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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Sexual plant reproduction 3 (1990), S. 207-212 
    ISSN: 1432-2145
    Keywords: Self-incompatibility ; Pollen ; Stigma ; Pistil ; Rejection ; Bioassay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Self-incompatibility is a form of plant growth regulation acting on pollen and the pollen tube. It could therefore be amenable to study by bioassay techniques, which have been used successfully in the past to show the existence of other plant growth regulators and to assist in their purification. The genetics of self-incompatibility is well understood, and yet there have been difficulties in applying bioassays to the study of the supposed gene products. This review examines published accounts of attempts made to use the bioassay technique in the study of self-incompatibility. In general, bioassays for sporophytic incompatibility have been more successful than gametophytic tests, but none is entirely convincing. Despite this, the authors believe it is worthwhile for those involved with fertilization incompatibility research to persist in trying to improve the bioassay for use as an analytical tool.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 64 (1983), S. 259-262 
    ISSN: 1432-2242
    Keywords: Self incompatibility ; Phytic acid ; Petunia hybrida ; Pollen ; Stigma ; Style
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary In three clones of Petunia hybrida with different incompatibility genes, phytic acid is detected exclusively in pollen, stigma and style. These are all parts of the floral structure involved in the incompatibility reaction. Phytase activity was detected in these tissues as well as in the ovary. The level of phytic acid and phytase activity varied between clones with different S alleles. This difference was most evident in stigma and style. The pattern of phytic acid breakdown following pollination depends on whether pollen and style form a compatible or incompatible combination. Incompatible pollination results in a higher rate of degradation. Consideration is given to the relationship between breakdown of phytic acid to myo-inositol and cell wall thickening and plug formation, which occurs to a greater extent in the incompatible combination.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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