S-specific proteins in styles of self-incompatible Nicotiana alata
- 1 March 1981
- journal article
- research article
- Published by Springer Nature in Theoretical and Applied Genetics
- Vol. 59 (3) , 185-190
- https://doi.org/10.1007/bf00264974
Abstract
A comparison of the stigma protein patterns of individual plants of the inbred- and cross-progenies in Nicotiana alata by isoelectric focusing revealed the presence of S-specific proteins. The S allele-protein relationship was found for three different S alleles. The S-specific proteins occurred in both stigma and stylar parts of the pistil whereas they were absent in leaves. In clone OWL the concentration of S-specific proteins in the stigma increased gradually during floral development. The shift from compatibility to incompatibility was not accompanied by an abrupt increase in concentration of the S-proteins.Keywords
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