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  • Beta vulgaris  (2)
  • Monocytes
  • Springer  (2)
  • American Chemical Society
  • 1995-1999  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Inheritance of resistance to beet necrotic yellow vein virus in Beta vulgaris conferred by a second gene for resistance (1999)
    Springer
    Theoretical and applied genetics 99 (1999), S. 740-746 
    Details
    ISSN: 1432-2242
    Keywords: Key words Beet necrotic yellow vein virus ; Beta vulgaris ; Inheritance ; Resistance genes ; Rhizomania ; STS markers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract   Rhizomania is a serious disease of sugar beet, caused by beet necrotic yellow vein virus (BNYVV). The disease can only be controlled by the use of resistant cultivars. The accession Holly contains a single dominant gene for resistance, called Rz. The identification of a locus for resistance that differs from Rz would provide possibilities to produce cultivars with multiple resistance to BNYVV. Inheritance of resistance to BNYVV was studied by screening progenies of crosses between resistant plants of the accessions Beta vulgaris subsp. maritima WB42 and B. vulgaris subsp. vulgaris Holly-1–4 or R104. Observed and expected segregation ratios were compared to elucidate whether the resistance genes in the three accessions are alleles or situated on different loci. STS markers, linked to the genes for resistance, were used to study the segregation in more detail. The results demonstrated that the genes for resistance to BNYVV inHolly-1-4 and WB42 are closely linked. The gene for resistance in R104 is at the same locus as in Holly-1-4, and also closely linked to the gene in WB42. As the Holly resistance gene has been named Rz, the name Rz2 is proposed to refer to the resistance gene in WB42. Consequently, the gene Rz should be referred to as Rz1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051292
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Erythromycin as a tool to investigate the tetrapyrrole biosynthetic pathways in habituated and normal sugarbeet calli (1997)
    Springer
    Plant growth regulation 23 (1997), S. 147-152 
    Details
    ISSN: 1573-5087
    Keywords: 5-aminolevulinic acid ; 5-aminolevulinic acid synthase ; Beta vulgaris ; callus ; catalase ; heme ; Shemin pathway
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Erythromycin (ERT) has been shown to reduce the 5-aminolevulinic acid (ALA) synthesizing capacity of a normal (N) chlorophyllous sugarbeet callus, grown under light, in contrast to a habituated achlorophyllous non-organogenic (HNO) callus of the same species. Similar effects were obtained on total hemes and on catalase which is a hemoprotein used as marker. The effect of ERT, which is an inhibitor of plastid differentiation and of chlorophyll synthesis, was reversed in the N callus by a supply of glycine and succinate. The compounds are the precursors of ALA synthesized through 5-aminolevulinic acid synthase (ALAS) which is implied in the Shemin pathway. The involvement of ALAS appeared to be favoured when plastids were undifferentiated (HNO callus) or when plastids were inefficient (N callus under darkness or under light after ERT treatment).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005854112134
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    Paper (German National Licenses)
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