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  • Braconidae  (1)
  • Key words Electrofusion  (1)
  • Springer  (2)
  • GeoScienceWorld
  • 1
    Electronic Resource
    Electronic Resource
    Plant allelochemicals and insect parasitoids effects of nicotine onCotesia congregata (say) (Hymenoptera: Braconidae) andHyposoter annulipes (Cresson) (Hymenoptera: Ichneumonidae) (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 1319-1328 
    Details
    ISSN: 1573-1561
    Keywords: Plant allelochemical ; parasitoids ; three trophic level interactions ; nicotine ; Manduca sexta ; Lepidoptera ; Sphingidae ; Spodoptera frugiperda ; Noctuidae ; Cotesia congregata ; Hymenoptera ; Braconidae ; Hyposoter annulipes ; Ichneumonidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Parasitoids developing within tobacco hornworms or fall army-worms exhibit significant differences in development and survival depending on whether their hosts fed on nicotine-free or nicotine-containing diets. The effects of nicotine were more severe on the relatively less adapted parasitoid,H. annulipes than the specialist parasitoid,Cotesia congregata. Labeled alkaloid originally placed in herbivore diet was incorporated in several parasitoid tissues. These results suggest that interactions between plant allelochemicals and parasitoids should be considered in the development of theory on insect herbivory and plant defense.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012351
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  • 2
    Electronic Resource
    Electronic Resource
    Somatic hybridization between the zinc accumulator Thlaspi caerulescens and Brassica napus (1999)
    Springer
    Theoretical and applied genetics 99 (1999), S. 761-771 
    Details
    ISSN: 1432-2242
    Keywords: Key words Electrofusion ; AFLP DNA analysis ; Somatic fusion ; Phytoremediation ; Metal toxicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Somatic hybrids between the zinc hyperaccumulator Thlaspi caerulescens and Brassica napus were produced by electrofusion of protoplasts isolated from each species. Optimization of electrofusion parameters yielded interspecies heteroplasmic fusion rates of up to 13%. Hybrids were selected by screening the growing calli for Zn tolerance. In addition, a second novel selection technique was developed based on the observation that a high proportion of hybrid microcalli grown in liquid media did not adhere to the wall of the culture vessel, while microcalli derived from parental cells did. Seventeen from a total of 64 regenerated plants were conclusively verified as hybrids by AFLP DNA analysis. The hybrid plants were grown in soil for up to 4 months, and at least five flowered. Several of these hybrids survived when grown on high-zinc media.These hybridsaccumulated levels of zinc and cadmium that would have been toxic for B. napus. The data indicate that transfer of the trait for metal hyperaccumulation in plants is possible through somatic hybridization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051295
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