Alkaloid Biosynthesis in the Early Stages of the Germination of Argemone mexicana L. (Papaveraceae).
Plants (Basel)
; 10(10)2021 Oct 19.
Article
em En
| MEDLINE
| ID: mdl-34686035
ABSTRACT
The synthesis of the benzylisoquinoline alkaloids, sanguinarine and berberine, was monitored in Argemone mexicana L. (Papaveracea) throughout the early stages of its hypocotyl and seedling development. Sanguinarine was detected in the cotyledons right after hypocotyl emergence, and it increased continuously until the apical hook unbent, prior to the cotyledonary leaves unfolding, when it abruptly fell. In the cotyledonary leaves, it also remained at low levels. Throughout development, berberine accumulation required the formation of cotyledonary leaves, whereas it was quickly detected in the hypocotyl from the time it emerged. Interestingly, the alkaloids detected in the cotyledons could have been imported from hypocotyls, because no transcriptional activity was detected in there. However, after turning into cotyledonary leaves, important levels of gene expression were noted. Taken together, these results suggest that the patterns of alkaloid tissue distribution are established from very early development, and might require transport systems.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Plants (Basel)
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
CH
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SUIZA
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SUÍÇA
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SWITZERLAND