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  • 1
    Electronic Resource
    Electronic Resource
    Stigma proteins of the two loci self-incompatible grass Phalaris coerulescens (1988)
    Springer
    Sexual plant reproduction 1 (1988), S. 25-27 
    Details
    ISSN: 1432-2145
    Keywords: Self-incompatibility ; Gramineae ; Two loci system ; Phalaris coerulescens ; Stigma proteins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Protein extracts from four self-incompatible genotypes of Phalaris coerulescens were subjected to analysis by sodium dodecyl sulphate-polyacrylamide gel electrophoresis and ultra-thin isoelectric focusing. A comparison between stigma, root and leaf extracts showed that there was no significant difference in electrophoretic or isoelectric focusing patterns between the genotypes for both root and leaf proteins. However, stigma protein patterns did vary between genotypes especially within the molecular weight region of 43 000–97 000 and within the pI range 5–7. The stigma-specific changes strongly suggest a link between the self-incompatible genotype and these stigma proteins. However, because there are two loci involved, it is not yet possible to precisely assign particular proteins to each S- or Z-allele.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00227018
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Bioassays for incompatibility (1990)
    Springer
    Sexual plant reproduction 3 (1990), S. 207-212 
    Details
    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
    URL: http://dx.doi.org/10.1007/BF00202876
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Self-incompatibility alleles control a low molecular weight, basic protein in pistils of Petunia hybrida (1986)
    Springer
    Theoretical and applied genetics 71 (1986), S. 815-819 
    Details
    ISSN: 1432-2242
    Keywords: Self-incompatibility ; Petunia hybrida ; Salleles ; Pistil proteins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Proteins extracted from the pistils of several clones of Petunia hybrida carrying differing pairs of S alleles were examined by gel electrophoresis. The major protein of pistils, a basic glycoprotein of relatively low molecular weight, showed properties which varied in a simple manner with the S genotype. For each S allele we were able to assign a specific molecular weight (ranging from 27,000 to 33,000) and isoelectric point (in the range 8.3 to 8.7) for this putative S protein. Pistils homozygous at the S locus showed only one major protein on two-dimensional gel electrophoresis, while pistils from plants heterozygous at the S locus showed two. No evidence was obtained for the presence of this putative S protein in pollen extracts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276423
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    Paper (German National Licenses)
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