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  • Articles  (5)
  • Other Sources
  • somatic embryogenesis  (3)
  • Solanum tuberosum  (2)
  • Springer  (5)
  • 1955-1959  (5)
  • 1
    Electronic Resource
    Electronic Resource
    The embryogenic potential of rice cell suspensions affects their recovery following cryogenic storage (1955)
    Springer
    Euphytica 85 (1955), S. 347-349 
    Details
    ISSN: 1573-5060
    Keywords: Oryza sativa L. cv. Taipei 309 ; rice ; cryogenic storage ; somatic embryogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The rates of recovery from cryogenic storage of suspension cultures of the Japonica rice cultivar Taipei 309, as determined by the reduction of triphenyl tetrazolium chloride and cell regrowth, were significantly influenced by the embryogenic potential of the non-frozen cultures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023966
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The integration of protoplast fusion-derived material into a potato breeding programme — a review of progress and problems (1955)
    Springer
    Euphytica 85 (1955), S. 451-455 
    Details
    ISSN: 1573-5060
    Keywords: Solanum tuberosum ; somatic hybridization ; regeneration ; asymmetric fusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary This paper reviews investigations into the application of protoplast fusion to the genetic and agronomic improvement of potato. Fusion studies involving Solanum tuberosum are reviewed under the categories of: fusion with wild relatives, dihaploid fusion and asymmetric strategies. The selection and characterisation of putative somatic hybrid material is identified as a critical stage in the process and certain specific aspects of this technology are identified. Future prospects for the wider uptake and integration of these techniques into breeding programmes are also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023979
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  • 3
    Electronic Resource
    Electronic Resource
    Analysis of tissue culture-derived variation in pea (Pisum sativum L.)-preliminary results (1955)
    Springer
    Euphytica 85 (1955), S. 335-339 
    Details
    ISSN: 1573-5060
    Keywords: callus culture ; organogenesis ; pea ; Pisum sativum ; somaclonal variation ; somatic embryogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The possibility of producing agronomically-useful somaclones via organogenesis and somatic embryogenesis from callus cultures of pea (Pisum sativum L.) was studied. Organogenic calli were induced from immature leaflets on MSB medium with NAA and BAP. Embryogenic calli were derived either from immature zygotic embryos (using 2,4-D) or from shoot apices (using picloram) of aseptically-germinated seedlings. The seed progenies (T1 to T3-generation) of primary regenerants were grown in field conditions and their phenotypic variation was evaluated and compared with control, non-tissue culture-derived plant material. In addition, electrophoretic analyses of selected isoenzyme systems and total proteins have been done. The results do not show dramatic changes in qualitative and quantitative traits. The evaluation of at least two future generations (T4, T5) is planned.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023964
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  • 4
    Electronic Resource
    Electronic Resource
    Monitoring genetic fidelity vs somaclonal variation in Norway spruce (Picea abies) somatic embryogenesis by RAPD analysis (1955)
    Springer
    Euphytica 85 (1955), S. 341-345 
    Details
    ISSN: 1573-5060
    Keywords: Picea abies ; genetic stability ; somatic embryogenesis ; RAPD
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Somaclonal variation, which is a welcome source of genetic variation for crop breeding, is unwanted when direct regenerants have to be used in tissue culture mass propagation (eg. in many forest trees), or in the regeneration of genetically transformed plants. Random amplified polymorphic DNA (RAPD) was used to analyse somatic embryos and plants regenerated from embryogenic cell lines in Norway spruce, Picea abies (L.) Karst. RAPD facilitated the identification of clones, as material from the same cell lines shared identical patterns of amplified fragments, whereas regenerants from different cell lines were easily distinguishable by their respective patterns. For comparisons with explant donor genotypes, cell lines were initiated from cotyledons. Some of the seedlings that had parts of their cotyledons removed were grown on as control plants. Somatic embryos regenerated from cotyledon cell lines showed no aberrations in RAPD banding patterns with respect to donor plants. We conclude that gross somaclonal variation is absent in our plant regeneration system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023965
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  • 5
    Electronic Resource
    Electronic Resource
    An assessment of morphogenic and transformation efficiency in a range of varieties of potato (Solanum tuberosum L.) (1955)
    Springer
    Euphytica 85 (1955), S. 101-108 
    Details
    ISSN: 1573-5060
    Keywords: Agrobacterium ; plant regeneration ; potato ; Solanum tuberosum ; tissue culture ; transformation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary To provide a truly genotype-independent transformation system, it is necessary to be able to transform a wide range of potato genotypes. The ability to regenerate shoots in vitro was determined for 34 potato varieties using tuber disc explants. Following a culture regime used extensively in previous studies with the variety Desiree, half of the varieties could be regenerated from tuber discs and half could not. From a sample of varieties that could be regenerated from tuber discs, all but one variety gave transgenic plants. Twelve varieties were evaluated for the capacity to regenerate shoots from leaf and internode explants excised from in vitro grown plants. All of the varieties tested regenerated adventitious shoots. Leaf and internode explants from 5 varieties were subsequently used for transformation, and transgenic plants were produced from two potato varieties that did not give transgenic plants from tuber disc explants. Some varieties could not be transformed by either method, and will require modification of the in vitro regeneration and transformation system to be successful.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023936
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    Paper (German National Licenses)
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