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  • Artikel: DFG Deutsche Nationallizenzen  (4)
  • 1985-1989  (4)
  • Cytokinin  (2)
  • Hydrilla  (1)
  • Shoot population  (1)
Datenquelle
  • Artikel: DFG Deutsche Nationallizenzen  (4)
Materialart
Erscheinungszeitraum
  • 1985-1989  (4)
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Adventitious bud development in embryonic tissue of Pinus caribaea and Pseudotsuga menziesii (1988)
    Springer
    Trees 2 (1988), S. 32-38 
    Details
    ISSN: 1432-2285
    Schlagwort(e): Auxin ; Cytokinin ; Gymnosperm ; Micropropagation ; Tissue culture
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Adventitious bud formation was induced on detached cotyledons and on cotyledons attached to excised embryos of Pinus caribaea and Pseudotsuga menziesii. The embryonic tissue was exposed to the cytokinin 6-benzyl amino purine contained within an agar medium. This exposure resulted in the formation of a meristematic zone, involving both epidermal and sub-epidermal cells, and then nodules on the tissue surface. Some of these nodules were induced to differentiate into bud primordia, and thence shoots, following exposure to a combination of auxin (IAA) and cytokinin. Shoots were produced over the entire surface of detached cotyledons of Ps. menziesii but predominantly on the adaxial surfaces of detached cotyledons of Pi. caribaea and the tips and adaxial surfaces of the cotyledons on the entire embryos of both species. Thus, inter-specific differences in the distribution of competent areas for adventitious bud production were detected in embryos.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00196977
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Adventitious bud development in embryonic tissue ofPinus caribaea andPseudotsuga menziesii (1988)
    Springer
    Trees 2 (1988), S. 32-38 
    Details
    ISSN: 1432-2285
    Schlagwort(e): Auxin ; Cytokinin ; Gymnosperm ; Micropropagation ; Tissue culture
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Adventitious bud formation was induced on detached cotyledons and on cotyledons attached to excised embryos ofPinus caribaea andPseudotsuga menziesii. The embryonic tissue was exposed to the cytokinin 6-benzyl amino purine contained within an agar medium. This exposure resulted in the formation of a meristematic zone, involving both epidermal and sub-epidermal cells, and then nodules on the tissue surface. Some of these nodules were induced to differentiate into bud primordia, and thence shoots, following exposure to a combination of auxin (IAA) and cytokinin. Shoots were produced over the entire surface of detached cotyledons ofPs. menziesii but predominantly on the adaxial surfaces of detached cotyledons ofPi. caribaea and the tips and adaxial surfaces of the cotyledons on the entire embryos of both species. Thus, inter-specific differences in the distribution of competent areas for adventitious bud production were detected in embryos.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01196342
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Response of zooplankton to the reduction and elimination of submerged vegetation by grass carp and herbicide in four Florida lakes (1985)
    Springer
    Hydrobiologia 123 (1985), S. 97-108 
    Details
    ISSN: 1573-5117
    Schlagwort(e): zooplankton ; grass carp ; lakes ; Hydrilla ; vegetation ; Ctenopharyngodon idella
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Zooplankton populations were monitored monthly for a three year period in four Florida lakes. Each lake received an aquatic vegetation control program using grass carp (Ctenopharyngodon idella Val.) and herbicide, either alone or in combination. All aquatic vegetation was eliminated in the three lakes with grass carp; it was severely reduced and exhibited qualitative shifts in the lake treated with herbicide alone. Total number of recorded zooplankton species was reduced in each subsequent year as vegetation was eliminated, but mean density l−1 increased greatly. The overall trend in all lakes was toward increasing numbers of small filter-feeding herbivores, with a shift from copepod and copepod-cladoceran dominated to rotifer and small cladoceran dominated systems. It is suggested that these changes reflect primary plankton response to fluctuations in habitat, food base, and planktivore pressure resulting from gradual macrophyte alteration. Changes observed indicate apparent increases in eutrophy.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00018972
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Propagation in vitro of the apple rootstock M4: effect of phytohormones on shoot quality (1985)
    Springer
    Plant cell, tissue and organ culture 3 (1985), S. 55-60 
    Details
    ISSN: 1573-5044
    Schlagwort(e): Shoot population ; apple shoot cultures ; shoot quality ; micropropagation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The quality of shoots in cultures of the apple rootstock, M4, was used as a criterion for the selection of an optimum medium. The frequency of shoots in defined shoot clases was monitored for each of five media, which differed in the type and concentration of phytohormone. Media containing BA (1.15 mg l-1) and IBA (either 0.15 or 0.20 mg l-1) produced the maximum number of shoots that were desirable for transplantation and acclimatization.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00041656
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
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