ISSN:
1573-5028
Keywords:
β-fructofuranosidase
;
invertase
;
gene expression
;
gene structure
;
flower buds
;
Daucus carota
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Three genomic clones (Inv *Dc1, Inv *Dc2 and Inv *Dc3) were isolated by using the cDNA for carrot cell wall β-fructofuranosidase as a probe. The expression patterns of the three genes differed markedly. High levels of Inv *Dc1 transcripts were found in leaves and roots of young carrot, whereas in plants with developing tap roots no transcripts were detected. A high level of mRNA of Inv *Dc1 was also present in suspension-cultured cells. In developing reproductive organs, only low levels of transcripts of Inv *Dc1 were found in flower buds and flowers and none at later stages of development. In contrast, Inv *Dc2 and Inv *Dc3 were not expressed in vegetative plant organs. Invb1 *Dc1 was exclusively and strongly expressed in flower buds, and Inv *Dc3 at a very low level in suspension-cultured cells.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00042049
