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  • 1
    Electronic Resource
    Electronic Resource
    Attempts to overcome postfertilization barrier in interspecific crosses of the genus Lens (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 114 (1995), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Wild relatives are a potential source of genetic diversity to lentil (Lens culinaris Medik). The objective of this research was to obtain viable interspecific hybrids between the domesticated lentil and its wild relatives.The paper details the results of a number of interspecific crosses among L. culinaris, L. orientalis, L. odemensis, L. ervoides and L. nigricans. Viable hybrids were produced between L. culinaris × L. orientalis, L. culinaris × L. nigricans, L. culinaris × L. ervoides and between L. culinaris × L. odemensis. Further viable hybrids were obtained between L. culinaris and L. ervoides, which have the potential to be a ‘bridge’ in hybridization to L. culinaris for specific L. nicrigans lines which proved recalcitrant in L. culinaris × L. nigricans crosses. This is the first time that four wild species of lentils have been used successfully in hybridization with cultivated lentils, and viable hybrids produced. This paper also suggests that the artificial supplement of GA3, hormone is needed after fertilization for the normal growth of the hybrid embryo, possibly as the natural GA3 production is restricted with alien pollinations in cultivated lentils in both F1 and backcross hybrids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1995.tb00859.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of plant hormones on white clover mosaic potexvirus double-stranded RNA (2000)
    Oxford, UK : Blackwell Science Ltd
    Plant pathology 49 (2000), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The double-stranded RNAs (dsRNA) produced during the replication of white clover mosaic potexvirus (WClMV) in the primary leaves of Phaseolus vulgaris during the 10 days following inoculation were investigated. Replication of a large dsRNA fragment (dsRNA 1) occurred within 24 h of inoculation and probably represents the replicative form of the genomic RNA. A second dsRNA fragment (dsRNA 5) appeared at day 3, and four other dsRNAs were detected from day 5; the putative functions of these are unknown, however their appearance coincided with a rapid increase in virus titre. Hormone treatments that inhibited virus replication altered the production of these dsRNAs. Dihydrozeatin, jasmonic acid and salicylic acid inhibited production of all dsRNAs except dsRNA 1, while 1-amino-1-cyclopropane carboxylic acid reduced the levels of dsRNAs produced but did not alter the pattern of expression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3059.2000.00476.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    In vitro propagation ofLens species and their F1 interspecific hybrids (1997)
    Springer
    Plant cell, tissue and organ culture 47 (1997), S. 169-176 
    Details
    ISSN: 1573-5044
    Keywords: Lentils ; wild relatives ; micropropagation ; media optimization ; growth regulators ; nodal segments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract As an initial step in establishing interspecific hybridization to broaden the genetic basis of lentils [Lens culinaris ssp.culinaris (Medikus) Williams], a set of experiments was carried out to produce an efficient in vitro protocol for propagation of lentil and two of its wild relatives (Lens ervoides andLens culinaris ssp.orientalis). The objective of the experiments was to optimize the media (Murashige and Skoog) to regenerate shootsin vitro from nodal segments without a callogenic phase. The number of shoots per explant, the number of nodes per shoot and shoot length showed that species differences, gibberellic acid and benzyladenine levels had the largest effects, with only minor interaction effects. The experiments therefore identified a standard protocol which gave the optimum levels of growth regulators, Murashige and Skoog (MS) salts and sucrose concentrations for maximum plant regeneration from the nodal segment of these species. The medium recommended for optimal shoot regeneration without a callogenic stage contained 2.89 μM GA3 in combination with 1.11 μM BA in MS medium lacking sucrose. The optimal medium for root induction on these shoots had the MS medium supplemented with 5.37 μM NAA. Final successful establishment of regenerated plants was completed by the transfer to a third medium containing half-strength MS salts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02318954
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    Paper (German National Licenses)
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