
%0 Journal Article
%A Mcclure, BA 
%A Haring, V 
%A Ebert, PR 
%A Anderson, MA 
%A Bacic, A 
%A Clarke, AE 
%T Molecular Genetics and Biology of Self-Incompatibility in <I>Nicotiana alata</I>, an Ornamental Tobacco
%J Functional Plant Biology
%D 1990/06/01
%V 17
%N 3
%P 345-353
%K 
%R https://doi.org/10.1071/PP9900345
%U https://www.publish.csiro.au/paper/PP9900345 
%X Glycoproteins are present in the styles of several self-incompatible species within the Solanaceae which segregate with particular alleles of the S-(self-incompatibility) gene. The amino acid sequences of style glycoproteins corresponding to different S-alleles of N. alata are homologous in some regions and variable in others. Homologous regions include N-terminal sequences as well as most of the glycosylation sites and cysteine residues. The isolated style S-glycoproteins inhibit in vitro growth of pollen tubes of several S-genotypes, with some specificity in the interaction. The isolated S-glycoproteins have ribonuclease activity which may be involved in their action in arrest of growth of incompatible (self) pollen. 
