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  • 1
    Electronic Resource
    Electronic Resource
    Thionins: properties, possible biological roles and mechanisms of action (1994)
    Springer
    Plant molecular biology 26 (1994), S. 25-37 
    Details
    ISSN: 1573-5028
    Keywords: Antimicrobial ; ion channel ; phosphoinositides ; plant defence ; thionins ; toxins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Thionins are low-molecular-weight proteins (M r ca. 5000) occurring in seeds, stems, roots and leaves of a number of plant species. The different members of this family of plant proteins show both sequence and structural homology, and are toxic to bacteria, fungi, yeasts and various naked cells in vitro. Toxicity requires an electrostatic interaction of the positively charged thionin with the negatively charged phospholipids making up the membrane, followed by either pore formation or a specific interaction with a certain lipid domain. This domain might be composed of phosphoinositides, which mediate transduction of environmental signals in eukaryotes. Their in vitro toxicity to plant pathogenic bacteria and fungi could reflect a direct role in plant defence, although, in view of the many divergent activities displayed by thionins both in vitro and in vivo, a biological role other than inhibition of microbial growth is equally plausible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039517
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Mapping of QTLs involved in nematode resistance, tuber yield and root development in Solanum sp. (1996)
    Springer
    Theoretical and applied genetics 92 (1996), S. 463-470 
    Details
    ISSN: 1432-2242
    Keywords: Key words  RFLPs ; Solanum spegazzinii ; Globodera sp. ; Interlocus interaction ; Intralocus interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract   A backcross population, derived from the cross (S. tuberosum×S. spegazzinii)×S. tuberosum was used to map QTLs involved in nematode resistance, tuber yield and root development. Complete linkage maps were available for the interspecific hybrid parent as well as the S. tuberosum parent, and interval mapping for all traits was performed for both. Additionally, the intra- and inter-locus interactions of the QTLs were examined. The Gro1.2 locus, involved in resistance to G. rostochiensis pathotype Ro1, that was previously mapped in the S. tuberosum×S. spegazzinii F1 population, was located more precisely on chromosome 10. A new resistance locus, Gro1.4, also conferring resistance to G. rostochiensis pathotype Ro1, was found on chromosome 3. Different alleles of this locus originating from both parents contributed to the resistant phenotype, indicating multiallelism at this locus. No interlocus interactions were observed between these two resistance loci. For resistance to G. pallida no QTLs were detected. One minor QTL involved in tuber yield was located on chromosome 4. Two QTLs involved in root development and having large effects were mapped on chromosomes 2 and 6 and an epistatic interaction was found between these two loci.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050150
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Mapping of QTLs involved in nematode resistance, tuber yield and root development in Solanum sp. (1996)
    Springer
    Theoretical and applied genetics 92 (1996), S. 463-470 
    Details
    ISSN: 1432-2242
    Keywords: RFLPs ; Solanum spegazzinii ; Globodera sp ; Interlocus interaction ; Intralocus interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A backcross population, derived from the cross (S. tuberosumxS. spegazzinii)xS. tuberosum was used to map QTLs involved in nematode resistance, tuber yield and root development. Complete linkage maps were available for the interspecific hybrid parent as well as the S. tuberosum parent, and interval mapping for all traits was performed for both. Additionally, the intra- and inter-locus interactions of the QTLs were examined. The Gro1.2 locus, involved in resistance to G. rostochiensis pathotype Ro1, that was previously mapped in the S. tuberosumxS. spegazzinii F1 population, was located more precisely on chromosome 10. A new resistance locus, Gro1.4, also conferring resistance to G. rostochiensis pathotype Ro1, was found on chromosome 3. Different alleles of this locus originating from both parents contributed to the resistant phenotype, indicating multiallelism at this locus. No interlocus interactions were observed between these two resistance loci. For resistance to G. pallida no QTLs were detected. One minor QTL involved in tuber yield was located on chromosome 4. Two QTLs involved in root development and having large effects were mapped on chromosomes 2 and 6 and an epistatic interaction was found between these two loci.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00223694
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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