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  • Lepidoptera  (63)
  • Best. von Kupfer(II) mit Succinimid
  • Bone
  • Collagen
  • Dehydration
  • transformation
  • Springer  (84)
  • American Physical Society
  • Annual Reviews
  • International Union of Crystallography
  • 1985-1989  (73)
  • 1965-1969  (9)
  • 1955-1959  (2)
  • 1945-1949
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  • Springer  (84)
  • American Physical Society
  • Annual Reviews
  • International Union of Crystallography
  • Wiley-Blackwell  (1)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Hickory shuckworm Cydia caryana: electroantennogram and flight tunnel studies of potential sex pheromone components (1987)
    Springer
    Entomologia experimentalis et applicata 44 (1987), S. 23-30 
    Details
    ISSN: 1570-7458
    Keywords: Lepidoptera ; Tortricidae ; Olethreutinae ; Cydia caryana ; sex pheromone ; electroantennogram ; flight tunnel ; behavior
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Les réponses olfactives antennaires de Cydia caryana, mesurées par électroantennogrammes (EAG), aux alcools et acétates à carbones monounsaturés en positions 12 et 14, ont montré que le système conjugué de double liaison, (E)-8-, (E)-10- du dodecadien-1-ol acétate constitue un composé chimique strutural critique de la phéromone sexuelle de C. caryana. De plus, les acétates: (E)-8-dodecen-1-ol,(Z)-8-dodecen-1-ol,(Z)-9-dodecen-1-ol, et le (Z)-12-tetradecen-1-ol, se sont révélés en AEG comme des composés secondaires de la phéromone. L'étude par AEG de la relation dose-réponse a conduit à l'hypothèse de deux catégories de populations de récepteurs de phéromones. L'analyse comportementale des résponses des papillons mâles dans le tunnel de vol aux composés qui ont provoqués les plus forts AEG, on fait estimer que les acétates (E,E)-8,10-dodécadien-1-ol et (Z)-9-dodecen-1-ol ressemblent (ou sont) les constituants de la phéromone sexuelle de C. caryana; tandis que les (Z)-8-dodecen-1-ol et (E)-10-dodecen-1-ol sont, soit des paraphéromones, soit des constituants mineurs de la phéromone. La signification biologique du (Z)-12-tétradécen-1-ol a été difficile à interprêter avec les expériences en tunnel de vol.
    Notes: Abstract Electroantennogram (EAG) measurement of male Cydia caryana moth antennal olfactory response to monounsaturated 12 and 14 carbon alcohols and acetates indicated that the (E)-8-, (E)-10- conjugated double bond system of a dodecadien-1-ol acetate is a critical chemical structural component of the C. caryana sex pheromone. Additionally, EAG measurements implicated (E)-8-dodecen-1-ol acetate, (Z)-8-dodecen-1-ol acetate, (Z)-9-dodecen-1-ol acetate and (Z)-12-tetradecen-1-ol as potential minor pheromonal components. An EAG dosage-response study suggested that there were at least two heterologous populations of pheromone acceptors. Behavioral analysis of male moth response in a flight tunnel to compounds which evoked the stronger EAG responses suggested that (E,E)-8,10-dodecadien-1-ol acetate and (Z)-9-dodecen-1-ol acetate resemble or are C. caryana sex pheromonal components, while (Z)-8-dodecen-1-ol acetate and (E)-10-dodecen-1-ol acetate are either parapheromones or are minor pheromone components. Behavioral significance of (Z)-12-tetradecen-1-ol was difficult to interpret in the flight tunnel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00361305
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  • 2
    Electronic Resource
    Electronic Resource
    Evolution of chick type I procollagen genes (1985)
    Springer
    Journal of molecular evolution 22 (1985), S. 209-219 
    Details
    ISSN: 1432-1432
    Keywords: Collagen ; Ancestral genetic domain ; Simple sequence amplification ; Consensus sequence ; Introns
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Although the major types of vertebrate collagen have a number of structural properties in common, significant DNA sequence homologies have not been detected between different portions of the helical coding domains within the same gene or between different genes. However, under non-stringent hybridization conditions we found considerable cross-homology within and between α1(I) and α2(I) chick cDNAs in the coding regions for helical sequences. Detailed analyses at the DNA sequence level have led us to propose that the gene for chick pro α2(I) collagen arose from a 9-bp primordial sequence. A consensus sequence for the 9-bp repeat was derived: GGTCCTCCT, which codes for a Gly-Pro-Pro triplet. The primordial ancestor of this 9-bp unit, GGTCCTXCT, apparently underwent duplication and divergence. Each resulting 9-bp sequence was triplicated to form a 27-bp domain, and a condensation event produced a 54-bp domain. This genetic unit then underwent multiple rounds of amplification to form the ancestral gene for the full-length helical section of α2(I). A different 9-bp consensus sequence (GGTCCCCCC) seems to have been the basis of the chick pro α1(I) gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02099750
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  • 3
    Electronic Resource
    Electronic Resource
    Identification of sex pheromone components of jack pine budworm,Choristoneura pinus pinus freeman (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 159-167 
    Details
    ISSN: 1573-1561
    Keywords: Choristoneura pinus pinus ; jack pine budworm ; Lepidoptera ; Tortricidae ; (E,Z)-11-tetradecenyl acetate ; (E,Z)-11-tetradecen-1-ol ; sex pheromone ; sex attractant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Chemical identification and field-trapping experiments have shown that a blend of 85∶15 (E,Z)-11-tetradecenyl acetates and 85∶15 (E,Z)-11-tetradecen-1-ols (in a 9∶1 ratio) are female sex pheromone components for jack pine budworm,Choristoneura pinus pinus. This blend of chemicals, formulated in PVC (0.1 %, w/w) sources is as effective a trap bait as virgin females. Preliminary wind tunnel observations have indicated that this blend, effective as a trap bait, is not equivalent to females.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988198
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  • 4
    Electronic Resource
    Electronic Resource
    Transformation of cotton (Gossypium hirsutum L.) by Agrobacterium tumefaciens and regeneration of transgenic plants (1987)
    Springer
    Plant molecular biology 10 (1987), S. 105-116 
    Details
    ISSN: 1573-5028
    Keywords: Agrobacterium tumefaciens ; cotton ; Gossypium hirsutum L. ; regeneration ; transformation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cotton (Gossypium hirsutum L.) cotyledon tissues have been efficiently transformed and plants have been regenerated. Cotyledon pieces from 12-day-old aseptically germinated seedlings were inoculated with Agrobacterium tumefaciens strains containing avirulent Ti (tumor-inducing) plasmids with a chimeric gene encoding kanamycin resistance. After three days cocultivation, the cotyledon pieces were placed on a callus initiation medium containing kanamycin for selection. High frequencies of transformed kanamycin-resistant calli were produced, more than 80% of which were induced to form somatic embryos. Somatic embryos were germinated, and plants were regenerated and transferred to soil. Transformation was confirmed by opine production, kanamycin resistance, immunoassay, and DNA blot hybridization. This process for producing transgenic cotton plants facilitates transfer of genes of economic importance to cotton.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00016148
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  • 5
    Electronic Resource
    Electronic Resource
    Monoterpene oviposition stimulants ofDioryctria amatella in volatiles from fusiform rust galls and second-year loblolly pine cones (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 943-952 
    Details
    ISSN: 1573-1561
    Keywords: Dioryctria amatella ; Lepidoptera ; Pyralidae ; oviposition stimulants ; monoterpenes ; α-pinene ; myrcene ; limonene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Volatiles collected on Poropak Q from fusiform rust galls (Cronartium quercuum F. sp.fusiforme) of loblolly pine for 3 hr were better ovi-position stimulants forDioryctria amatella (Hulst) females than extracts of 8-hr collections. GLC analysis of these extracts showed no major differences in relative monoterpene composition, although 8-hr collections contained an unidentified compound not detected in the 3-hr collections. Comparison of volatiles from second-year loblolly pine cones with those from fusiform galls showed that both containeddl-α-pinene, (−)-β-pinene, myrcene, and (+)-limonene. Camphene was found in galls only, and relatively large quantities of β-phellandrene were identified only from cones. The five major monoterpenes found in the two host substrates were tested in an oviposition bioassay. Eighteen trials using different combinations of these terpenes showed that the combination of α-pinene, myrcene, and limonene was as attractive toD. amatella females as all other terpene combinations, including turpentine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012080
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  • 6
    Electronic Resource
    Electronic Resource
    Sabulodes caberata guenée (Lepidoptera: Geometridae) (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 2107-2116 
    Details
    ISSN: 1573-1561
    Keywords: Sabulodes caberata Guenée ; Sabulodes aegrotata Guenée ; omnivorous looper ; Lepidoptera ; Geometridae ; sex pheromone ; (Z,Z)-6,9-nonadecadiene ; (Z)-9-nonadecenekw] ; n-nonadecane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A 6,9-nonadecadiene, (Z)-9-nonadecene, andn-nonadecane were identified in extracts of sex pheromone glands of femaleSabulodes caberata Guenée. Potential pheromonal activity of gland components was assessed by electroantennogram measurements of gas-chromatographic fractions of abdominal tip extracts. Chemical identification was based on gas chromatography and mass spectrometry of parent compounds, hydrogenation products, ozonolysis products, dimethyl disulfide adducts, and synthesis. The monoene was synthesized via coupling of alkyl and acetylenic intermediates. (Z,Z)-6,9-Nonadecadiene (Z6,Z9-19∶H) was synthesized from methyl linoleate via chain lengthening. SyntheticZ6,Z9-19∶H had the same retention times on polar and nonpolar capillary gas-chromatographic columns as the 6,9-nonadecadiene from the sex pheromone glands. In field testsZ6,Z9-19:H alone produced trap catch of maleS. caberata and addition of (Z)-9-nonadecene orn-nonadecane had no effect on trap catch.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01020313
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  • 7
    Electronic Resource
    Electronic Resource
    In vitro model systems of carcinogenesis: Interaction between c-Ha-ras oncogene and immortalized cells (1988)
    Springer
    Bulletin of experimental biology and medicine 105 (1988), S. 389-392 
    Details
    ISSN: 1573-8221
    Keywords: immortalization ; oncogenes ; transfection ; transformation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00835760
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  • 8
    Electronic Resource
    Electronic Resource
    Climbing by newly hatched larvae of the spotted stalk borer Chilo partellus to the top of sorghum plants (1985)
    Springer
    Entomologia experimentalis et applicata 39 (1985), S. 73-79 
    Details
    ISSN: 1570-7458
    Keywords: Lepidoptera ; Pyralidae ; Chilo partellus ; Sorghum ; phototaxis ; climbing ; leaf anatomy ; surface wax
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Une étude du comportement ascentionnel de chenilles néonates de Chilo partellus a montré que la phototaxie positive oriente l'insecte vers le sommet de la plante d'une façon plus importante que le site de ponte à la base du sorgho. La phototaxie est perdue après la pénétration dans le verticille, sous les effets combinés de l'odeur de l'hôte et de l'obscurité. Des insectes qui s'égarent sur les feuilles doivent retourner sur la tige pour parvenir à atteindre le verticille, et on a observé que les arêtes des feuilles, les épines orientées distalement et les cires de l'hôte provoquent ensemble une réorientation vers le bas de la feuille d'où l'ascension peut être poursuivie. II y a des différences suivant les cultivars en relation avec ces facteurs qui sont la cause partielle des différents niveaux de résistance à ce ravageur.
    Notes: Abstract A study of the mechanisms by which the newly hatched larvae of Chilo partellus reach the whorl from the oviposition site at the base of the plant is presented. A strong positive phototaxis is of primary importance. Reorientation is necessary, however, if larvae stray out onto leaves. Edge spines and leaf waxes are important in reorientation to the culm so that the climb can be continued. There are cultivar differences in relation to these factors which are a partial reason for different levels of resistance to this pest.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00338526
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  • 9
    Electronic Resource
    Electronic Resource
    Male mate-locating behavior inEuphydryas chalcedona (Lepidoptera: Nymphalidae) related to pupation site preferences (1988)
    Springer
    Journal of insect behavior 1 (1988), S. 277-289 
    Details
    ISSN: 1572-8889
    Keywords: mate-locating behavior ; butterfly ; Euphydryas chalcedona ; Lepidoptera ; pupation sites ; sexual discrimination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Males of the checkerspot butterfly (Euphydryas chalcedona)patrol and perch near but not on the larval foodplant in search of females. Experiments with tethered butterflies show that searching males chase virgin females for longer times than they do mated females or males. The larvae leave the larval food-plant to pupate. The correspondence between the distance from the larval foodplant to pupation sites and where males search for females suggests that male mate-locating behavior has evolved to maximize the rate of encounters with newly emerged, virgin females. These conclusions are compared to a recent analysis of butterfly mating systems by Odendaal et al. (Am. Nat. 125: 673–678, 1985).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01054526
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  • 10
    Electronic Resource
    Electronic Resource
    The importance of the behaviour of young larvae in sorghum resistance to Chilo partellus (1987)
    Springer
    Entomologia experimentalis et applicata 45 (1987), S. 47-54 
    Details
    ISSN: 1570-7458
    Keywords: Lepidoptera ; Pyralidae ; Chilo partellus ; spotted stem borer ; resistance mechanism ; larval establishment ; egg infestation ; larval infestation ; bazooka applicator
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé L'Institut International de Recherches sur les Cultures en Régions Semi-Arides (ICRISAT) étudie la protection contre C. partellus Swinhoe par l'utilisation de cultivars résistants. Différents cultivars présentent une résistance à différents stades de croissance de la plante, et à différents stades de l'insecte. La résistance du sorgho à C. partellus dépend de plusieurs mécanismes, l'un d'eux conditionnant l'installation des chenilles du premier stade dans le verticille de la plante. Cependant, la lenteur de l'installation d'est un facteur lié à la résistance que chez quelques cultivars. Plusiers facteurs physiques et chimiques sont associés à l'installation préférentielle des jeunes chenilles dans le verticille foliare. Parmi les caractères physiques, le port érigé des feuilles, la présence de poches à leur base et les cires superficielles sont impliqués dans l'installation des chenilles. Une analyse chimique détaillée d'extraits des structures superficielles a montré que la concentration d'une substance, le C32 “marqueur” de la lignée résistante IS 2205, était 2 fois plus faible que dans les lignées sensibles IS 1151 et CSH 1.
    Notes: Abstract Management of spotted stem borer, Chilo partellus (Swinhoe) by the use of resistant cultivars is being developed at ICRISAT. Different cultivars show resistance based on several mechanisms, one of which affects the establishment of first instar larvae in the plant whorl. However, it has been found that low establishment is a factor associated with resistance only in some cultivars and not in others. A number of physical and chemical plant factors are associated with preferential establishment of the young larvae in the leaf whorl. Among the physical characteristics, erect leaves and curled leaf bases are involved in larval establishment. Detailed chemical analysis of surface extracts showed that the concentration of one compound in the wax is related to resistance at this stage and assessment of physical and chemical plant characters has been used to predict resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00343624
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