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  • 1965-1969  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 890-892 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Phosphate ions are known to be taken up more quickly by the endometrium of pregnant rabbits between the third and the fifth days after mating. It has now been shown that this increase in the amount of phosphate is accompanied by a marked increase in the rate of synthesis of RNA over the same period ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 10 (1967), S. 231-239 
    ISSN: 1570-7458
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Die Ergebnisse genetischer und biochemischer Untersuchungen der Resistenz gegenüber Parathion an Stämmen von Tetranychus urticae Koch werden dargestellt. In die Untersuchung waren sowohl der wohl bekannte Leverkusener R-Stamm als auch zwei resistente Stämme von Neuseeland einbezogen. Im toxikologischen Teil der genetischen Untersuchungen wurde eine topische Applikationstechnik angewendet. Genetisch wie biochemisch scheint die Resistenz der zwei voneinander unabhängigen Neuseeländer Stämme mit der Resistenz des Leverkusener Stammes identisch, d.h. von dem gleichen dominanten Hauptgen verursacht zu sein, welches die Hemmungsrate der Cholinesterase-Enzyme senkt. Bemerkungen über die universelle Bedeutung dieses grundlegenden Resistenzmechanismus werden angefügt.
    Notes: Abstract The results of genetic and biochemical studies of resistance to parathion in strains of Tetranychus urticae are presented. Included in the study is the well-known Leverkusen-R strain, as well as two resistant strains from New Zealand. For the toxicological part of the genetic investigation, a topical application technique is employed. Both genetically and biochemically, the resistances of the two independent New Zealand strains appear identical to the Leverkusen resistance, viz., due to the same major dominant gene which lowers the inhibition rate of the cholinesterase enzyme. Comments are made upon the universal significance of this basic resistance mechanism.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 11 (1968), S. 389-396 
    ISSN: 1570-7458
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé La recherche d'une gamme de solvants pour les essais d'acaricide sur acariens par application locale a montré que le choix est limité par le pouvoir dissolvant, la viscosité et la toxicité. L'acétophénone et l'anisole se sont révelés des solvants utilisable mais l'acétophénone est apparue avoir un faible pouvoir mouillant qui provoque une variabilité dans les valeurs de la DL50 de l'acaricide par rapport à d'autres solvants dans les essais sur Tetranychus urticae Koch.
    Notes: Abstract Investigation of a range of solvents for topical application acaricide tests on mites indicated that the choice was limited by solvent power, viscosity and toxicity. Acetophenone and anisole proved useful solvents but acetophenone appeared to have poor wetting power which caused variability in acaricide LD50 levels compared with other solvents when tested on Tetranychus urticae.
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  • 4
    Publication Date: 1967-05-01
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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