Characterization of spermidine synthase and spermine synthase--The polyamine-synthetic enzymes that induce early flowering in Gentiana triflora.
Biochem Biophys Res Commun
; 463(4): 781-6, 2015 Aug 07.
Article
en En
| MEDLINE
| ID: mdl-26056006
ABSTRACT
Polyamines are essential for several living processes in plants. However, regulatory mechanisms of polyamines in herbaceous perennial are almost unknown. Here, we identified homologs of two Arabidopsis polyamine-synthetic enzymes, spermidine synthase (SPDS) and spermine synthase (SPMS) denoted as GtSPDS and GtSPMS, from the gentian plant, Gentiana triflora. Our results showed that recombinant proteins of GtSPDS and GtSPMS possessed SPDS and SPMS activities, respectively. The expression levels of GtSPDS and GtSPMS increased transiently during vegetative to reproductive growth phase and overexpression of the genes hastened flowering, suggesting that these genes are involved in flowering induction in gentian plants.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Espermidina Sintasa
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Espermina Sintasa
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Poliaminas Biogénicas
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Gentiana
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Flores
Idioma:
En
Revista:
Biochem Biophys Res Commun
Año:
2015
Tipo del documento:
Article
País de afiliación:
Japón