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  • Coleoptera  (5)
  • Bacteria  (3)
  • Springer  (8)
  • American Geophysical Union (AGU)
  • American Physical Society (APS)
  • Elsevier
  • 1990-1994  (8)
Collection
Keywords
Publisher
  • Springer  (8)
  • American Geophysical Union (AGU)
  • American Physical Society (APS)
  • Elsevier
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Aggregation pheromone of palmetto weevil,Rhynchophorus cruentatus (F.) (Coleoptera: Curculionidae) (1994)
    Springer
    Journal of chemical ecology 20 (1994), S. 505-515 
    Details
    ISSN: 1573-1561
    Keywords: Coleoptera ; Curculionidae ; Rhynchophorus cruentatus ; palmetto weevil ; S. palmetto ; aggregation pheromone ; 5-methyl-4-octanol ; cruentol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract 5-Methyl-4-octanol is the major aggregation pheromone of the palmetto weevil,Rhynchophorus cruentatus (F.). The pheromone (cruentol) was identified by coupled gas chromatographic-electroantennographic (GC-EAD) analysis of male-produced volatiles, coupled GC-mass spectrometry (MS) in electron impact and chemical ionization mode, and coupled GC-high resolution MS. In laboratory and field assays, a diastereomeric mixture of synthetic cruentol greatly enhanced attraction of weevils to cabbage palmetto,Sabal palmetto (Walter), stem tissue, indicating that cruentol and host volatiles are synergistically attractive. An attractive lure in combination with efficient traps should facilitate development of semiochemical-based management forR. cruentatus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02059593
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  • 2
    Electronic Resource
    Electronic Resource
    Bacterial interactions with silver (1990)
    Springer
    BioMetals 3 (1990), S. 151-154 
    Details
    ISSN: 1572-8773
    Keywords: Silver ; Nickel ; Bacteria ; Toxicity ; Metal tolerance ; Accumulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary This review examines interactions between bacteria and the biologically non-essential metal, silver. Aspects of silver toxicity, tolerance and accumulation (possible binding and uptake as opposed to energy-dependent transport) in bacteria are discussed. In addition, plasmid biology is examined briefly since little information is available on the exact mechanism(s) of plasmid-endoced silver resistance in bacteria.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01140573
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  • 3
    Electronic Resource
    Electronic Resource
    Life cycle and host specificity of the heliotrope weevil,Pachycerus cordiger (=Madidus auct.) [Col.: Curculionidae] (1990)
    Springer
    BioControl 35 (1990), S. 475-484 
    Details
    ISSN: 1573-8248
    Keywords: Life cycle ; Host specificity ; Pachycerus cordiger ; Coleoptera ; Curculionidae ; Heliotropeum europeaeum ; Boraginaceae ; Biological control ; Cycle biologique ; spécificité ; Pachycerus cordiger ; Coleoptera: Curculionidae ; Heliotropeum europaeum ; Boraginaceae ; lutte biologique
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Le charançonPachycerus cordiger Germar [Curculionidae: Cleonini] est prometteur pour lutter contre la mauvaise herbeHeliotropium europaeum L. (Boraginaceae) en Australia. L'adulte se nourrit des feuilles et la larve construit une cellule de terre autour d'une racine principale dont elle se nourrit. Il n'y a qu'une seule génération par an. Les nouveaux adultes passent l'hiver toujours dans leurs cellules avant de sortir au printemps, saison à partir de laquelle ils commencent à se nourrir, à s'accoupler et à pondre sur leurs plantes hôtes de Mai jusqu'à la fin de Juillet. Des adultes et des larves du 1er stade ont été testés sur 7 espèces de Boraginacées et 31 des plus importantes espèces cultivées.P. cordiger s'est montré spécifique des Boraginacées. Selon les observations sur le terrain, ce charançon est probablement limité aux espèces annuelles d'Heliotropium de l'été. Un parasite des œufs,Caenocrepis ?bothynoderi Gromakov [Hymenoptera: Pteromalidae] est très répandu et peut occasionner jusqu'à 18% de mortalité.
    Notes: Abstract Pachycerus cordiger Germar (Curculionidae: Cleonini) is a potential agent for the biological control ofHeliotropium europaeum L. (Boraginaceae) in Australia. Adults feed on the leaves and larvae feed on the main roots of the weed within an earthen cell. These is one generation per year. Adults overwinter in the cells before emerging in late spring when they begin to feed, mate and oviposit on their host plants from late May until late July. Seven Boraginaceae and 31 economically important crop species were tested using adults and 1st instar larvae.P. cordiger was found to be specific to the Boraginaceae. Field observations strongly suggested that the weevil is restricted to summer-annualHeliotropium species. A widespread egg parasite,Caenocrepis? bothynoderi Gromakov [Hymenoptera: Pteromalidae], caused up to 18% mortality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02375273
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  • 4
    Electronic Resource
    Electronic Resource
    Bacterial conjugation betweenEscherichia coli andPseudomonas spp. donor and recipient cells in soil (1990)
    Springer
    Journal of industrial microbiology and biotechnology 5 (1990), S. 79-84 
    Details
    ISSN: 1476-5535
    Keywords: Bacteria ; Soil ; Conjugation ; Gene transfer ; Plasmids ; Survival
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Experiments conducted in microcosms containing loam soil samples inoculated with eitherE. coli orPseudomonas spp. donor and recipient cells showed that bacterial cells survived and conjugated over a 24-h incubation period.E. coli transconjugants were detected 6 h after donor and recipient strains were introduced into sterile soil samples. In non-sterile soil samples, transconjugants were detected between 8 and 24 h incubation.Pseudomonas transconjugants were recovered from sterile soil samples between 6 and 12 h after their introduction and as early as 2 h in non-sterile soil. The results show that genetic interactions occur in non-sterile soil in relatively short periods of time at relatively high transfer frequencies (10−3 to 10−4). Studies on genetic interactions in soil are becoming necessary in risk assessment/environmental impact studies prior to the release of genetically engineered or modified organisms into uncontained environments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01573856
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  • 5
    Electronic Resource
    Electronic Resource
    Bacterial species in raw and cured compost from a large-scale urban composter (1994)
    Springer
    Journal of industrial microbiology and biotechnology 13 (1994), S. 177-182 
    Details
    ISSN: 1476-5535
    Keywords: Antibiotic resistance ; Bacteria ; Compost ; Metal-resistance ; Thermophilic bacteria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Raw and cured compost samples from a large-scale urban composter were studied over a period of eight months to gain information on bacterial species present. Total viable, aerobic heterotrophic bacteria, lactose-positive bacteria, antibiotic and metal-resistant bacteria and thermophilic bacteria were enumerated. Both raw and cured compost samples contained metal and antibiotic-tolerant bacteria (〈Log 3.0 to Log 8.5 CFU g−1 compost) as well as high numbers (as high as Log 7.4 CFU g−1 dry weight compost) of thermophilic bacteria isolated by growth at 55 °C. Selected colonies were also identified using the Biolog 95 substrate identification system.Escherichia coli andSalmonella spp. were not detected in compost samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01584004
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  • 6
    Electronic Resource
    Electronic Resource
    Correlation of phenolic acid content of maize to resistance toSitophilus zeamais, the maize weevil, in CIMMYT'S collections (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 301-315 
    Details
    ISSN: 1573-1561
    Keywords: Phenolic acids ; resistance ; susceptibility ; maize ; maize weevil ; Sitophilus zeamais ; Coleoptera ; Curculionidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The (E)-ferulic acid content of the grain of nine populations of land races of maize derived from CIMMYT's collections was found to be negatively correlated to susceptibility characteristics towards the maize weevilSitophilus zeamais. Correlation coefficients for six susceptibility parameters and (E)-ferulic acid content were significant and ranged from −0.58 to −0.79. A multiple regression analysis by the SAS forward procedure using the primary seed characteristics associated with susceptibility indicated that the ferulic acid content was the only significant factor in explaining variation in at least two susceptibility parameters: the Dobie index and adult preference. In 15 CIMMYT pools, correlations between four susceptibility parameters and (E)-ferulic acid content were also significant (−0.76 to −0.81). The results suggest that phenolic acid content is a leading indicator of grain resistance or susceptibility to insects and may represent a newly identified mechanism of resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01021766
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  • 7
    Electronic Resource
    Electronic Resource
    Impact of acidic deposition onEncelia farinosa gray (Compositae: Asteraceae) and feeding preferences ofTrirhabda geminata horn (Coleoptera: Chrysomelidae) (1993)
    Springer
    Journal of chemical ecology 19 (1993), S. 97-105 
    Details
    ISSN: 1573-1561
    Keywords: Encelia farinosa ; Asteraceae ; Trirhabda geminata ; Coleoptera ; Chrysomelidae ; feeding preferences ; acidic deposition ; plant stress
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Container grownEncelia farinosa were exposed to three 3-hr episodes of acidic fog (pH 2.5) typical of events in southern California. Adults and larvae of the specialist leaf-feeding herbivore,Trirhabda geminata, preferred to feed on the acidic-treated foliage compared to control fogged (pH 6.3–6.5) foliage. Previous feeding damage on the plants did not affect feeding preference. The acidic-fogged foliage was significantly higher in total nitrogen and soluble protein but not different from control-treated tissue in water content. Stress on native populations of this drought-deciduous shrub caused by atmospheric pollutants may also result in altered feeding ecology of the beetle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987475
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  • 8
    Electronic Resource
    Electronic Resource
    Attraction of male beetles to grubs: Evidence for evolution of a sex pheromone from larval odor (1992)
    Springer
    Journal of chemical ecology 18 (1992), S. 1117-1124 
    Details
    ISSN: 1573-1561
    Keywords: Cyclocephala lurida ; Coleoptera ; Scarabaeidae ; sex pheromone ; chemical communication ; evolution of signals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Females of the scarabaeid beetleCyclocephala lurida produce a volatile sex pheromone which attracts conspecific males. Field experiments demonstrated that larvae of both sexes also emit volatile chemicals that stimulate similar responses in adult males, including attempts by the attracted males to mate with the nonreproductive immature stage. Significantly more adult males were caught in traps baited with conspecific male or female larvae or adult females than in blank control traps. Hexane extracts of both male and female grubs were at least as effective as live larvae in trapping male adults, demonstrating that the behavioral responses are mediated by volatile chemicals. Sensory and behavioral responses of males to sex pheromones emitted by adult females are part of the functional communication system. However, their response to grubs is not functional, because grubs are normally temporally and spatially inaccessible to mate-seeking males. In theory, the evolution of a communication system is problematic because it requires the development of a signal in one sex and the sensory and behavioral attributes to respond to that signal in the other sex. The ontogeny of sex pheromone communication inC. lurida suggests a partial solution to this evolutionary problem. We propose that this sex pheromone communication system is probably derived from noncommunicative volatile chemicals that are lost in adult males and retained by adult females.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00980067
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