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  • 1985-1989  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Chemical basis of host-plant resistance to aphids (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 10 (1987), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The importance of host-plant resistance of crop plants in the biological control of aphids and the formation of aphid biotypes is discussed. The rapid response of plant breeders to the formation of new aphid biotypes requires detailed knowledge on the mechanism of host-plant resistance. Current knowledge on the chemical basis of host-plant resistance to aphids is summarized. Of central importance to this relationship is the aphid-pectinase plant-pectin interdependence. Parallels between the mechanism of aphid-plant and pathogen-plant attack are pointed out and how aphid bacterial endo-symbiotes play a central role in host-plant selection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1365-3040.ep11603601
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Host-plant oligosaccharins in the honeydew ofSchizaphis graminum (Rondani) (Insecta, Aphididae) (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 451-452 
    Details
    ISSN: 1420-9071
    Keywords: Aphids ; honeydew ; phloem ; pectin ; pectinase ; polysaccharase ; cell wall ; translocation ; phytoalexin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The honeydew of the aphidSchizaphis graminum (Rondani) contains hetero-oligosaccharides (mol. wt〉2200 D) having neutral sugar and uronic acid compositions similar to the pectic substances of the host plant,Sorghum biocolor (L.) Moench. These oligosaccharides are pectic fragments which result from the depolymerization of pectic substances in the phloem by aphid salivary polysaccharases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02118654
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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