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Expression of a Patatin-like Protein in the Anthers of Potato and Sweet Pepper Flowers.
Vancanneyt, G.; Sonnewald, U.; Hofgen, R.; Willmitzer, L..
Afiliação
  • Vancanneyt G; Institut fur Genbiologische Forschung GmbH, Ihnestrasse 63, D-1000 Berlin 33, Federal Republic of Germany.
Plant Cell ; 1(5): 533-540, 1989 May.
Article em En | MEDLINE | ID: mdl-12359901
Patatin, the major glycoprotein in potato tubers, is encoded by a multigene family. RNA and protein analyses reveal that a homologous mRNA and an immunologically cross-reacting protein can be found in potato flowers, which is similar to patatin in that it displays a lipid acyl hydrolase activity. The patatin-like protein found in flowers has a higher molecular weight than the authentic tuber patatin. Deglycosylation experiments show that this is not due to differences in the glycosylation pattern. Immunocytochemical analysis shows the patatin-like protein to be present only in the epidermal cell layer of the anther, the exothecium, and in petals of potato flowers. Furthermore, the fact that a patatin-like protein can be detected in a similar tissue in sweet pepper, another solanaceous plant, could give a clue concerning the evolutionary origin of patatin.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 1989 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 1989 Tipo de documento: Article