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  • Lepidoptera  (8)
  • calcium
  • Springer  (12)
  • 2005-2009
  • 1985-1989  (12)
  • 1980-1984
  • 1975-1979
  • 1965-1969
  • 1985  (12)
Collection
Keywords
Publisher
  • Springer  (12)
Years
  • 2005-2009
  • 1985-1989  (12)
  • 1980-1984
  • 1975-1979
  • 1965-1969
Year
  • 1
    Electronic Resource
    Electronic Resource
    Field trapping of threeEpinotia species with (Z,Z)-7,9-dodecadienyl acetate (Lepidoptera: Tortricidae) (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 1389-1398 
    Details
    ISSN: 1573-1561
    Keywords: (Z,Z)-7,9-Dodecadienyl acetate ; (Z,Z)-7,9-dodecadien-1-ol ; Epinotia silvertoniensis ; Epinotia criddleana ; Epinotia sp. ; Lepidoptera ; Tortricidae ; sex attractant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Field survey of the geometrical isomers of 7,9-dodecadienyl alcohol, acetate, and aldehyde has resulted in attractants and inhibitors for three species of tortricid moths.Epinotia silvertoniensis and an undescribedEpinotia sp. were all attracted to (Z,Z)-7,9-dodecadienyl acetate. AnotherEpinotia sp. was attracted to (Z,Z)-7,9-dodecadienyl acetate and (Z,Z)-7,9-dodecadien-1-ol. Electroantennogram data and inhibition patterns for one of theEpinotia sp. are also reported. In addition,E. criddleana was attracted to lures containing (E)-9-dodecenyl acetate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012139
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  • 2
    Electronic Resource
    Electronic Resource
    Attraction of tortricid moths of subfamily olethreutinae to field traps baited with dodecadienes (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 217-230 
    Details
    ISSN: 1573-1561
    Keywords: Sex attractant ; Lepidoptera ; Tortricidae ; Olethreutinae ; 8,10-dodecadienes ; 7,9-dodecadienes ; field trapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract All four geometrical isomers of 7,9- and 8,10-dodecadienes with acetate, alcohol, and aldehyde functional groups were synthesized and field tested. The field survey produced sex attractant lures for 14 insect species. Species in the generaCydia, Grapholita, Eucosma, Pelochrista, Petrova, Phenta, Hedya, and Pseudosciaphila were captured. Defined lures were developed for some of the species captured. Gas chromatographie retention times for all geometrical isomers of 7,9- and 8,10-dodecadienes with acetate, alcohol, and aldehyde functional groups are reported. A study of the isomerization of 8,10-dodecadienyl acetates and aldehydes impregnated in rubber septa is reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988204
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  • 3
    Electronic Resource
    Electronic Resource
    Attraction of moth species of Tortricidae, Gelechiidae, Geometridae, Drepanidae, Pyralidae, and Gracillariidae families to field traps baited with conjugated dienes (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 1645-1657 
    Details
    ISSN: 1573-1561
    Keywords: Sex attractant ; Lepidoptera ; Tortricidae ; Gelechiidae ; Geometridae ; Drepanidae ; Pyralidae ; Gracillariidae ; conjugated diene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Field surveys of a series of conjugated diunsaturated straight-chain primary alcohols, acetates, and aldehydes (dienes), including the 3,5-dode-cadienyl, 8,10-dodecadienyl, 3,5-tetradecadienyl, 8,10-tetradecadienyl, 9,11-tetradecadienyl, and 10,12-tetradecadienyl primary alcohols, acetates, and most aldehydes, and the related monounsaturated straight-chain primary alcohols, acetates, and aldehydes (monoenes), including the 3-dodecadienyl alcohol and acetates, attracted the following species from the title families. Diene attractants have been demonstrated for at least onePhyllonorycter sp.,Chionodes lugubrella (Fabr.),Leptostales ferruminaria (Zell.),Drepana bilineata (Pack.),Pyrausta fodinalis (Led.),Notocelia purpurissatana Heinr.,Phaneta alterana Heinr. Monoene attractants were demonstrated forHedya separatana (Kft.),Cydia fletcherana (Kft.),Barbara mappana Free.,Ancylis burgessiana (Zell.),Ancylis nubeculana Clem.,Evippe prunifoliella Cham.,Phlyctaenia coronata tertialis (Gn.), aChionodes sp., a Gelechiidae sp., and an unidentifiedPhyllonorycter sp. Replicated field experiments showed attraction-inhibition relationships for most species. Electroantennagram data are presented forLeptostales ferruminaria andDrepana bilineata.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012118
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  • 4
    Electronic Resource
    Electronic Resource
    The alteration of calling behaviour by female Choristoneura fumiferana when exposed to synthetic sex pheromone (1985)
    Springer
    Entomologia experimentalis et applicata 37 (1985), S. 13-16 
    Details
    ISSN: 1570-7458
    Keywords: spruce budworm ; Choristoneura fumiferana ; Lepidoptera ; Tortricidae ; calling behavior ; sex pheromone ; bioassay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Des expériences ont été menées au laboratoire pour examiner si la phéromone sexuelle synthétique de C. fumiferana pouvait altérer le comportement d'appel de femelles vierges de la même espèce. Un appareil a été conçu pour libérer alternativement — à des intervalles déterminés — un courant d'air portant de la phéromone sexuelle ou un courant d'air pur, dans plusieurs flacons contenant des femelles vierges. Le comportement sexuel de mouches de 0 et 2 jours a ainsi été observé. Indépendamment de l'exposition des femelles à la phéromone, il y avait deux pics quotidiens d'activité d'appel, l'un dans l'après-midi et l'autre après le crépuscule. Des papillons exposés au 1×10−6 mg ou 1×10−3 mg de phéromone avaient un premier pic d'appel au moins antérieur de 2 heures par rapport aux témoins. Ainsiily a vait un plus grand nombre de papillons engagés dans une activité d'appel en présence de la phéromone que chez les témoins.
    Notes: Abstract The calling behaviour of 0-day-old and 2-day-old virgin female eastern spruce budworm moths, Choristoneura fumiferana (Clem.) was observed during exposure to different concentrations of the synthetic female sex pheromone. Regardless of whether the females were exposed to pheromone or not, there were two daily peak periods of calling activity, one in the afternoon and the other after dusk. Those moths exposed to pheromone commenced calling at least 2 h earlier during their first peak of calling activity. Also, a greater number of moths engaged in calling when exposed to pheromone than those under control conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00366803
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  • 5
    Electronic Resource
    Electronic Resource
    Antifeedant and insecticidal properties of azadirachtin to the European Corn Borer, Ostrinia nubilalis (1985)
    Springer
    Entomologia experimentalis et applicata 38 (1985), S. 29-34 
    Details
    ISSN: 1570-7458
    Keywords: European corn borer ; Ostrinia nubilalis ; Pyralidae ; Lepidoptera ; azadirachtin ; antifeedant ; botanical insecticide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé On a examiné les propriétés anti-appétantes et insecticides de l'azadirachtine, une substance triterpénoïde provenant d'Azadirachta indica envers la pyrale du maïs Ostrinia nubilalis. La concentration effective pour causer 50% d'inhibition de l'alimentation larvaire (PC50) sur des disques foliaires a été de 3.5 ppm pour les larves de premier stade et de 24 μg/8 pour celle de troisième stade. L'azadirachtine a sévèrement réduit la croissance larvaire à des concentrations de 1 et 10 ppm dans une diète méridique et, éventuellement, a causé 100% de mortalité à 10 ppm et 90% à 1 ppm. A 0.1 ppm l'azadirachtine n'a pas eu d'effet significatif sur les larves maïs a modifié l'indice de masculinité en faveur des mâles au moment de l'émergence et a empêché l'oviposition chez les femelles. Les indices nutritionnels pour les larves naïves de troisième âge et celles ayant subi une accoutumance suggèrent que la réduction de croissance est le résultat d'une intoxication comme le démontre une efficacité réduite de transformation chez les groupes traités à l'azadirachtine, plutôt que des changements de digestibilité. Il n'y a pas d'évidence claire de tolérance dans le groupe ayant subi l'accoutumance. Les résultats suggèrent qu'à 10 ppm l'azadirachtine est un insecticide botanique efficace envers O. nubilalis.
    Notes: Abstract Azadirachtin, a triterpenoid substance from the neem tree, Azadirachta indica A. Juss., Meliaceae, was evaluated for its antifeedant and insecticidal properties to the European corn borer Ostrinia nubilalis Hübner. The 50% protective concentration for larval feeding on treated corn disks (PC50) was 3.5 ppm for neonate larvae and 24 ppm for third instar larvae. Azadirachtin severely reduced larval growth at 1 and 10 ppm in a meridic diet and eventually caused 100% mortality at 10 ppm and 90% at 1 ppm. At 0.1 ppm azadirachtin showed no significant effect on larvae but altered the sex ratio in favor of male moths during adult emergence and arrested oviposition of female moths. Nutritional indices for naive and habituated third instar larvae suggested that reduction of growth was due to toxicity as shown by a lowered efficiency of conversion in the azadirachtin treated groups, rather than changes in digestibility. No clear evidence of tolerance was observed in the habituated group. The data suggest that at 10 ppm azadirachtin is an effective botanical insecticide for control of O. nubilalis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00163349
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  • 6
    Electronic Resource
    Electronic Resource
    Constituents of host- and non-host plants deterring oviposition by the cabbage butterfly, Pieris rapae (1985)
    Springer
    Entomologia experimentalis et applicata 39 (1985), S. 21-26 
    Details
    ISSN: 1570-7458
    Keywords: Lepidoptera ; Pieridae ; Pieris ; cabbage ; oviposition deterrents ; host selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Die Eiablage von Pieris rapae auf Kohl wurde gehemmt von einem Homogenisat aus Kohlblättern, das auf intakte Pflanzen gesprüht wurde. Ether-Extrakte der Kohlblätter wirkten im Gegensatz zu Wasserextrakten abschreckend. Ebenso zeigten Hexanextrakte anderer Wirtspflanzen eine hemmende Wirkung auf die Eiablage, während Wasserextrakte anderer Wirtspflanzen keine Wirkung aufwiesen. Dagegen aber verhinderten sowohl polare als auch unpolare Extrakte von Nicht-Wirtspflanzen die Eiablagen. Polare, abschreckende Substanzen in den Nicht-Wirtspflanzen Erysimum cheiranthoides und Capsella bursa-pastoris (Cruciferae) könnten Ursache dafür sein, dass P. rapae diese Pflanzen meidet. Chemische Substanzen mit sowohl abschreckender als auch stimulierender Wirkung spielen offensichtlich eine bedeutende Rolle für legebereite Schmetterlingsweibchen bei der Auswahl von Pflanzen als geeigneten Eiablageplatz.
    Notes: Abstract Oviposition by Pieris rapae L. on cabbage was deterred by homogenized cabbage tissue sprayed onto intact plants. Ether extracts of cabbage also were deterrent, but water extracts were not. Hexane extracts of other host plants deterred oviposition and water extracts had little or no effect. Polar as well as non-polar extracts of non-host plants inhibited oviposition. Polar deterrents in the non-host crucifers, Erysimum cheiranthoides and Capsella bursa-pastoris may explain the avoidance of these plants by P. rapae. Chemical deterrents, as well as stimulants, apparently play a major role in the acceptance or rejection of plants as hosts by ovipositing female butterflies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00338520
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  • 7
    Electronic Resource
    Electronic Resource
    Failure of calcium to stimulate Na, K-ATPase in the presence of EDTA (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 1048-1051 
    Details
    ISSN: 1420-9071
    Keywords: Na, K-ATPase ; calcium ; calmodulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The effect of calcium on Na, K-ATPase activity of rat brain homogenates and its modification by the chelating agent EDTA has been investigated. In the absence of EDTA, free calcium (approximately 10−6mol/l) stimulates Na,K-ATPase activity; in the presence of EDTA the same concentration of free calcium is without effect on the enzyme. In the absence of EDTA the stimulation by calcium of Na,-K-ATPase activity is enhanced by the additional presence of calmodulin but in the presence of EDTA, even when calmodulin is added to excess, calcium still fails to stimulate the enzyme. The possibility that EDTA interferes with an interaction between a calcium-calmodulin complex and Na,K-ATPase is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952137
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  • 8
    Electronic Resource
    Electronic Resource
    Mechanical and biochemical characterization of the contraction elicited by a calcium-independent myosin light chain kinase in chemically skinned smooth muscle (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 1002-1006 
    Details
    ISSN: 1420-9071
    Keywords: Smooth muscle ; calcium ; myosin light chain kinase ; regulation of contraction ; ATPase ; mechanics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The contraction induced by a Ca2+-independent myosin light chain kinase (MLCK-) was characterized in terms of isometric force (Fo), immediate elastic recoil (SE), unloaded shortening velocity (Vus), shortening under a constant load and ATPase activity of chemically skinned smooth muscle preparations. These parameters were compared to those measured in a Ca2+-induced contraction to assess the nature of cross bridge interaction in the MLCK-induced contraction. Fo developed in chicken gizzard fibers as well as SE were similar in contractions elicited by either agent. Vus in the contraction induced by MLCK-(0.36 mg/ml) was similar though averaged 39.3±8.9% less than Vus induced by Ca2+ (1.6x10−6M) in the control fibers. Addition of Ca2+ (1.6x10−6M) to a contraction induced by MLCK-resulted in small increases in both Fo and Vus. Shortening under a constant load was similar for both types of contractions. The contraction induced by MLCK-was accompanied by an increased rate of ATP hydrolysis. The MLCK-induced contraction is thus kinetically similar though not identical to a contraction induced by Ca2+. We conclude that with respect to actin-myosin interaction, MLCK- and Ca2+-induced contractions are similar.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952121
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  • 9
    Electronic Resource
    Electronic Resource
    The chromaffin granule proton pump and calcium-dependent exocytosis in bovine adrenal medullary cells (1985)
    Springer
    The journal of membrane biology 83 (1985), S. 147-156 
    Details
    ISSN: 1432-1424
    Keywords: Exocytosis ; proton pump ; calcium ; secretion ; adrenal medulla
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary Calcium-dependent exocytosis in ‘leaky’ bovine adrenal medullary cells has a requirement for Mg-ATP. One possibility is that exocytosis depends in some way on the operation of the ATP-dependent proton pump that serves to maintain the core of the secretory vesicles both acid and at a positive potential with respect to the cytosol. This possibility has been tested in ‘leaky’ cells by monitoring exocytosis under conditions where the secretory vesicle pH and potential gradients are measuredin situ. The results show rather clearly that exocytosis can persist, with unchanged Ca-activation kinetics, in the virtual absence both of a difference in pH between the cytosol and secretory vesicle core and also of a difference in potential across the vesicle membrane. The results do not, however, exclude a small modulating effect of vesicle pH or potential on exocytosis and shed no light on whether or not the plasma membrane potential, which is maintained close to zero in these experiments, influences exocytosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01868746
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  • 10
    Electronic Resource
    Electronic Resource
    Divalent cations and the phosphatase activity of the (Na + K)-dependent ATPase (1985)
    Springer
    Journal of bioenergetics and biomembranes 17 (1985), S. 183-200 
    Details
    ISSN: 1573-6881
    Keywords: (Na + K)-ATPase ; phosphatase ; calcium ; magnesium ; manganese ; oligomycin ; dimethyl sulfoxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Physics
    Notes: Abstract Phosphatase activity of a kidney (Na + K)-ATPase preparation was optimally active with Mg2+ plus K+. Mn2+ was less effective and Ca2+ could not substitute for Mg2+. However, adding Ca2+ with Mg2+ or substituting Mn2+ for Mg2+ activated it appreciably in the absence of added K+, and all three divalent cations decreased apparent affinity for K+. Inhibition by Na+ decreased with higher Mg2+ concentrations, when Ca2+ was added, and when Mn2+ was substituted for Mg2+. Dimethyl sulfoxide, which favorsE 2 conformations of the enzyme, increased apparent affinity for K+, whereas oligomycin, which favorsE 1 conformations, decreased it. These observations are interpretable in terms of activation through two classes of cation sites. (i) At divalent cation sites, Mg2+ and Mn2+, favoring (under these conditions)E 2 conformations, are effective, whereas Ca2+, favoringE 1, is not, and monovalent cations complete. (ii) At monovalent cation sites divalent cations compete with K+, and although Ca2+ and Mn2+ are fairly effective, Mg2+ is a poor substitute for K+, while Na+ at these sites favorsE 1 conformations. K+ increases theK m for substrate, but both Ca2+ and Mn2+ decrease it, perhaps by competing with K+. On the other hand, phosphatase activity in the presence of Na+ plus K+ is stimulated by dimethyl sulfoxide, by higher concentrations of Mg2+ and Mn2+, but not by adding Ca2+; this is consistent with stimulation occurring through facilitation of an E1 to E2 transition, perhaps an E1-P to E2-P step like that in the (Na + K)-ATPase reaction sequence. However, oligomycin stimulates phosphatase activity with Mg2+ plus Na+ alone or Mg2+ plus Na+ plus low K+: this effect of oligomycin may reflect acceleration, in the absence of adequate K+, of an alternative E2-P to E1 pathway bypassing the monovalent cation-activated steps in the hydrolytic sequence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00751061
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