
  • 1988  (74)
  • 1985  (103)
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  • 1974  (43)
  • 1971  (23)
  • 1953
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  • Springer  (372)
  • American Chemical Society
  • American Meteorological Society
  • Nature Publishing Group
  • Springer Nature
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  • 1985-1989  (177)
  • 1975-1979  (129)
  • 1970-1974  (66)
  • 1960-1964
  • 1950-1954
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  • 1
    Electronic Resource
    Electronic Resource
    Influence of hydrochlorothiazide on the pain threshold and on the antinociceptive activity of morphine, in rats (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 265-266 
    Details
    ISSN: 1420-9071
    Keywords: Rat ; hydrochlorothiazide ; pain threshold ; antinociceptive activity ; analgesic activity ; morphine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Hydrochlorothiazide, acutely injected in rats, has a weak analgesic activity per se and potentiates and prolongs the antinociceptive effect of morphine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02002628
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of 2-β-D-glucosyl-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one onSchizaphis graminum (rondani) (insecta, aphididae) feeding on artificial diets (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 514-516 
    Details
    ISSN: 1420-9071
    Keywords: Hydroxamic acid ; cereals ; maize ; wheat ; aphids ; greenbug
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary 2-β-Glucosyl-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA-Glc), the main hydroxamic acid from maize and wheat, and its aglucone, decreased survival ofSchizaphis graminum reared on artificial diets. Both compounds were toxic for aphids and acted as feeding deterrents, at concentrations as low as 1 mM. The natural concentrations of glucosides of hydroxamic acids in wheat leaves reach up to 6 mmoles/kg fresh weight, thus falling within the range in which DIMBOA-Glc causes delecterious effects to diet-fed aphids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01966177
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  • 3
    Electronic Resource
    Electronic Resource
    Dietary modulation of α-amylase activity in eight geographical strains of Sitophilus oryzae and Sitophilus zeamais (1988)
    Springer
    Entomologia experimentalis et applicata 46 (1988), S. 47-54 
    Details
    ISSN: 1570-7458
    Keywords: Coleoptera ; Curculionidae ; Sitophilus ; S. oryzae ; S. zeamais ; rice weevil ; maize weevil ; geographical strains ; digestion ; amylase ; diet ; barley ; corn ; maize ; rice ; wheat ; amylase inhibitors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé La transformation de rang des valeur d'activité spécifique de l'α-amylase de 4 souches de S. oryzae et de 4 souches de S. zeamais montre que les niveaux les plus élevés de ces enzymes prédominantes s'observent chez les adultes nourris d'orge mondé ou de riz brun á grains longs. Des niveaux intermédiaires d'activité ont été obtenus chez les insectes élevés sur maïs jaune, et les niveaux les plus faibles chez ceux élevés sur blé. Bien que les extraits préparés à partir d'orge présentent une activité inhibitrice de deux isoamylases purifiées de S. oryzae, les niveaux des inhibiteurs naturels α-amylase de ces deux enzymes sont environ respectivement 2,2 et 6,1 fois plus concentrés dans le blé. L'ingestion de ces inhibiteurs d'amylase et la formation d'un complexe enzyme inactive/inhibiteur avec l'amylase secrétée antérieurement, peut rendre compte de la plus faible activité de l'amylase chez les charançons consommant du blé. Le niveau d'amylase de S. oryzae est 2 fois plus élevé que celui de S. zeamais pour toutes les souches élevées sur un régime donné. Des niveaux d'activité significativement différents ont été trouvés suivant les souches pour chacune des deux espèces. Puisque l'amylase est la principale hydrolase digestive de ces espèces, l'intensité de la modification des teneurs en amylase par la consommation de céréales peut indiquer leur adéquation comme hôtes potentiels.
    Notes: Abstract Rank transformation of specific activity values of α-amylase across four strains of Sitophilus oryzae (L.) and four strains of S. zeamais Motschulsky indicates that levels of these predominant enzymes are highest in adults feeding on hulled barley or long-grain brown rice. Intermediate activity levels are found in weevils feeding on yellow corn (maize) and lowest levels are found in wheat-fed weevils. Although extracts prepared from barley contain inhibitory activity against two purified isoamylases from S. oryzae, levels of the naturally-occurring α-amylase inhibitors against these two enzymes are about 2.2-fold and 6.1-fold, respectively, more concentrated in wheat. Ingestion of these amylase inhibitors and formation of an inactive enzyme:inhibitor complex with previously secreted amylase may account for the lower activity of amylase in weevils of both species feeding on wheat. Amylase levels across all strains feeding on a given diet are about 2-fold higher in S. oryzae than in S. zeamais. Significant differences in activity levels were also found between strains in both species. Since α-amylase is a predominant digestive hydrolase in these species, the degree to which cereal diets affect amylase levels may indicate their suitability as potential hosts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00186999
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  • 4
    Electronic Resource
    Electronic Resource
    Cortical bone remodeling in normal rat (1977)
    Springer
    Calcified tissue international 23 (1977), S. 161-170 
    Details
    ISSN: 1432-0827
    Keywords: Bone ; Growth ; Rat ; Remodeling ; Tetracyclines
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Cortical bone remodeling along the femur diaphysis was determined in normal female rats (Sprague-Dawley) with the tetracycline technique. Three segments on the cortical bone circumference (the anterolateral, the medial, and the posterior) were found to be most suitable for the study of the remodeling process. Oxytetracycline was administered at age 60 and 75 days, and groups of animals were killed at age 75, 85, 95, and 105 days. The accumulated endosteal growth during age 60 to 75 days in the anterolateral segment was found to increase uniformly in the distal direction along the femur diaphysis. A method is described where this accumulated endosteal growth is used. This method eliminates the use of calipers to determine the section level and makes it possible to study comparable sections even after varying periods of time. The proximal part of the diaphysis showed periosteal apposition in all three segments. The periosteal apposition turned into resorption in the distal part of the diaphysis in the anterolateral and medial segments, whereas the periosteal appsition increased in the posterior segment. The endosteal growth increased in the distal direction in the anterolateral and medial segments. Irregular OTC bands made measurements of endosteal remodeling in the posterior segment impossible. The cortical width decreased in the distal direction along the femoral shaft. Comparison between the different age groups is described and also the relation between the accumulated endosteal growth and the diameter of the medullary cavity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012782
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  • 5
    Electronic Resource
    Electronic Resource
    Immunological homologies between yeast ribosomal protein L2 and rat liver ribosomal proteins L4 and L24 (1988)
    Springer
    Current genetics 13 (1988), S. 235-239 
    Details
    ISSN: 1432-0983
    Keywords: Ribosomal protein ; Immunological homology ; Yeast ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Polyclonal antibodies raised against ribosomal protein (r-protein) L2 of Schizosaccharomyces pombe were used to check for cross-reaktions with total r-proteins of rat liver. Using this procedure, the rat liver r-proteins, L4 and L24, were identified as being immunologically related to yeast L2. In addtional, homologies between rat liver L4 and L24 were detected. The possible implications for the regulation of r-protein synthesis are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387769
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  • 6
    Electronic Resource
    Electronic Resource
    Fungal volatiles associated with moldy grain in ventilated and non-ventilated bin-stored wheat (1988)
    Springer
    Mycopathologia 101 (1988), S. 53-60 
    Details
    ISSN: 1573-0832
    Keywords: odors ; volatiles ; microflora ; fungi ; wheat ; seasonality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The fungal odor compounds 3-methyl-l-butanol, l-octen-3-ol and 3-octanone were monitored in nine experimental bins in Winnipeg, Manitoba containing a hard red spring wheat during the autumn, winter and summer seasons of 1984–85. Quality changes were associated with seed-borne microflora and moisture content in both ventilated and non-ventilated bins containing wheat of 15.6 and 18.2% initial moisture content. All three odor compounds occurred in considerably greater amounts in bulk wheat in non-ventilated than in ventilated bins, particularly in those with wheat having 18.2% moisture content. The presence of these compounds usually coincided with infection of the seeds by the fungi Alternaria alternata (Fr.) Keissler, Aspergillus repens DeBarry, A. versicolor (Vuill.) Tiraboschi, Penicillium crustosum Thom, P. oxalicum Currie and Thom, P. aurantiogriseum Dierckx, and P. citrinum Thom. High production of all three odor compounds in damp wheat stored in non-ventilated bins was associated with heavy fungal infection of the seeds and reduction in seed germinability. High initial moisture content of the harvested grain accelerated the production of all three fungal volatiles in non-ventilated bins.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00455669
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of time of application on the effectiveness of zinc sulphate and zinc oxide as sources of zinc for wheat (1988)
    Springer
    Nutrient cycling in agroecosystems 17 (1988), S. 147-151 
    Details
    ISSN: 1573-0867
    Keywords: time of zinc application ; wheat ; zinc sulphate ; zinc oxide ; zinc uptake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Field experiments with wheat were conducted for two years on flood plain alluvial soils to study the effectiveness of soil application of zinc sulphate and zinc oxide at 0, 15, 45, 60, 75 and 90 days after sowing. Yield and zinc uptake of wheat increased significantly with the application of zinc. Delaying the application of both zinc sulphate and zinc oxide up to 45 days of sowing did not adversly affect the zinc nutrition of wheat. However, delaying the application for 75 or 90 days after sowing eliminated the response. Zinc sulphate, when applied within 60 days of sowing performed better than zinc oxide. In a laboratory study, zinc sulphate maintained a higher level of zinc in the soil solution than zinc oxide at least over a 3-week period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01050275
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  • 8
    Electronic Resource
    Electronic Resource
    Interaction of ammonium and nitrate nutrition with potassium in wheat (1988)
    Springer
    Nutrient cycling in agroecosystems 17 (1988), S. 137-146 
    Details
    ISSN: 1573-0867
    Keywords: Ammonium-nitrate-potassium interaction ; accumulation of reduced nitrogen ; wheat ; nitrification inhibitor ; grain ; stover
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A greenhouse experiment with wheat in 3L pots filled with a sandy loam soil in a factorial design was conducted to determine the effect of potassium on nitrogen utilization. Nitrogen was applied in three NH4-N/NO3-N ratios, 0/100, 25/75 and 50/50, at three levels: 0.75, 1.50 and 3.00gN/pot, and potassium was applied at three levels: 0, 0.5 and 1.0gK/pot. The higher levels of nitrate nitrogen with or without potassium reduced dry matter yields drastically, while the same levels of a NH4-N/NO3-N mixture of 50/50 with applied potassium reduced yields only slightly. Highest grain yield and total yield were obtained with a 25/75 mixture of ammonium/nitrate nitrogen with added potassium. Potassium addition to soil increased the utilization of nitrogen fertilizers, particularly when the ratio of ammonium to nitrate was increased. The highest uptake of reduced nitrogen was at the highest level of the ammonium to nitrate nitrogen ratio (50/50) when potassium was applied. Tillering was enhanced by an increased ammonium ratio in the nitrogen mixture, and by potassium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01050274
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  • 9
    Electronic Resource
    Electronic Resource
    Fertilizer requirement of rice-wheat and maize-wheat rotations on coarse-textured soils amended with farmyard manure (1988)
    Springer
    Nutrient cycling in agroecosystems 17 (1988), S. 153-164 
    Details
    ISSN: 1573-0867
    Keywords: farmyard manure ; maize ; nitrogen ; phosphorus ; rice ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Field experiments with rice-wheat rotation were conducted during five consecutive years on a coarse-textured low organic matter soil. By amending the soil with 12t FYM ha−1, the yield of wetland rice in the absence of fertilizers was increased by 32 per cent. Application of 80 kg N ha−1 as urea could increase the grain yield of rice equivalent to 120 kg N ha−1 on the unamended soil. Although the soil under test was low in Olsen's P, rice did not respond to the application of phosphorus on both amended and unamended soils. For producing equivalent grain yield, fertilizer requirement of maize grown on soils amended with 6 and 12 t FYM ha−1 could be reduced, respectively to 50 and 25 per cent of the dose recommended for unamended soil (120 kg N + 26.2 kg P + 25 kg K ha−1). Grain yield of wheat grown after rice on soils amended with FYM was significantly higher than that obtained on unamended soil. In contrast, grain yield of wheat which followed maize did not differ significantly on amended or unamended soils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01050276
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of P fertilizer on alleviating chloride toxicity in wheat (1985)
    Springer
    Nutrient cycling in agroecosystems 6 (1985), S. 171-176 
    Details
    ISSN: 1573-0867
    Keywords: Chloride ; phosphorus ; salinity ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A pot study with four levels each P (control, 6.5, 13.0, 19.5 mg kg−1) and Cl− in irrigation water (control, 30, 60, 90me l−1) was carried out to test Cl− and P interaction on wheat. It has been found that optimum P nutrition alleviates the toxic effect of excess Cl−. Highest P rate resulted in a significant yield increase upto a Cl− level of 60me l−1. Cl− depressed P content in the plant only at a Cl− level of 90me l−1, while P rates had no major impact on the Cl− concentration in the plant. Lower Cl− concentration at higher P rates are rather a dilution effect than an antagonistic one. With optimum P supply higher Cl− contents in the plants were tolerated than with a low P supply.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01051011
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