Expression of a Patatin-like Protein in the Anthers of Potato and Sweet Pepper Flowers.
Plant Cell
; 1(5): 533-540, 1989 May.
Article
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| MEDLINE
| ID: mdl-12359901
ABSTRACT
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.
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Bases de datos:
MEDLINE
Idioma:
En
Revista:
Plant Cell
Asunto de la revista:
BOTANICA
Año:
1989
Tipo del documento:
Article