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  • Digitale Medien  (11)
  • 1960-1964  (10)
  • 1945-1949  (1)
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  • Digitale Medien  (11)
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  • 1
    Digitale Medien
    Digitale Medien
    Studies on the Mechanism of Auxin Action: Auxin Regulation of Nucleic Acid Metabolism in Pea Internodes and Coconut Milk Nuclei (1964)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 17 (1964), S. 0 
    Details
    ISSN: 1399-3054
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1399-3054.1964.tb08167.x
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  • 2
    Digitale Medien
    Digitale Medien
    Pachytene Chromosomes of Oryza perennis Moench from Cambodia (1964)
    [s.l.] : Nature Publishing Group
    Nature 202 (1964), S. 1362-1363 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The species 0. perennis is mostly cross-pollinated and it has a wide range of variation with a number of distinct geographical races. In the work recorded here a Cam-bodian type of O. perennis Moench was used and Belling's simple acetocarmine technique adopted. Twelve pachytene bivalents were ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/2021362a0
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  • 3
    Digitale Medien
    Digitale Medien
    Pigment Formation by Penicillium rubrum Stoll (1963)
    [s.l.] : Nature Publishing Group
    Nature 199 (1963), S. 71-72 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Ability of a number of different nitrogenous materials, and amino-acids when individually used as the sole source of nitrogen and of various sugars and carbohydrates to produce pigment in Sabourauds medium, have been determined. The extent of pigmentation observed after 8 days is given in ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/199071a0
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  • 4
    Digitale Medien
    Digitale Medien
    Formation of Auxin-bound Proteins (1961)
    [s.l.] : Nature Publishing Group
    Nature 192 (1961), S. 1290-1291 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The auxin Hised was naphthalene acetic acid-l-14C (NAA-14C) obtained from Tracerlab Inc., Waltham, Mass., United States. The specific activity of this preparation was rather low (6-7 (jtc./mgm.); in the experiments described here, concentrations lower than 5 X 10-* M could not be used. To study the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1921290a0
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  • 5
    Digitale Medien
    Digitale Medien
    Effect of Indole-3-Acetic Acid (IAA) on Phosphorus Metabolism in the Avena Coleoptile (1961)
    [s.l.] : Nature Publishing Group
    Nature 192 (1961), S. 1291-1292 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Five-mm. sections of 4-days old Avena coleoptiles (var. N.P.I) were incubated with radioactive di-sodium hydrogen phosphate (Na2H82PO4) and different concentrations of IAA in Jf/150 phosphate buffer of pS. 6-0 for 1 and 2 hr. The tissues were extracted with 80 per cent ethanol and the concentrated ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1921291a0
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  • 6
    Digitale Medien
    Digitale Medien
    On the luminescence of TlCl+KCl phosphor (1962)
    Springer
    The European physical journal 167 (1962), S. 20-25 
    Details
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The measurements on the luminescence spectra of TlCl+KCl mixed phosphor under low energy cathode rays at 80° K have been presented here. The reflectance as well as excitation spectra of this mixed phosphors have also been studied. The X-ray diffraction studies of the samples along with the optical studies show that the mixed phosphor consists of two phases: (1) KCl:Tl (2) TlCl:K. It has been observed that the emission bands due to thallous chloride are gradually quenched with the increase in potassium chloride content of the phosphor; further, the emission bands supposed to be due to KCl:Tl phosphors gradually appear. Since some of the emission bands obtained with KCl:Tl phosphors at high thallium content are also present in the luminescence spectra of thallous chloride it is suggested that such bands should be attributed to undissociated thallous chloride present in KCl:Tl phosphor. The quenching of thallous chloride emission by the incorporation of potassium chloride in the system has been explained as being due to the absence of stoichiometric excess of thallium in such mixed system. The results also show that the absorption spectra of the mixed system is determined by the minor components KCl:Tl. This indicates that the absorption spectra of KCl:Tl phosphor should not be affected by the presence of undissociated thallous chloride.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02144648
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  • 7
    Digitale Medien
    Digitale Medien
    Absorption of Ultra High-Frequency Radio Waves in Organic Liquids (1949)
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 1048-1049 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE anomalous absorption of radio waves of wave-lengths lying between 50 cm. and 1 metre was observed long ago by Drude1, Romanoff2 and others. Romanoff studied the absorption in some alcohols at about 16° C. in the region λ = 57–88 cm., and observed some ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1641048a0
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  • 8
    Digitale Medien
    Digitale Medien
    The effects of nucleases on photosynthetic CO2 fixation (1960)
    Springer
    Cellular and molecular life sciences 16 (1960), S. 135-136 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Zusammenfassung Es scheint, dass DNase und RNase bei der photosynthetischen Fixierung des CO2 verschiedene und komplizierte Wirkung ausüben. Die Saccharaose-Synthese wird durch die Behandlung mit DNase und RNase deutlich vermindert.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02157714
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  • 9
    Digitale Medien
    Digitale Medien
    Interspecific hybridization betweenSesbania aculeata Pers. (4n race) andS. speciosa Taub. ex Engler (2n race) and cause of failure of viable seed-formation (1960)
    Springer
    Theoretical and applied genetics 30 (1960), S. 265-269 
    Details
    ISSN: 1432-2242
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Zwischen der tetraploidenSesbania aculeata Pers. (2n=24) und der diploidenSesbania speciosa Taub. ex Engler (2n=12) wurden experimentell Artkreuzungen durchgeführt. 49 Kreuzungen vonS. aculeata ×S. speciosa ergaben in 4 Fällen (8.2%) Hülsenansatz. 3 dieser Hülsen konnten geerntet werden. Sie enthielten 25 taube Samen. Bei 56 reziproken Kreuzungen wurden 7 Hülsen angesetzt (12,5%) und 4 davon geerntet. Sie enthielten 62 taube und 4 entwickelte, aber nicht keimfähige Samen. Es wird gefolgert, dass für den Ausfall der Samenentwicklung die Genom-Unterschiede der beidenSesbania-Arten die Hauptursache darstellen.
    Notizen: Summary InSesbania aculeata Pers. ♀ ×Sesbania speciosa Taub. ex Engler ♂, pod set was 8.2 per cent and the percentage of pod harvested (out of set pods) was 75. All seeds out of those harvested corss pods were nonviable. InSesbania speciosa Taub. ex Engler ♀ ×Sesbania aculeata Pers. ♂, the pod set was 12.5 per cent and the percentage of pod harvested (out of set pods) was 57.1 All seeds out of those harvested pods were nonviable. The genomic difference of the two species,aculeata (4n race) andspeciosa (1n race) is the main cause of failure of seed development.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00709265
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  • 10
    Digitale Medien
    Digitale Medien
    Study on the rate of pollen tube growth ofSesbania aculeata Pers. Under infra-red radiation in culture medium (1960)
    Springer
    Plant systematics and evolution 107 (1960), S. 80-83 
    Details
    ISSN: 1615-6110
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The rate of pollen tube growth per hour ofSesbania aculeata Pers. under the infra-red rays was slower than the rate of pollen tube growth per hour under day light. When the infra-red rays were offered in combination with normal light or vice versa, in no case the rate of pollen tube growth per hour surpassed the normal rate of pollen tube growth per hour, under day light during the 4 hours' phase of growth.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01282978
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