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  • Articles  (116)
  • Immunocytochemistry  (69)
  • Triticum aestivum
  • Whales
  • bio activity, volcanic lakes, costa rica
  • Springer  (116)
  • Institute of Electrical and Electronics Engineers (IEEE)
  • Public Library of Science
  • 1975-1979  (116)
Collection
  • Articles  (116)
Source
Keywords
Publisher
  • Springer  (116)
  • Institute of Electrical and Electronics Engineers (IEEE)
  • Public Library of Science
Years
Year
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Demonstration of enamel matrix proteins on root-analogue surfaces of rabbit permanent incisor teeth (1977)
    Springer
    Calcified tissue international 24 (1977), S. 223-229 
    Details
    ISSN: 1432-0827
    Keywords: Enamel-cementum-morphology ; Immunocytochemistry ; Biochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary The continuously erupting rabbit incisor tooth is normally thought of as having an enamel covered “crown” on its labial surface and a cementum covered “root” on its lingual surface. We have examined both surfaces of continuously erupting rabbit incisor teeth taken from near term embryos by a variety of means, including transmission and scanning electron microscopy, biochemical fractionation, and immunohistochemistry. In all cases, we could detect no qualitative difference in the early extracellular matrices taken from the labial and lingual surfaces of the teeth. Both matrices were shown to be composed of dentin and enamel, although the thickness and geometry of the enamel matrix on the lingual surface was somewhat different from that on the labial surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223320
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  • 2
    Electronic Resource
    Electronic Resource
    Phytochrome photoreversibility: Empirical test of the hypothesis that it varies as a consequence of pigment compartmentation (1978)
    Springer
    Planta 141 (1978), S. 129-134 
    Details
    ISSN: 1432-2048
    Keywords: Avena ; Immunocytochemistry ; Phytochrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Phytochrome of oat (Avena sativa L., cv. Garry) coleoptile cells in the red-light-absorbing form, Pr, is diffusely distributed while after conversion to the far-red-light-absorbing form, Pfr, it is observed only in very small areas within the cell. Comparison of phytochrome photoversibility measurements to the distribution of the pigment within the cell indicates that the spectral assay is not influenced by the observed compartmentalization of the chromoprotein. However, the observed compartmentalization of phytochrome is correlated with a loss in spectrophotometrically detectable Pr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387878
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  • 3
    Electronic Resource
    Electronic Resource
    Identification of wheat (Triticum aestivum L.) chromosomes with genes controlling the level of nitrate reductase, nitrite reductase, and acid proteinase using the Chinese Spring-Hope substitution lines (1976)
    Springer
    Biochemical genetics 14 (1976), S. 905-912 
    Details
    ISSN: 1573-4927
    Keywords: chromosome substitution ; nitrate reductase ; nitrite reductase ; acid proteinase ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The levels of nitrate reductase, nitrite reductase, and acid proteinase were compared in the primary leaves of 8-day-old wheat seedlings of Chinese Spring, Hope, and the 21 disomic substitution lines of Hope in Chinese Spring. Two chromosomes, 7B and 7D, were considered to contain genes controlling the level of nitrate reductase. Substitution of Hope chromosome 7B caused a highly significant increase in the in vitro stability of nitrate reductase. Nitrite reductase appeared to be controlled by two major genes, located on chromosomes 4D and 7D, and two minor genes, located on chromosomes 3D and 5A. In the case of acid proteinase, substitution of chromosome 1D caused a significant reduction in enzyme activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00485123
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  • 4
    Electronic Resource
    Electronic Resource
    Glutamate oxaloacetate transaminase isozymes of the Triticinae: dissociation and recombination of subunits (1977)
    Springer
    Theoretical and applied genetics 50 (1977), S. 47-51 
    Details
    ISSN: 1432-2242
    Keywords: Glutamate Oxaloacetate Transaminase ; Isozymes ; Triticum aestivum ; Subunits
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A simple procedure has been developed for the dissociation of active molecules of glutamate oxaloacetate transaminase (GOT: E.C. 2.6.1.1) into protomers and for the reassociation of the subunits into active enzymes. Results of experiments in which the protomers of genetically controlled electrophoretic variants of GOT of Triticum aestivum and of several related species were dissociated and recombined in crude tissue extracts and in partially purified preparations support the hypothesis that the enzyme exists functionally as a dimer in the Triticinae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00273797
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  • 5
    Electronic Resource
    Electronic Resource
    Protein accumulation, RNA and soluble amino nitrogen content in developing endosperm of two varieties of Triticum aestivum with high and low protein seed (1977)
    Springer
    Theoretical and applied genetics 50 (1977), S. 73-77 
    Details
    ISSN: 1432-2242
    Keywords: Triticum aestivum ; Wheat ; Endosperm ; Protein Synthesis ; RNA Level ; Amino Acid Translocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The kinetics of protein accumulation, the variation in RNA, the soluble amino nitrogen content of developing endosperm of two varieties of Triticum aestivum, with high and low protein content in the mature seed, suggest a possible relation between maintenance of the RNA content and the ability to synthesize protein. A sudden halt in protein accumulation is observed as the RNA starts to decrease. The hypothesis is also advanced that maintenance of the RNA content might, in turn, be dependent on the presence, in the endosperm of developing wheat seed, of a certain level of soluble amino nitrogen which could then play the role of limiting factor for protein synthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00277249
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  • 6
    Electronic Resource
    Electronic Resource
    The chromosomal location of peroxidase isozymes of the wheat kernel (1979)
    Springer
    Theoretical and applied genetics 55 (1979), S. 73-76 
    Details
    ISSN: 1432-2242
    Keywords: Triticum aestivum ; Wheat, Peroxidases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The analysis of the individual parts of the Triticum aestivum L. kernel yields a total of 11 peroxidase isozymes: m, n, a, c, d1, d, d2, e, f, g and h (in order from faster to slower migration). Isozymes a, c and d are found in the endosperm (Ed) and seed coats (C), while m, n, d1, d2, e, f, g and h are peculiar to the embryo and scutellum (E + S). The use of the nullitetrasomic and ditellosomic series of ‘Chinese Spring’ wheat allows peroxidase isozymes to be associated with specific chromosome arms. Isozymes a, c and d (Ed) are associated with chromosome arms 7DS, 4BL and 7AS; whereas isozymes m, d2, e and f are associated with chromosome arms 3DS, 3BL, 3DL and 3DL, respecitvely. Thus, the E + S isozymes are associated with homoeology group 3 and the Ed isozymes with homoeology groups 7 (a and d isozymes) or 4 (c isozymes).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00285193
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  • 7
    Electronic Resource
    Electronic Resource
    Combining ability analysis over F1-F5 generations in diallel crosses of bread wheat (1979)
    Springer
    Theoretical and applied genetics 55 (1979), S. 77-80 
    Details
    ISSN: 1432-2242
    Keywords: Combining ability analysis ; Triticum aestivum ; Diallel crosses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Combining ability studies for grain yield and its primary component traits in diallel crosses involving seven diverse wheat cultivars of bread wheat (Triticum aestivum L.) over generations F1-F5 are reported. The general and specific combining ability variances were significant in all generations for all the traits except specific combining ability variance for number of spikes per plant in the F5. The ratio of general to specific combining ability variances was significant for all the traits except grain yield in all the generations. This indicated an equal role of additive and non-additive gene effects in the inheritance of grain yield, and the predominance of the former for its component traits. The presence of significant specific combining ability variances in even the advanced generations may be the result of an additive x additive type of epistasis or evolutionary divergence among progenies in the same parental array. The relative breeding values of the parental varieties, as indicated by their general combining ability effects, did not vary much over the generations. The cheap and reliable procedure observed for making the choice of parents, selecting hybrids and predicting advanced generation (F5) bulk hybrid performance was the determination of breeding values of the parents on the relative performance of their F2 progeny bulks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00285194
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  • 8
    Electronic Resource
    Electronic Resource
    Immunocytochemical localization of vasotocin and mesotocin in the hypothalamus of lacertilian reptiles (1979)
    Springer
    Cell & tissue research 200 (1979), S. 223-227 
    Details
    ISSN: 1432-0878
    Keywords: Hypothalamus ; Lacertilian reptiles ; Vasotocin neurons ; Mesotocin neurons ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The hypothalamic magnocellular neurosecretory system of lizards was studied with the unlabeled antibody peroxidase-antiperoxidase complex (PAP) technique at the light microscopic level. It was shown that vasotocin and mesotocin are synthesized in separate neurons. The vasotocinergic as well as the mesotocinergic perikarya are of different sizes. Both cell types occur in close juxtaposition, but without a distinct pattern of distribution. The external zone of the lacertilian median eminence contains numerous immunoreactive vasotocinergic fibers and only few immunoreactive mesotocinergic fibers. The general organization of the hypothalamic magnocellular neurosecretory system of lizards, as revealed by immunocytochemistry, is essentially similar to that revealed with unspecific staining methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236415
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  • 9
    Electronic Resource
    Electronic Resource
    Electron microscopical-immunocytochemical evidence of ecdysteroids in the prothoracic gland of Galleria mellonella (1979)
    Springer
    Cell & tissue research 200 (1979), S. 285-290 
    Details
    ISSN: 1432-0878
    Keywords: Immunocytochemistry ; Ecdysteroids ; Prothoracic gland ; Insect hormones ; Galleria mellonella
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Fixation of prothoracic glands of Galleria mellonella with a solution containing saponin permits immunocytochemical staining of the entire gland. By this means ecdysteroids were demonstrated electron microscopically to be present in the hyaloplasm and microtubules.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236420
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  • 10
    Electronic Resource
    Electronic Resource
    Immunocytochemical identification of enkephalinergic neurons in the hypothalamic magnocellular preoptic nucleus of the goldfish, Carassius auratus (1979)
    Springer
    Cell & tissue research 200 (1979), S. 147-151 
    Details
    ISSN: 1432-0878
    Keywords: Enkephalin neurons ; Vasotocin neurons ; Isotocin neurons ; Immunocytochemistry ; Goldfish (Carassius)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Our immunocytochemical investigation of the magnocellular neuroendocrine system in the goldfish hypothalamus reveals enkephalin (ENK)-containing neurons interspersed among the vasotocin (VT)- and isotocin (IT)-containing neurons of the preoptic nucleus. The perikarya of the ENK, VT, and IT neurons do not show distinct morphological differences at the level of light microscopy and are not located preferentially within the nucleus. Separate ENK, VT and IT fibers course laterally and ventrally through the hypothalamus as they descend toward the pituitary gland. All three fiber types form terminals around blood vessels in the neurohypophysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236894
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